1//===-- lib/Evaluate/intrinsics.cpp ---------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "flang/Evaluate/intrinsics.h"
10#include "flang/Common/enum-set.h"
11#include "flang/Common/float128.h"
12#include "flang/Common/idioms.h"
13#include "flang/Evaluate/check-expression.h"
14#include "flang/Evaluate/common.h"
15#include "flang/Evaluate/expression.h"
16#include "flang/Evaluate/fold.h"
17#include "flang/Evaluate/shape.h"
18#include "flang/Evaluate/tools.h"
19#include "flang/Evaluate/type.h"
20#include "flang/Semantics/scope.h"
21#include "flang/Semantics/tools.h"
22#include "flang/Support/Fortran.h"
23#include "llvm/Support/raw_ostream.h"
24#include <algorithm>
25#include <cmath>
26#include <map>
27#include <string>
28#include <utility>
29
30using namespace Fortran::parser::literals;
31
32namespace Fortran::evaluate {
33
34class FoldingContext;
35
36// This file defines the supported intrinsic procedures and implements
37// their recognition and validation. It is largely table-driven. See
38// docs/intrinsics.md and section 16 of the Fortran 2018 standard
39// for full details on each of the intrinsics. Be advised, they have
40// complicated details, and the design of these tables has to accommodate
41// that complexity.
42
43// Dummy arguments to generic intrinsic procedures are each specified by
44// their keyword name (rarely used, but always defined), allowable type
45// categories, a kind pattern, a rank pattern, and information about
46// optionality and defaults. The kind and rank patterns are represented
47// here with code values that are significant to the matching/validation engine.
48
49// An actual argument to an intrinsic procedure may be a procedure itself
50// only if the dummy argument is Rank::reduceOperation,
51// KindCode::addressable, or the special case of NULL(MOLD=procedurePointer).
52
53// These are small bit-sets of type category enumerators.
54// Note that typeless (BOZ literal) values don't have a distinct type category.
55// These typeless arguments are represented in the tables as if they were
56// INTEGER with a special "typeless" kind code. Arguments of intrinsic types
57// that can also be typeless values are encoded with an "elementalOrBOZ"
58// rank pattern.
59// Assumed-type (TYPE(*)) dummy arguments can be forwarded along to some
60// intrinsic functions that accept AnyType + Rank::anyOrAssumedRank,
61// AnyType + Rank::arrayOrAssumedRank, or AnyType + Kind::addressable.
62using CategorySet = common::EnumSet<TypeCategory, 8>;
63static constexpr CategorySet IntType{TypeCategory::Integer};
64static constexpr CategorySet UnsignedType{TypeCategory::Unsigned};
65static constexpr CategorySet RealType{TypeCategory::Real};
66static constexpr CategorySet ComplexType{TypeCategory::Complex};
67static constexpr CategorySet CharType{TypeCategory::Character};
68static constexpr CategorySet LogicalType{TypeCategory::Logical};
69static constexpr CategorySet IntOrUnsignedType{IntType | UnsignedType};
70static constexpr CategorySet IntOrRealType{IntType | RealType};
71static constexpr CategorySet IntUnsignedOrRealType{
72 IntType | UnsignedType | RealType};
73static constexpr CategorySet IntOrRealOrCharType{IntType | RealType | CharType};
74static constexpr CategorySet IntOrLogicalType{IntType | LogicalType};
75static constexpr CategorySet FloatingType{RealType | ComplexType};
76static constexpr CategorySet NumericType{
77 IntType | UnsignedType | RealType | ComplexType};
78static constexpr CategorySet RelatableType{
79 IntType | UnsignedType | RealType | CharType};
80static constexpr CategorySet DerivedType{TypeCategory::Derived};
81static constexpr CategorySet IntrinsicType{
82 IntType | UnsignedType | RealType | ComplexType | CharType | LogicalType};
83static constexpr CategorySet AnyType{IntrinsicType | DerivedType};
84
85ENUM_CLASS(KindCode, none, defaultIntegerKind,
86 defaultRealKind, // is also the default COMPLEX kind
87 doublePrecision, quadPrecision, defaultCharKind, defaultLogicalKind,
88 greaterOrEqualToKind, // match kind value greater than or equal to a single
89 // explicit kind value
90 any, // matches any kind value; each instance is independent
91 // match any kind, but all "same" kinds must be equal. For characters, also
92 // implies that lengths must be equal.
93 same,
94 // for characters that only require the same kind, not length
95 sameKind,
96 operand, // match any kind, with promotion (non-standard)
97 typeless, // BOZ literals are INTEGER with this kind
98 ieeeFlagType, // IEEE_FLAG_TYPE from ISO_FORTRAN_EXCEPTION
99 ieeeRoundType, // IEEE_ROUND_TYPE from ISO_FORTRAN_ARITHMETIC
100 eventType, // EVENT_TYPE from module ISO_FORTRAN_ENV (for coarrays)
101 teamType, // TEAM_TYPE from module ISO_FORTRAN_ENV (for coarrays)
102 kindArg, // this argument is KIND=
103 effectiveKind, // for function results: "kindArg" value, possibly defaulted
104 dimArg, // this argument is DIM=
105 likeMultiply, // for DOT_PRODUCT and MATMUL
106 subscript, // address-sized integer
107 size, // default KIND= for SIZE(), UBOUND, &c.
108 addressable, // for PRESENT(), &c.; anything (incl. procedure) but BOZ
109 nullPointerType, // for ASSOCIATED(NULL())
110 exactKind, // a single explicit exactKindValue
111 atomicIntKind, // atomic_int_kind from iso_fortran_env
112 atomicIntOrLogicalKind, // atomic_int_kind or atomic_logical_kind
113 sameAtom, // same type and kind as atom
114)
115
116struct TypePattern {
117 CategorySet categorySet;
118 KindCode kindCode{KindCode::none};
119 int kindValue{0}; // for KindCode::exactKind and greaterOrEqualToKind
120 llvm::raw_ostream &Dump(llvm::raw_ostream &) const;
121};
122
123// Abbreviations for argument and result patterns in the intrinsic prototypes:
124
125// Match specific kinds of intrinsic types
126static constexpr TypePattern DefaultInt{IntType, KindCode::defaultIntegerKind};
127static constexpr TypePattern DefaultReal{RealType, KindCode::defaultRealKind};
128static constexpr TypePattern DefaultComplex{
129 ComplexType, KindCode::defaultRealKind};
130static constexpr TypePattern DefaultChar{CharType, KindCode::defaultCharKind};
131static constexpr TypePattern DefaultLogical{
132 LogicalType, KindCode::defaultLogicalKind};
133static constexpr TypePattern BOZ{IntType, KindCode::typeless};
134static constexpr TypePattern EventType{DerivedType, KindCode::eventType};
135static constexpr TypePattern IeeeFlagType{DerivedType, KindCode::ieeeFlagType};
136static constexpr TypePattern IeeeRoundType{
137 DerivedType, KindCode::ieeeRoundType};
138static constexpr TypePattern TeamType{DerivedType, KindCode::teamType};
139static constexpr TypePattern DoublePrecision{
140 RealType, KindCode::doublePrecision};
141static constexpr TypePattern DoublePrecisionComplex{
142 ComplexType, KindCode::doublePrecision};
143static constexpr TypePattern QuadPrecision{RealType, KindCode::quadPrecision};
144static constexpr TypePattern SubscriptInt{IntType, KindCode::subscript};
145
146// Match any kind of some intrinsic or derived types
147static constexpr TypePattern AnyInt{IntType, KindCode::any};
148static constexpr TypePattern AnyIntOrUnsigned{IntOrUnsignedType, KindCode::any};
149static constexpr TypePattern AnyReal{RealType, KindCode::any};
150static constexpr TypePattern AnyIntOrReal{IntOrRealType, KindCode::any};
151static constexpr TypePattern AnyIntUnsignedOrReal{
152 IntUnsignedOrRealType, KindCode::any};
153static constexpr TypePattern AnyIntOrRealOrChar{
154 IntOrRealOrCharType, KindCode::any};
155static constexpr TypePattern AnyIntOrLogical{IntOrLogicalType, KindCode::any};
156static constexpr TypePattern AnyComplex{ComplexType, KindCode::any};
157static constexpr TypePattern AnyFloating{FloatingType, KindCode::any};
158static constexpr TypePattern AnyNumeric{NumericType, KindCode::any};
159static constexpr TypePattern AnyChar{CharType, KindCode::any};
160static constexpr TypePattern AnyLogical{LogicalType, KindCode::any};
161static constexpr TypePattern AnyRelatable{RelatableType, KindCode::any};
162static constexpr TypePattern AnyIntrinsic{IntrinsicType, KindCode::any};
163static constexpr TypePattern ExtensibleDerived{DerivedType, KindCode::any};
164static constexpr TypePattern AnyData{AnyType, KindCode::any};
165
166// Type is irrelevant, but not BOZ (for PRESENT(), OPTIONAL(), &c.)
167static constexpr TypePattern Addressable{AnyType, KindCode::addressable};
168
169// Match some kind of some intrinsic type(s); all "Same" values must match,
170// even when not in the same category (e.g., SameComplex and SameReal).
171// Can be used to specify a result so long as at least one argument is
172// a "Same".
173static constexpr TypePattern SameInt{IntType, KindCode::same};
174static constexpr TypePattern SameIntOrUnsigned{
175 IntOrUnsignedType, KindCode::same};
176static constexpr TypePattern SameReal{RealType, KindCode::same};
177static constexpr TypePattern SameIntOrReal{IntOrRealType, KindCode::same};
178static constexpr TypePattern SameIntUnsignedOrReal{
179 IntUnsignedOrRealType, KindCode::same};
180static constexpr TypePattern SameComplex{ComplexType, KindCode::same};
181static constexpr TypePattern SameFloating{FloatingType, KindCode::same};
182static constexpr TypePattern SameNumeric{NumericType, KindCode::same};
183static constexpr TypePattern SameChar{CharType, KindCode::same};
184static constexpr TypePattern SameCharNoLen{CharType, KindCode::sameKind};
185static constexpr TypePattern SameLogical{LogicalType, KindCode::same};
186static constexpr TypePattern SameRelatable{RelatableType, KindCode::same};
187static constexpr TypePattern SameIntrinsic{IntrinsicType, KindCode::same};
188static constexpr TypePattern SameType{AnyType, KindCode::same};
189
190// Match some kind of some INTEGER or REAL type(s); when argument types
191// &/or kinds differ, their values are converted as if they were operands to
192// an intrinsic operation like addition. This is a nonstandard but nearly
193// universal extension feature.
194static constexpr TypePattern OperandInt{IntType, KindCode::operand};
195static constexpr TypePattern OperandReal{RealType, KindCode::operand};
196static constexpr TypePattern OperandIntOrReal{IntOrRealType, KindCode::operand};
197
198static constexpr TypePattern OperandUnsigned{UnsignedType, KindCode::operand};
199
200// For ASSOCIATED, the first argument is a typeless pointer
201static constexpr TypePattern AnyPointer{AnyType, KindCode::nullPointerType};
202
203// For DOT_PRODUCT and MATMUL, the result type depends on the arguments
204static constexpr TypePattern ResultLogical{LogicalType, KindCode::likeMultiply};
205static constexpr TypePattern ResultNumeric{NumericType, KindCode::likeMultiply};
206
207// Result types with known category and KIND=
208static constexpr TypePattern KINDInt{IntType, KindCode::effectiveKind};
209static constexpr TypePattern KINDUnsigned{
210 UnsignedType, KindCode::effectiveKind};
211static constexpr TypePattern KINDReal{RealType, KindCode::effectiveKind};
212static constexpr TypePattern KINDComplex{ComplexType, KindCode::effectiveKind};
213static constexpr TypePattern KINDChar{CharType, KindCode::effectiveKind};
214static constexpr TypePattern KINDLogical{LogicalType, KindCode::effectiveKind};
215
216static constexpr TypePattern AtomicInt{IntType, KindCode::atomicIntKind};
217static constexpr TypePattern AtomicIntOrLogical{
218 IntOrLogicalType, KindCode::atomicIntOrLogicalKind};
219static constexpr TypePattern SameAtom{IntOrLogicalType, KindCode::sameAtom};
220
221// The default rank pattern for dummy arguments and function results is
222// "elemental".
223ENUM_CLASS(Rank,
224 elemental, // scalar, or array that conforms with other array arguments
225 elementalOrBOZ, // elemental, or typeless BOZ literal scalar
226 scalar, vector,
227 shape, // INTEGER vector of known length and no negative element
228 matrix,
229 array, // not scalar, rank is known and greater than zero
230 coarray, // rank is known and can be scalar; has nonzero corank
231 atom, // is scalar and has nonzero corank or is coindexed
232 known, // rank is known and can be scalar
233 anyOrAssumedRank, // any rank, or assumed; assumed-type TYPE(*) allowed
234 arrayOrAssumedRank, // rank >= 1 or assumed; assumed-type TYPE(*) allowed
235 conformable, // scalar, or array of same rank & shape as "array" argument
236 reduceOperation, // a pure function with constraints for REDUCE
237 dimReduced, // scalar if no DIM= argument, else rank(array)-1
238 dimRemovedOrScalar, // rank(array)-1 (less DIM) or scalar
239 scalarIfDim, // scalar if DIM= argument is present, else rank one array
240 locReduced, // vector(1:rank) if no DIM= argument, else rank(array)-1
241 rankPlus1, // rank(known)+1
242 shaped, // rank is length of SHAPE vector
243)
244
245ENUM_CLASS(Optionality, required,
246 optional, // unless DIM= for SIZE(assumedSize)
247 missing, // for DIM= cases like FINDLOC
248 repeats, // for MAX/MIN and their several variants
249)
250
251ENUM_CLASS(ArgFlag, none,
252 canBeNullPointer, // actual argument can be NULL(with or without
253 // MOLD=pointer)
254 canBeMoldNull, // actual argument can be NULL(MOLD=any)
255 canBeNullAllocatable, // actual argument can be NULL(MOLD=allocatable)
256 defaultsToSameKind, // for MatchingDefaultKIND
257 defaultsToSizeKind, // for SizeDefaultKIND
258 defaultsToDefaultForResult, // for DefaultingKIND
259 notAssumedSize,
260 onlyConstantInquiry) // e.g., PRECISION(X)
261
262struct IntrinsicDummyArgument {
263 const char *keyword{nullptr};
264 TypePattern typePattern;
265 Rank rank{Rank::elemental};
266 Optionality optionality{Optionality::required};
267 common::Intent intent{common::Intent::In};
268 common::EnumSet<ArgFlag, 32> flags{};
269 llvm::raw_ostream &Dump(llvm::raw_ostream &) const;
270};
271
272// constexpr abbreviations for popular arguments:
273// DefaultingKIND is a KIND= argument whose default value is the appropriate
274// KIND(0), KIND(0.0), KIND(''), &c. value for the function result.
275static constexpr IntrinsicDummyArgument DefaultingKIND{"kind",
276 {IntType, KindCode::kindArg}, Rank::scalar, Optionality::optional,
277 common::Intent::In, {ArgFlag::defaultsToDefaultForResult}};
278// MatchingDefaultKIND is a KIND= argument whose default value is the
279// kind of any "Same" function argument (viz., the one whose kind pattern is
280// "same").
281static constexpr IntrinsicDummyArgument MatchingDefaultKIND{"kind",
282 {IntType, KindCode::kindArg}, Rank::scalar, Optionality::optional,
283 common::Intent::In, {ArgFlag::defaultsToSameKind}};
284// SizeDefaultKind is a KIND= argument whose default value should be
285// the kind of INTEGER used for address calculations, and can be
286// set so with a compiler flag; but the standard mandates the
287// kind of default INTEGER.
288static constexpr IntrinsicDummyArgument SizeDefaultKIND{"kind",
289 {IntType, KindCode::kindArg}, Rank::scalar, Optionality::optional,
290 common::Intent::In, {ArgFlag::defaultsToSizeKind}};
291static constexpr IntrinsicDummyArgument RequiredDIM{"dim",
292 {IntType, KindCode::dimArg}, Rank::scalar, Optionality::required,
293 common::Intent::In};
294static constexpr IntrinsicDummyArgument OptionalDIM{"dim",
295 {IntType, KindCode::dimArg}, Rank::scalar, Optionality::optional,
296 common::Intent::In};
297static constexpr IntrinsicDummyArgument MissingDIM{"dim",
298 {IntType, KindCode::dimArg}, Rank::scalar, Optionality::missing,
299 common::Intent::In};
300static constexpr IntrinsicDummyArgument OptionalMASK{"mask", AnyLogical,
301 Rank::conformable, Optionality::optional, common::Intent::In};
302static constexpr IntrinsicDummyArgument OptionalTEAM{
303 "team", TeamType, Rank::scalar, Optionality::optional, common::Intent::In};
304
305struct IntrinsicInterface {
306 static constexpr int maxArguments{7}; // if not a MAX/MIN(...)
307 const char *name{nullptr};
308 IntrinsicDummyArgument dummy[maxArguments];
309 TypePattern result;
310 Rank rank{Rank::elemental};
311 IntrinsicClass intrinsicClass{IntrinsicClass::elementalFunction};
312 std::optional<SpecificCall> Match(const CallCharacteristics &,
313 const common::IntrinsicTypeDefaultKinds &, ActualArguments &,
314 FoldingContext &context, const semantics::Scope *builtins) const;
315 int CountArguments() const;
316 llvm::raw_ostream &Dump(llvm::raw_ostream &) const;
317};
318
319int IntrinsicInterface::CountArguments() const {
320 int n{0};
321 while (n < maxArguments && dummy[n].keyword) {
322 ++n;
323 }
324 return n;
325}
326
327// GENERIC INTRINSIC FUNCTION INTERFACES
328// Each entry in this table defines a pattern. Some intrinsic
329// functions have more than one such pattern. Besides the name
330// of the intrinsic function, each pattern has specifications for
331// the dummy arguments and for the result of the function.
332// The dummy argument patterns each have a name (these are from the
333// standard, but rarely appear in actual code), a type and kind
334// pattern, allowable ranks, and optionality indicators.
335// Be advised, the default rank pattern is "elemental".
336static const IntrinsicInterface genericIntrinsicFunction[]{
337 {"abs", {{"a", SameIntOrReal}}, SameIntOrReal},
338 {"abs", {{"a", SameComplex}}, SameReal},
339 {"achar", {{"i", AnyInt, Rank::elementalOrBOZ}, DefaultingKIND}, KINDChar},
340 {"acos", {{"x", SameFloating}}, SameFloating},
341 {"acosd", {{"x", SameFloating}}, SameFloating},
342 {"acosh", {{"x", SameFloating}}, SameFloating},
343 {"adjustl", {{"string", SameChar}}, SameChar},
344 {"adjustr", {{"string", SameChar}}, SameChar},
345 {"aimag", {{"z", SameComplex}}, SameReal},
346 {"aint", {{"a", SameReal}, MatchingDefaultKIND}, KINDReal},
347 {"all", {{"mask", SameLogical, Rank::array}, OptionalDIM}, SameLogical,
348 Rank::dimReduced, IntrinsicClass::transformationalFunction},
349 {"allocated", {{"scalar", AnyData, Rank::scalar}}, DefaultLogical,
350 Rank::elemental, IntrinsicClass::inquiryFunction},
351 {"allocated",
352 {{"array", AnyData, Rank::anyOrAssumedRank, Optionality::required,
353 common::Intent::In, {ArgFlag::canBeNullAllocatable}}},
354 DefaultLogical, Rank::elemental, IntrinsicClass::inquiryFunction},
355 {"anint", {{"a", SameReal}, MatchingDefaultKIND}, KINDReal},
356 {"any", {{"mask", SameLogical, Rank::array}, OptionalDIM}, SameLogical,
357 Rank::dimReduced, IntrinsicClass::transformationalFunction},
358 {"asin", {{"x", SameFloating}}, SameFloating},
359 {"asind", {{"x", SameFloating}}, SameFloating},
360 {"asinh", {{"x", SameFloating}}, SameFloating},
361 {"associated",
362 {{"pointer", AnyPointer, Rank::anyOrAssumedRank, Optionality::required,
363 common::Intent::In, {ArgFlag::canBeNullPointer}},
364 {"target", Addressable, Rank::anyOrAssumedRank,
365 Optionality::optional, common::Intent::In,
366 {ArgFlag::canBeNullPointer}}},
367 DefaultLogical, Rank::elemental, IntrinsicClass::inquiryFunction},
368 {"atan", {{"x", SameFloating}}, SameFloating},
369 {"atan", {{"y", OperandReal}, {"x", OperandReal}}, OperandReal},
370 {"atand", {{"x", SameFloating}}, SameFloating},
371 {"atand", {{"y", OperandReal}, {"x", OperandReal}}, OperandReal},
372 {"atan2", {{"y", OperandReal}, {"x", OperandReal}}, OperandReal},
373 {"atan2d", {{"y", OperandReal}, {"x", OperandReal}}, OperandReal},
374 {"atanpi", {{"x", SameFloating}}, SameFloating},
375 {"atanpi", {{"y", OperandReal}, {"x", OperandReal}}, OperandReal},
376 {"atan2pi", {{"y", OperandReal}, {"x", OperandReal}}, OperandReal},
377 {"atanh", {{"x", SameFloating}}, SameFloating},
378 {"bessel_j0", {{"x", SameReal}}, SameReal},
379 {"bessel_j1", {{"x", SameReal}}, SameReal},
380 {"bessel_jn", {{"n", AnyInt}, {"x", SameReal}}, SameReal},
381 {"bessel_jn",
382 {{"n1", AnyInt, Rank::scalar}, {"n2", AnyInt, Rank::scalar},
383 {"x", SameReal, Rank::scalar}},
384 SameReal, Rank::vector, IntrinsicClass::transformationalFunction},
385 {"bessel_y0", {{"x", SameReal}}, SameReal},
386 {"bessel_y1", {{"x", SameReal}}, SameReal},
387 {"bessel_yn", {{"n", AnyInt}, {"x", SameReal}}, SameReal},
388 {"bessel_yn",
389 {{"n1", AnyInt, Rank::scalar}, {"n2", AnyInt, Rank::scalar},
390 {"x", SameReal, Rank::scalar}},
391 SameReal, Rank::vector, IntrinsicClass::transformationalFunction},
392 {"bge",
393 {{"i", AnyIntOrUnsigned, Rank::elementalOrBOZ},
394 {"j", AnyIntOrUnsigned, Rank::elementalOrBOZ}},
395 DefaultLogical},
396 {"bgt",
397 {{"i", AnyIntOrUnsigned, Rank::elementalOrBOZ},
398 {"j", AnyIntOrUnsigned, Rank::elementalOrBOZ}},
399 DefaultLogical},
400 {"bit_size",
401 {{"i", SameIntOrUnsigned, Rank::anyOrAssumedRank, Optionality::required,
402 common::Intent::In,
403 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
404 SameInt, Rank::scalar, IntrinsicClass::inquiryFunction},
405 {"ble",
406 {{"i", AnyIntOrUnsigned, Rank::elementalOrBOZ},
407 {"j", AnyIntOrUnsigned, Rank::elementalOrBOZ}},
408 DefaultLogical},
409 {"blt",
410 {{"i", AnyIntOrUnsigned, Rank::elementalOrBOZ},
411 {"j", AnyIntOrUnsigned, Rank::elementalOrBOZ}},
412 DefaultLogical},
413 {"btest", {{"i", AnyIntOrUnsigned, Rank::elementalOrBOZ}, {"pos", AnyInt}},
414 DefaultLogical},
415 {"ceiling", {{"a", AnyReal}, DefaultingKIND}, KINDInt},
416 {"char", {{"i", AnyInt, Rank::elementalOrBOZ}, DefaultingKIND}, KINDChar},
417 {"chdir", {{"name", DefaultChar, Rank::scalar, Optionality::required}},
418 DefaultInt},
419 {"cmplx", {{"x", AnyComplex}, DefaultingKIND}, KINDComplex},
420 {"cmplx",
421 {{"x", AnyIntUnsignedOrReal, Rank::elementalOrBOZ},
422 {"y", AnyIntUnsignedOrReal, Rank::elementalOrBOZ,
423 Optionality::optional},
424 DefaultingKIND},
425 KINDComplex},
426 {"command_argument_count", {}, DefaultInt, Rank::scalar,
427 IntrinsicClass::transformationalFunction},
428 {"conjg", {{"z", SameComplex}}, SameComplex},
429 {"cos", {{"x", SameFloating}}, SameFloating},
430 {"cosd", {{"x", SameFloating}}, SameFloating},
431 {"cosh", {{"x", SameFloating}}, SameFloating},
432 {"coshape", {{"coarray", AnyData, Rank::coarray}, SizeDefaultKIND}, KINDInt,
433 Rank::vector, IntrinsicClass::inquiryFunction},
434 {"count", {{"mask", AnyLogical, Rank::array}, OptionalDIM, DefaultingKIND},
435 KINDInt, Rank::dimReduced, IntrinsicClass::transformationalFunction},
436 {"cshift",
437 {{"array", SameType, Rank::array},
438 {"shift", AnyInt, Rank::dimRemovedOrScalar}, OptionalDIM},
439 SameType, Rank::conformable, IntrinsicClass::transformationalFunction},
440 {"dble", {{"a", AnyNumeric, Rank::elementalOrBOZ}}, DoublePrecision},
441 {"digits",
442 {{"x", AnyIntUnsignedOrReal, Rank::anyOrAssumedRank,
443 Optionality::required, common::Intent::In,
444 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
445 DefaultInt, Rank::scalar, IntrinsicClass::inquiryFunction},
446 {"dim", {{"x", OperandIntOrReal}, {"y", OperandIntOrReal}},
447 OperandIntOrReal},
448 {"dot_product",
449 {{"vector_a", AnyLogical, Rank::vector},
450 {"vector_b", AnyLogical, Rank::vector}},
451 ResultLogical, Rank::scalar, IntrinsicClass::transformationalFunction},
452 {"dot_product",
453 {{"vector_a", AnyComplex, Rank::vector},
454 {"vector_b", AnyNumeric, Rank::vector}},
455 ResultNumeric, Rank::scalar, // conjugates vector_a
456 IntrinsicClass::transformationalFunction},
457 {"dot_product",
458 {{"vector_a", AnyIntUnsignedOrReal, Rank::vector},
459 {"vector_b", AnyNumeric, Rank::vector}},
460 ResultNumeric, Rank::scalar, IntrinsicClass::transformationalFunction},
461 {"dprod", {{"x", DefaultReal}, {"y", DefaultReal}}, DoublePrecision},
462 {"dshiftl",
463 {{"i", SameIntOrUnsigned},
464 {"j", SameIntOrUnsigned, Rank::elementalOrBOZ}, {"shift", AnyInt}},
465 SameIntOrUnsigned},
466 {"dshiftl", {{"i", BOZ}, {"j", SameIntOrUnsigned}, {"shift", AnyInt}},
467 SameIntOrUnsigned},
468 {"dshiftr",
469 {{"i", SameIntOrUnsigned},
470 {"j", SameIntOrUnsigned, Rank::elementalOrBOZ}, {"shift", AnyInt}},
471 SameIntOrUnsigned},
472 {"dshiftr", {{"i", BOZ}, {"j", SameIntOrUnsigned}, {"shift", AnyInt}},
473 SameIntOrUnsigned},
474 {"eoshift",
475 {{"array", SameType, Rank::array},
476 {"shift", AnyInt, Rank::dimRemovedOrScalar},
477 // BOUNDARY= is not optional for non-intrinsic types
478 {"boundary", SameType, Rank::dimRemovedOrScalar}, OptionalDIM},
479 SameType, Rank::conformable, IntrinsicClass::transformationalFunction},
480 {"eoshift",
481 {{"array", SameIntrinsic, Rank::array},
482 {"shift", AnyInt, Rank::dimRemovedOrScalar},
483 {"boundary", SameIntrinsic, Rank::dimRemovedOrScalar,
484 Optionality::optional},
485 OptionalDIM},
486 SameIntrinsic, Rank::conformable,
487 IntrinsicClass::transformationalFunction},
488 {"epsilon",
489 {{"x", SameReal, Rank::anyOrAssumedRank, Optionality::required,
490 common::Intent::In,
491 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
492 SameReal, Rank::scalar, IntrinsicClass::inquiryFunction},
493 {"erf", {{"x", SameReal}}, SameReal},
494 {"erfc", {{"x", SameReal}}, SameReal},
495 {"erfc_scaled", {{"x", SameReal}}, SameReal},
496 {"etime",
497 {{"values", TypePattern{RealType, KindCode::exactKind, 4}, Rank::vector,
498 Optionality::required, common::Intent::Out}},
499 TypePattern{RealType, KindCode::exactKind, 4}},
500 {"exp", {{"x", SameFloating}}, SameFloating},
501 {"exp", {{"x", SameFloating}}, SameFloating},
502 {"exponent", {{"x", AnyReal}}, DefaultInt},
503 {"exp", {{"x", SameFloating}}, SameFloating},
504 {"extends_type_of",
505 {{"a", ExtensibleDerived, Rank::anyOrAssumedRank, Optionality::required,
506 common::Intent::In, {ArgFlag::canBeMoldNull}},
507 {"mold", ExtensibleDerived, Rank::anyOrAssumedRank,
508 Optionality::required, common::Intent::In,
509 {ArgFlag::canBeMoldNull}}},
510 DefaultLogical, Rank::scalar, IntrinsicClass::inquiryFunction},
511 {"failed_images", {OptionalTEAM, SizeDefaultKIND}, KINDInt, Rank::vector,
512 IntrinsicClass::transformationalFunction},
513 {"findloc",
514 {{"array", AnyNumeric, Rank::array},
515 {"value", AnyNumeric, Rank::scalar}, RequiredDIM, OptionalMASK,
516 SizeDefaultKIND,
517 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
518 KINDInt, Rank::locReduced, IntrinsicClass::transformationalFunction},
519 {"findloc",
520 {{"array", AnyNumeric, Rank::array},
521 {"value", AnyNumeric, Rank::scalar}, MissingDIM, OptionalMASK,
522 SizeDefaultKIND,
523 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
524 KINDInt, Rank::vector, IntrinsicClass::transformationalFunction},
525 {"findloc",
526 {{"array", SameCharNoLen, Rank::array},
527 {"value", SameCharNoLen, Rank::scalar}, RequiredDIM, OptionalMASK,
528 SizeDefaultKIND,
529 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
530 KINDInt, Rank::locReduced, IntrinsicClass::transformationalFunction},
531 {"findloc",
532 {{"array", SameCharNoLen, Rank::array},
533 {"value", SameCharNoLen, Rank::scalar}, MissingDIM, OptionalMASK,
534 SizeDefaultKIND,
535 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
536 KINDInt, Rank::vector, IntrinsicClass::transformationalFunction},
537 {"findloc",
538 {{"array", AnyLogical, Rank::array},
539 {"value", AnyLogical, Rank::scalar}, RequiredDIM, OptionalMASK,
540 SizeDefaultKIND,
541 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
542 KINDInt, Rank::locReduced, IntrinsicClass::transformationalFunction},
543 {"findloc",
544 {{"array", AnyLogical, Rank::array},
545 {"value", AnyLogical, Rank::scalar}, MissingDIM, OptionalMASK,
546 SizeDefaultKIND,
547 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
548 KINDInt, Rank::vector, IntrinsicClass::transformationalFunction},
549 {"floor", {{"a", AnyReal}, DefaultingKIND}, KINDInt},
550 {"fraction", {{"x", SameReal}}, SameReal},
551 {"fseek",
552 {{"unit", AnyInt, Rank::scalar}, {"offset", AnyInt, Rank::scalar},
553 {"whence", AnyInt, Rank::scalar}},
554 DefaultInt, Rank::scalar},
555 {"ftell", {{"unit", AnyInt, Rank::scalar}},
556 TypePattern{IntType, KindCode::exactKind, 8}, Rank::scalar},
557 {"gamma", {{"x", SameReal}}, SameReal},
558 {"get_team", {{"level", DefaultInt, Rank::scalar, Optionality::optional}},
559 TeamType, Rank::scalar, IntrinsicClass::transformationalFunction},
560 {"getcwd",
561 {{"c", DefaultChar, Rank::scalar, Optionality::required,
562 common::Intent::Out}},
563 TypePattern{IntType, KindCode::greaterOrEqualToKind, 4}},
564 {"getgid", {}, DefaultInt},
565 {"getpid", {}, DefaultInt},
566 {"getuid", {}, DefaultInt},
567 {"hostnm",
568 {{"c", DefaultChar, Rank::scalar, Optionality::required,
569 common::Intent::Out}},
570 TypePattern{IntType, KindCode::greaterOrEqualToKind, 4}},
571 {"huge",
572 {{"x", SameIntUnsignedOrReal, Rank::anyOrAssumedRank,
573 Optionality::required, common::Intent::In,
574 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
575 SameIntUnsignedOrReal, Rank::scalar, IntrinsicClass::inquiryFunction},
576 {"hypot", {{"x", OperandReal}, {"y", OperandReal}}, OperandReal},
577 {"iachar", {{"c", AnyChar}, DefaultingKIND}, KINDInt},
578 {"iall",
579 {{"array", SameIntOrUnsigned, Rank::array}, RequiredDIM, OptionalMASK},
580 SameIntOrUnsigned, Rank::dimReduced,
581 IntrinsicClass::transformationalFunction},
582 {"iall",
583 {{"array", SameIntOrUnsigned, Rank::array}, MissingDIM, OptionalMASK},
584 SameIntOrUnsigned, Rank::scalar,
585 IntrinsicClass::transformationalFunction},
586 {"iany",
587 {{"array", SameIntOrUnsigned, Rank::array}, RequiredDIM, OptionalMASK},
588 SameIntOrUnsigned, Rank::dimReduced,
589 IntrinsicClass::transformationalFunction},
590 {"iany",
591 {{"array", SameIntOrUnsigned, Rank::array}, MissingDIM, OptionalMASK},
592 SameIntOrUnsigned, Rank::scalar,
593 IntrinsicClass::transformationalFunction},
594 {"iparity",
595 {{"array", SameIntOrUnsigned, Rank::array}, RequiredDIM, OptionalMASK},
596 SameIntOrUnsigned, Rank::dimReduced,
597 IntrinsicClass::transformationalFunction},
598 {"iparity",
599 {{"array", SameIntOrUnsigned, Rank::array}, MissingDIM, OptionalMASK},
600 SameIntOrUnsigned, Rank::scalar,
601 IntrinsicClass::transformationalFunction},
602 {"iand", {{"i", OperandInt}, {"j", OperandInt, Rank::elementalOrBOZ}},
603 OperandInt},
604 {"iand",
605 {{"i", OperandUnsigned}, {"j", OperandUnsigned, Rank::elementalOrBOZ}},
606 OperandUnsigned},
607 {"iand", {{"i", BOZ}, {"j", SameIntOrUnsigned}}, SameIntOrUnsigned},
608 {"ibclr", {{"i", SameIntOrUnsigned}, {"pos", AnyInt}}, SameIntOrUnsigned},
609 {"ibits", {{"i", SameIntOrUnsigned}, {"pos", AnyInt}, {"len", AnyInt}},
610 SameIntOrUnsigned},
611 {"ibset", {{"i", SameIntOrUnsigned}, {"pos", AnyInt}}, SameIntOrUnsigned},
612 {"ichar", {{"c", AnyChar}, DefaultingKIND}, KINDInt},
613 {"ieor", {{"i", OperandInt}, {"j", OperandInt, Rank::elementalOrBOZ}},
614 OperandInt},
615 {"ieor",
616 {{"i", OperandUnsigned}, {"j", OperandUnsigned, Rank::elementalOrBOZ}},
617 OperandUnsigned},
618 {"ieor", {{"i", BOZ}, {"j", SameIntOrUnsigned}}, SameIntOrUnsigned},
619 {"image_index",
620 {{"coarray", AnyData, Rank::coarray}, {"sub", AnyInt, Rank::vector}},
621 DefaultInt, Rank::scalar, IntrinsicClass::transformationalFunction},
622 {"image_index",
623 {{"coarray", AnyData, Rank::coarray}, {"sub", AnyInt, Rank::vector},
624 {"team", TeamType, Rank::scalar}},
625 DefaultInt, Rank::scalar, IntrinsicClass::transformationalFunction},
626 {"image_index",
627 {{"coarray", AnyData, Rank::coarray}, {"sub", AnyInt, Rank::vector},
628 {"team_number", AnyInt, Rank::scalar}},
629 DefaultInt, Rank::scalar, IntrinsicClass::transformationalFunction},
630 {"image_status", {{"image", SameInt}, OptionalTEAM}, DefaultInt},
631 {"index",
632 {{"string", SameCharNoLen}, {"substring", SameCharNoLen},
633 {"back", AnyLogical, Rank::elemental, Optionality::optional},
634 DefaultingKIND},
635 KINDInt},
636 {"int", {{"a", AnyNumeric, Rank::elementalOrBOZ}, DefaultingKIND}, KINDInt},
637 {"int2", {{"a", AnyNumeric, Rank::elementalOrBOZ}},
638 TypePattern{IntType, KindCode::exactKind, 2}},
639 {"int8", {{"a", AnyNumeric, Rank::elementalOrBOZ}},
640 TypePattern{IntType, KindCode::exactKind, 8}},
641 {"int_ptr_kind", {}, DefaultInt, Rank::scalar},
642 {"ior", {{"i", OperandInt}, {"j", OperandInt, Rank::elementalOrBOZ}},
643 OperandInt},
644 {"ior",
645 {{"i", OperandUnsigned}, {"j", OperandUnsigned, Rank::elementalOrBOZ}},
646 OperandUnsigned},
647 {"ior", {{"i", BOZ}, {"j", SameIntOrUnsigned}}, SameIntOrUnsigned},
648 {"ishft", {{"i", SameIntOrUnsigned}, {"shift", AnyInt}}, SameIntOrUnsigned},
649 {"ishftc",
650 {{"i", SameIntOrUnsigned}, {"shift", AnyInt},
651 {"size", AnyInt, Rank::elemental, Optionality::optional}},
652 SameIntOrUnsigned},
653 {"isnan", {{"a", AnyFloating}}, DefaultLogical},
654 {"is_contiguous", {{"array", Addressable, Rank::anyOrAssumedRank}},
655 DefaultLogical, Rank::elemental, IntrinsicClass::inquiryFunction},
656 {"is_iostat_end", {{"i", AnyInt}}, DefaultLogical},
657 {"is_iostat_eor", {{"i", AnyInt}}, DefaultLogical},
658 {"izext", {{"i", AnyInt}}, TypePattern{IntType, KindCode::exactKind, 2}},
659 {"jzext", {{"i", AnyInt}}, DefaultInt},
660 {"kind",
661 {{"x", AnyIntrinsic, Rank::anyOrAssumedRank, Optionality::required,
662 common::Intent::In,
663 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
664 DefaultInt, Rank::elemental, IntrinsicClass::inquiryFunction},
665 {"lbound",
666 {{"array", AnyData, Rank::anyOrAssumedRank}, RequiredDIM,
667 SizeDefaultKIND},
668 KINDInt, Rank::scalar, IntrinsicClass::inquiryFunction},
669 {"lbound", {{"array", AnyData, Rank::arrayOrAssumedRank}, SizeDefaultKIND},
670 KINDInt, Rank::vector, IntrinsicClass::inquiryFunction},
671 {"lcobound",
672 {{"coarray", AnyData, Rank::coarray}, OptionalDIM, SizeDefaultKIND},
673 KINDInt, Rank::scalarIfDim, IntrinsicClass::inquiryFunction},
674 {"leadz", {{"i", AnyInt}}, DefaultInt},
675 {"len",
676 {{"string", AnyChar, Rank::anyOrAssumedRank, Optionality::required,
677 common::Intent::In, {ArgFlag::canBeMoldNull}},
678 DefaultingKIND},
679 KINDInt, Rank::scalar, IntrinsicClass::inquiryFunction},
680 {"len_trim", {{"string", AnyChar}, DefaultingKIND}, KINDInt},
681 {"lge", {{"string_a", SameCharNoLen}, {"string_b", SameCharNoLen}},
682 DefaultLogical},
683 {"lgt", {{"string_a", SameCharNoLen}, {"string_b", SameCharNoLen}},
684 DefaultLogical},
685 {"lle", {{"string_a", SameCharNoLen}, {"string_b", SameCharNoLen}},
686 DefaultLogical},
687 {"llt", {{"string_a", SameCharNoLen}, {"string_b", SameCharNoLen}},
688 DefaultLogical},
689 {"lnblnk", {{"string", AnyChar}}, DefaultInt},
690 {"loc", {{"x", Addressable, Rank::anyOrAssumedRank}}, SubscriptInt,
691 Rank::scalar},
692 {"log", {{"x", SameFloating}}, SameFloating},
693 {"log10", {{"x", SameReal}}, SameReal},
694 {"logical", {{"l", AnyLogical}, DefaultingKIND}, KINDLogical},
695 {"log_gamma", {{"x", SameReal}}, SameReal},
696 {"malloc", {{"size", AnyInt}}, SubscriptInt},
697 {"matmul",
698 {{"matrix_a", AnyLogical, Rank::vector},
699 {"matrix_b", AnyLogical, Rank::matrix}},
700 ResultLogical, Rank::vector, IntrinsicClass::transformationalFunction},
701 {"matmul",
702 {{"matrix_a", AnyLogical, Rank::matrix},
703 {"matrix_b", AnyLogical, Rank::vector}},
704 ResultLogical, Rank::vector, IntrinsicClass::transformationalFunction},
705 {"matmul",
706 {{"matrix_a", AnyLogical, Rank::matrix},
707 {"matrix_b", AnyLogical, Rank::matrix}},
708 ResultLogical, Rank::matrix, IntrinsicClass::transformationalFunction},
709 {"matmul",
710 {{"matrix_a", AnyNumeric, Rank::vector},
711 {"matrix_b", AnyNumeric, Rank::matrix}},
712 ResultNumeric, Rank::vector, IntrinsicClass::transformationalFunction},
713 {"matmul",
714 {{"matrix_a", AnyNumeric, Rank::matrix},
715 {"matrix_b", AnyNumeric, Rank::vector}},
716 ResultNumeric, Rank::vector, IntrinsicClass::transformationalFunction},
717 {"matmul",
718 {{"matrix_a", AnyNumeric, Rank::matrix},
719 {"matrix_b", AnyNumeric, Rank::matrix}},
720 ResultNumeric, Rank::matrix, IntrinsicClass::transformationalFunction},
721 {"maskl", {{"i", AnyInt}, DefaultingKIND}, KINDInt},
722 {"maskr", {{"i", AnyInt}, DefaultingKIND}, KINDInt},
723 {"max",
724 {{"a1", OperandIntOrReal}, {"a2", OperandIntOrReal},
725 {"a3", OperandIntOrReal, Rank::elemental, Optionality::repeats}},
726 OperandIntOrReal},
727 {"max",
728 {{"a1", OperandUnsigned}, {"a2", OperandUnsigned},
729 {"a3", OperandUnsigned, Rank::elemental, Optionality::repeats}},
730 OperandUnsigned},
731 {"max",
732 {{"a1", SameCharNoLen}, {"a2", SameCharNoLen},
733 {"a3", SameCharNoLen, Rank::elemental, Optionality::repeats}},
734 SameCharNoLen},
735 {"maxexponent",
736 {{"x", AnyReal, Rank::anyOrAssumedRank, Optionality::required,
737 common::Intent::In,
738 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
739 DefaultInt, Rank::scalar, IntrinsicClass::inquiryFunction},
740 {"maxloc",
741 {{"array", AnyRelatable, Rank::array}, RequiredDIM, OptionalMASK,
742 SizeDefaultKIND,
743 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
744 KINDInt, Rank::locReduced, IntrinsicClass::transformationalFunction},
745 {"maxloc",
746 {{"array", AnyRelatable, Rank::array}, MissingDIM, OptionalMASK,
747 SizeDefaultKIND,
748 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
749 KINDInt, Rank::locReduced, IntrinsicClass::transformationalFunction},
750 {"maxval",
751 {{"array", SameRelatable, Rank::array}, RequiredDIM, OptionalMASK},
752 SameRelatable, Rank::dimReduced,
753 IntrinsicClass::transformationalFunction},
754 {"maxval",
755 {{"array", SameRelatable, Rank::array}, MissingDIM, OptionalMASK},
756 SameRelatable, Rank::scalar, IntrinsicClass::transformationalFunction},
757 {"merge",
758 {{"tsource", SameType}, {"fsource", SameType}, {"mask", AnyLogical}},
759 SameType},
760 {"merge_bits",
761 {{"i", SameIntOrUnsigned},
762 {"j", SameIntOrUnsigned, Rank::elementalOrBOZ},
763 {"mask", SameIntOrUnsigned, Rank::elementalOrBOZ}},
764 SameIntOrUnsigned},
765 {"merge_bits",
766 {{"i", BOZ}, {"j", SameIntOrUnsigned},
767 {"mask", SameIntOrUnsigned, Rank::elementalOrBOZ}},
768 SameIntOrUnsigned},
769 {"min",
770 {{"a1", OperandIntOrReal}, {"a2", OperandIntOrReal},
771 {"a3", OperandIntOrReal, Rank::elemental, Optionality::repeats}},
772 OperandIntOrReal},
773 {"min",
774 {{"a1", OperandUnsigned}, {"a2", OperandUnsigned},
775 {"a3", OperandUnsigned, Rank::elemental, Optionality::repeats}},
776 OperandUnsigned},
777 {"min",
778 {{"a1", SameCharNoLen}, {"a2", SameCharNoLen},
779 {"a3", SameCharNoLen, Rank::elemental, Optionality::repeats}},
780 SameCharNoLen},
781 {"minexponent",
782 {{"x", AnyReal, Rank::anyOrAssumedRank, Optionality::required,
783 common::Intent::In,
784 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
785 DefaultInt, Rank::scalar, IntrinsicClass::inquiryFunction},
786 {"minloc",
787 {{"array", AnyRelatable, Rank::array}, RequiredDIM, OptionalMASK,
788 SizeDefaultKIND,
789 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
790 KINDInt, Rank::locReduced, IntrinsicClass::transformationalFunction},
791 {"minloc",
792 {{"array", AnyRelatable, Rank::array}, MissingDIM, OptionalMASK,
793 SizeDefaultKIND,
794 {"back", AnyLogical, Rank::scalar, Optionality::optional}},
795 KINDInt, Rank::locReduced, IntrinsicClass::transformationalFunction},
796 {"minval",
797 {{"array", SameRelatable, Rank::array}, RequiredDIM, OptionalMASK},
798 SameRelatable, Rank::dimReduced,
799 IntrinsicClass::transformationalFunction},
800 {"minval",
801 {{"array", SameRelatable, Rank::array}, MissingDIM, OptionalMASK},
802 SameRelatable, Rank::scalar, IntrinsicClass::transformationalFunction},
803 {"mod", {{"a", OperandIntOrReal}, {"p", OperandIntOrReal}},
804 OperandIntOrReal},
805 {"mod", {{"a", OperandUnsigned}, {"p", OperandUnsigned}}, OperandUnsigned},
806 {"modulo", {{"a", OperandIntOrReal}, {"p", OperandIntOrReal}},
807 OperandIntOrReal},
808 {"modulo", {{"a", OperandUnsigned}, {"p", OperandUnsigned}},
809 OperandUnsigned},
810 {"nearest", {{"x", SameReal}, {"s", AnyReal}}, SameReal},
811 {"new_line",
812 {{"a", SameCharNoLen, Rank::anyOrAssumedRank, Optionality::required,
813 common::Intent::In,
814 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
815 SameCharNoLen, Rank::scalar, IntrinsicClass::inquiryFunction},
816 {"nint", {{"a", AnyReal}, DefaultingKIND}, KINDInt},
817 {"norm2", {{"x", SameReal, Rank::array}, RequiredDIM}, SameReal,
818 Rank::dimReduced, IntrinsicClass::transformationalFunction},
819 {"norm2", {{"x", SameReal, Rank::array}, MissingDIM}, SameReal,
820 Rank::scalar, IntrinsicClass::transformationalFunction},
821 {"not", {{"i", SameIntOrUnsigned}}, SameIntOrUnsigned},
822 // NULL() is a special case handled in Probe() below
823 {"num_images", {}, DefaultInt, Rank::scalar,
824 IntrinsicClass::transformationalFunction},
825 {"num_images", {{"team", TeamType, Rank::scalar}}, DefaultInt, Rank::scalar,
826 IntrinsicClass::transformationalFunction},
827 {"num_images", {{"team_number", AnyInt, Rank::scalar}}, DefaultInt,
828 Rank::scalar, IntrinsicClass::transformationalFunction},
829 {"out_of_range",
830 {{"x", AnyIntOrReal}, {"mold", AnyIntOrReal, Rank::scalar}},
831 DefaultLogical},
832 {"out_of_range",
833 {{"x", AnyReal}, {"mold", AnyInt, Rank::scalar},
834 {"round", AnyLogical, Rank::scalar, Optionality::optional}},
835 DefaultLogical},
836 {"out_of_range", {{"x", AnyReal}, {"mold", AnyReal}}, DefaultLogical},
837 {"pack",
838 {{"array", SameType, Rank::array},
839 {"mask", AnyLogical, Rank::conformable},
840 {"vector", SameType, Rank::vector, Optionality::optional}},
841 SameType, Rank::vector, IntrinsicClass::transformationalFunction},
842 {"parity", {{"mask", SameLogical, Rank::array}, OptionalDIM}, SameLogical,
843 Rank::dimReduced, IntrinsicClass::transformationalFunction},
844 {"popcnt", {{"i", AnyInt}}, DefaultInt},
845 {"poppar", {{"i", AnyInt}}, DefaultInt},
846 {"product",
847 {{"array", SameNumeric, Rank::array}, RequiredDIM, OptionalMASK},
848 SameNumeric, Rank::dimReduced,
849 IntrinsicClass::transformationalFunction},
850 {"product", {{"array", SameNumeric, Rank::array}, MissingDIM, OptionalMASK},
851 SameNumeric, Rank::scalar, IntrinsicClass::transformationalFunction},
852 {"precision",
853 {{"x", AnyFloating, Rank::anyOrAssumedRank, Optionality::required,
854 common::Intent::In,
855 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
856 DefaultInt, Rank::scalar, IntrinsicClass::inquiryFunction},
857 {"present", {{"a", Addressable, Rank::anyOrAssumedRank}}, DefaultLogical,
858 Rank::scalar, IntrinsicClass::inquiryFunction},
859 {"putenv", {{"str", DefaultChar, Rank::scalar}}, DefaultInt, Rank::scalar,
860 IntrinsicClass::transformationalFunction},
861 {"radix",
862 {{"x", AnyIntOrReal, Rank::anyOrAssumedRank, Optionality::required,
863 common::Intent::In,
864 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
865 DefaultInt, Rank::scalar, IntrinsicClass::inquiryFunction},
866 {"range",
867 {{"x", AnyNumeric, Rank::anyOrAssumedRank, Optionality::required,
868 common::Intent::In,
869 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
870 DefaultInt, Rank::scalar, IntrinsicClass::inquiryFunction},
871 {"rank",
872 {{"a", AnyData, Rank::anyOrAssumedRank, Optionality::required,
873 common::Intent::In,
874 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
875 DefaultInt, Rank::scalar, IntrinsicClass::inquiryFunction},
876 {"real", {{"a", SameComplex, Rank::elemental}},
877 SameReal}, // 16.9.160(4)(ii)
878 {"real", {{"a", AnyNumeric, Rank::elementalOrBOZ}, DefaultingKIND},
879 KINDReal},
880 {"reduce",
881 {{"array", SameType, Rank::array},
882 {"operation", SameType, Rank::reduceOperation}, RequiredDIM,
883 OptionalMASK,
884 {"identity", SameType, Rank::scalar, Optionality::optional},
885 {"ordered", AnyLogical, Rank::scalar, Optionality::optional}},
886 SameType, Rank::dimReduced, IntrinsicClass::transformationalFunction},
887 {"reduce",
888 {{"array", SameType, Rank::array},
889 {"operation", SameType, Rank::reduceOperation}, MissingDIM,
890 OptionalMASK,
891 {"identity", SameType, Rank::scalar, Optionality::optional},
892 {"ordered", AnyLogical, Rank::scalar, Optionality::optional}},
893 SameType, Rank::scalar, IntrinsicClass::transformationalFunction},
894 {"rename",
895 {{"path1", DefaultChar, Rank::scalar},
896 {"path2", DefaultChar, Rank::scalar}},
897 DefaultInt, Rank::scalar},
898 {"repeat",
899 {{"string", SameCharNoLen, Rank::scalar},
900 {"ncopies", AnyInt, Rank::scalar}},
901 SameCharNoLen, Rank::scalar, IntrinsicClass::transformationalFunction},
902 {"reshape",
903 {{"source", SameType, Rank::array}, {"shape", AnyInt, Rank::shape},
904 {"pad", SameType, Rank::array, Optionality::optional},
905 {"order", AnyInt, Rank::vector, Optionality::optional}},
906 SameType, Rank::shaped, IntrinsicClass::transformationalFunction},
907 {"rrspacing", {{"x", SameReal}}, SameReal},
908 {"same_type_as",
909 {{"a", ExtensibleDerived, Rank::anyOrAssumedRank, Optionality::required,
910 common::Intent::In, {ArgFlag::canBeMoldNull}},
911 {"b", ExtensibleDerived, Rank::anyOrAssumedRank,
912 Optionality::required, common::Intent::In,
913 {ArgFlag::canBeMoldNull}}},
914 DefaultLogical, Rank::scalar, IntrinsicClass::inquiryFunction},
915 {"scale", {{"x", SameReal}, {"i", AnyInt}}, SameReal}, // == IEEE_SCALB()
916 {"scan",
917 {{"string", SameCharNoLen}, {"set", SameCharNoLen},
918 {"back", AnyLogical, Rank::elemental, Optionality::optional},
919 DefaultingKIND},
920 KINDInt},
921 {"second", {}, DefaultReal, Rank::scalar},
922 {"selected_char_kind", {{"name", DefaultChar, Rank::scalar}}, DefaultInt,
923 Rank::scalar, IntrinsicClass::transformationalFunction},
924 {"selected_int_kind", {{"r", AnyInt, Rank::scalar}}, DefaultInt,
925 Rank::scalar, IntrinsicClass::transformationalFunction},
926 {"selected_logical_kind", {{"bits", AnyInt, Rank::scalar}}, DefaultInt,
927 Rank::scalar, IntrinsicClass::transformationalFunction},
928 {"selected_real_kind",
929 {{"p", AnyInt, Rank::scalar},
930 {"r", AnyInt, Rank::scalar, Optionality::optional},
931 {"radix", AnyInt, Rank::scalar, Optionality::optional}},
932 DefaultInt, Rank::scalar, IntrinsicClass::transformationalFunction},
933 {"selected_real_kind",
934 {{"p", AnyInt, Rank::scalar, Optionality::optional},
935 {"r", AnyInt, Rank::scalar},
936 {"radix", AnyInt, Rank::scalar, Optionality::optional}},
937 DefaultInt, Rank::scalar, IntrinsicClass::transformationalFunction},
938 {"selected_real_kind",
939 {{"p", AnyInt, Rank::scalar, Optionality::optional},
940 {"r", AnyInt, Rank::scalar, Optionality::optional},
941 {"radix", AnyInt, Rank::scalar}},
942 DefaultInt, Rank::scalar, IntrinsicClass::transformationalFunction},
943 {"selected_unsigned_kind", {{"r", AnyInt, Rank::scalar}}, DefaultInt,
944 Rank::scalar, IntrinsicClass::transformationalFunction},
945 {"set_exponent", {{"x", SameReal}, {"i", AnyInt}}, SameReal},
946 {"shape", {{"source", AnyData, Rank::anyOrAssumedRank}, SizeDefaultKIND},
947 KINDInt, Rank::vector, IntrinsicClass::inquiryFunction},
948 {"shifta", {{"i", SameIntOrUnsigned}, {"shift", AnyInt}},
949 SameIntOrUnsigned},
950 {"shiftl", {{"i", SameIntOrUnsigned}, {"shift", AnyInt}},
951 SameIntOrUnsigned},
952 {"shiftr", {{"i", SameIntOrUnsigned}, {"shift", AnyInt}},
953 SameIntOrUnsigned},
954 {"sign", {{"a", SameInt}, {"b", AnyInt}}, SameInt},
955 {"sign", {{"a", SameReal}, {"b", AnyReal}}, SameReal},
956 {"sin", {{"x", SameFloating}}, SameFloating},
957 {"sind", {{"x", SameFloating}}, SameFloating},
958 {"sinh", {{"x", SameFloating}}, SameFloating},
959 {"size",
960 {{"array", AnyData, Rank::arrayOrAssumedRank},
961 OptionalDIM, // unless array is assumed-size
962 SizeDefaultKIND},
963 KINDInt, Rank::scalar, IntrinsicClass::inquiryFunction},
964 {"sizeof", {{"x", AnyData, Rank::anyOrAssumedRank}}, SubscriptInt,
965 Rank::scalar, IntrinsicClass::inquiryFunction},
966 {"spacing", {{"x", SameReal}}, SameReal},
967 {"spread",
968 {{"source", SameType, Rank::known, Optionality::required,
969 common::Intent::In, {ArgFlag::notAssumedSize}},
970 RequiredDIM, {"ncopies", AnyInt, Rank::scalar}},
971 SameType, Rank::rankPlus1, IntrinsicClass::transformationalFunction},
972 {"sqrt", {{"x", SameFloating}}, SameFloating},
973 {"stopped_images", {OptionalTEAM, SizeDefaultKIND}, KINDInt, Rank::vector,
974 IntrinsicClass::transformationalFunction},
975 {"storage_size",
976 {{"a", AnyData, Rank::anyOrAssumedRank, Optionality::required,
977 common::Intent::In, {ArgFlag::canBeMoldNull}},
978 SizeDefaultKIND},
979 KINDInt, Rank::scalar, IntrinsicClass::inquiryFunction},
980 {"sum", {{"array", SameNumeric, Rank::array}, RequiredDIM, OptionalMASK},
981 SameNumeric, Rank::dimReduced,
982 IntrinsicClass::transformationalFunction},
983 {"sum", {{"array", SameNumeric, Rank::array}, MissingDIM, OptionalMASK},
984 SameNumeric, Rank::scalar, IntrinsicClass::transformationalFunction},
985 {"system", {{"command", DefaultChar, Rank::scalar}}, DefaultInt,
986 Rank::scalar},
987 {"tan", {{"x", SameFloating}}, SameFloating},
988 {"tand", {{"x", SameFloating}}, SameFloating},
989 {"tanh", {{"x", SameFloating}}, SameFloating},
990 {"team_number", {OptionalTEAM}, DefaultInt, Rank::scalar,
991 IntrinsicClass::transformationalFunction},
992 {"this_image",
993 {{"coarray", AnyData, Rank::coarray}, RequiredDIM, OptionalTEAM},
994 DefaultInt, Rank::scalar, IntrinsicClass::transformationalFunction},
995 {"this_image", {{"coarray", AnyData, Rank::coarray}, OptionalTEAM},
996 DefaultInt, Rank::vector, IntrinsicClass::transformationalFunction},
997 {"this_image", {OptionalTEAM}, DefaultInt, Rank::scalar,
998 IntrinsicClass::transformationalFunction},
999 {"time", {}, TypePattern{IntType, KindCode::exactKind, 8}, Rank::scalar,
1000 IntrinsicClass::transformationalFunction},
1001 {"tiny",
1002 {{"x", SameReal, Rank::anyOrAssumedRank, Optionality::required,
1003 common::Intent::In,
1004 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1005 SameReal, Rank::scalar, IntrinsicClass::inquiryFunction},
1006 {"trailz", {{"i", AnyInt}}, DefaultInt},
1007 {"transfer",
1008 {{"source", AnyData, Rank::known}, {"mold", SameType, Rank::scalar}},
1009 SameType, Rank::scalar, IntrinsicClass::transformationalFunction},
1010 {"transfer",
1011 {{"source", AnyData, Rank::known}, {"mold", SameType, Rank::array}},
1012 SameType, Rank::vector, IntrinsicClass::transformationalFunction},
1013 {"transfer",
1014 {{"source", AnyData, Rank::anyOrAssumedRank},
1015 {"mold", SameType, Rank::anyOrAssumedRank},
1016 {"size", AnyInt, Rank::scalar}},
1017 SameType, Rank::vector, IntrinsicClass::transformationalFunction},
1018 {"transpose", {{"matrix", SameType, Rank::matrix}}, SameType, Rank::matrix,
1019 IntrinsicClass::transformationalFunction},
1020 {"trim", {{"string", SameCharNoLen, Rank::scalar}}, SameCharNoLen,
1021 Rank::scalar, IntrinsicClass::transformationalFunction},
1022 {"ubound",
1023 {{"array", AnyData, Rank::anyOrAssumedRank}, RequiredDIM,
1024 SizeDefaultKIND},
1025 KINDInt, Rank::scalar, IntrinsicClass::inquiryFunction},
1026 {"ubound", {{"array", AnyData, Rank::arrayOrAssumedRank}, SizeDefaultKIND},
1027 KINDInt, Rank::vector, IntrinsicClass::inquiryFunction},
1028 {"ucobound",
1029 {{"coarray", AnyData, Rank::coarray}, OptionalDIM, SizeDefaultKIND},
1030 KINDInt, Rank::scalarIfDim, IntrinsicClass::inquiryFunction},
1031 {"uint", {{"a", AnyNumeric, Rank::elementalOrBOZ}, DefaultingKIND},
1032 KINDUnsigned},
1033 {"umaskl", {{"i", AnyInt}, DefaultingKIND}, KINDUnsigned},
1034 {"umaskr", {{"i", AnyInt}, DefaultingKIND}, KINDUnsigned},
1035 {"unlink", {{"path", DefaultChar, Rank::scalar}}, DefaultInt, Rank::scalar,
1036 IntrinsicClass::transformationalFunction},
1037 {"unpack",
1038 {{"vector", SameType, Rank::vector}, {"mask", AnyLogical, Rank::array},
1039 {"field", SameType, Rank::conformable}},
1040 SameType, Rank::conformable, IntrinsicClass::transformationalFunction},
1041 {"verify",
1042 {{"string", SameCharNoLen}, {"set", SameCharNoLen},
1043 {"back", AnyLogical, Rank::elemental, Optionality::optional},
1044 DefaultingKIND},
1045 KINDInt},
1046 {"__builtin_compiler_options", {}, DefaultChar},
1047 {"__builtin_compiler_version", {}, DefaultChar},
1048 {"__builtin_fma", {{"f1", SameReal}, {"f2", SameReal}, {"f3", SameReal}},
1049 SameReal},
1050 {"__builtin_ieee_int",
1051 {{"a", AnyFloating}, {"round", IeeeRoundType}, DefaultingKIND},
1052 KINDInt},
1053 {"__builtin_ieee_is_nan", {{"a", AnyFloating}}, DefaultLogical},
1054 {"__builtin_ieee_is_negative", {{"a", AnyFloating}}, DefaultLogical},
1055 {"__builtin_ieee_is_normal", {{"a", AnyFloating}}, DefaultLogical},
1056 {"__builtin_ieee_next_after", {{"x", SameReal}, {"y", AnyReal}}, SameReal},
1057 {"__builtin_ieee_next_down", {{"x", SameReal}}, SameReal},
1058 {"__builtin_ieee_next_up", {{"x", SameReal}}, SameReal},
1059 {"__builtin_ieee_real", {{"a", AnyIntOrReal}, DefaultingKIND}, KINDReal},
1060 {"__builtin_ieee_support_datatype",
1061 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1062 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1063 DefaultLogical},
1064 {"__builtin_ieee_support_denormal",
1065 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1066 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1067 DefaultLogical},
1068 {"__builtin_ieee_support_divide",
1069 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1070 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1071 DefaultLogical},
1072 {"__builtin_ieee_support_flag",
1073 {{"flag", IeeeFlagType, Rank::scalar},
1074 {"x", AnyReal, Rank::known, Optionality::optional,
1075 common::Intent::In,
1076 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1077 DefaultLogical},
1078 {"__builtin_ieee_support_halting", {{"flag", IeeeFlagType, Rank::scalar}},
1079 DefaultLogical},
1080 {"__builtin_ieee_support_inf",
1081 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1082 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1083 DefaultLogical},
1084 {"__builtin_ieee_support_io",
1085 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1086 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1087 DefaultLogical},
1088 {"__builtin_ieee_support_nan",
1089 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1090 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1091 DefaultLogical},
1092 {"__builtin_ieee_support_rounding",
1093 {{"round_value", IeeeRoundType, Rank::scalar},
1094 {"x", AnyReal, Rank::known, Optionality::optional,
1095 common::Intent::In,
1096 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1097 DefaultLogical},
1098 {"__builtin_ieee_support_sqrt",
1099 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1100 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1101 DefaultLogical},
1102 {"__builtin_ieee_support_standard",
1103 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1104 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1105 DefaultLogical},
1106 {"__builtin_ieee_support_subnormal",
1107 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1108 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1109 DefaultLogical},
1110 {"__builtin_ieee_support_underflow_control",
1111 {{"x", AnyReal, Rank::known, Optionality::optional, common::Intent::In,
1112 {ArgFlag::canBeMoldNull, ArgFlag::onlyConstantInquiry}}},
1113 DefaultLogical},
1114 {"__builtin_numeric_storage_size", {}, DefaultInt},
1115};
1116
1117// TODO: Non-standard intrinsic functions
1118// SHIFT,
1119// COMPL, EQV, NEQV, INT8, JINT, JNINT, KNINT,
1120// QCMPLX, QEXT, QFLOAT, QREAL, DNUM,
1121// INUM, JNUM, KNUM, QNUM, RNUM, RAN, RANF, ILEN,
1122// MCLOCK, SECNDS, COTAN, IBCHNG, ISHA, ISHC, ISHL, IXOR
1123// IARG, IARGC, NARGS, NUMARG, BADDRESS, IADDR, CACHESIZE,
1124// EOF, FP_CLASS, INT_PTR_KIND, MALLOC
1125// probably more (these are PGI + Intel, possibly incomplete)
1126// TODO: Optionally warn on use of non-standard intrinsics:
1127// LOC, probably others
1128// TODO: Optionally warn on operand promotion extension
1129
1130// Aliases for a few generic procedures for legacy compatibility and builtins.
1131static const std::pair<const char *, const char *> genericAlias[]{
1132 {"and", "iand"},
1133 {"getenv", "get_environment_variable"},
1134 {"fseek64", "fseek"},
1135 {"fseeko64", "fseek"}, // SUN
1136 {"fseeki8", "fseek"}, // Intel
1137 {"ftell64", "ftell"},
1138 {"ftello64", "ftell"}, // SUN
1139 {"ftelli8", "ftell"}, // Intel
1140 {"imag", "aimag"},
1141 {"lshift", "shiftl"},
1142 {"or", "ior"},
1143 {"rshift", "shifta"},
1144 {"unsigned", "uint"}, // Sun vs gfortran names
1145 {"xor", "ieor"},
1146 {"__builtin_ieee_selected_real_kind", "selected_real_kind"},
1147};
1148
1149// The following table contains the intrinsic functions listed in
1150// Tables 16.2 and 16.3 in Fortran 2018. The "unrestricted" functions
1151// in Table 16.2 can be used as actual arguments, PROCEDURE() interfaces,
1152// and procedure pointer targets.
1153// Note that the restricted conversion functions dcmplx, dreal, float, idint,
1154// ifix, and sngl are extended to accept any argument kind because this is a
1155// common Fortran compilers behavior, and as far as we can tell, is safe and
1156// useful.
1157struct SpecificIntrinsicInterface : public IntrinsicInterface {
1158 const char *generic{nullptr};
1159 bool isRestrictedSpecific{false};
1160 // Exact actual/dummy type matching is required by default for specific
1161 // intrinsics. If useGenericAndForceResultType is set, then the probing will
1162 // also attempt to use the related generic intrinsic and to convert the result
1163 // to the specific intrinsic result type if needed. This also prevents
1164 // using the generic name so that folding can insert the conversion on the
1165 // result and not the arguments.
1166 //
1167 // This is not enabled on all specific intrinsics because an alternative
1168 // is to convert the actual arguments to the required dummy types and this is
1169 // not numerically equivalent.
1170 // e.g. IABS(INT(i, 4)) not equiv to INT(ABS(i), 4).
1171 // This is allowed for restricted min/max specific functions because
1172 // the expected behavior is clear from their definitions. A warning is though
1173 // always emitted because other compilers' behavior is not ubiquitous here and
1174 // the results in case of conversion overflow might not be equivalent.
1175 // e.g for MIN0: INT(MIN(2147483647_8, 2*2147483647_8), 4) = 2147483647_4
1176 // but: MIN(INT(2147483647_8, 4), INT(2*2147483647_8, 4)) = -2_4
1177 // xlf and ifort return the first, and pgfortran the later. f18 will return
1178 // the first because this matches more closely the MIN0 definition in
1179 // Fortran 2018 table 16.3 (although it is still an extension to allow
1180 // non default integer argument in MIN0).
1181 bool useGenericAndForceResultType{false};
1182};
1183
1184static const SpecificIntrinsicInterface specificIntrinsicFunction[]{
1185 {{"abs", {{"a", DefaultReal}}, DefaultReal}},
1186 {{"acos", {{"x", DefaultReal}}, DefaultReal}},
1187 {{"aimag", {{"z", DefaultComplex}}, DefaultReal}},
1188 {{"aint", {{"a", DefaultReal}}, DefaultReal}},
1189 {{"alog", {{"x", DefaultReal}}, DefaultReal}, "log"},
1190 {{"alog10", {{"x", DefaultReal}}, DefaultReal}, "log10"},
1191 {{"amax0",
1192 {{"a1", DefaultInt}, {"a2", DefaultInt},
1193 {"a3", DefaultInt, Rank::elemental, Optionality::repeats}},
1194 DefaultReal},
1195 "max", true, true},
1196 {{"amax1",
1197 {{"a1", DefaultReal}, {"a2", DefaultReal},
1198 {"a3", DefaultReal, Rank::elemental, Optionality::repeats}},
1199 DefaultReal},
1200 "max", true, true},
1201 {{"amin0",
1202 {{"a1", DefaultInt}, {"a2", DefaultInt},
1203 {"a3", DefaultInt, Rank::elemental, Optionality::repeats}},
1204 DefaultReal},
1205 "min", true, true},
1206 {{"amin1",
1207 {{"a1", DefaultReal}, {"a2", DefaultReal},
1208 {"a3", DefaultReal, Rank::elemental, Optionality::repeats}},
1209 DefaultReal},
1210 "min", true, true},
1211 {{"amod", {{"a", DefaultReal}, {"p", DefaultReal}}, DefaultReal}, "mod"},
1212 {{"anint", {{"a", DefaultReal}}, DefaultReal}},
1213 {{"asin", {{"x", DefaultReal}}, DefaultReal}},
1214 {{"atan", {{"x", DefaultReal}}, DefaultReal}},
1215 {{"atan2", {{"y", DefaultReal}, {"x", DefaultReal}}, DefaultReal}},
1216 {{"babs", {{"a", TypePattern{IntType, KindCode::exactKind, 1}}},
1217 TypePattern{IntType, KindCode::exactKind, 1}},
1218 "abs"},
1219 {{"cabs", {{"a", DefaultComplex}}, DefaultReal}, "abs"},
1220 {{"ccos", {{"x", DefaultComplex}}, DefaultComplex}, "cos"},
1221 {{"cdabs", {{"a", DoublePrecisionComplex}}, DoublePrecision}, "abs"},
1222 {{"cdcos", {{"x", DoublePrecisionComplex}}, DoublePrecisionComplex}, "cos"},
1223 {{"cdexp", {{"x", DoublePrecisionComplex}}, DoublePrecisionComplex}, "exp"},
1224 {{"cdlog", {{"x", DoublePrecisionComplex}}, DoublePrecisionComplex}, "log"},
1225 {{"cdsin", {{"x", DoublePrecisionComplex}}, DoublePrecisionComplex}, "sin"},
1226 {{"cdsqrt", {{"x", DoublePrecisionComplex}}, DoublePrecisionComplex},
1227 "sqrt"},
1228 {{"cexp", {{"x", DefaultComplex}}, DefaultComplex}, "exp"},
1229 {{"clog", {{"x", DefaultComplex}}, DefaultComplex}, "log"},
1230 {{"conjg", {{"z", DefaultComplex}}, DefaultComplex}},
1231 {{"cos", {{"x", DefaultReal}}, DefaultReal}},
1232 {{"cosh", {{"x", DefaultReal}}, DefaultReal}},
1233 {{"csin", {{"x", DefaultComplex}}, DefaultComplex}, "sin"},
1234 {{"csqrt", {{"x", DefaultComplex}}, DefaultComplex}, "sqrt"},
1235 {{"ctan", {{"x", DefaultComplex}}, DefaultComplex}, "tan"},
1236 {{"dabs", {{"a", DoublePrecision}}, DoublePrecision}, "abs"},
1237 {{"dacos", {{"x", DoublePrecision}}, DoublePrecision}, "acos"},
1238 {{"dasin", {{"x", DoublePrecision}}, DoublePrecision}, "asin"},
1239 {{"datan", {{"x", DoublePrecision}}, DoublePrecision}, "atan"},
1240 {{"datan2", {{"y", DoublePrecision}, {"x", DoublePrecision}},
1241 DoublePrecision},
1242 "atan2"},
1243 {{"dcmplx", {{"x", AnyComplex}}, DoublePrecisionComplex}, "cmplx", true},
1244 {{"dcmplx",
1245 {{"x", AnyIntOrReal, Rank::elementalOrBOZ},
1246 {"y", AnyIntOrReal, Rank::elementalOrBOZ, Optionality::optional}},
1247 DoublePrecisionComplex},
1248 "cmplx", true},
1249 {{"dconjg", {{"z", DoublePrecisionComplex}}, DoublePrecisionComplex},
1250 "conjg"},
1251 {{"dcos", {{"x", DoublePrecision}}, DoublePrecision}, "cos"},
1252 {{"dcosh", {{"x", DoublePrecision}}, DoublePrecision}, "cosh"},
1253 {{"ddim", {{"x", DoublePrecision}, {"y", DoublePrecision}},
1254 DoublePrecision},
1255 "dim"},
1256 {{"derf", {{"x", DoublePrecision}}, DoublePrecision}, "erf"},
1257 {{"derfc", {{"x", DoublePrecision}}, DoublePrecision}, "erfc"},
1258 {{"derfc_scaled", {{"x", DoublePrecision}}, DoublePrecision},
1259 "erfc_scaled"},
1260 {{"dexp", {{"x", DoublePrecision}}, DoublePrecision}, "exp"},
1261 {{"dfloat", {{"a", AnyInt}}, DoublePrecision}, "real", true},
1262 {{"dim", {{"x", DefaultReal}, {"y", DefaultReal}}, DefaultReal}},
1263 {{"dimag", {{"z", DoublePrecisionComplex}}, DoublePrecision}, "aimag"},
1264 {{"dint", {{"a", DoublePrecision}}, DoublePrecision}, "aint"},
1265 {{"dlog", {{"x", DoublePrecision}}, DoublePrecision}, "log"},
1266 {{"dlog10", {{"x", DoublePrecision}}, DoublePrecision}, "log10"},
1267 {{"dmax1",
1268 {{"a1", DoublePrecision}, {"a2", DoublePrecision},
1269 {"a3", DoublePrecision, Rank::elemental, Optionality::repeats}},
1270 DoublePrecision},
1271 "max", true, true},
1272 {{"dmin1",
1273 {{"a1", DoublePrecision}, {"a2", DoublePrecision},
1274 {"a3", DoublePrecision, Rank::elemental, Optionality::repeats}},
1275 DoublePrecision},
1276 "min", true, true},
1277 {{"dmod", {{"a", DoublePrecision}, {"p", DoublePrecision}},
1278 DoublePrecision},
1279 "mod"},
1280 {{"dnint", {{"a", DoublePrecision}}, DoublePrecision}, "anint"},
1281 {{"dprod", {{"x", DefaultReal}, {"y", DefaultReal}}, DoublePrecision}},
1282 {{"dreal", {{"a", AnyComplex}}, DoublePrecision}, "real", true},
1283 {{"dsign", {{"a", DoublePrecision}, {"b", DoublePrecision}},
1284 DoublePrecision},
1285 "sign"},
1286 {{"dsin", {{"x", DoublePrecision}}, DoublePrecision}, "sin"},
1287 {{"dsinh", {{"x", DoublePrecision}}, DoublePrecision}, "sinh"},
1288 {{"dsqrt", {{"x", DoublePrecision}}, DoublePrecision}, "sqrt"},
1289 {{"dtan", {{"x", DoublePrecision}}, DoublePrecision}, "tan"},
1290 {{"dtanh", {{"x", DoublePrecision}}, DoublePrecision}, "tanh"},
1291 {{"exp", {{"x", DefaultReal}}, DefaultReal}},
1292 {{"float", {{"a", AnyInt}}, DefaultReal}, "real", true},
1293 {{"iabs", {{"a", DefaultInt}}, DefaultInt}, "abs"},
1294 {{"idim", {{"x", DefaultInt}, {"y", DefaultInt}}, DefaultInt}, "dim"},
1295 {{"idint", {{"a", AnyReal}}, DefaultInt}, "int", true},
1296 {{"idnint", {{"a", DoublePrecision}}, DefaultInt}, "nint"},
1297 {{"ifix", {{"a", AnyReal}}, DefaultInt}, "int", true},
1298 {{"iiabs", {{"a", TypePattern{IntType, KindCode::exactKind, 2}}},
1299 TypePattern{IntType, KindCode::exactKind, 2}},
1300 "abs"},
1301 // The definition of the unrestricted specific intrinsic function INDEX
1302 // in F'77 and F'90 has only two arguments; later standards omit the
1303 // argument information for all unrestricted specific intrinsic
1304 // procedures. No compiler supports an implementation that allows
1305 // INDEX with BACK= to work when associated as an actual procedure or
1306 // procedure pointer target.
1307 {{"index", {{"string", DefaultChar}, {"substring", DefaultChar}},
1308 DefaultInt}},
1309 {{"isign", {{"a", DefaultInt}, {"b", DefaultInt}}, DefaultInt}, "sign"},
1310 {{"jiabs", {{"a", TypePattern{IntType, KindCode::exactKind, 4}}},
1311 TypePattern{IntType, KindCode::exactKind, 4}},
1312 "abs"},
1313 {{"kiabs", {{"a", TypePattern{IntType, KindCode::exactKind, 8}}},
1314 TypePattern{IntType, KindCode::exactKind, 8}},
1315 "abs"},
1316 {{"kidnnt", {{"a", DoublePrecision}},
1317 TypePattern{IntType, KindCode::exactKind, 8}},
1318 "nint"},
1319 {{"knint", {{"a", DefaultReal}},
1320 TypePattern{IntType, KindCode::exactKind, 8}},
1321 "nint"},
1322 {{"len", {{"string", DefaultChar, Rank::anyOrAssumedRank}}, DefaultInt,
1323 Rank::scalar, IntrinsicClass::inquiryFunction}},
1324 {{"lge", {{"string_a", DefaultChar}, {"string_b", DefaultChar}},
1325 DefaultLogical},
1326 "lge", true},
1327 {{"lgt", {{"string_a", DefaultChar}, {"string_b", DefaultChar}},
1328 DefaultLogical},
1329 "lgt", true},
1330 {{"lle", {{"string_a", DefaultChar}, {"string_b", DefaultChar}},
1331 DefaultLogical},
1332 "lle", true},
1333 {{"llt", {{"string_a", DefaultChar}, {"string_b", DefaultChar}},
1334 DefaultLogical},
1335 "llt", true},
1336 {{"log", {{"x", DefaultReal}}, DefaultReal}},
1337 {{"log10", {{"x", DefaultReal}}, DefaultReal}},
1338 {{"max0",
1339 {{"a1", DefaultInt}, {"a2", DefaultInt},
1340 {"a3", DefaultInt, Rank::elemental, Optionality::repeats}},
1341 DefaultInt},
1342 "max", true, true},
1343 {{"max1",
1344 {{"a1", DefaultReal}, {"a2", DefaultReal},
1345 {"a3", DefaultReal, Rank::elemental, Optionality::repeats}},
1346 DefaultInt},
1347 "max", true, true},
1348 {{"min0",
1349 {{"a1", DefaultInt}, {"a2", DefaultInt},
1350 {"a3", DefaultInt, Rank::elemental, Optionality::repeats}},
1351 DefaultInt},
1352 "min", true, true},
1353 {{"min1",
1354 {{"a1", DefaultReal}, {"a2", DefaultReal},
1355 {"a3", DefaultReal, Rank::elemental, Optionality::repeats}},
1356 DefaultInt},
1357 "min", true, true},
1358 {{"mod", {{"a", DefaultInt}, {"p", DefaultInt}}, DefaultInt}},
1359 {{"nint", {{"a", DefaultReal}}, DefaultInt}},
1360 {{"qerf", {{"x", QuadPrecision}}, QuadPrecision}, "erf"},
1361 {{"qerfc", {{"x", QuadPrecision}}, QuadPrecision}, "erfc"},
1362 {{"qerfc_scaled", {{"x", QuadPrecision}}, QuadPrecision}, "erfc_scaled"},
1363 {{"sign", {{"a", DefaultReal}, {"b", DefaultReal}}, DefaultReal}},
1364 {{"sin", {{"x", DefaultReal}}, DefaultReal}},
1365 {{"sinh", {{"x", DefaultReal}}, DefaultReal}},
1366 {{"sngl", {{"a", AnyReal}}, DefaultReal}, "real", true},
1367 {{"sqrt", {{"x", DefaultReal}}, DefaultReal}},
1368 {{"tan", {{"x", DefaultReal}}, DefaultReal}},
1369 {{"tanh", {{"x", DefaultReal}}, DefaultReal}},
1370 {{"zabs", {{"a", TypePattern{ComplexType, KindCode::exactKind, 8}}},
1371 TypePattern{RealType, KindCode::exactKind, 8}},
1372 "abs"},
1373};
1374
1375// Must be sorted by name. The rank of the return value is ignored since
1376// subroutines are do not have a return value.
1377static const IntrinsicInterface intrinsicSubroutine[]{
1378 {"abort", {}, {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1379 {"atomic_add",
1380 {{"atom", AtomicInt, Rank::atom, Optionality::required,
1381 common::Intent::InOut},
1382 {"value", AnyInt, Rank::scalar, Optionality::required,
1383 common::Intent::In},
1384 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1385 common::Intent::Out}},
1386 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1387 {"atomic_and",
1388 {{"atom", AtomicInt, Rank::atom, Optionality::required,
1389 common::Intent::InOut},
1390 {"value", AnyInt, Rank::scalar, Optionality::required,
1391 common::Intent::In},
1392 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1393 common::Intent::Out}},
1394 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1395 {"atomic_cas",
1396 {{"atom", SameAtom, Rank::atom, Optionality::required,
1397 common::Intent::InOut},
1398 {"old", SameAtom, Rank::scalar, Optionality::required,
1399 common::Intent::Out},
1400 {"compare", SameAtom, Rank::scalar, Optionality::required,
1401 common::Intent::In},
1402 {"new", SameAtom, Rank::scalar, Optionality::required,
1403 common::Intent::In},
1404 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1405 common::Intent::Out}},
1406 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1407 {"atomic_define",
1408 {{"atom", AtomicIntOrLogical, Rank::atom, Optionality::required,
1409 common::Intent::Out},
1410 {"value", AnyIntOrLogical, Rank::scalar, Optionality::required,
1411 common::Intent::In},
1412 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1413 common::Intent::Out}},
1414 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1415 {"atomic_fetch_add",
1416 {{"atom", AtomicInt, Rank::atom, Optionality::required,
1417 common::Intent::InOut},
1418 {"value", AnyInt, Rank::scalar, Optionality::required,
1419 common::Intent::In},
1420 {"old", AtomicInt, Rank::scalar, Optionality::required,
1421 common::Intent::Out},
1422 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1423 common::Intent::Out}},
1424 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1425 {"atomic_fetch_and",
1426 {{"atom", AtomicInt, Rank::atom, Optionality::required,
1427 common::Intent::InOut},
1428 {"value", AnyInt, Rank::scalar, Optionality::required,
1429 common::Intent::In},
1430 {"old", AtomicInt, Rank::scalar, Optionality::required,
1431 common::Intent::Out},
1432 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1433 common::Intent::Out}},
1434 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1435 {"atomic_fetch_or",
1436 {{"atom", AtomicInt, Rank::atom, Optionality::required,
1437 common::Intent::InOut},
1438 {"value", AnyInt, Rank::scalar, Optionality::required,
1439 common::Intent::In},
1440 {"old", AtomicInt, Rank::scalar, Optionality::required,
1441 common::Intent::Out},
1442 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1443 common::Intent::Out}},
1444 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1445 {"atomic_fetch_xor",
1446 {{"atom", AtomicInt, Rank::atom, Optionality::required,
1447 common::Intent::InOut},
1448 {"value", AnyInt, Rank::scalar, Optionality::required,
1449 common::Intent::In},
1450 {"old", AtomicInt, Rank::scalar, Optionality::required,
1451 common::Intent::Out},
1452 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1453 common::Intent::Out}},
1454 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1455 {"atomic_or",
1456 {{"atom", AtomicInt, Rank::atom, Optionality::required,
1457 common::Intent::InOut},
1458 {"value", AnyInt, Rank::scalar, Optionality::required,
1459 common::Intent::In},
1460 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1461 common::Intent::Out}},
1462 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1463 {"atomic_ref",
1464 {{"value", AnyIntOrLogical, Rank::scalar, Optionality::required,
1465 common::Intent::Out},
1466 {"atom", AtomicIntOrLogical, Rank::atom, Optionality::required,
1467 common::Intent::In},
1468 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1469 common::Intent::Out}},
1470 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1471 {"atomic_xor",
1472 {{"atom", AtomicInt, Rank::atom, Optionality::required,
1473 common::Intent::InOut},
1474 {"value", AnyInt, Rank::scalar, Optionality::required,
1475 common::Intent::In},
1476 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1477 common::Intent::Out}},
1478 {}, Rank::elemental, IntrinsicClass::atomicSubroutine},
1479 {"chdir",
1480 {{"name", DefaultChar, Rank::scalar, Optionality::required},
1481 {"status", AnyInt, Rank::scalar, Optionality::optional,
1482 common::Intent::Out}},
1483 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1484 {"co_broadcast",
1485 {{"a", AnyData, Rank::anyOrAssumedRank, Optionality::required,
1486 common::Intent::InOut},
1487 {"source_image", AnyInt, Rank::scalar, Optionality::required,
1488 common::Intent::In},
1489 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1490 common::Intent::Out},
1491 {"errmsg", DefaultChar, Rank::scalar, Optionality::optional,
1492 common::Intent::InOut}},
1493 {}, Rank::elemental, IntrinsicClass::collectiveSubroutine},
1494 {"co_max",
1495 {{"a", AnyIntOrRealOrChar, Rank::anyOrAssumedRank,
1496 Optionality::required, common::Intent::InOut},
1497 {"result_image", AnyInt, Rank::scalar, Optionality::optional,
1498 common::Intent::In},
1499 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1500 common::Intent::Out},
1501 {"errmsg", DefaultChar, Rank::scalar, Optionality::optional,
1502 common::Intent::InOut}},
1503 {}, Rank::elemental, IntrinsicClass::collectiveSubroutine},
1504 {"co_min",
1505 {{"a", AnyIntOrRealOrChar, Rank::anyOrAssumedRank,
1506 Optionality::required, common::Intent::InOut},
1507 {"result_image", AnyInt, Rank::scalar, Optionality::optional,
1508 common::Intent::In},
1509 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1510 common::Intent::Out},
1511 {"errmsg", DefaultChar, Rank::scalar, Optionality::optional,
1512 common::Intent::InOut}},
1513 {}, Rank::elemental, IntrinsicClass::collectiveSubroutine},
1514 {"co_reduce",
1515 {{"a", AnyData, Rank::known, Optionality::required,
1516 common::Intent::InOut},
1517 {"operation", SameType, Rank::reduceOperation},
1518 {"result_image", AnyInt, Rank::scalar, Optionality::optional,
1519 common::Intent::In},
1520 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1521 common::Intent::Out},
1522 {"errmsg", DefaultChar, Rank::scalar, Optionality::optional,
1523 common::Intent::InOut}},
1524 {}, Rank::elemental, IntrinsicClass::collectiveSubroutine},
1525 {"co_sum",
1526 {{"a", AnyNumeric, Rank::anyOrAssumedRank, Optionality::required,
1527 common::Intent::InOut},
1528 {"result_image", AnyInt, Rank::scalar, Optionality::optional,
1529 common::Intent::In},
1530 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1531 common::Intent::Out},
1532 {"errmsg", DefaultChar, Rank::scalar, Optionality::optional,
1533 common::Intent::InOut}},
1534 {}, Rank::elemental, IntrinsicClass::collectiveSubroutine},
1535 {"cpu_time",
1536 {{"time", AnyReal, Rank::scalar, Optionality::required,
1537 common::Intent::Out}},
1538 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1539 {"date_and_time",
1540 {{"date", DefaultChar, Rank::scalar, Optionality::optional,
1541 common::Intent::Out},
1542 {"time", DefaultChar, Rank::scalar, Optionality::optional,
1543 common::Intent::Out},
1544 {"zone", DefaultChar, Rank::scalar, Optionality::optional,
1545 common::Intent::Out},
1546 {"values", AnyInt, Rank::vector, Optionality::optional,
1547 common::Intent::Out}},
1548 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1549 {"etime",
1550 {{"values", TypePattern{RealType, KindCode::exactKind, 4}, Rank::vector,
1551 Optionality::required, common::Intent::Out},
1552 {"time", TypePattern{RealType, KindCode::exactKind, 4},
1553 Rank::scalar, Optionality::required, common::Intent::Out}},
1554 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1555 {"event_query",
1556 {{"event", EventType, Rank::scalar},
1557 {"count", AnyInt, Rank::scalar, Optionality::required,
1558 common::Intent::Out},
1559 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1560 common::Intent::Out}},
1561 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1562 {"execute_command_line",
1563 {{"command", DefaultChar, Rank::scalar},
1564 {"wait", AnyLogical, Rank::scalar, Optionality::optional},
1565 {"exitstat",
1566 TypePattern{IntType, KindCode::greaterOrEqualToKind, 4},
1567 Rank::scalar, Optionality::optional, common::Intent::InOut},
1568 {"cmdstat", TypePattern{IntType, KindCode::greaterOrEqualToKind, 2},
1569 Rank::scalar, Optionality::optional, common::Intent::Out},
1570 {"cmdmsg", DefaultChar, Rank::scalar, Optionality::optional,
1571 common::Intent::InOut}},
1572 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1573 {"exit", {{"status", DefaultInt, Rank::scalar, Optionality::optional}}, {},
1574 Rank::elemental, IntrinsicClass::impureSubroutine},
1575 {"free", {{"ptr", Addressable}}, {}},
1576 {"fseek",
1577 {{"unit", AnyInt, Rank::scalar}, {"offset", AnyInt, Rank::scalar},
1578 {"whence", AnyInt, Rank::scalar},
1579 {"status", AnyInt, Rank::scalar, Optionality::optional,
1580 common::Intent::InOut}},
1581 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1582 {"ftell",
1583 {{"unit", AnyInt, Rank::scalar},
1584 {"offset", AnyInt, Rank::scalar, Optionality::required,
1585 common::Intent::Out}},
1586 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1587 {"get_command",
1588 {{"command", DefaultChar, Rank::scalar, Optionality::optional,
1589 common::Intent::Out},
1590 {"length", TypePattern{IntType, KindCode::greaterOrEqualToKind, 2},
1591 Rank::scalar, Optionality::optional, common::Intent::Out},
1592 {"status", AnyInt, Rank::scalar, Optionality::optional,
1593 common::Intent::Out},
1594 {"errmsg", DefaultChar, Rank::scalar, Optionality::optional,
1595 common::Intent::InOut}},
1596 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1597 {"get_command_argument",
1598 {{"number", AnyInt, Rank::scalar},
1599 {"value", DefaultChar, Rank::scalar, Optionality::optional,
1600 common::Intent::Out},
1601 {"length", TypePattern{IntType, KindCode::greaterOrEqualToKind, 2},
1602 Rank::scalar, Optionality::optional, common::Intent::Out},
1603 {"status", AnyInt, Rank::scalar, Optionality::optional,
1604 common::Intent::Out},
1605 {"errmsg", DefaultChar, Rank::scalar, Optionality::optional,
1606 common::Intent::InOut}},
1607 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1608 {"get_environment_variable",
1609 {{"name", DefaultChar, Rank::scalar},
1610 {"value", DefaultChar, Rank::scalar, Optionality::optional,
1611 common::Intent::Out},
1612 {"length", AnyInt, Rank::scalar, Optionality::optional,
1613 common::Intent::Out},
1614 {"status", AnyInt, Rank::scalar, Optionality::optional,
1615 common::Intent::Out},
1616 {"trim_name", AnyLogical, Rank::scalar, Optionality::optional},
1617 {"errmsg", DefaultChar, Rank::scalar, Optionality::optional,
1618 common::Intent::InOut}},
1619 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1620 {"getcwd",
1621 {{"c", DefaultChar, Rank::scalar, Optionality::required,
1622 common::Intent::Out},
1623 {"status", TypePattern{IntType, KindCode::greaterOrEqualToKind, 4},
1624 Rank::scalar, Optionality::optional, common::Intent::Out}},
1625 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1626 {"hostnm",
1627 {{"c", DefaultChar, Rank::scalar, Optionality::required,
1628 common::Intent::Out},
1629 {"status", TypePattern{IntType, KindCode::greaterOrEqualToKind, 4},
1630 Rank::scalar, Optionality::optional, common::Intent::Out}},
1631 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1632 {"move_alloc",
1633 {{"from", SameType, Rank::known, Optionality::required,
1634 common::Intent::InOut},
1635 {"to", SameType, Rank::known, Optionality::required,
1636 common::Intent::Out},
1637 {"stat", AnyInt, Rank::scalar, Optionality::optional,
1638 common::Intent::Out},
1639 {"errmsg", DefaultChar, Rank::scalar, Optionality::optional,
1640 common::Intent::InOut}},
1641 {}, Rank::elemental, IntrinsicClass::pureSubroutine},
1642 {"perror", {{"string", DefaultChar, Rank::scalar}}, {}, Rank::elemental,
1643 IntrinsicClass::impureSubroutine},
1644 {"putenv",
1645 {{"str", DefaultChar, Rank::scalar, Optionality::required,
1646 common::Intent::In},
1647 {"status", DefaultInt, Rank::scalar, Optionality::optional,
1648 common::Intent::Out}},
1649 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1650 {"mvbits",
1651 {{"from", SameIntOrUnsigned}, {"frompos", AnyInt}, {"len", AnyInt},
1652 {"to", SameIntOrUnsigned, Rank::elemental, Optionality::required,
1653 common::Intent::Out},
1654 {"topos", AnyInt}},
1655 {}, Rank::elemental, IntrinsicClass::elementalSubroutine}, // elemental
1656 {"random_init",
1657 {{"repeatable", AnyLogical, Rank::scalar},
1658 {"image_distinct", AnyLogical, Rank::scalar}},
1659 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1660 {"random_number",
1661 {{"harvest", {RealType | UnsignedType, KindCode::any}, Rank::known,
1662 Optionality::required, common::Intent::Out,
1663 {ArgFlag::notAssumedSize}}},
1664 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1665 {"random_seed",
1666 {{"size", DefaultInt, Rank::scalar, Optionality::optional,
1667 common::Intent::Out},
1668 {"put", DefaultInt, Rank::vector, Optionality::optional},
1669 {"get", DefaultInt, Rank::vector, Optionality::optional,
1670 common::Intent::Out}},
1671 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1672 {"rename",
1673 {{"path1", DefaultChar, Rank::scalar},
1674 {"path2", DefaultChar, Rank::scalar},
1675 {"status", DefaultInt, Rank::scalar, Optionality::optional,
1676 common::Intent::Out}},
1677 {}, Rank::scalar, IntrinsicClass::impureSubroutine},
1678 {"second", {{"time", DefaultReal, Rank::scalar}}, {}, Rank::scalar,
1679 IntrinsicClass::impureSubroutine},
1680 {"system",
1681 {{"command", DefaultChar, Rank::scalar},
1682 {"exitstat", DefaultInt, Rank::scalar, Optionality::optional,
1683 common::Intent::Out}},
1684 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1685 {"system_clock",
1686 {{"count", AnyInt, Rank::scalar, Optionality::optional,
1687 common::Intent::Out},
1688 {"count_rate", AnyIntOrReal, Rank::scalar, Optionality::optional,
1689 common::Intent::Out},
1690 {"count_max", AnyInt, Rank::scalar, Optionality::optional,
1691 common::Intent::Out}},
1692 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1693 {"signal",
1694 {{"number", AnyInt, Rank::scalar, Optionality::required,
1695 common::Intent::In},
1696 // note: any pointer also accepts AnyInt
1697 {"handler", AnyPointer, Rank::scalar, Optionality::required,
1698 common::Intent::In},
1699 {"status", AnyInt, Rank::scalar, Optionality::optional,
1700 common::Intent::Out}},
1701 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1702 {"sleep",
1703 {{"seconds", AnyInt, Rank::scalar, Optionality::required,
1704 common::Intent::In}},
1705 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1706 {"unlink",
1707 {{"path", DefaultChar, Rank::scalar, Optionality::required,
1708 common::Intent::In},
1709 {"status", DefaultInt, Rank::scalar, Optionality::optional,
1710 common::Intent::Out}},
1711 {}, Rank::elemental, IntrinsicClass::impureSubroutine},
1712};
1713
1714// Finds a built-in derived type and returns it as a DynamicType.
1715static DynamicType GetBuiltinDerivedType(
1716 const semantics::Scope *builtinsScope, const char *which) {
1717 if (!builtinsScope) {
1718 common::die("INTERNAL: The __fortran_builtins module was not found, and "
1719 "the type '%s' was required",
1720 which);
1721 }
1722 auto iter{
1723 builtinsScope->find(semantics::SourceName{which, std::strlen(which)})};
1724 if (iter == builtinsScope->cend()) {
1725 // keep the string all together
1726 // clang-format off
1727 common::die(
1728 "INTERNAL: The __fortran_builtins module does not define the type '%s'",
1729 which);
1730 // clang-format on
1731 }
1732 const semantics::Symbol &symbol{*iter->second};
1733 const semantics::Scope &scope{DEREF(symbol.scope())};
1734 const semantics::DerivedTypeSpec &derived{DEREF(scope.derivedTypeSpec())};
1735 return DynamicType{derived};
1736}
1737
1738static std::int64_t GetBuiltinKind(
1739 const semantics::Scope *builtinsScope, const char *which) {
1740 if (!builtinsScope) {
1741 common::die("INTERNAL: The __fortran_builtins module was not found, and "
1742 "the kind '%s' was required",
1743 which);
1744 }
1745 auto iter{
1746 builtinsScope->find(semantics::SourceName{which, std::strlen(which)})};
1747 if (iter == builtinsScope->cend()) {
1748 common::die(
1749 "INTERNAL: The __fortran_builtins module does not define the kind '%s'",
1750 which);
1751 }
1752 const semantics::Symbol &symbol{*iter->second};
1753 const auto &details{
1754 DEREF(symbol.detailsIf<semantics::ObjectEntityDetails>())};
1755 if (const auto kind{ToInt64(details.init())}) {
1756 return *kind;
1757 } else {
1758 common::die(
1759 "INTERNAL: The __fortran_builtins module does not define the kind '%s'",
1760 which);
1761 return -1;
1762 }
1763}
1764
1765// Ensure that the keywords of arguments to MAX/MIN and their variants
1766// are of the form A123 with no duplicates or leading zeroes.
1767static bool CheckMaxMinArgument(parser::CharBlock keyword,
1768 std::set<parser::CharBlock> &set, const char *intrinsicName,
1769 parser::ContextualMessages &messages) {
1770 std::size_t j{1};
1771 for (; j < keyword.size(); ++j) {
1772 char ch{(keyword)[j]};
1773 if (ch < (j == 1 ? '1' : '0') || ch > '9') {
1774 break;
1775 }
1776 }
1777 if (keyword.size() < 2 || (keyword)[0] != 'a' || j < keyword.size()) {
1778 messages.Say(keyword,
1779 "argument keyword '%s=' is not known in call to '%s'"_err_en_US,
1780 keyword, intrinsicName);
1781 return false;
1782 }
1783 if (!set.insert(keyword).second) {
1784 messages.Say(keyword,
1785 "argument keyword '%s=' was repeated in call to '%s'"_err_en_US,
1786 keyword, intrinsicName);
1787 return false;
1788 }
1789 return true;
1790}
1791
1792// Validate the keyword, if any, and ensure that A1 and A2 are always placed in
1793// first and second position in actualForDummy. A1 and A2 are special since they
1794// are not optional. The rest of the arguments are not sorted, there are no
1795// differences between them.
1796static bool CheckAndPushMinMaxArgument(ActualArgument &arg,
1797 std::vector<ActualArgument *> &actualForDummy,
1798 std::set<parser::CharBlock> &set, const char *intrinsicName,
1799 parser::ContextualMessages &messages) {
1800 if (std::optional<parser::CharBlock> keyword{arg.keyword()}) {
1801 if (!CheckMaxMinArgument(*keyword, set, intrinsicName, messages)) {
1802 return false;
1803 }
1804 const bool isA1{*keyword == parser::CharBlock{"a1", 2}};
1805 if (isA1 && !actualForDummy[0]) {
1806 actualForDummy[0] = &arg;
1807 return true;
1808 }
1809 const bool isA2{*keyword == parser::CharBlock{"a2", 2}};
1810 if (isA2 && !actualForDummy[1]) {
1811 actualForDummy[1] = &arg;
1812 return true;
1813 }
1814 if (isA1 || isA2) {
1815 // Note that for arguments other than a1 and a2, this error will be caught
1816 // later in check-call.cpp.
1817 messages.Say(*keyword,
1818 "keyword argument '%s=' to intrinsic '%s' was supplied "
1819 "positionally by an earlier actual argument"_err_en_US,
1820 *keyword, intrinsicName);
1821 return false;
1822 }
1823 } else {
1824 if (actualForDummy.size() == 2) {
1825 if (!actualForDummy[0] && !actualForDummy[1]) {
1826 actualForDummy[0] = &arg;
1827 return true;
1828 } else if (!actualForDummy[1]) {
1829 actualForDummy[1] = &arg;
1830 return true;
1831 }
1832 }
1833 }
1834 actualForDummy.push_back(&arg);
1835 return true;
1836}
1837
1838static bool CheckAtomicKind(const ActualArgument &arg,
1839 const semantics::Scope *builtinsScope, parser::ContextualMessages &messages,
1840 const char *keyword) {
1841 std::string atomicKindStr;
1842 std::optional<DynamicType> type{arg.GetType()};
1843
1844 if (type->category() == TypeCategory::Integer) {
1845 atomicKindStr = "atomic_int_kind";
1846 } else if (type->category() == TypeCategory::Logical) {
1847 atomicKindStr = "atomic_logical_kind";
1848 } else {
1849 common::die("atomic_int_kind or atomic_logical_kind from iso_fortran_env "
1850 "must be used with IntType or LogicalType");
1851 }
1852
1853 bool argOk{type->kind() ==
1854 GetBuiltinKind(builtinsScope, ("__builtin_" + atomicKindStr).c_str())};
1855 if (!argOk) {
1856 messages.Say(arg.sourceLocation(),
1857 "Actual argument for '%s=' must have kind=atomic_%s_kind, but is '%s'"_err_en_US,
1858 keyword, type->category() == TypeCategory::Integer ? "int" : "logical",
1859 type->AsFortran());
1860 }
1861 return argOk;
1862}
1863
1864// Intrinsic interface matching against the arguments of a particular
1865// procedure reference.
1866std::optional<SpecificCall> IntrinsicInterface::Match(
1867 const CallCharacteristics &call,
1868 const common::IntrinsicTypeDefaultKinds &defaults,
1869 ActualArguments &arguments, FoldingContext &context,
1870 const semantics::Scope *builtinsScope) const {
1871 auto &messages{context.messages()};
1872 // Attempt to construct a 1-1 correspondence between the dummy arguments in
1873 // a particular intrinsic procedure's generic interface and the actual
1874 // arguments in a procedure reference.
1875 std::size_t dummyArgPatterns{0};
1876 for (; dummyArgPatterns < maxArguments && dummy[dummyArgPatterns].keyword;
1877 ++dummyArgPatterns) {
1878 }
1879 // MAX and MIN (and others that map to them) allow their last argument to
1880 // be repeated indefinitely. The actualForDummy vector is sized
1881 // and null-initialized to the non-repeated dummy argument count
1882 // for other intrinsics.
1883 bool isMaxMin{dummyArgPatterns > 0 &&
1884 dummy[dummyArgPatterns - 1].optionality == Optionality::repeats};
1885 std::vector<ActualArgument *> actualForDummy(
1886 isMaxMin ? 2 : dummyArgPatterns, nullptr);
1887 bool anyMissingActualArgument{false};
1888 std::set<parser::CharBlock> maxMinKeywords;
1889 bool anyKeyword{false};
1890 int which{0};
1891 for (std::optional<ActualArgument> &arg : arguments) {
1892 ++which;
1893 if (arg) {
1894 if (arg->isAlternateReturn()) {
1895 messages.Say(arg->sourceLocation(),
1896 "alternate return specifier not acceptable on call to intrinsic '%s'"_err_en_US,
1897 name);
1898 return std::nullopt;
1899 }
1900 if (arg->keyword()) {
1901 anyKeyword = true;
1902 } else if (anyKeyword) {
1903 messages.Say(arg ? arg->sourceLocation() : std::nullopt,
1904 "actual argument #%d without a keyword may not follow an actual argument with a keyword"_err_en_US,
1905 which);
1906 return std::nullopt;
1907 }
1908 } else {
1909 anyMissingActualArgument = true;
1910 continue;
1911 }
1912 if (isMaxMin) {
1913 if (!CheckAndPushMinMaxArgument(
1914 *arg, actualForDummy, maxMinKeywords, name, messages)) {
1915 return std::nullopt;
1916 }
1917 } else {
1918 bool found{false};
1919 for (std::size_t j{0}; j < dummyArgPatterns && !found; ++j) {
1920 if (dummy[j].optionality == Optionality::missing) {
1921 continue;
1922 }
1923 if (arg->keyword()) {
1924 found = *arg->keyword() == dummy[j].keyword;
1925 if (found) {
1926 if (const auto *previous{actualForDummy[j]}) {
1927 if (previous->keyword()) {
1928 messages.Say(*arg->keyword(),
1929 "repeated keyword argument to intrinsic '%s'"_err_en_US,
1930 name);
1931 } else {
1932 messages.Say(*arg->keyword(),
1933 "keyword argument to intrinsic '%s' was supplied "
1934 "positionally by an earlier actual argument"_err_en_US,
1935 name);
1936 }
1937 return std::nullopt;
1938 }
1939 }
1940 } else {
1941 found = !actualForDummy[j] && !anyMissingActualArgument;
1942 }
1943 if (found) {
1944 actualForDummy[j] = &*arg;
1945 }
1946 }
1947 if (!found) {
1948 if (arg->keyword()) {
1949 messages.Say(*arg->keyword(),
1950 "unknown keyword argument to intrinsic '%s'"_err_en_US, name);
1951 } else {
1952 messages.Say(
1953 "too many actual arguments for intrinsic '%s'"_err_en_US, name);
1954 }
1955 return std::nullopt;
1956 }
1957 }
1958 }
1959
1960 std::size_t dummies{actualForDummy.size()};
1961
1962 // Check types and kinds of the actual arguments against the intrinsic's
1963 // interface. Ensure that two or more arguments that have to have the same
1964 // (or compatible) type and kind do so. Check for missing non-optional
1965 // arguments now, too.
1966 const ActualArgument *sameArg{nullptr};
1967 const ActualArgument *operandArg{nullptr};
1968 const IntrinsicDummyArgument *kindDummyArg{nullptr};
1969 const ActualArgument *kindArg{nullptr};
1970 std::optional<int> dimArg;
1971 for (std::size_t j{0}; j < dummies; ++j) {
1972 const IntrinsicDummyArgument &d{dummy[std::min(j, dummyArgPatterns - 1)]};
1973 if (d.typePattern.kindCode == KindCode::kindArg) {
1974 CHECK(!kindDummyArg);
1975 kindDummyArg = &d;
1976 }
1977 const ActualArgument *arg{actualForDummy[j]};
1978 if (!arg) {
1979 if (d.optionality == Optionality::required) {
1980 std::string kw{d.keyword};
1981 if (isMaxMin && !actualForDummy[0] && !actualForDummy[1]) {
1982 messages.Say("missing mandatory 'a1=' and 'a2=' arguments"_err_en_US);
1983 } else {
1984 messages.Say(
1985 "missing mandatory '%s=' argument"_err_en_US, kw.c_str());
1986 }
1987 return std::nullopt; // missing non-OPTIONAL argument
1988 } else {
1989 continue;
1990 }
1991 }
1992 if (d.optionality == Optionality::missing) {
1993 messages.Say(arg->sourceLocation(), "unexpected '%s=' argument"_err_en_US,
1994 d.keyword);
1995 return std::nullopt;
1996 }
1997 if (!d.flags.test(ArgFlag::canBeNullPointer)) {
1998 if (const auto *expr{arg->UnwrapExpr()}; IsNullPointer(expr)) {
1999 if (!IsBareNullPointer(expr) && IsNullObjectPointer(expr) &&
2000 d.flags.test(ArgFlag::canBeMoldNull)) {
2001 // ok
2002 } else {
2003 messages.Say(arg->sourceLocation(),
2004 "A NULL() pointer is not allowed for '%s=' intrinsic argument"_err_en_US,
2005 d.keyword);
2006 return std::nullopt;
2007 }
2008 }
2009 }
2010 if (!d.flags.test(ArgFlag::canBeNullAllocatable) &&
2011 IsNullAllocatable(arg->UnwrapExpr()) &&
2012 !d.flags.test(ArgFlag::canBeMoldNull)) {
2013 messages.Say(arg->sourceLocation(),
2014 "A NULL() allocatable is not allowed for '%s=' intrinsic argument"_err_en_US,
2015 d.keyword);
2016 return std::nullopt;
2017 }
2018 if (d.flags.test(ArgFlag::notAssumedSize)) {
2019 if (auto named{ExtractNamedEntity(*arg)}) {
2020 if (semantics::IsAssumedSizeArray(named->GetLastSymbol())) {
2021 messages.Say(arg->sourceLocation(),
2022 "The '%s=' argument to the intrinsic procedure '%s' may not be assumed-size"_err_en_US,
2023 d.keyword, name);
2024 return std::nullopt;
2025 }
2026 }
2027 }
2028 if (arg->GetAssumedTypeDummy()) {
2029 // TYPE(*) assumed-type dummy argument forwarded to intrinsic
2030 if (d.typePattern.categorySet == AnyType &&
2031 (d.rank == Rank::anyOrAssumedRank ||
2032 d.rank == Rank::arrayOrAssumedRank) &&
2033 (d.typePattern.kindCode == KindCode::any ||
2034 d.typePattern.kindCode == KindCode::addressable)) {
2035 continue;
2036 } else {
2037 messages.Say(arg->sourceLocation(),
2038 "Assumed type TYPE(*) dummy argument not allowed for '%s=' intrinsic argument"_err_en_US,
2039 d.keyword);
2040 return std::nullopt;
2041 }
2042 }
2043 std::optional<DynamicType> type{arg->GetType()};
2044 if (!type) {
2045 CHECK(arg->Rank() == 0);
2046 const Expr<SomeType> &expr{DEREF(arg->UnwrapExpr())};
2047 if (IsBOZLiteral(expr)) {
2048 if (d.typePattern.kindCode == KindCode::typeless ||
2049 d.rank == Rank::elementalOrBOZ) {
2050 continue;
2051 } else {
2052 const IntrinsicDummyArgument *nextParam{
2053 j + 1 < dummies ? &dummy[j + 1] : nullptr};
2054 if (nextParam && nextParam->rank == Rank::elementalOrBOZ) {
2055 messages.Say(arg->sourceLocation(),
2056 "Typeless (BOZ) not allowed for both '%s=' & '%s=' arguments"_err_en_US, // C7109
2057 d.keyword, nextParam->keyword);
2058 } else {
2059 messages.Say(arg->sourceLocation(),
2060 "Typeless (BOZ) not allowed for '%s=' argument"_err_en_US,
2061 d.keyword);
2062 }
2063 }
2064 } else {
2065 // NULL(no MOLD=), procedure, or procedure pointer
2066 CHECK(IsProcedurePointerTarget(expr));
2067 if (d.typePattern.kindCode == KindCode::addressable ||
2068 d.rank == Rank::reduceOperation) {
2069 continue;
2070 } else if (d.typePattern.kindCode == KindCode::nullPointerType) {
2071 continue;
2072 } else if (IsBareNullPointer(&expr)) {
2073 // checked elsewhere
2074 continue;
2075 } else {
2076 CHECK(IsProcedure(expr) || IsProcedurePointer(expr));
2077 messages.Say(arg->sourceLocation(),
2078 "Actual argument for '%s=' may not be a procedure"_err_en_US,
2079 d.keyword);
2080 }
2081 }
2082 return std::nullopt;
2083 } else if (!d.typePattern.categorySet.test(type->category())) {
2084 messages.Say(arg->sourceLocation(),
2085 "Actual argument for '%s=' has bad type '%s'"_err_en_US, d.keyword,
2086 type->AsFortran());
2087 return std::nullopt; // argument has invalid type category
2088 }
2089 bool argOk{false};
2090 switch (d.typePattern.kindCode) {
2091 case KindCode::none:
2092 case KindCode::typeless:
2093 argOk = false;
2094 break;
2095 case KindCode::eventType:
2096 argOk = !type->IsUnlimitedPolymorphic() &&
2097 type->category() == TypeCategory::Derived &&
2098 semantics::IsEventType(&type->GetDerivedTypeSpec());
2099 break;
2100 case KindCode::ieeeFlagType:
2101 argOk = !type->IsUnlimitedPolymorphic() &&
2102 type->category() == TypeCategory::Derived &&
2103 semantics::IsIeeeFlagType(&type->GetDerivedTypeSpec());
2104 break;
2105 case KindCode::ieeeRoundType:
2106 argOk = !type->IsUnlimitedPolymorphic() &&
2107 type->category() == TypeCategory::Derived &&
2108 semantics::IsIeeeRoundType(&type->GetDerivedTypeSpec());
2109 break;
2110 case KindCode::teamType:
2111 argOk = !type->IsUnlimitedPolymorphic() &&
2112 type->category() == TypeCategory::Derived &&
2113 semantics::IsTeamType(&type->GetDerivedTypeSpec());
2114 break;
2115 case KindCode::defaultIntegerKind:
2116 argOk = type->kind() == defaults.GetDefaultKind(TypeCategory::Integer);
2117 break;
2118 case KindCode::defaultRealKind:
2119 argOk = type->kind() == defaults.GetDefaultKind(TypeCategory::Real);
2120 break;
2121 case KindCode::doublePrecision:
2122 argOk = type->kind() == defaults.doublePrecisionKind();
2123 break;
2124 case KindCode::quadPrecision:
2125 argOk = type->kind() == defaults.quadPrecisionKind();
2126 break;
2127 case KindCode::defaultCharKind:
2128 argOk = type->kind() == defaults.GetDefaultKind(TypeCategory::Character);
2129 break;
2130 case KindCode::defaultLogicalKind:
2131 argOk = type->kind() == defaults.GetDefaultKind(TypeCategory::Logical);
2132 break;
2133 case KindCode::any:
2134 argOk = true;
2135 break;
2136 case KindCode::kindArg:
2137 CHECK(type->category() == TypeCategory::Integer);
2138 CHECK(!kindArg);
2139 kindArg = arg;
2140 argOk = true;
2141 break;
2142 case KindCode::dimArg:
2143 CHECK(type->category() == TypeCategory::Integer);
2144 dimArg = j;
2145 argOk = true;
2146 break;
2147 case KindCode::same: {
2148 if (!sameArg) {
2149 sameArg = arg;
2150 }
2151 auto sameType{sameArg->GetType().value()};
2152 if (name == "move_alloc"s) {
2153 // second argument can be more general
2154 argOk = type->IsTkLenCompatibleWith(sameType);
2155 } else if (name == "merge"s) {
2156 argOk = type->IsTkLenCompatibleWith(sameType) &&
2157 sameType.IsTkLenCompatibleWith(*type);
2158 } else {
2159 argOk = sameType.IsTkLenCompatibleWith(*type);
2160 }
2161 } break;
2162 case KindCode::sameKind:
2163 if (!sameArg) {
2164 sameArg = arg;
2165 }
2166 argOk = type->IsTkCompatibleWith(sameArg->GetType().value());
2167 break;
2168 case KindCode::operand:
2169 if (!operandArg) {
2170 operandArg = arg;
2171 } else if (auto prev{operandArg->GetType()}) {
2172 if (type->category() == prev->category()) {
2173 if (type->kind() > prev->kind()) {
2174 operandArg = arg;
2175 }
2176 } else if (prev->category() == TypeCategory::Integer) {
2177 operandArg = arg;
2178 }
2179 }
2180 argOk = true;
2181 break;
2182 case KindCode::effectiveKind:
2183 common::die("INTERNAL: KindCode::effectiveKind appears on argument '%s' "
2184 "for intrinsic '%s'",
2185 d.keyword, name);
2186 break;
2187 case KindCode::addressable:
2188 case KindCode::nullPointerType:
2189 argOk = true;
2190 break;
2191 case KindCode::exactKind:
2192 argOk = type->kind() == d.typePattern.kindValue;
2193 break;
2194 case KindCode::greaterOrEqualToKind:
2195 argOk = type->kind() >= d.typePattern.kindValue;
2196 break;
2197 case KindCode::sameAtom:
2198 if (!sameArg) {
2199 sameArg = arg;
2200 argOk = CheckAtomicKind(DEREF(arg), builtinsScope, messages, d.keyword);
2201 } else {
2202 argOk = type->IsTkCompatibleWith(sameArg->GetType().value());
2203 if (!argOk) {
2204 messages.Say(arg->sourceLocation(),
2205 "Actual argument for '%s=' must have same type and kind as 'atom=', but is '%s'"_err_en_US,
2206 d.keyword, type->AsFortran());
2207 }
2208 }
2209 if (!argOk) {
2210 return std::nullopt;
2211 }
2212 break;
2213 case KindCode::atomicIntKind:
2214 argOk = CheckAtomicKind(DEREF(arg), builtinsScope, messages, d.keyword);
2215 if (!argOk) {
2216 return std::nullopt;
2217 }
2218 break;
2219 case KindCode::atomicIntOrLogicalKind:
2220 argOk = CheckAtomicKind(DEREF(arg), builtinsScope, messages, d.keyword);
2221 if (!argOk) {
2222 return std::nullopt;
2223 }
2224 break;
2225 default:
2226 CRASH_NO_CASE;
2227 }
2228 if (!argOk) {
2229 messages.Say(arg->sourceLocation(),
2230 "Actual argument for '%s=' has bad type or kind '%s'"_err_en_US,
2231 d.keyword, type->AsFortran());
2232 return std::nullopt;
2233 }
2234 }
2235
2236 // Check the ranks of the arguments against the intrinsic's interface.
2237 const ActualArgument *arrayArg{nullptr};
2238 const char *arrayArgName{nullptr};
2239 const ActualArgument *knownArg{nullptr};
2240 std::optional<std::int64_t> shapeArgSize;
2241 int elementalRank{0};
2242 for (std::size_t j{0}; j < dummies; ++j) {
2243 const IntrinsicDummyArgument &d{dummy[std::min(j, dummyArgPatterns - 1)]};
2244 if (const ActualArgument *arg{actualForDummy[j]}) {
2245 bool isAssumedRank{IsAssumedRank(*arg)};
2246 if (isAssumedRank && d.rank != Rank::anyOrAssumedRank &&
2247 d.rank != Rank::arrayOrAssumedRank) {
2248 messages.Say(arg->sourceLocation(),
2249 "Assumed-rank array cannot be forwarded to '%s=' argument"_err_en_US,
2250 d.keyword);
2251 return std::nullopt;
2252 }
2253 int rank{arg->Rank()};
2254 bool argOk{false};
2255 switch (d.rank) {
2256 case Rank::elemental:
2257 case Rank::elementalOrBOZ:
2258 if (elementalRank == 0) {
2259 elementalRank = rank;
2260 }
2261 argOk = rank == 0 || rank == elementalRank;
2262 break;
2263 case Rank::scalar:
2264 argOk = rank == 0;
2265 break;
2266 case Rank::vector:
2267 argOk = rank == 1;
2268 break;
2269 case Rank::shape:
2270 CHECK(!shapeArgSize);
2271 if (rank != 1) {
2272 messages.Say(arg->sourceLocation(),
2273 "'shape=' argument must be an array of rank 1"_err_en_US);
2274 return std::nullopt;
2275 } else {
2276 if (auto shape{GetShape(context, *arg)}) {
2277 if (auto constShape{AsConstantShape(context, *shape)}) {
2278 shapeArgSize = constShape->At(ConstantSubscripts{1}).ToInt64();
2279 CHECK(shapeArgSize.value() >= 0);
2280 argOk = *shapeArgSize <= common::maxRank;
2281 }
2282 }
2283 }
2284 if (!argOk) {
2285 if (shapeArgSize.value_or(0) > common::maxRank) {
2286 messages.Say(arg->sourceLocation(),
2287 "'shape=' argument must be a vector of at most %d elements (has %jd)"_err_en_US,
2288 common::maxRank, std::intmax_t{*shapeArgSize});
2289 } else {
2290 messages.Say(arg->sourceLocation(),
2291 "'shape=' argument must be a vector of known size"_err_en_US);
2292 }
2293 return std::nullopt;
2294 }
2295 break;
2296 case Rank::matrix:
2297 argOk = rank == 2;
2298 break;
2299 case Rank::array:
2300 argOk = rank > 0;
2301 if (!arrayArg) {
2302 arrayArg = arg;
2303 arrayArgName = d.keyword;
2304 }
2305 break;
2306 case Rank::coarray:
2307 argOk = IsCoarray(*arg);
2308 if (!argOk) {
2309 messages.Say(arg->sourceLocation(),
2310 "'coarray=' argument must have corank > 0 for intrinsic '%s'"_err_en_US,
2311 name);
2312 return std::nullopt;
2313 }
2314 break;
2315 case Rank::atom:
2316 argOk = rank == 0 && (IsCoarray(*arg) || ExtractCoarrayRef(*arg));
2317 if (!argOk) {
2318 messages.Say(arg->sourceLocation(),
2319 "'%s=' argument must be a scalar coarray or coindexed object for intrinsic '%s'"_err_en_US,
2320 d.keyword, name);
2321 return std::nullopt;
2322 }
2323 break;
2324 case Rank::known:
2325 if (!knownArg) {
2326 knownArg = arg;
2327 }
2328 argOk = !isAssumedRank && rank == knownArg->Rank();
2329 break;
2330 case Rank::anyOrAssumedRank:
2331 case Rank::arrayOrAssumedRank:
2332 if (isAssumedRank) {
2333 argOk = true;
2334 break;
2335 }
2336 if (d.rank == Rank::arrayOrAssumedRank && rank == 0) {
2337 argOk = false;
2338 break;
2339 }
2340 if (!knownArg) {
2341 knownArg = arg;
2342 }
2343 if (rank > 0 &&
2344 (std::strcmp(s1: name, s2: "shape") == 0 ||
2345 std::strcmp(s1: name, s2: "size") == 0 ||
2346 std::strcmp(s1: name, s2: "ubound") == 0)) {
2347 // Check for a whole assumed-size array argument.
2348 // These are disallowed for SHAPE, and require DIM= for
2349 // SIZE and UBOUND.
2350 // (A previous error message for UBOUND will take precedence
2351 // over this one, as this error is caught by the second entry
2352 // for UBOUND.)
2353 if (auto named{ExtractNamedEntity(*arg)}) {
2354 if (semantics::IsAssumedSizeArray(ResolveAssociations(
2355 named->GetLastSymbol().GetUltimate()))) {
2356 if (strcmp(s1: name, s2: "shape") == 0) {
2357 messages.Say(arg->sourceLocation(),
2358 "The 'source=' argument to the intrinsic function 'shape' may not be assumed-size"_err_en_US);
2359 return std::nullopt;
2360 } else if (!dimArg) {
2361 messages.Say(arg->sourceLocation(),
2362 "A dim= argument is required for '%s' when the array is assumed-size"_err_en_US,
2363 name);
2364 return std::nullopt;
2365 }
2366 }
2367 }
2368 }
2369 argOk = true;
2370 break;
2371 case Rank::conformable: // arg must be conformable with previous arrayArg
2372 CHECK(arrayArg);
2373 CHECK(arrayArgName);
2374 if (const std::optional<Shape> &arrayArgShape{
2375 GetShape(context, *arrayArg)}) {
2376 if (std::optional<Shape> argShape{GetShape(context, *arg)}) {
2377 std::string arrayArgMsg{"'"};
2378 arrayArgMsg = arrayArgMsg + arrayArgName + "='" + " argument";
2379 std::string argMsg{"'"};
2380 argMsg = argMsg + d.keyword + "='" + " argument";
2381 CheckConformance(context.messages(), *arrayArgShape, *argShape,
2382 CheckConformanceFlags::RightScalarExpandable,
2383 arrayArgMsg.c_str(), argMsg.c_str());
2384 }
2385 }
2386 argOk = true; // Avoid an additional error message
2387 break;
2388 case Rank::dimReduced:
2389 case Rank::dimRemovedOrScalar:
2390 CHECK(arrayArg);
2391 argOk = rank == 0 || rank + 1 == arrayArg->Rank();
2392 break;
2393 case Rank::reduceOperation:
2394 // The reduction function is validated in ApplySpecificChecks().
2395 argOk = true;
2396 break;
2397 case Rank::scalarIfDim:
2398 case Rank::locReduced:
2399 case Rank::rankPlus1:
2400 case Rank::shaped:
2401 common::die("INTERNAL: result-only rank code appears on argument '%s' "
2402 "for intrinsic '%s'",
2403 d.keyword, name);
2404 }
2405 if (!argOk) {
2406 messages.Say(arg->sourceLocation(),
2407 "'%s=' argument has unacceptable rank %d"_err_en_US, d.keyword,
2408 rank);
2409 return std::nullopt;
2410 }
2411 }
2412 }
2413
2414 // Calculate the characteristics of the function result, if any
2415 std::optional<DynamicType> resultType;
2416 if (auto category{result.categorySet.LeastElement()}) {
2417 // The intrinsic is not a subroutine.
2418 if (call.isSubroutineCall) {
2419 return std::nullopt;
2420 }
2421 switch (result.kindCode) {
2422 case KindCode::defaultIntegerKind:
2423 CHECK(result.categorySet == IntType);
2424 CHECK(*category == TypeCategory::Integer);
2425 resultType = DynamicType{TypeCategory::Integer,
2426 defaults.GetDefaultKind(TypeCategory::Integer)};
2427 break;
2428 case KindCode::defaultRealKind:
2429 CHECK(result.categorySet == CategorySet{*category});
2430 CHECK(FloatingType.test(*category));
2431 resultType =
2432 DynamicType{*category, defaults.GetDefaultKind(TypeCategory::Real)};
2433 break;
2434 case KindCode::doublePrecision:
2435 CHECK(result.categorySet == CategorySet{*category});
2436 CHECK(FloatingType.test(*category));
2437 resultType = DynamicType{*category, defaults.doublePrecisionKind()};
2438 break;
2439 case KindCode::quadPrecision:
2440 CHECK(result.categorySet == CategorySet{*category});
2441 CHECK(FloatingType.test(*category));
2442 resultType = DynamicType{*category, defaults.quadPrecisionKind()};
2443 if (!context.targetCharacteristics().CanSupportType(
2444 *category, defaults.quadPrecisionKind())) {
2445 messages.Say(
2446 "%s(KIND=%jd) type not supported on this target."_err_en_US,
2447 parser::ToUpperCaseLetters(EnumToString(*category)),
2448 defaults.quadPrecisionKind());
2449 }
2450 break;
2451 case KindCode::defaultLogicalKind:
2452 CHECK(result.categorySet == LogicalType);
2453 CHECK(*category == TypeCategory::Logical);
2454 resultType = DynamicType{TypeCategory::Logical,
2455 defaults.GetDefaultKind(TypeCategory::Logical)};
2456 break;
2457 case KindCode::defaultCharKind:
2458 CHECK(result.categorySet == CharType);
2459 CHECK(*category == TypeCategory::Character);
2460 resultType = DynamicType{TypeCategory::Character,
2461 defaults.GetDefaultKind(TypeCategory::Character)};
2462 break;
2463 case KindCode::same:
2464 CHECK(sameArg);
2465 if (std::optional<DynamicType> aType{sameArg->GetType()}) {
2466 if (result.categorySet.test(aType->category())) {
2467 if (const auto *sameChar{UnwrapExpr<Expr<SomeCharacter>>(*sameArg)}) {
2468 if (auto len{ToInt64(Fold(context, sameChar->LEN()))}) {
2469 resultType = DynamicType{aType->kind(), *len};
2470 } else {
2471 resultType = *aType;
2472 }
2473 } else {
2474 resultType = *aType;
2475 }
2476 } else {
2477 resultType = DynamicType{*category, aType->kind()};
2478 }
2479 }
2480 break;
2481 case KindCode::sameKind:
2482 CHECK(sameArg);
2483 if (std::optional<DynamicType> aType{sameArg->GetType()}) {
2484 resultType = DynamicType{*category, aType->kind()};
2485 }
2486 break;
2487 case KindCode::operand:
2488 CHECK(operandArg);
2489 resultType = operandArg->GetType();
2490 CHECK(!resultType || result.categorySet.test(resultType->category()));
2491 break;
2492 case KindCode::effectiveKind:
2493 CHECK(kindDummyArg);
2494 CHECK(result.categorySet == CategorySet{*category});
2495 if (kindArg) {
2496 if (auto *expr{kindArg->UnwrapExpr()}) {
2497 CHECK(expr->Rank() == 0);
2498 if (auto code{ToInt64(Fold(context, common::Clone(*expr)))}) {
2499 if (context.targetCharacteristics().IsTypeEnabled(
2500 *category, *code)) {
2501 if (*category == TypeCategory::Character) { // ACHAR & CHAR
2502 resultType = DynamicType{static_cast<int>(*code), 1};
2503 } else {
2504 resultType = DynamicType{*category, static_cast<int>(*code)};
2505 }
2506 break;
2507 }
2508 }
2509 }
2510 messages.Say(
2511 "'kind=' argument must be a constant scalar integer whose value is a supported kind for the intrinsic result type"_err_en_US);
2512 // use default kind below for error recovery
2513 } else if (kindDummyArg->flags.test(ArgFlag::defaultsToSameKind)) {
2514 CHECK(sameArg);
2515 resultType = *sameArg->GetType();
2516 } else if (kindDummyArg->flags.test(ArgFlag::defaultsToSizeKind)) {
2517 CHECK(*category == TypeCategory::Integer);
2518 resultType =
2519 DynamicType{TypeCategory::Integer, defaults.sizeIntegerKind()};
2520 } else {
2521 CHECK(kindDummyArg->flags.test(ArgFlag::defaultsToDefaultForResult));
2522 }
2523 if (!resultType) {
2524 int kind{defaults.GetDefaultKind(*category)};
2525 if (*category == TypeCategory::Character) { // ACHAR & CHAR
2526 resultType = DynamicType{kind, 1};
2527 } else {
2528 resultType = DynamicType{*category, kind};
2529 }
2530 }
2531 break;
2532 case KindCode::likeMultiply:
2533 CHECK(dummies >= 2);
2534 CHECK(actualForDummy[0]);
2535 CHECK(actualForDummy[1]);
2536 resultType = actualForDummy[0]->GetType()->ResultTypeForMultiply(
2537 *actualForDummy[1]->GetType());
2538 break;
2539 case KindCode::subscript:
2540 CHECK(result.categorySet == IntType);
2541 CHECK(*category == TypeCategory::Integer);
2542 resultType =
2543 DynamicType{TypeCategory::Integer, defaults.subscriptIntegerKind()};
2544 break;
2545 case KindCode::size:
2546 CHECK(result.categorySet == IntType);
2547 CHECK(*category == TypeCategory::Integer);
2548 resultType =
2549 DynamicType{TypeCategory::Integer, defaults.sizeIntegerKind()};
2550 break;
2551 case KindCode::teamType:
2552 CHECK(result.categorySet == DerivedType);
2553 CHECK(*category == TypeCategory::Derived);
2554 resultType = DynamicType{
2555 GetBuiltinDerivedType(builtinsScope, "__builtin_team_type")};
2556 break;
2557 case KindCode::greaterOrEqualToKind:
2558 case KindCode::exactKind:
2559 resultType = DynamicType{*category, result.kindValue};
2560 break;
2561 case KindCode::typeless:
2562 case KindCode::any:
2563 case KindCode::kindArg:
2564 case KindCode::dimArg:
2565 common::die(
2566 "INTERNAL: bad KindCode appears on intrinsic '%s' result", name);
2567 break;
2568 default:
2569 CRASH_NO_CASE;
2570 }
2571 } else {
2572 if (!call.isSubroutineCall) {
2573 return std::nullopt;
2574 }
2575 CHECK(result.kindCode == KindCode::none);
2576 }
2577
2578 // Emit warnings when the syntactic presence of a DIM= argument determines
2579 // the semantics of the call but the associated actual argument may not be
2580 // present at execution time.
2581 if (dimArg) {
2582 std::optional<int> arrayRank;
2583 if (arrayArg) {
2584 arrayRank = arrayArg->Rank();
2585 if (auto dimVal{ToInt64(actualForDummy[*dimArg])}) {
2586 if (*dimVal < 1) {
2587 messages.Say(
2588 "The value of DIM= (%jd) may not be less than 1"_err_en_US,
2589 static_cast<std::intmax_t>(*dimVal));
2590 } else if (*dimVal > *arrayRank) {
2591 messages.Say(
2592 "The value of DIM= (%jd) may not be greater than %d"_err_en_US,
2593 static_cast<std::intmax_t>(*dimVal), *arrayRank);
2594 }
2595 }
2596 }
2597 switch (rank) {
2598 case Rank::dimReduced:
2599 case Rank::dimRemovedOrScalar:
2600 case Rank::locReduced:
2601 case Rank::scalarIfDim:
2602 if (dummy[*dimArg].optionality == Optionality::required) {
2603 if (const Symbol *whole{
2604 UnwrapWholeSymbolOrComponentDataRef(actualForDummy[*dimArg])}) {
2605 if (IsOptional(*whole) || IsAllocatableOrObjectPointer(whole)) {
2606 if (context.languageFeatures().ShouldWarn(
2607 common::UsageWarning::OptionalMustBePresent)) {
2608 if (rank == Rank::scalarIfDim || arrayRank.value_or(-1) == 1) {
2609 messages.Say(common::UsageWarning::OptionalMustBePresent,
2610 "The actual argument for DIM= is optional, pointer, or allocatable, and it is assumed to be present and equal to 1 at execution time"_warn_en_US);
2611 } else {
2612 messages.Say(common::UsageWarning::OptionalMustBePresent,
2613 "The actual argument for DIM= is optional, pointer, or allocatable, and may not be absent during execution; parenthesize to silence this warning"_warn_en_US);
2614 }
2615 }
2616 }
2617 }
2618 }
2619 break;
2620 default:;
2621 }
2622 }
2623
2624 // At this point, the call is acceptable.
2625 // Determine the rank of the function result.
2626 int resultRank{0};
2627 switch (rank) {
2628 case Rank::elemental:
2629 resultRank = elementalRank;
2630 break;
2631 case Rank::scalar:
2632 resultRank = 0;
2633 break;
2634 case Rank::vector:
2635 resultRank = 1;
2636 break;
2637 case Rank::matrix:
2638 resultRank = 2;
2639 break;
2640 case Rank::conformable:
2641 CHECK(arrayArg);
2642 resultRank = arrayArg->Rank();
2643 break;
2644 case Rank::dimReduced:
2645 CHECK(arrayArg);
2646 resultRank = dimArg ? arrayArg->Rank() - 1 : 0;
2647 break;
2648 case Rank::locReduced:
2649 CHECK(arrayArg);
2650 resultRank = dimArg ? arrayArg->Rank() - 1 : 1;
2651 break;
2652 case Rank::rankPlus1:
2653 CHECK(knownArg);
2654 resultRank = knownArg->Rank() + 1;
2655 break;
2656 case Rank::shaped:
2657 CHECK(shapeArgSize);
2658 resultRank = *shapeArgSize;
2659 break;
2660 case Rank::scalarIfDim:
2661 resultRank = dimArg ? 0 : 1;
2662 break;
2663 case Rank::elementalOrBOZ:
2664 case Rank::shape:
2665 case Rank::array:
2666 case Rank::coarray:
2667 case Rank::atom:
2668 case Rank::known:
2669 case Rank::anyOrAssumedRank:
2670 case Rank::arrayOrAssumedRank:
2671 case Rank::reduceOperation:
2672 case Rank::dimRemovedOrScalar:
2673 common::die("INTERNAL: bad Rank code on intrinsic '%s' result", name);
2674 break;
2675 }
2676 CHECK(resultRank >= 0);
2677
2678 // Rearrange the actual arguments into dummy argument order.
2679 ActualArguments rearranged(dummies);
2680 for (std::size_t j{0}; j < dummies; ++j) {
2681 if (ActualArgument *arg{actualForDummy[j]}) {
2682 rearranged[j] = std::move(*arg);
2683 }
2684 }
2685
2686 // Characterize the specific intrinsic procedure.
2687 characteristics::DummyArguments dummyArgs;
2688 std::optional<int> sameDummyArg;
2689
2690 for (std::size_t j{0}; j < dummies; ++j) {
2691 const IntrinsicDummyArgument &d{dummy[std::min(j, dummyArgPatterns - 1)]};
2692 if (const auto &arg{rearranged[j]}) {
2693 if (const Expr<SomeType> *expr{arg->UnwrapExpr()}) {
2694 std::string kw{d.keyword};
2695 if (arg->keyword()) {
2696 kw = arg->keyword()->ToString();
2697 } else if (isMaxMin) {
2698 for (std::size_t k{j + 1};; ++k) {
2699 kw = "a"s + std::to_string(k);
2700 auto iter{std::find_if(dummyArgs.begin(), dummyArgs.end(),
2701 [&kw](const characteristics::DummyArgument &prev) {
2702 return prev.name == kw;
2703 })};
2704 if (iter == dummyArgs.end()) {
2705 break;
2706 }
2707 }
2708 }
2709 if (auto dc{characteristics::DummyArgument::FromActual(std::move(kw),
2710 *expr, context, /*forImplicitInterface=*/false)}) {
2711 if (auto *dummyProc{
2712 std::get_if<characteristics::DummyProcedure>(&dc->u)}) {
2713 // Dummy procedures are never elemental.
2714 dummyProc->procedure.value().attrs.reset(
2715 characteristics::Procedure::Attr::Elemental);
2716 } else if (auto *dummyObject{
2717 std::get_if<characteristics::DummyDataObject>(
2718 &dc->u)}) {
2719 dummyObject->type.set_corank(0);
2720 if (d.flags.test(ArgFlag::onlyConstantInquiry)) {
2721 dummyObject->attrs.set(
2722 characteristics::DummyDataObject::Attr::OnlyIntrinsicInquiry);
2723 }
2724 }
2725 dummyArgs.emplace_back(std::move(*dc));
2726 if (d.typePattern.kindCode == KindCode::same && !sameDummyArg) {
2727 sameDummyArg = j;
2728 }
2729 } else { // error recovery
2730 messages.Say(
2731 "Could not characterize intrinsic function actual argument '%s'"_err_en_US,
2732 expr->AsFortran().c_str());
2733 return std::nullopt;
2734 }
2735 } else {
2736 CHECK(arg->GetAssumedTypeDummy());
2737 dummyArgs.emplace_back(std::string{d.keyword},
2738 characteristics::DummyDataObject{DynamicType::AssumedType()});
2739 }
2740 } else {
2741 // optional argument is absent
2742 CHECK(d.optionality != Optionality::required);
2743 if (d.typePattern.kindCode == KindCode::same) {
2744 dummyArgs.emplace_back(dummyArgs[sameDummyArg.value()]);
2745 } else {
2746 auto category{d.typePattern.categorySet.LeastElement().value()};
2747 if (category == TypeCategory::Derived) {
2748 // TODO: any other built-in derived types used as optional intrinsic
2749 // dummies?
2750 CHECK(d.typePattern.kindCode == KindCode::teamType);
2751 characteristics::TypeAndShape typeAndShape{
2752 GetBuiltinDerivedType(builtinsScope, "__builtin_team_type")};
2753 dummyArgs.emplace_back(std::string{d.keyword},
2754 characteristics::DummyDataObject{std::move(typeAndShape)});
2755 } else {
2756 characteristics::TypeAndShape typeAndShape{
2757 DynamicType{category, defaults.GetDefaultKind(category)}};
2758 dummyArgs.emplace_back(std::string{d.keyword},
2759 characteristics::DummyDataObject{std::move(typeAndShape)});
2760 }
2761 }
2762 dummyArgs.back().SetOptional();
2763 }
2764 dummyArgs.back().SetIntent(d.intent);
2765 }
2766 characteristics::Procedure::Attrs attrs;
2767 if (elementalRank > 0) {
2768 attrs.set(characteristics::Procedure::Attr::Elemental);
2769 }
2770 if (call.isSubroutineCall) {
2771 if (intrinsicClass == IntrinsicClass::pureSubroutine /* MOVE_ALLOC */ ||
2772 intrinsicClass == IntrinsicClass::elementalSubroutine /* MVBITS */) {
2773 attrs.set(characteristics::Procedure::Attr::Pure);
2774 }
2775 return SpecificCall{
2776 SpecificIntrinsic{
2777 name, characteristics::Procedure{std::move(dummyArgs), attrs}},
2778 std::move(rearranged)};
2779 } else {
2780 attrs.set(characteristics::Procedure::Attr::Pure);
2781 characteristics::TypeAndShape typeAndShape{resultType.value(), resultRank};
2782 characteristics::FunctionResult funcResult{std::move(typeAndShape)};
2783 characteristics::Procedure chars{
2784 std::move(funcResult), std::move(dummyArgs), attrs};
2785 return SpecificCall{
2786 SpecificIntrinsic{name, std::move(chars)}, std::move(rearranged)};
2787 }
2788}
2789
2790class IntrinsicProcTable::Implementation {
2791public:
2792 explicit Implementation(const common::IntrinsicTypeDefaultKinds &dfts)
2793 : defaults_{dfts} {
2794 for (const IntrinsicInterface &f : genericIntrinsicFunction) {
2795 genericFuncs_.insert(std::make_pair(std::string{f.name}, &f));
2796 }
2797 for (const std::pair<const char *, const char *> &a : genericAlias) {
2798 aliases_.insert(
2799 std::make_pair(std::string{a.first}, std::string{a.second}));
2800 }
2801 for (const SpecificIntrinsicInterface &f : specificIntrinsicFunction) {
2802 specificFuncs_.insert(std::make_pair(std::string{f.name}, &f));
2803 }
2804 for (const IntrinsicInterface &f : intrinsicSubroutine) {
2805 subroutines_.insert(std::make_pair(std::string{f.name}, &f));
2806 }
2807 }
2808
2809 void SupplyBuiltins(const semantics::Scope &builtins) {
2810 builtinsScope_ = &builtins;
2811 }
2812
2813 bool IsIntrinsic(const std::string &) const;
2814 bool IsIntrinsicFunction(const std::string &) const;
2815 bool IsIntrinsicSubroutine(const std::string &) const;
2816 bool IsDualIntrinsic(const std::string &) const;
2817
2818 IntrinsicClass GetIntrinsicClass(const std::string &) const;
2819 std::string GetGenericIntrinsicName(const std::string &) const;
2820
2821 std::optional<SpecificCall> Probe(
2822 const CallCharacteristics &, ActualArguments &, FoldingContext &) const;
2823
2824 std::optional<SpecificIntrinsicFunctionInterface> IsSpecificIntrinsicFunction(
2825 const std::string &) const;
2826
2827 llvm::raw_ostream &Dump(llvm::raw_ostream &) const;
2828
2829private:
2830 DynamicType GetSpecificType(const TypePattern &) const;
2831 SpecificCall HandleNull(ActualArguments &, FoldingContext &) const;
2832 std::optional<SpecificCall> HandleC_F_Pointer(
2833 ActualArguments &, FoldingContext &) const;
2834 std::optional<SpecificCall> HandleC_Loc(
2835 ActualArguments &, FoldingContext &) const;
2836 std::optional<SpecificCall> HandleC_Devloc(
2837 ActualArguments &, FoldingContext &) const;
2838 const std::string &ResolveAlias(const std::string &name) const {
2839 auto iter{aliases_.find(name)};
2840 return iter == aliases_.end() ? name : iter->second;
2841 }
2842
2843 common::IntrinsicTypeDefaultKinds defaults_;
2844 std::multimap<std::string, const IntrinsicInterface *> genericFuncs_;
2845 std::multimap<std::string, const SpecificIntrinsicInterface *> specificFuncs_;
2846 std::multimap<std::string, const IntrinsicInterface *> subroutines_;
2847 const semantics::Scope *builtinsScope_{nullptr};
2848 std::map<std::string, std::string> aliases_;
2849 semantics::ParamValue assumedLen_{
2850 semantics::ParamValue::Assumed(common::TypeParamAttr::Len)};
2851};
2852
2853bool IntrinsicProcTable::Implementation::IsIntrinsicFunction(
2854 const std::string &name0) const {
2855 const std::string &name{ResolveAlias(name0)};
2856 auto specificRange{specificFuncs_.equal_range(name)};
2857 if (specificRange.first != specificRange.second) {
2858 return true;
2859 }
2860 auto genericRange{genericFuncs_.equal_range(name)};
2861 if (genericRange.first != genericRange.second) {
2862 return true;
2863 }
2864 // special cases
2865 return name == "__builtin_c_loc" || name == "__builtin_c_devloc" ||
2866 name == "null";
2867}
2868bool IntrinsicProcTable::Implementation::IsIntrinsicSubroutine(
2869 const std::string &name0) const {
2870 const std::string &name{ResolveAlias(name0)};
2871 auto subrRange{subroutines_.equal_range(name)};
2872 if (subrRange.first != subrRange.second) {
2873 return true;
2874 }
2875 // special cases
2876 return name == "__builtin_c_f_pointer";
2877}
2878bool IntrinsicProcTable::Implementation::IsIntrinsic(
2879 const std::string &name) const {
2880 return IsIntrinsicFunction(name) || IsIntrinsicSubroutine(name);
2881}
2882bool IntrinsicProcTable::Implementation::IsDualIntrinsic(
2883 const std::string &name) const {
2884 // Collection for some intrinsics with function and subroutine form,
2885 // in order to pass the semantic check.
2886 static const std::string dualIntrinsic[]{{"chdir"}, {"etime"}, {"fseek"},
2887 {"ftell"}, {"getcwd"}, {"hostnm"}, {"putenv"s}, {"rename"}, {"second"},
2888 {"system"}, {"unlink"}};
2889 return llvm::is_contained(dualIntrinsic, name);
2890}
2891
2892IntrinsicClass IntrinsicProcTable::Implementation::GetIntrinsicClass(
2893 const std::string &name) const {
2894 auto specificIntrinsic{specificFuncs_.find(name)};
2895 if (specificIntrinsic != specificFuncs_.end()) {
2896 return specificIntrinsic->second->intrinsicClass;
2897 }
2898 auto genericIntrinsic{genericFuncs_.find(name)};
2899 if (genericIntrinsic != genericFuncs_.end()) {
2900 return genericIntrinsic->second->intrinsicClass;
2901 }
2902 auto subrIntrinsic{subroutines_.find(name)};
2903 if (subrIntrinsic != subroutines_.end()) {
2904 return subrIntrinsic->second->intrinsicClass;
2905 }
2906 return IntrinsicClass::noClass;
2907}
2908
2909std::string IntrinsicProcTable::Implementation::GetGenericIntrinsicName(
2910 const std::string &name) const {
2911 auto specificIntrinsic{specificFuncs_.find(name)};
2912 if (specificIntrinsic != specificFuncs_.end()) {
2913 if (const char *genericName{specificIntrinsic->second->generic}) {
2914 return {genericName};
2915 }
2916 }
2917 return name;
2918}
2919
2920bool CheckAndRearrangeArguments(ActualArguments &arguments,
2921 parser::ContextualMessages &messages, const char *const dummyKeywords[],
2922 std::size_t trailingOptionals) {
2923 std::size_t numDummies{0};
2924 while (dummyKeywords[numDummies]) {
2925 ++numDummies;
2926 }
2927 CHECK(trailingOptionals <= numDummies);
2928 if (arguments.size() > numDummies) {
2929 messages.Say("Too many actual arguments (%zd > %zd)"_err_en_US,
2930 arguments.size(), numDummies);
2931 return false;
2932 }
2933 ActualArguments rearranged(numDummies);
2934 bool anyKeywords{false};
2935 std::size_t position{0};
2936 for (std::optional<ActualArgument> &arg : arguments) {
2937 std::size_t dummyIndex{0};
2938 if (arg && arg->keyword()) {
2939 anyKeywords = true;
2940 for (; dummyIndex < numDummies; ++dummyIndex) {
2941 if (*arg->keyword() == dummyKeywords[dummyIndex]) {
2942 break;
2943 }
2944 }
2945 if (dummyIndex >= numDummies) {
2946 messages.Say(*arg->keyword(),
2947 "Unknown argument keyword '%s='"_err_en_US, *arg->keyword());
2948 return false;
2949 }
2950 } else if (anyKeywords) {
2951 messages.Say(arg ? arg->sourceLocation() : messages.at(),
2952 "A positional actual argument may not appear after any keyword arguments"_err_en_US);
2953 return false;
2954 } else {
2955 dummyIndex = position++;
2956 }
2957 if (rearranged[dummyIndex]) {
2958 messages.Say(arg ? arg->sourceLocation() : messages.at(),
2959 "Dummy argument '%s=' appears more than once"_err_en_US,
2960 dummyKeywords[dummyIndex]);
2961 return false;
2962 }
2963 rearranged[dummyIndex] = std::move(arg);
2964 arg.reset();
2965 }
2966 bool anyMissing{false};
2967 for (std::size_t j{0}; j < numDummies - trailingOptionals; ++j) {
2968 if (!rearranged[j]) {
2969 messages.Say("Dummy argument '%s=' is absent and not OPTIONAL"_err_en_US,
2970 dummyKeywords[j]);
2971 anyMissing = true;
2972 }
2973 }
2974 arguments = std::move(rearranged);
2975 return !anyMissing;
2976}
2977
2978// The NULL() intrinsic is a special case.
2979SpecificCall IntrinsicProcTable::Implementation::HandleNull(
2980 ActualArguments &arguments, FoldingContext &context) const {
2981 static const char *const keywords[]{"mold", nullptr};
2982 if (CheckAndRearrangeArguments(arguments, context.messages(), keywords, 1) &&
2983 arguments[0]) {
2984 Expr<SomeType> *mold{arguments[0]->UnwrapExpr()};
2985 bool isBareNull{IsBareNullPointer(mold)};
2986 if (isBareNull) {
2987 // NULL(NULL()), NULL(NULL(NULL())), &c. are all just NULL()
2988 mold = nullptr;
2989 }
2990 if (mold) {
2991 if (IsAssumedRank(*arguments[0])) {
2992 context.messages().Say(arguments[0]->sourceLocation(),
2993 "MOLD= argument to NULL() must not be assumed-rank"_err_en_US);
2994 }
2995 bool isProcPtrTarget{
2996 IsProcedurePointerTarget(*mold) && !IsNullObjectPointer(mold)};
2997 if (isProcPtrTarget || IsAllocatableOrPointerObject(*mold)) {
2998 characteristics::DummyArguments args;
2999 std::optional<characteristics::FunctionResult> fResult;
3000 bool isAllocatableMold{false};
3001 if (isProcPtrTarget) {
3002 // MOLD= procedure pointer
3003 std::optional<characteristics::Procedure> procPointer;
3004 if (IsNullProcedurePointer(mold)) {
3005 procPointer =
3006 characteristics::Procedure::Characterize(*mold, context);
3007 } else {
3008 const Symbol *last{GetLastSymbol(*mold)};
3009 procPointer =
3010 characteristics::Procedure::Characterize(DEREF(last), context);
3011 }
3012 // procPointer is vacant if there was an error with the analysis
3013 // associated with the procedure pointer
3014 if (procPointer) {
3015 args.emplace_back("mold"s,
3016 characteristics::DummyProcedure{common::Clone(*procPointer)});
3017 fResult.emplace(std::move(*procPointer));
3018 }
3019 } else if (auto type{mold->GetType()}) {
3020 // MOLD= object pointer or allocatable
3021 characteristics::TypeAndShape typeAndShape{
3022 *type, GetShape(context, *mold)};
3023 args.emplace_back(
3024 "mold"s, characteristics::DummyDataObject{typeAndShape});
3025 fResult.emplace(std::move(typeAndShape));
3026 isAllocatableMold = IsAllocatableDesignator(*mold);
3027 } else {
3028 context.messages().Say(arguments[0]->sourceLocation(),
3029 "MOLD= argument to NULL() lacks type"_err_en_US);
3030 }
3031 if (fResult) {
3032 fResult->attrs.set(characteristics::FunctionResult::Attr::Pointer);
3033 characteristics::Procedure::Attrs attrs;
3034 attrs.set(isAllocatableMold
3035 ? characteristics::Procedure::Attr::NullAllocatable
3036 : characteristics::Procedure::Attr::NullPointer);
3037 characteristics::Procedure chars{
3038 std::move(*fResult), std::move(args), attrs};
3039 return SpecificCall{SpecificIntrinsic{"null"s, std::move(chars)},
3040 std::move(arguments)};
3041 }
3042 }
3043 }
3044 if (!isBareNull) {
3045 context.messages().Say(arguments[0]->sourceLocation(),
3046 "MOLD= argument to NULL() must be a pointer or allocatable"_err_en_US);
3047 }
3048 }
3049 characteristics::Procedure::Attrs attrs;
3050 attrs.set(characteristics::Procedure::Attr::NullPointer);
3051 attrs.set(characteristics::Procedure::Attr::Pure);
3052 arguments.clear();
3053 return SpecificCall{
3054 SpecificIntrinsic{"null"s,
3055 characteristics::Procedure{characteristics::DummyArguments{}, attrs}},
3056 std::move(arguments)};
3057}
3058
3059// Subroutine C_F_POINTER(CPTR=,FPTR=[,SHAPE=]) from
3060// intrinsic module ISO_C_BINDING (18.2.3.3)
3061std::optional<SpecificCall>
3062IntrinsicProcTable::Implementation::HandleC_F_Pointer(
3063 ActualArguments &arguments, FoldingContext &context) const {
3064 characteristics::Procedure::Attrs attrs;
3065 attrs.set(characteristics::Procedure::Attr::Subroutine);
3066 static const char *const keywords[]{"cptr", "fptr", "shape", nullptr};
3067 characteristics::DummyArguments dummies;
3068 if (CheckAndRearrangeArguments(arguments, context.messages(), keywords, 1)) {
3069 CHECK(arguments.size() == 3);
3070 if (const auto *expr{arguments[0].value().UnwrapExpr()}) {
3071 // General semantic checks will catch an actual argument that's not
3072 // scalar.
3073 if (auto type{expr->GetType()}) {
3074 if (type->category() != TypeCategory::Derived ||
3075 type->IsPolymorphic() ||
3076 (type->GetDerivedTypeSpec().typeSymbol().name() !=
3077 "__builtin_c_ptr" &&
3078 type->GetDerivedTypeSpec().typeSymbol().name() !=
3079 "__builtin_c_devptr")) {
3080 context.messages().Say(arguments[0]->sourceLocation(),
3081 "CPTR= argument to C_F_POINTER() must be a C_PTR"_err_en_US);
3082 }
3083 characteristics::DummyDataObject cptr{
3084 characteristics::TypeAndShape{*type}};
3085 cptr.intent = common::Intent::In;
3086 dummies.emplace_back("cptr"s, std::move(cptr));
3087 }
3088 }
3089 if (const auto *expr{arguments[1].value().UnwrapExpr()}) {
3090 int fptrRank{expr->Rank()};
3091 auto at{arguments[1]->sourceLocation()};
3092 if (auto type{expr->GetType()}) {
3093 if (type->HasDeferredTypeParameter()) {
3094 context.messages().Say(at,
3095 "FPTR= argument to C_F_POINTER() may not have a deferred type parameter"_err_en_US);
3096 } else if (type->category() == TypeCategory::Derived) {
3097 if (context.languageFeatures().ShouldWarn(
3098 common::UsageWarning::Interoperability) &&
3099 type->IsUnlimitedPolymorphic()) {
3100 context.messages().Say(common::UsageWarning::Interoperability, at,
3101 "FPTR= argument to C_F_POINTER() should not be unlimited polymorphic"_warn_en_US);
3102 } else if (!type->GetDerivedTypeSpec().typeSymbol().attrs().test(
3103 semantics::Attr::BIND_C) &&
3104 context.languageFeatures().ShouldWarn(
3105 common::UsageWarning::Portability)) {
3106 context.messages().Say(common::UsageWarning::Portability, at,
3107 "FPTR= argument to C_F_POINTER() should not have a derived type that is not BIND(C)"_port_en_US);
3108 }
3109 } else if (!IsInteroperableIntrinsicType(
3110 *type, &context.languageFeatures())
3111 .value_or(true)) {
3112 if (type->category() == TypeCategory::Character &&
3113 type->kind() == 1) {
3114 if (context.languageFeatures().ShouldWarn(
3115 common::UsageWarning::CharacterInteroperability)) {
3116 context.messages().Say(
3117 common::UsageWarning::CharacterInteroperability, at,
3118 "FPTR= argument to C_F_POINTER() should not have the non-interoperable character length %s"_warn_en_US,
3119 type->AsFortran());
3120 }
3121 } else if (context.languageFeatures().ShouldWarn(
3122 common::UsageWarning::Interoperability)) {
3123 context.messages().Say(common::UsageWarning::Interoperability, at,
3124 "FPTR= argument to C_F_POINTER() should not have the non-interoperable intrinsic type or kind %s"_warn_en_US,
3125 type->AsFortran());
3126 }
3127 }
3128 if (ExtractCoarrayRef(*expr)) {
3129 context.messages().Say(at,
3130 "FPTR= argument to C_F_POINTER() may not be a coindexed object"_err_en_US);
3131 }
3132 characteristics::DummyDataObject fptr{
3133 characteristics::TypeAndShape{*type, fptrRank}};
3134 fptr.intent = common::Intent::Out;
3135 fptr.attrs.set(characteristics::DummyDataObject::Attr::Pointer);
3136 dummies.emplace_back("fptr"s, std::move(fptr));
3137 } else {
3138 context.messages().Say(
3139 at, "FPTR= argument to C_F_POINTER() must have a type"_err_en_US);
3140 }
3141 if (arguments[2] && fptrRank == 0) {
3142 context.messages().Say(arguments[2]->sourceLocation(),
3143 "SHAPE= argument to C_F_POINTER() may not appear when FPTR= is scalar"_err_en_US);
3144 } else if (!arguments[2] && fptrRank > 0) {
3145 context.messages().Say(
3146 "SHAPE= argument to C_F_POINTER() must appear when FPTR= is an array"_err_en_US);
3147 } else if (arguments[2]) {
3148 if (const auto *argExpr{arguments[2].value().UnwrapExpr()}) {
3149 if (argExpr->Rank() > 1) {
3150 context.messages().Say(arguments[2]->sourceLocation(),
3151 "SHAPE= argument to C_F_POINTER() must be a rank-one array."_err_en_US);
3152 } else if (argExpr->Rank() == 1) {
3153 if (auto constShape{GetConstantShape(context, *argExpr)}) {
3154 if (constShape->At(ConstantSubscripts{1}).ToInt64() != fptrRank) {
3155 context.messages().Say(arguments[2]->sourceLocation(),
3156 "SHAPE= argument to C_F_POINTER() must have size equal to the rank of FPTR="_err_en_US);
3157 }
3158 }
3159 }
3160 }
3161 }
3162 }
3163 }
3164 if (dummies.size() == 2) {
3165 DynamicType shapeType{TypeCategory::Integer, defaults_.sizeIntegerKind()};
3166 if (arguments[2]) {
3167 if (auto type{arguments[2]->GetType()}) {
3168 if (type->category() == TypeCategory::Integer) {
3169 shapeType = *type;
3170 }
3171 }
3172 }
3173 characteristics::DummyDataObject shape{
3174 characteristics::TypeAndShape{shapeType, 1}};
3175 shape.intent = common::Intent::In;
3176 shape.attrs.set(characteristics::DummyDataObject::Attr::Optional);
3177 dummies.emplace_back("shape"s, std::move(shape));
3178 return SpecificCall{
3179 SpecificIntrinsic{"__builtin_c_f_pointer"s,
3180 characteristics::Procedure{std::move(dummies), attrs}},
3181 std::move(arguments)};
3182 } else {
3183 return std::nullopt;
3184 }
3185}
3186
3187// Function C_LOC(X) from intrinsic module ISO_C_BINDING (18.2.3.6)
3188std::optional<SpecificCall> IntrinsicProcTable::Implementation::HandleC_Loc(
3189 ActualArguments &arguments, FoldingContext &context) const {
3190 static const char *const keywords[]{"x", nullptr};
3191 if (CheckAndRearrangeArguments(arguments, context.messages(), keywords)) {
3192 CHECK(arguments.size() == 1);
3193 CheckForCoindexedObject(context.messages(), arguments[0], "c_loc", "x");
3194 const auto *expr{arguments[0].value().UnwrapExpr()};
3195 if (expr &&
3196 !(IsObjectPointer(*expr) ||
3197 (IsVariable(*expr) && GetLastTarget(GetSymbolVector(*expr))))) {
3198 context.messages().Say(arguments[0]->sourceLocation(),
3199 "C_LOC() argument must be a data pointer or target"_err_en_US);
3200 }
3201 if (auto typeAndShape{characteristics::TypeAndShape::Characterize(
3202 arguments[0], context)}) {
3203 if (expr && !IsContiguous(*expr, context).value_or(true)) {
3204 context.messages().Say(arguments[0]->sourceLocation(),
3205 "C_LOC() argument must be contiguous"_err_en_US);
3206 }
3207 if (auto constExtents{AsConstantExtents(context, typeAndShape->shape())};
3208 constExtents && GetSize(*constExtents) == 0) {
3209 context.messages().Say(arguments[0]->sourceLocation(),
3210 "C_LOC() argument may not be a zero-sized array"_err_en_US);
3211 }
3212 if (!(typeAndShape->type().category() != TypeCategory::Derived ||
3213 typeAndShape->type().IsAssumedType() ||
3214 (!typeAndShape->type().IsPolymorphic() &&
3215 CountNonConstantLenParameters(
3216 typeAndShape->type().GetDerivedTypeSpec()) == 0))) {
3217 context.messages().Say(arguments[0]->sourceLocation(),
3218 "C_LOC() argument must have an intrinsic type, assumed type, or non-polymorphic derived type with no non-constant length parameter"_err_en_US);
3219 } else if (typeAndShape->type().knownLength().value_or(1) == 0) {
3220 context.messages().Say(arguments[0]->sourceLocation(),
3221 "C_LOC() argument may not be zero-length character"_err_en_US);
3222 } else if (typeAndShape->type().category() != TypeCategory::Derived &&
3223 !IsInteroperableIntrinsicType(typeAndShape->type()).value_or(true)) {
3224 if (typeAndShape->type().category() == TypeCategory::Character &&
3225 typeAndShape->type().kind() == 1) {
3226 // Default character kind, but length is not known to be 1
3227 if (context.languageFeatures().ShouldWarn(
3228 common::UsageWarning::CharacterInteroperability)) {
3229 context.messages().Say(
3230 common::UsageWarning::CharacterInteroperability,
3231 arguments[0]->sourceLocation(),
3232 "C_LOC() argument has non-interoperable character length"_warn_en_US);
3233 }
3234 } else if (context.languageFeatures().ShouldWarn(
3235 common::UsageWarning::Interoperability)) {
3236 context.messages().Say(common::UsageWarning::Interoperability,
3237 arguments[0]->sourceLocation(),
3238 "C_LOC() argument has non-interoperable intrinsic type or kind"_warn_en_US);
3239 }
3240 }
3241
3242 characteristics::DummyDataObject ddo{std::move(*typeAndShape)};
3243 ddo.intent = common::Intent::In;
3244 return SpecificCall{
3245 SpecificIntrinsic{"__builtin_c_loc"s,
3246 characteristics::Procedure{
3247 characteristics::FunctionResult{
3248 DynamicType{GetBuiltinDerivedType(
3249 builtinsScope_, "__builtin_c_ptr")}},
3250 characteristics::DummyArguments{
3251 characteristics::DummyArgument{"x"s, std::move(ddo)}},
3252 characteristics::Procedure::Attrs{
3253 characteristics::Procedure::Attr::Pure}}},
3254 std::move(arguments)};
3255 }
3256 }
3257 return std::nullopt;
3258}
3259
3260// CUDA Fortran C_DEVLOC(x)
3261std::optional<SpecificCall> IntrinsicProcTable::Implementation::HandleC_Devloc(
3262 ActualArguments &arguments, FoldingContext &context) const {
3263 static const char *const keywords[]{"cptr", nullptr};
3264
3265 if (CheckAndRearrangeArguments(arguments, context.messages(), keywords)) {
3266 CHECK(arguments.size() == 1);
3267 const auto *expr{arguments[0].value().UnwrapExpr()};
3268 if (auto typeAndShape{characteristics::TypeAndShape::Characterize(
3269 arguments[0], context)}) {
3270 if (expr && !IsContiguous(*expr, context).value_or(true)) {
3271 context.messages().Say(arguments[0]->sourceLocation(),
3272 "C_DEVLOC() argument must be contiguous"_err_en_US);
3273 }
3274 if (auto constExtents{AsConstantExtents(context, typeAndShape->shape())};
3275 constExtents && GetSize(*constExtents) == 0) {
3276 context.messages().Say(arguments[0]->sourceLocation(),
3277 "C_DEVLOC() argument may not be a zero-sized array"_err_en_US);
3278 }
3279 if (!(typeAndShape->type().category() != TypeCategory::Derived ||
3280 typeAndShape->type().IsAssumedType() ||
3281 (!typeAndShape->type().IsPolymorphic() &&
3282 CountNonConstantLenParameters(
3283 typeAndShape->type().GetDerivedTypeSpec()) == 0))) {
3284 context.messages().Say(arguments[0]->sourceLocation(),
3285 "C_DEVLOC() argument must have an intrinsic type, assumed type, or non-polymorphic derived type with no non-constant length parameter"_err_en_US);
3286 } else if (typeAndShape->type().knownLength().value_or(1) == 0) {
3287 context.messages().Say(arguments[0]->sourceLocation(),
3288 "C_DEVLOC() argument may not be zero-length character"_err_en_US);
3289 } else if (typeAndShape->type().category() != TypeCategory::Derived &&
3290 !IsInteroperableIntrinsicType(typeAndShape->type()).value_or(true)) {
3291 if (typeAndShape->type().category() == TypeCategory::Character &&
3292 typeAndShape->type().kind() == 1) {
3293 // Default character kind, but length is not known to be 1
3294 if (context.languageFeatures().ShouldWarn(
3295 common::UsageWarning::CharacterInteroperability)) {
3296 context.messages().Say(
3297 common::UsageWarning::CharacterInteroperability,
3298 arguments[0]->sourceLocation(),
3299 "C_DEVLOC() argument has non-interoperable character length"_warn_en_US);
3300 }
3301 } else if (context.languageFeatures().ShouldWarn(
3302 common::UsageWarning::Interoperability)) {
3303 context.messages().Say(common::UsageWarning::Interoperability,
3304 arguments[0]->sourceLocation(),
3305 "C_DEVLOC() argument has non-interoperable intrinsic type or kind"_warn_en_US);
3306 }
3307 }
3308
3309 characteristics::DummyDataObject ddo{std::move(*typeAndShape)};
3310 ddo.intent = common::Intent::In;
3311 return SpecificCall{
3312 SpecificIntrinsic{"__builtin_c_devloc"s,
3313 characteristics::Procedure{
3314 characteristics::FunctionResult{
3315 DynamicType{GetBuiltinDerivedType(
3316 builtinsScope_, "__builtin_c_devptr")}},
3317 characteristics::DummyArguments{
3318 characteristics::DummyArgument{"cptr"s, std::move(ddo)}},
3319 characteristics::Procedure::Attrs{
3320 characteristics::Procedure::Attr::Pure}}},
3321 std::move(arguments)};
3322 }
3323 }
3324 return std::nullopt;
3325}
3326
3327static bool CheckForNonPositiveValues(FoldingContext &context,
3328 const ActualArgument &arg, const std::string &procName,
3329 const std::string &argName) {
3330 bool ok{true};
3331 if (arg.Rank() > 0) {
3332 if (const Expr<SomeType> *expr{arg.UnwrapExpr()}) {
3333 if (const auto *intExpr{std::get_if<Expr<SomeInteger>>(&expr->u)}) {
3334 Fortran::common::visit(
3335 [&](const auto &kindExpr) {
3336 using IntType = typename std::decay_t<decltype(kindExpr)>::Result;
3337 if (const auto *constArray{
3338 UnwrapConstantValue<IntType>(kindExpr)}) {
3339 for (std::size_t j{0}; j < constArray->size(); ++j) {
3340 auto arrayExpr{constArray->values().at(j)};
3341 if (arrayExpr.IsNegative() || arrayExpr.IsZero()) {
3342 ok = false;
3343 context.messages().Say(arg.sourceLocation(),
3344 "'%s=' argument for intrinsic '%s' must contain all positive values"_err_en_US,
3345 argName, procName);
3346 }
3347 }
3348 }
3349 },
3350 intExpr->u);
3351 }
3352 }
3353 } else {
3354 if (auto val{ToInt64(arg.UnwrapExpr())}) {
3355 if (*val <= 0) {
3356 ok = false;
3357 context.messages().Say(arg.sourceLocation(),
3358 "'%s=' argument for intrinsic '%s' must be a positive value, but is %jd"_err_en_US,
3359 argName, procName, static_cast<std::intmax_t>(*val));
3360 }
3361 }
3362 }
3363 return ok;
3364}
3365
3366static bool CheckAtomicDefineAndRef(FoldingContext &context,
3367 const std::optional<ActualArgument> &atomArg,
3368 const std::optional<ActualArgument> &valueArg,
3369 const std::optional<ActualArgument> &statArg, const std::string &procName) {
3370 bool sameType{true};
3371 if (valueArg && atomArg) {
3372 // for atomic_define and atomic_ref, 'value' arg must be the same type as
3373 // 'atom', but it doesn't have to be the same kind
3374 if (valueArg->GetType()->category() != atomArg->GetType()->category()) {
3375 sameType = false;
3376 context.messages().Say(valueArg->sourceLocation(),
3377 "'value=' argument to '%s' must have same type as 'atom=', but is '%s'"_err_en_US,
3378 procName, valueArg->GetType()->AsFortran());
3379 }
3380 }
3381
3382 return sameType &&
3383 CheckForCoindexedObject(context.messages(), statArg, procName, "stat");
3384}
3385
3386// Applies any semantic checks peculiar to an intrinsic.
3387// TODO: Move the rest of these checks to Semantics/check-call.cpp.
3388static bool ApplySpecificChecks(SpecificCall &call, FoldingContext &context) {
3389 bool ok{true};
3390 const std::string &name{call.specificIntrinsic.name};
3391 if (name == "allocated") {
3392 const auto &arg{call.arguments[0]};
3393 if (arg) {
3394 if (const auto *expr{arg->UnwrapExpr()}) {
3395 ok = IsAllocatableDesignator(*expr) || IsNullAllocatable(expr);
3396 }
3397 }
3398 if (!ok) {
3399 context.messages().Say(
3400 arg ? arg->sourceLocation() : context.messages().at(),
3401 "Argument of ALLOCATED() must be an ALLOCATABLE object or component"_err_en_US);
3402 }
3403 } else if (name == "atomic_add" || name == "atomic_and" ||
3404 name == "atomic_or" || name == "atomic_xor" || name == "event_query") {
3405 return CheckForCoindexedObject(
3406 context.messages(), call.arguments[2], name, "stat");
3407 } else if (name == "atomic_cas") {
3408 return CheckForCoindexedObject(
3409 context.messages(), call.arguments[4], name, "stat");
3410 } else if (name == "atomic_define") {
3411 return CheckAtomicDefineAndRef(
3412 context, call.arguments[0], call.arguments[1], call.arguments[2], name);
3413 } else if (name == "atomic_fetch_add" || name == "atomic_fetch_and" ||
3414 name == "atomic_fetch_or" || name == "atomic_fetch_xor") {
3415 return CheckForCoindexedObject(
3416 context.messages(), call.arguments[3], name, "stat");
3417 } else if (name == "atomic_ref") {
3418 return CheckAtomicDefineAndRef(
3419 context, call.arguments[1], call.arguments[0], call.arguments[2], name);
3420 } else if (name == "co_broadcast" || name == "co_max" || name == "co_min" ||
3421 name == "co_sum") {
3422 bool aOk{CheckForCoindexedObject(
3423 context.messages(), call.arguments[0], name, "a")};
3424 bool statOk{CheckForCoindexedObject(
3425 context.messages(), call.arguments[2], name, "stat")};
3426 bool errmsgOk{CheckForCoindexedObject(
3427 context.messages(), call.arguments[3], name, "errmsg")};
3428 ok = aOk && statOk && errmsgOk;
3429 } else if (name == "image_status") {
3430 if (const auto &arg{call.arguments[0]}) {
3431 ok = CheckForNonPositiveValues(context, *arg, name, "image");
3432 }
3433 } else if (name == "loc") {
3434 const auto &arg{call.arguments[0]};
3435 ok =
3436 arg && (arg->GetAssumedTypeDummy() || GetLastSymbol(arg->UnwrapExpr()));
3437 if (!ok) {
3438 context.messages().Say(
3439 arg ? arg->sourceLocation() : context.messages().at(),
3440 "Argument of LOC() must be an object or procedure"_err_en_US);
3441 }
3442 }
3443 return ok;
3444}
3445
3446static DynamicType GetReturnType(const SpecificIntrinsicInterface &interface,
3447 const common::IntrinsicTypeDefaultKinds &defaults) {
3448 TypeCategory category{TypeCategory::Integer};
3449 switch (interface.result.kindCode) {
3450 case KindCode::defaultIntegerKind:
3451 break;
3452 case KindCode::doublePrecision:
3453 case KindCode::quadPrecision:
3454 case KindCode::defaultRealKind:
3455 category = TypeCategory::Real;
3456 break;
3457 default:
3458 CRASH_NO_CASE;
3459 }
3460 int kind{interface.result.kindCode == KindCode::doublePrecision
3461 ? defaults.doublePrecisionKind()
3462 : interface.result.kindCode == KindCode::quadPrecision
3463 ? defaults.quadPrecisionKind()
3464 : defaults.GetDefaultKind(category)};
3465 return DynamicType{category, kind};
3466}
3467
3468// Probe the configured intrinsic procedure pattern tables in search of a
3469// match for a given procedure reference.
3470std::optional<SpecificCall> IntrinsicProcTable::Implementation::Probe(
3471 const CallCharacteristics &call, ActualArguments &arguments,
3472 FoldingContext &context) const {
3473
3474 // All special cases handled here before the table probes below must
3475 // also be recognized as special names in IsIntrinsicSubroutine().
3476 if (call.isSubroutineCall) {
3477 if (call.name == "__builtin_c_f_pointer") {
3478 return HandleC_F_Pointer(arguments, context);
3479 } else if (call.name == "random_seed") {
3480 int optionalCount{0};
3481 for (const auto &arg : arguments) {
3482 if (const auto *expr{arg->UnwrapExpr()}) {
3483 optionalCount +=
3484 Fortran::evaluate::MayBePassedAsAbsentOptional(*expr);
3485 }
3486 }
3487 if (arguments.size() - optionalCount > 1) {
3488 context.messages().Say(
3489 "RANDOM_SEED must have either 1 or no arguments"_err_en_US);
3490 }
3491 }
3492 } else { // function
3493 if (call.name == "__builtin_c_loc") {
3494 return HandleC_Loc(arguments, context);
3495 } else if (call.name == "__builtin_c_devloc") {
3496 return HandleC_Devloc(arguments, context);
3497 } else if (call.name == "null") {
3498 return HandleNull(arguments, context);
3499 }
3500 }
3501
3502 if (call.isSubroutineCall) {
3503 const std::string &name{ResolveAlias(call.name)};
3504 auto subrRange{subroutines_.equal_range(name)};
3505 for (auto iter{subrRange.first}; iter != subrRange.second; ++iter) {
3506 if (auto specificCall{iter->second->Match(
3507 call, defaults_, arguments, context, builtinsScope_)}) {
3508 ApplySpecificChecks(*specificCall, context);
3509 return specificCall;
3510 }
3511 }
3512 if (IsIntrinsicFunction(call.name) && !IsDualIntrinsic(call.name)) {
3513 context.messages().Say(
3514 "Cannot use intrinsic function '%s' as a subroutine"_err_en_US,
3515 call.name);
3516 }
3517 return std::nullopt;
3518 }
3519
3520 // Helper to avoid emitting errors before it is sure there is no match
3521 parser::Messages localBuffer;
3522 parser::Messages *finalBuffer{context.messages().messages()};
3523 parser::ContextualMessages localMessages{
3524 context.messages().at(), finalBuffer ? &localBuffer : nullptr};
3525 FoldingContext localContext{context, localMessages};
3526 auto matchOrBufferMessages{
3527 [&](const IntrinsicInterface &intrinsic,
3528 parser::Messages &buffer) -> std::optional<SpecificCall> {
3529 if (auto specificCall{intrinsic.Match(
3530 call, defaults_, arguments, localContext, builtinsScope_)}) {
3531 if (finalBuffer) {
3532 finalBuffer->Annex(std::move(localBuffer));
3533 }
3534 return specificCall;
3535 } else if (buffer.empty()) {
3536 buffer.Annex(std::move(localBuffer));
3537 } else {
3538 // When there are multiple entries in the table for an
3539 // intrinsic that has multiple forms depending on the
3540 // presence of DIM=, use messages from a later entry if
3541 // the messages from an earlier entry complain about the
3542 // DIM= argument and it wasn't specified with a keyword.
3543 for (const auto &m : buffer.messages()) {
3544 if (m.ToString().find("'dim='") != std::string::npos) {
3545 bool hadDimKeyword{false};
3546 for (const auto &a : arguments) {
3547 if (a) {
3548 if (auto kw{a->keyword()}; kw && kw == "dim") {
3549 hadDimKeyword = true;
3550 break;
3551 }
3552 }
3553 }
3554 if (!hadDimKeyword) {
3555 buffer = std::move(localBuffer);
3556 }
3557 break;
3558 }
3559 }
3560 localBuffer.clear();
3561 }
3562 return std::nullopt;
3563 }};
3564
3565 // Probe the generic intrinsic function table first; allow for
3566 // the use of a legacy alias.
3567 parser::Messages genericBuffer;
3568 const std::string &name{ResolveAlias(call.name)};
3569 auto genericRange{genericFuncs_.equal_range(name)};
3570 for (auto iter{genericRange.first}; iter != genericRange.second; ++iter) {
3571 if (auto specificCall{
3572 matchOrBufferMessages(*iter->second, genericBuffer)}) {
3573 ApplySpecificChecks(*specificCall, context);
3574 return specificCall;
3575 }
3576 }
3577
3578 // Probe the specific intrinsic function table next.
3579 parser::Messages specificBuffer;
3580 auto specificRange{specificFuncs_.equal_range(call.name)};
3581 for (auto specIter{specificRange.first}; specIter != specificRange.second;
3582 ++specIter) {
3583 // We only need to check the cases with distinct generic names.
3584 if (const char *genericName{specIter->second->generic}) {
3585 if (auto specificCall{
3586 matchOrBufferMessages(*specIter->second, specificBuffer)}) {
3587 if (!specIter->second->useGenericAndForceResultType) {
3588 specificCall->specificIntrinsic.name = genericName;
3589 }
3590 specificCall->specificIntrinsic.isRestrictedSpecific =
3591 specIter->second->isRestrictedSpecific;
3592 // TODO test feature AdditionalIntrinsics, warn on nonstandard
3593 // specifics with DoublePrecisionComplex arguments.
3594 return specificCall;
3595 }
3596 }
3597 }
3598
3599 // If there was no exact match with a specific, try to match the related
3600 // generic and convert the result to the specific required type.
3601 if (context.languageFeatures().IsEnabled(common::LanguageFeature::
3602 UseGenericIntrinsicWhenSpecificDoesntMatch)) {
3603 for (auto specIter{specificRange.first}; specIter != specificRange.second;
3604 ++specIter) {
3605 // We only need to check the cases with distinct generic names.
3606 if (const char *genericName{specIter->second->generic}) {
3607 if (specIter->second->useGenericAndForceResultType) {
3608 auto genericRange{genericFuncs_.equal_range(genericName)};
3609 for (auto genIter{genericRange.first}; genIter != genericRange.second;
3610 ++genIter) {
3611 if (auto specificCall{
3612 matchOrBufferMessages(*genIter->second, specificBuffer)}) {
3613 // Force the call result type to the specific intrinsic result
3614 // type, if possible.
3615 DynamicType genericType{
3616 DEREF(specificCall->specificIntrinsic.characteristics.value()
3617 .functionResult.value()
3618 .GetTypeAndShape())
3619 .type()};
3620 DynamicType newType{GetReturnType(*specIter->second, defaults_)};
3621 if (genericType.category() == newType.category() ||
3622 ((genericType.category() == TypeCategory::Integer ||
3623 genericType.category() == TypeCategory::Real) &&
3624 (newType.category() == TypeCategory::Integer ||
3625 newType.category() == TypeCategory::Real))) {
3626 if (context.languageFeatures().ShouldWarn(
3627 common::LanguageFeature::
3628 UseGenericIntrinsicWhenSpecificDoesntMatch)) {
3629 context.messages().Say(
3630 common::LanguageFeature::
3631 UseGenericIntrinsicWhenSpecificDoesntMatch,
3632 "Argument types do not match specific intrinsic '%s' requirements; using '%s' generic instead and converting the result to %s if needed"_port_en_US,
3633 call.name, genericName, newType.AsFortran());
3634 }
3635 specificCall->specificIntrinsic.name = call.name;
3636 specificCall->specificIntrinsic.characteristics.value()
3637 .functionResult.value()
3638 .SetType(newType);
3639 return specificCall;
3640 }
3641 }
3642 }
3643 }
3644 }
3645 }
3646 }
3647
3648 if (specificBuffer.empty() && genericBuffer.empty() &&
3649 IsIntrinsicSubroutine(call.name) && !IsDualIntrinsic(call.name)) {
3650 context.messages().Say(
3651 "Cannot use intrinsic subroutine '%s' as a function"_err_en_US,
3652 call.name);
3653 }
3654
3655 // No match; report the right errors, if any
3656 if (finalBuffer) {
3657 if (specificBuffer.empty()) {
3658 finalBuffer->Annex(std::move(genericBuffer));
3659 } else {
3660 finalBuffer->Annex(std::move(specificBuffer));
3661 }
3662 }
3663 return std::nullopt;
3664}
3665
3666std::optional<SpecificIntrinsicFunctionInterface>
3667IntrinsicProcTable::Implementation::IsSpecificIntrinsicFunction(
3668 const std::string &name) const {
3669 auto specificRange{specificFuncs_.equal_range(name)};
3670 for (auto iter{specificRange.first}; iter != specificRange.second; ++iter) {
3671 const SpecificIntrinsicInterface &specific{*iter->second};
3672 std::string genericName{name};
3673 if (specific.generic) {
3674 genericName = std::string(specific.generic);
3675 }
3676 characteristics::FunctionResult fResult{GetSpecificType(specific.result)};
3677 characteristics::DummyArguments args;
3678 int dummies{specific.CountArguments()};
3679 for (int j{0}; j < dummies; ++j) {
3680 characteristics::DummyDataObject dummy{
3681 GetSpecificType(specific.dummy[j].typePattern)};
3682 dummy.intent = specific.dummy[j].intent;
3683 args.emplace_back(
3684 std::string{specific.dummy[j].keyword}, std::move(dummy));
3685 }
3686 characteristics::Procedure::Attrs attrs;
3687 attrs.set(characteristics::Procedure::Attr::Pure)
3688 .set(characteristics::Procedure::Attr::Elemental);
3689 characteristics::Procedure chars{
3690 std::move(fResult), std::move(args), attrs};
3691 return SpecificIntrinsicFunctionInterface{
3692 std::move(chars), genericName, specific.isRestrictedSpecific};
3693 }
3694 return std::nullopt;
3695}
3696
3697DynamicType IntrinsicProcTable::Implementation::GetSpecificType(
3698 const TypePattern &pattern) const {
3699 const CategorySet &set{pattern.categorySet};
3700 CHECK(set.count() == 1);
3701 TypeCategory category{set.LeastElement().value()};
3702 if (pattern.kindCode == KindCode::doublePrecision) {
3703 return DynamicType{category, defaults_.doublePrecisionKind()};
3704 } else if (pattern.kindCode == KindCode::quadPrecision) {
3705 return DynamicType{category, defaults_.quadPrecisionKind()};
3706 } else if (category == TypeCategory::Character) {
3707 // All character arguments to specific intrinsic functions are
3708 // assumed-length.
3709 return DynamicType{defaults_.GetDefaultKind(category), assumedLen_};
3710 } else {
3711 return DynamicType{category, defaults_.GetDefaultKind(category)};
3712 }
3713}
3714
3715IntrinsicProcTable::~IntrinsicProcTable() = default;
3716
3717IntrinsicProcTable IntrinsicProcTable::Configure(
3718 const common::IntrinsicTypeDefaultKinds &defaults) {
3719 IntrinsicProcTable result;
3720 result.impl_ = std::make_unique<IntrinsicProcTable::Implementation>(defaults);
3721 return result;
3722}
3723
3724void IntrinsicProcTable::SupplyBuiltins(
3725 const semantics::Scope &builtins) const {
3726 DEREF(impl_.get()).SupplyBuiltins(builtins);
3727}
3728
3729bool IntrinsicProcTable::IsIntrinsic(const std::string &name) const {
3730 return DEREF(impl_.get()).IsIntrinsic(name);
3731}
3732bool IntrinsicProcTable::IsIntrinsicFunction(const std::string &name) const {
3733 return DEREF(impl_.get()).IsIntrinsicFunction(name);
3734}
3735bool IntrinsicProcTable::IsIntrinsicSubroutine(const std::string &name) const {
3736 return DEREF(impl_.get()).IsIntrinsicSubroutine(name);
3737}
3738
3739IntrinsicClass IntrinsicProcTable::GetIntrinsicClass(
3740 const std::string &name) const {
3741 return DEREF(impl_.get()).GetIntrinsicClass(name);
3742}
3743
3744std::string IntrinsicProcTable::GetGenericIntrinsicName(
3745 const std::string &name) const {
3746 return DEREF(impl_.get()).GetGenericIntrinsicName(name);
3747}
3748
3749std::optional<SpecificCall> IntrinsicProcTable::Probe(
3750 const CallCharacteristics &call, ActualArguments &arguments,
3751 FoldingContext &context) const {
3752 return DEREF(impl_.get()).Probe(call, arguments, context);
3753}
3754
3755std::optional<SpecificIntrinsicFunctionInterface>
3756IntrinsicProcTable::IsSpecificIntrinsicFunction(const std::string &name) const {
3757 return DEREF(impl_.get()).IsSpecificIntrinsicFunction(name);
3758}
3759
3760llvm::raw_ostream &TypePattern::Dump(llvm::raw_ostream &o) const {
3761 if (categorySet == AnyType) {
3762 o << "any type";
3763 } else {
3764 const char *sep = "";
3765 auto set{categorySet};
3766 while (auto least{set.LeastElement()}) {
3767 o << sep << EnumToString(*least);
3768 sep = " or ";
3769 set.reset(*least);
3770 }
3771 }
3772 o << '(' << EnumToString(kindCode) << ')';
3773 return o;
3774}
3775
3776llvm::raw_ostream &IntrinsicDummyArgument::Dump(llvm::raw_ostream &o) const {
3777 if (keyword) {
3778 o << keyword << '=';
3779 }
3780 return typePattern.Dump(o)
3781 << ' ' << EnumToString(rank) << ' ' << EnumToString(optionality)
3782 << EnumToString(intent);
3783}
3784
3785llvm::raw_ostream &IntrinsicInterface::Dump(llvm::raw_ostream &o) const {
3786 o << name;
3787 char sep{'('};
3788 for (const auto &d : dummy) {
3789 if (d.typePattern.kindCode == KindCode::none) {
3790 break;
3791 }
3792 d.Dump(o << sep);
3793 sep = ',';
3794 }
3795 if (sep == '(') {
3796 o << "()";
3797 }
3798 return result.Dump(o << " -> ") << ' ' << EnumToString(rank);
3799}
3800
3801llvm::raw_ostream &IntrinsicProcTable::Implementation::Dump(
3802 llvm::raw_ostream &o) const {
3803 o << "generic intrinsic functions:\n";
3804 for (const auto &iter : genericFuncs_) {
3805 iter.second->Dump(o << iter.first << ": ") << '\n';
3806 }
3807 o << "specific intrinsic functions:\n";
3808 for (const auto &iter : specificFuncs_) {
3809 iter.second->Dump(o << iter.first << ": ");
3810 if (const char *g{iter.second->generic}) {
3811 o << " -> " << g;
3812 }
3813 o << '\n';
3814 }
3815 o << "subroutines:\n";
3816 for (const auto &iter : subroutines_) {
3817 iter.second->Dump(o << iter.first << ": ") << '\n';
3818 }
3819 return o;
3820}
3821
3822llvm::raw_ostream &IntrinsicProcTable::Dump(llvm::raw_ostream &o) const {
3823 return DEREF(impl_.get()).Dump(o);
3824}
3825
3826// In general C846 prohibits allocatable coarrays to be passed to INTENT(OUT)
3827// dummy arguments. This rule does not apply to intrinsics in general.
3828// Some intrinsic explicitly allow coarray allocatable in their description.
3829// It is assumed that unless explicitly allowed for an intrinsic,
3830// this is forbidden.
3831// Since there are very few intrinsic identified that allow this, they are
3832// listed here instead of adding a field in the table.
3833bool AcceptsIntentOutAllocatableCoarray(const std::string &intrinsic) {
3834 return intrinsic == "move_alloc";
3835}
3836} // namespace Fortran::evaluate
3837

source code of flang/lib/Evaluate/intrinsics.cpp