1 | //===- BuildLibCalls.cpp - Utility builder for libcalls -------------------===// |
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 | // This file implements some functions that will create standard C libcalls. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #include "llvm/Transforms/Utils/BuildLibCalls.h" |
14 | #include "llvm/ADT/SmallString.h" |
15 | #include "llvm/ADT/Statistic.h" |
16 | #include "llvm/Analysis/MemoryBuiltins.h" |
17 | #include "llvm/Analysis/TargetLibraryInfo.h" |
18 | #include "llvm/IR/Argument.h" |
19 | #include "llvm/IR/CallingConv.h" |
20 | #include "llvm/IR/Constants.h" |
21 | #include "llvm/IR/DataLayout.h" |
22 | #include "llvm/IR/Function.h" |
23 | #include "llvm/IR/IRBuilder.h" |
24 | #include "llvm/IR/Module.h" |
25 | #include "llvm/IR/Type.h" |
26 | #include "llvm/Support/TypeSize.h" |
27 | #include <optional> |
28 | |
29 | using namespace llvm; |
30 | |
31 | #define DEBUG_TYPE "build-libcalls" |
32 | |
33 | //- Infer Attributes ---------------------------------------------------------// |
34 | |
35 | STATISTIC(NumReadNone, "Number of functions inferred as readnone" ); |
36 | STATISTIC(NumInaccessibleMemOnly, |
37 | "Number of functions inferred as inaccessiblememonly" ); |
38 | STATISTIC(NumReadOnly, "Number of functions inferred as readonly" ); |
39 | STATISTIC(NumWriteOnly, "Number of functions inferred as writeonly" ); |
40 | STATISTIC(NumArgMemOnly, "Number of functions inferred as argmemonly" ); |
41 | STATISTIC(NumInaccessibleMemOrArgMemOnly, |
42 | "Number of functions inferred as inaccessiblemem_or_argmemonly" ); |
43 | STATISTIC(NumNoUnwind, "Number of functions inferred as nounwind" ); |
44 | STATISTIC(NumNoCapture, "Number of arguments inferred as nocapture" ); |
45 | STATISTIC(NumWriteOnlyArg, "Number of arguments inferred as writeonly" ); |
46 | STATISTIC(NumReadOnlyArg, "Number of arguments inferred as readonly" ); |
47 | STATISTIC(NumNoAlias, "Number of function returns inferred as noalias" ); |
48 | STATISTIC(NumNoUndef, "Number of function returns inferred as noundef returns" ); |
49 | STATISTIC(NumReturnedArg, "Number of arguments inferred as returned" ); |
50 | STATISTIC(NumWillReturn, "Number of functions inferred as willreturn" ); |
51 | |
52 | static bool setDoesNotAccessMemory(Function &F) { |
53 | if (F.doesNotAccessMemory()) |
54 | return false; |
55 | F.setDoesNotAccessMemory(); |
56 | ++NumReadNone; |
57 | return true; |
58 | } |
59 | |
60 | static bool setOnlyAccessesInaccessibleMemory(Function &F) { |
61 | if (F.onlyAccessesInaccessibleMemory()) |
62 | return false; |
63 | F.setOnlyAccessesInaccessibleMemory(); |
64 | ++NumInaccessibleMemOnly; |
65 | return true; |
66 | } |
67 | |
68 | static bool setOnlyReadsMemory(Function &F) { |
69 | if (F.onlyReadsMemory()) |
70 | return false; |
71 | F.setOnlyReadsMemory(); |
72 | ++NumReadOnly; |
73 | return true; |
74 | } |
75 | |
76 | static bool setOnlyWritesMemory(Function &F) { |
77 | if (F.onlyWritesMemory()) // writeonly or readnone |
78 | return false; |
79 | ++NumWriteOnly; |
80 | F.setOnlyWritesMemory(); |
81 | return true; |
82 | } |
83 | |
84 | static bool setOnlyAccessesArgMemory(Function &F) { |
85 | if (F.onlyAccessesArgMemory()) |
86 | return false; |
87 | F.setOnlyAccessesArgMemory(); |
88 | ++NumArgMemOnly; |
89 | return true; |
90 | } |
91 | |
92 | static bool setOnlyAccessesInaccessibleMemOrArgMem(Function &F) { |
93 | if (F.onlyAccessesInaccessibleMemOrArgMem()) |
94 | return false; |
95 | F.setOnlyAccessesInaccessibleMemOrArgMem(); |
96 | ++NumInaccessibleMemOrArgMemOnly; |
97 | return true; |
98 | } |
99 | |
100 | static bool setDoesNotThrow(Function &F) { |
101 | if (F.doesNotThrow()) |
102 | return false; |
103 | F.setDoesNotThrow(); |
104 | ++NumNoUnwind; |
105 | return true; |
106 | } |
107 | |
108 | static bool setRetDoesNotAlias(Function &F) { |
109 | if (F.hasRetAttribute(Attribute::Kind: NoAlias)) |
110 | return false; |
111 | F.addRetAttr(Attribute::NoAlias); |
112 | ++NumNoAlias; |
113 | return true; |
114 | } |
115 | |
116 | static bool setDoesNotCapture(Function &F, unsigned ArgNo) { |
117 | if (F.hasParamAttribute(ArgNo, Attribute::Kind: NoCapture)) |
118 | return false; |
119 | F.addParamAttr(ArgNo, Attribute::NoCapture); |
120 | ++NumNoCapture; |
121 | return true; |
122 | } |
123 | |
124 | static bool setDoesNotAlias(Function &F, unsigned ArgNo) { |
125 | if (F.hasParamAttribute(ArgNo, Attribute::Kind: NoAlias)) |
126 | return false; |
127 | F.addParamAttr(ArgNo, Attribute::NoAlias); |
128 | ++NumNoAlias; |
129 | return true; |
130 | } |
131 | |
132 | static bool setOnlyReadsMemory(Function &F, unsigned ArgNo) { |
133 | if (F.hasParamAttribute(ArgNo, Attribute::Kind: ReadOnly)) |
134 | return false; |
135 | F.addParamAttr(ArgNo, Attribute::ReadOnly); |
136 | ++NumReadOnlyArg; |
137 | return true; |
138 | } |
139 | |
140 | static bool setOnlyWritesMemory(Function &F, unsigned ArgNo) { |
141 | if (F.hasParamAttribute(ArgNo, Attribute::Kind: WriteOnly)) |
142 | return false; |
143 | F.addParamAttr(ArgNo, Attribute::WriteOnly); |
144 | ++NumWriteOnlyArg; |
145 | return true; |
146 | } |
147 | |
148 | static bool setRetNoUndef(Function &F) { |
149 | if (!F.getReturnType()->isVoidTy() && |
150 | !F.hasRetAttribute(Attribute::Kind: NoUndef)) { |
151 | F.addRetAttr(Attribute::NoUndef); |
152 | ++NumNoUndef; |
153 | return true; |
154 | } |
155 | return false; |
156 | } |
157 | |
158 | static bool setArgsNoUndef(Function &F) { |
159 | bool Changed = false; |
160 | for (unsigned ArgNo = 0; ArgNo < F.arg_size(); ++ArgNo) { |
161 | if (!F.hasParamAttribute(ArgNo, Attribute::Kind: NoUndef)) { |
162 | F.addParamAttr(ArgNo, Attribute::NoUndef); |
163 | ++NumNoUndef; |
164 | Changed = true; |
165 | } |
166 | } |
167 | return Changed; |
168 | } |
169 | |
170 | static bool setArgNoUndef(Function &F, unsigned ArgNo) { |
171 | if (F.hasParamAttribute(ArgNo, Attribute::Kind: NoUndef)) |
172 | return false; |
173 | F.addParamAttr(ArgNo, Attribute::NoUndef); |
174 | ++NumNoUndef; |
175 | return true; |
176 | } |
177 | |
178 | static bool setRetAndArgsNoUndef(Function &F) { |
179 | bool UndefAdded = false; |
180 | UndefAdded |= setRetNoUndef(F); |
181 | UndefAdded |= setArgsNoUndef(F); |
182 | return UndefAdded; |
183 | } |
184 | |
185 | static bool setReturnedArg(Function &F, unsigned ArgNo) { |
186 | if (F.hasParamAttribute(ArgNo, Attribute::Kind: Returned)) |
187 | return false; |
188 | F.addParamAttr(ArgNo, Attribute::Returned); |
189 | ++NumReturnedArg; |
190 | return true; |
191 | } |
192 | |
193 | static bool setNonLazyBind(Function &F) { |
194 | if (F.hasFnAttribute(Attribute::NonLazyBind)) |
195 | return false; |
196 | F.addFnAttr(Attribute::NonLazyBind); |
197 | return true; |
198 | } |
199 | |
200 | static bool setDoesNotFreeMemory(Function &F) { |
201 | if (F.hasFnAttribute(Attribute::NoFree)) |
202 | return false; |
203 | F.addFnAttr(Attribute::NoFree); |
204 | return true; |
205 | } |
206 | |
207 | static bool setWillReturn(Function &F) { |
208 | if (F.hasFnAttribute(Attribute::WillReturn)) |
209 | return false; |
210 | F.addFnAttr(Attribute::WillReturn); |
211 | ++NumWillReturn; |
212 | return true; |
213 | } |
214 | |
215 | static bool setAlignedAllocParam(Function &F, unsigned ArgNo) { |
216 | if (F.hasParamAttribute(ArgNo, Attribute::Kind: AllocAlign)) |
217 | return false; |
218 | F.addParamAttr(ArgNo, Attribute::AllocAlign); |
219 | return true; |
220 | } |
221 | |
222 | static bool setAllocatedPointerParam(Function &F, unsigned ArgNo) { |
223 | if (F.hasParamAttribute(ArgNo, Attribute::Kind: AllocatedPointer)) |
224 | return false; |
225 | F.addParamAttr(ArgNo, Attribute::AllocatedPointer); |
226 | return true; |
227 | } |
228 | |
229 | static bool setAllocSize(Function &F, unsigned ElemSizeArg, |
230 | std::optional<unsigned> NumElemsArg) { |
231 | if (F.hasFnAttribute(Attribute::AllocSize)) |
232 | return false; |
233 | F.addFnAttr(Attr: Attribute::getWithAllocSizeArgs(Context&: F.getContext(), ElemSizeArg, |
234 | NumElemsArg)); |
235 | return true; |
236 | } |
237 | |
238 | static bool setAllocFamily(Function &F, StringRef Family) { |
239 | if (F.hasFnAttribute(Kind: "alloc-family" )) |
240 | return false; |
241 | F.addFnAttr(Kind: "alloc-family" , Val: Family); |
242 | return true; |
243 | } |
244 | |
245 | static bool setAllocKind(Function &F, AllocFnKind K) { |
246 | if (F.hasFnAttribute(Attribute::AllocKind)) |
247 | return false; |
248 | F.addFnAttr( |
249 | Attribute::get(F.getContext(), Attribute::AllocKind, uint64_t(K))); |
250 | return true; |
251 | } |
252 | |
253 | bool llvm::inferNonMandatoryLibFuncAttrs(Module *M, StringRef Name, |
254 | const TargetLibraryInfo &TLI) { |
255 | Function *F = M->getFunction(Name); |
256 | if (!F) |
257 | return false; |
258 | return inferNonMandatoryLibFuncAttrs(F&: *F, TLI); |
259 | } |
260 | |
261 | bool llvm::inferNonMandatoryLibFuncAttrs(Function &F, |
262 | const TargetLibraryInfo &TLI) { |
263 | LibFunc TheLibFunc; |
264 | if (!(TLI.getLibFunc(FDecl: F, F&: TheLibFunc) && TLI.has(F: TheLibFunc))) |
265 | return false; |
266 | |
267 | bool Changed = false; |
268 | |
269 | if (F.getParent() != nullptr && F.getParent()->getRtLibUseGOT()) |
270 | Changed |= setNonLazyBind(F); |
271 | |
272 | switch (TheLibFunc) { |
273 | case LibFunc_strlen: |
274 | case LibFunc_strnlen: |
275 | case LibFunc_wcslen: |
276 | Changed |= setOnlyReadsMemory(F); |
277 | Changed |= setDoesNotThrow(F); |
278 | Changed |= setOnlyAccessesArgMemory(F); |
279 | Changed |= setWillReturn(F); |
280 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
281 | break; |
282 | case LibFunc_strchr: |
283 | case LibFunc_strrchr: |
284 | Changed |= setOnlyAccessesArgMemory(F); |
285 | Changed |= setOnlyReadsMemory(F); |
286 | Changed |= setDoesNotThrow(F); |
287 | Changed |= setWillReturn(F); |
288 | break; |
289 | case LibFunc_strtol: |
290 | case LibFunc_strtod: |
291 | case LibFunc_strtof: |
292 | case LibFunc_strtoul: |
293 | case LibFunc_strtoll: |
294 | case LibFunc_strtold: |
295 | case LibFunc_strtoull: |
296 | Changed |= setDoesNotThrow(F); |
297 | Changed |= setWillReturn(F); |
298 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
299 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
300 | break; |
301 | case LibFunc_strcat: |
302 | case LibFunc_strncat: |
303 | Changed |= setOnlyAccessesArgMemory(F); |
304 | Changed |= setDoesNotThrow(F); |
305 | Changed |= setWillReturn(F); |
306 | Changed |= setReturnedArg(F, ArgNo: 0); |
307 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
308 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
309 | Changed |= setDoesNotAlias(F, ArgNo: 0); |
310 | Changed |= setDoesNotAlias(F, ArgNo: 1); |
311 | break; |
312 | case LibFunc_strcpy: |
313 | case LibFunc_strncpy: |
314 | Changed |= setReturnedArg(F, ArgNo: 0); |
315 | [[fallthrough]]; |
316 | case LibFunc_stpcpy: |
317 | case LibFunc_stpncpy: |
318 | Changed |= setOnlyAccessesArgMemory(F); |
319 | Changed |= setDoesNotThrow(F); |
320 | Changed |= setWillReturn(F); |
321 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
322 | Changed |= setOnlyWritesMemory(F, ArgNo: 0); |
323 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
324 | Changed |= setDoesNotAlias(F, ArgNo: 0); |
325 | Changed |= setDoesNotAlias(F, ArgNo: 1); |
326 | break; |
327 | case LibFunc_strxfrm: |
328 | Changed |= setDoesNotThrow(F); |
329 | Changed |= setWillReturn(F); |
330 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
331 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
332 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
333 | break; |
334 | case LibFunc_strcmp: // 0,1 |
335 | case LibFunc_strspn: // 0,1 |
336 | case LibFunc_strncmp: // 0,1 |
337 | case LibFunc_strcspn: // 0,1 |
338 | Changed |= setDoesNotThrow(F); |
339 | Changed |= setOnlyAccessesArgMemory(F); |
340 | Changed |= setWillReturn(F); |
341 | Changed |= setOnlyReadsMemory(F); |
342 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
343 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
344 | break; |
345 | case LibFunc_strcoll: |
346 | case LibFunc_strcasecmp: // 0,1 |
347 | case LibFunc_strncasecmp: // |
348 | // Those functions may depend on the locale, which may be accessed through |
349 | // global memory. |
350 | Changed |= setOnlyReadsMemory(F); |
351 | Changed |= setDoesNotThrow(F); |
352 | Changed |= setWillReturn(F); |
353 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
354 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
355 | break; |
356 | case LibFunc_strstr: |
357 | case LibFunc_strpbrk: |
358 | Changed |= setOnlyAccessesArgMemory(F); |
359 | Changed |= setOnlyReadsMemory(F); |
360 | Changed |= setDoesNotThrow(F); |
361 | Changed |= setWillReturn(F); |
362 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
363 | break; |
364 | case LibFunc_strtok: |
365 | case LibFunc_strtok_r: |
366 | Changed |= setDoesNotThrow(F); |
367 | Changed |= setWillReturn(F); |
368 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
369 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
370 | break; |
371 | case LibFunc_scanf: |
372 | Changed |= setRetAndArgsNoUndef(F); |
373 | Changed |= setDoesNotThrow(F); |
374 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
375 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
376 | break; |
377 | case LibFunc_setbuf: |
378 | case LibFunc_setvbuf: |
379 | Changed |= setRetAndArgsNoUndef(F); |
380 | Changed |= setDoesNotThrow(F); |
381 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
382 | break; |
383 | case LibFunc_strndup: |
384 | Changed |= setArgNoUndef(F, ArgNo: 1); |
385 | [[fallthrough]]; |
386 | case LibFunc_strdup: |
387 | Changed |= setAllocFamily(F, Family: "malloc" ); |
388 | Changed |= setOnlyAccessesInaccessibleMemOrArgMem(F); |
389 | Changed |= setDoesNotThrow(F); |
390 | Changed |= setRetDoesNotAlias(F); |
391 | Changed |= setWillReturn(F); |
392 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
393 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
394 | break; |
395 | case LibFunc_stat: |
396 | case LibFunc_statvfs: |
397 | Changed |= setRetAndArgsNoUndef(F); |
398 | Changed |= setDoesNotThrow(F); |
399 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
400 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
401 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
402 | break; |
403 | case LibFunc_sscanf: |
404 | Changed |= setRetAndArgsNoUndef(F); |
405 | Changed |= setDoesNotThrow(F); |
406 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
407 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
408 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
409 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
410 | break; |
411 | case LibFunc_sprintf: |
412 | Changed |= setRetAndArgsNoUndef(F); |
413 | Changed |= setDoesNotThrow(F); |
414 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
415 | Changed |= setDoesNotAlias(F, ArgNo: 0); |
416 | Changed |= setOnlyWritesMemory(F, ArgNo: 0); |
417 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
418 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
419 | break; |
420 | case LibFunc_snprintf: |
421 | Changed |= setRetAndArgsNoUndef(F); |
422 | Changed |= setDoesNotThrow(F); |
423 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
424 | Changed |= setDoesNotAlias(F, ArgNo: 0); |
425 | Changed |= setOnlyWritesMemory(F, ArgNo: 0); |
426 | Changed |= setDoesNotCapture(F, ArgNo: 2); |
427 | Changed |= setOnlyReadsMemory(F, ArgNo: 2); |
428 | break; |
429 | case LibFunc_setitimer: |
430 | Changed |= setRetAndArgsNoUndef(F); |
431 | Changed |= setDoesNotThrow(F); |
432 | Changed |= setWillReturn(F); |
433 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
434 | Changed |= setDoesNotCapture(F, ArgNo: 2); |
435 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
436 | break; |
437 | case LibFunc_system: |
438 | // May throw; "system" is a valid pthread cancellation point. |
439 | Changed |= setRetAndArgsNoUndef(F); |
440 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
441 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
442 | break; |
443 | case LibFunc_aligned_alloc: |
444 | Changed |= setAlignedAllocParam(F, ArgNo: 0); |
445 | Changed |= setAllocSize(F, ElemSizeArg: 1, NumElemsArg: std::nullopt); |
446 | Changed |= setAllocKind(F, K: AllocFnKind::Alloc | AllocFnKind::Uninitialized | AllocFnKind::Aligned); |
447 | [[fallthrough]]; |
448 | case LibFunc_valloc: |
449 | case LibFunc_malloc: |
450 | case LibFunc_vec_malloc: |
451 | Changed |= setAllocFamily(F, Family: TheLibFunc == LibFunc_vec_malloc ? "vec_malloc" |
452 | : "malloc" ); |
453 | Changed |= setAllocKind(F, K: AllocFnKind::Alloc | AllocFnKind::Uninitialized); |
454 | Changed |= setAllocSize(F, ElemSizeArg: 0, NumElemsArg: std::nullopt); |
455 | Changed |= setOnlyAccessesInaccessibleMemory(F); |
456 | Changed |= setRetAndArgsNoUndef(F); |
457 | Changed |= setDoesNotThrow(F); |
458 | Changed |= setRetDoesNotAlias(F); |
459 | Changed |= setWillReturn(F); |
460 | break; |
461 | case LibFunc_memcmp: |
462 | Changed |= setOnlyAccessesArgMemory(F); |
463 | Changed |= setOnlyReadsMemory(F); |
464 | Changed |= setDoesNotThrow(F); |
465 | Changed |= setWillReturn(F); |
466 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
467 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
468 | break; |
469 | case LibFunc_memchr: |
470 | case LibFunc_memrchr: |
471 | Changed |= setDoesNotThrow(F); |
472 | Changed |= setOnlyAccessesArgMemory(F); |
473 | Changed |= setOnlyReadsMemory(F); |
474 | Changed |= setWillReturn(F); |
475 | break; |
476 | case LibFunc_modf: |
477 | case LibFunc_modff: |
478 | case LibFunc_modfl: |
479 | Changed |= setDoesNotThrow(F); |
480 | Changed |= setWillReturn(F); |
481 | Changed |= setOnlyAccessesArgMemory(F); |
482 | Changed |= setOnlyWritesMemory(F); |
483 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
484 | break; |
485 | case LibFunc_memcpy: |
486 | Changed |= setDoesNotThrow(F); |
487 | Changed |= setOnlyAccessesArgMemory(F); |
488 | Changed |= setWillReturn(F); |
489 | Changed |= setDoesNotAlias(F, ArgNo: 0); |
490 | Changed |= setReturnedArg(F, ArgNo: 0); |
491 | Changed |= setOnlyWritesMemory(F, ArgNo: 0); |
492 | Changed |= setDoesNotAlias(F, ArgNo: 1); |
493 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
494 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
495 | break; |
496 | case LibFunc_memmove: |
497 | Changed |= setDoesNotThrow(F); |
498 | Changed |= setOnlyAccessesArgMemory(F); |
499 | Changed |= setWillReturn(F); |
500 | Changed |= setReturnedArg(F, ArgNo: 0); |
501 | Changed |= setOnlyWritesMemory(F, ArgNo: 0); |
502 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
503 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
504 | break; |
505 | case LibFunc_mempcpy: |
506 | case LibFunc_memccpy: |
507 | Changed |= setWillReturn(F); |
508 | [[fallthrough]]; |
509 | case LibFunc_memcpy_chk: |
510 | Changed |= setDoesNotThrow(F); |
511 | Changed |= setOnlyAccessesArgMemory(F); |
512 | Changed |= setDoesNotAlias(F, ArgNo: 0); |
513 | Changed |= setOnlyWritesMemory(F, ArgNo: 0); |
514 | Changed |= setDoesNotAlias(F, ArgNo: 1); |
515 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
516 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
517 | break; |
518 | case LibFunc_memalign: |
519 | Changed |= setAllocFamily(F, Family: "malloc" ); |
520 | Changed |= setAllocKind(F, K: AllocFnKind::Alloc | AllocFnKind::Aligned | |
521 | AllocFnKind::Uninitialized); |
522 | Changed |= setAllocSize(F, ElemSizeArg: 1, NumElemsArg: std::nullopt); |
523 | Changed |= setAlignedAllocParam(F, ArgNo: 0); |
524 | Changed |= setOnlyAccessesInaccessibleMemory(F); |
525 | Changed |= setRetNoUndef(F); |
526 | Changed |= setDoesNotThrow(F); |
527 | Changed |= setRetDoesNotAlias(F); |
528 | Changed |= setWillReturn(F); |
529 | break; |
530 | case LibFunc_mkdir: |
531 | Changed |= setRetAndArgsNoUndef(F); |
532 | Changed |= setDoesNotThrow(F); |
533 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
534 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
535 | break; |
536 | case LibFunc_mktime: |
537 | Changed |= setRetAndArgsNoUndef(F); |
538 | Changed |= setDoesNotThrow(F); |
539 | Changed |= setWillReturn(F); |
540 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
541 | break; |
542 | case LibFunc_realloc: |
543 | case LibFunc_reallocf: |
544 | case LibFunc_vec_realloc: |
545 | Changed |= setAllocFamily( |
546 | F, Family: TheLibFunc == LibFunc_vec_realloc ? "vec_malloc" : "malloc" ); |
547 | Changed |= setAllocKind(F, K: AllocFnKind::Realloc); |
548 | Changed |= setAllocatedPointerParam(F, ArgNo: 0); |
549 | Changed |= setAllocSize(F, ElemSizeArg: 1, NumElemsArg: std::nullopt); |
550 | Changed |= setOnlyAccessesInaccessibleMemOrArgMem(F); |
551 | Changed |= setRetNoUndef(F); |
552 | Changed |= setDoesNotThrow(F); |
553 | Changed |= setRetDoesNotAlias(F); |
554 | Changed |= setWillReturn(F); |
555 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
556 | Changed |= setArgNoUndef(F, ArgNo: 1); |
557 | break; |
558 | case LibFunc_read: |
559 | // May throw; "read" is a valid pthread cancellation point. |
560 | Changed |= setRetAndArgsNoUndef(F); |
561 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
562 | break; |
563 | case LibFunc_rewind: |
564 | Changed |= setRetAndArgsNoUndef(F); |
565 | Changed |= setDoesNotThrow(F); |
566 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
567 | break; |
568 | case LibFunc_rmdir: |
569 | case LibFunc_remove: |
570 | case LibFunc_realpath: |
571 | Changed |= setRetAndArgsNoUndef(F); |
572 | Changed |= setDoesNotThrow(F); |
573 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
574 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
575 | break; |
576 | case LibFunc_rename: |
577 | Changed |= setRetAndArgsNoUndef(F); |
578 | Changed |= setDoesNotThrow(F); |
579 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
580 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
581 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
582 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
583 | break; |
584 | case LibFunc_readlink: |
585 | Changed |= setRetAndArgsNoUndef(F); |
586 | Changed |= setDoesNotThrow(F); |
587 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
588 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
589 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
590 | break; |
591 | case LibFunc_write: |
592 | // May throw; "write" is a valid pthread cancellation point. |
593 | Changed |= setRetAndArgsNoUndef(F); |
594 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
595 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
596 | break; |
597 | case LibFunc_bcopy: |
598 | Changed |= setDoesNotThrow(F); |
599 | Changed |= setOnlyAccessesArgMemory(F); |
600 | Changed |= setWillReturn(F); |
601 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
602 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
603 | Changed |= setOnlyWritesMemory(F, ArgNo: 1); |
604 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
605 | break; |
606 | case LibFunc_bcmp: |
607 | Changed |= setDoesNotThrow(F); |
608 | Changed |= setOnlyAccessesArgMemory(F); |
609 | Changed |= setOnlyReadsMemory(F); |
610 | Changed |= setWillReturn(F); |
611 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
612 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
613 | break; |
614 | case LibFunc_bzero: |
615 | Changed |= setDoesNotThrow(F); |
616 | Changed |= setOnlyAccessesArgMemory(F); |
617 | Changed |= setWillReturn(F); |
618 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
619 | Changed |= setOnlyWritesMemory(F, ArgNo: 0); |
620 | break; |
621 | case LibFunc_calloc: |
622 | case LibFunc_vec_calloc: |
623 | Changed |= setAllocFamily(F, Family: TheLibFunc == LibFunc_vec_calloc ? "vec_malloc" |
624 | : "malloc" ); |
625 | Changed |= setAllocKind(F, K: AllocFnKind::Alloc | AllocFnKind::Zeroed); |
626 | Changed |= setAllocSize(F, ElemSizeArg: 0, NumElemsArg: 1); |
627 | Changed |= setOnlyAccessesInaccessibleMemory(F); |
628 | Changed |= setRetAndArgsNoUndef(F); |
629 | Changed |= setDoesNotThrow(F); |
630 | Changed |= setRetDoesNotAlias(F); |
631 | Changed |= setWillReturn(F); |
632 | break; |
633 | case LibFunc_chmod: |
634 | case LibFunc_chown: |
635 | Changed |= setRetAndArgsNoUndef(F); |
636 | Changed |= setDoesNotThrow(F); |
637 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
638 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
639 | break; |
640 | case LibFunc_ctermid: |
641 | case LibFunc_clearerr: |
642 | case LibFunc_closedir: |
643 | Changed |= setRetAndArgsNoUndef(F); |
644 | Changed |= setDoesNotThrow(F); |
645 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
646 | break; |
647 | case LibFunc_atoi: |
648 | case LibFunc_atol: |
649 | case LibFunc_atof: |
650 | case LibFunc_atoll: |
651 | Changed |= setDoesNotThrow(F); |
652 | Changed |= setOnlyReadsMemory(F); |
653 | Changed |= setWillReturn(F); |
654 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
655 | break; |
656 | case LibFunc_access: |
657 | Changed |= setRetAndArgsNoUndef(F); |
658 | Changed |= setDoesNotThrow(F); |
659 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
660 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
661 | break; |
662 | case LibFunc_fopen: |
663 | Changed |= setRetAndArgsNoUndef(F); |
664 | Changed |= setDoesNotThrow(F); |
665 | Changed |= setRetDoesNotAlias(F); |
666 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
667 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
668 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
669 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
670 | break; |
671 | case LibFunc_fdopen: |
672 | Changed |= setRetAndArgsNoUndef(F); |
673 | Changed |= setDoesNotThrow(F); |
674 | Changed |= setRetDoesNotAlias(F); |
675 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
676 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
677 | break; |
678 | case LibFunc_feof: |
679 | Changed |= setRetAndArgsNoUndef(F); |
680 | Changed |= setDoesNotThrow(F); |
681 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
682 | break; |
683 | case LibFunc_free: |
684 | case LibFunc_vec_free: |
685 | Changed |= setAllocFamily(F, Family: TheLibFunc == LibFunc_vec_free ? "vec_malloc" |
686 | : "malloc" ); |
687 | Changed |= setAllocKind(F, K: AllocFnKind::Free); |
688 | Changed |= setAllocatedPointerParam(F, ArgNo: 0); |
689 | Changed |= setOnlyAccessesInaccessibleMemOrArgMem(F); |
690 | Changed |= setArgsNoUndef(F); |
691 | Changed |= setDoesNotThrow(F); |
692 | Changed |= setWillReturn(F); |
693 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
694 | break; |
695 | case LibFunc_fseek: |
696 | case LibFunc_ftell: |
697 | case LibFunc_fgetc: |
698 | case LibFunc_fgetc_unlocked: |
699 | case LibFunc_fseeko: |
700 | case LibFunc_ftello: |
701 | case LibFunc_fileno: |
702 | case LibFunc_fflush: |
703 | case LibFunc_fclose: |
704 | case LibFunc_fsetpos: |
705 | case LibFunc_flockfile: |
706 | case LibFunc_funlockfile: |
707 | case LibFunc_ftrylockfile: |
708 | Changed |= setRetAndArgsNoUndef(F); |
709 | Changed |= setDoesNotThrow(F); |
710 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
711 | break; |
712 | case LibFunc_ferror: |
713 | Changed |= setRetAndArgsNoUndef(F); |
714 | Changed |= setDoesNotThrow(F); |
715 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
716 | Changed |= setOnlyReadsMemory(F); |
717 | break; |
718 | case LibFunc_fputc: |
719 | case LibFunc_fputc_unlocked: |
720 | case LibFunc_fstat: |
721 | Changed |= setRetAndArgsNoUndef(F); |
722 | Changed |= setDoesNotThrow(F); |
723 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
724 | break; |
725 | case LibFunc_frexp: |
726 | case LibFunc_frexpf: |
727 | case LibFunc_frexpl: |
728 | Changed |= setDoesNotThrow(F); |
729 | Changed |= setWillReturn(F); |
730 | Changed |= setOnlyAccessesArgMemory(F); |
731 | Changed |= setOnlyWritesMemory(F); |
732 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
733 | break; |
734 | case LibFunc_fstatvfs: |
735 | Changed |= setRetAndArgsNoUndef(F); |
736 | Changed |= setDoesNotThrow(F); |
737 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
738 | break; |
739 | case LibFunc_fgets: |
740 | case LibFunc_fgets_unlocked: |
741 | Changed |= setRetAndArgsNoUndef(F); |
742 | Changed |= setDoesNotThrow(F); |
743 | Changed |= setDoesNotCapture(F, ArgNo: 2); |
744 | break; |
745 | case LibFunc_fread: |
746 | case LibFunc_fread_unlocked: |
747 | Changed |= setRetAndArgsNoUndef(F); |
748 | Changed |= setDoesNotThrow(F); |
749 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
750 | Changed |= setDoesNotCapture(F, ArgNo: 3); |
751 | break; |
752 | case LibFunc_fwrite: |
753 | case LibFunc_fwrite_unlocked: |
754 | Changed |= setRetAndArgsNoUndef(F); |
755 | Changed |= setDoesNotThrow(F); |
756 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
757 | Changed |= setDoesNotCapture(F, ArgNo: 3); |
758 | // FIXME: readonly #1? |
759 | break; |
760 | case LibFunc_fputs: |
761 | case LibFunc_fputs_unlocked: |
762 | Changed |= setRetAndArgsNoUndef(F); |
763 | Changed |= setDoesNotThrow(F); |
764 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
765 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
766 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
767 | break; |
768 | case LibFunc_fscanf: |
769 | case LibFunc_fprintf: |
770 | Changed |= setRetAndArgsNoUndef(F); |
771 | Changed |= setDoesNotThrow(F); |
772 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
773 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
774 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
775 | break; |
776 | case LibFunc_fgetpos: |
777 | Changed |= setRetAndArgsNoUndef(F); |
778 | Changed |= setDoesNotThrow(F); |
779 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
780 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
781 | break; |
782 | case LibFunc_getc: |
783 | Changed |= setRetAndArgsNoUndef(F); |
784 | Changed |= setDoesNotThrow(F); |
785 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
786 | break; |
787 | case LibFunc_getlogin_r: |
788 | Changed |= setRetAndArgsNoUndef(F); |
789 | Changed |= setDoesNotThrow(F); |
790 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
791 | break; |
792 | case LibFunc_getc_unlocked: |
793 | Changed |= setRetAndArgsNoUndef(F); |
794 | Changed |= setDoesNotThrow(F); |
795 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
796 | break; |
797 | case LibFunc_getenv: |
798 | Changed |= setRetAndArgsNoUndef(F); |
799 | Changed |= setDoesNotThrow(F); |
800 | Changed |= setOnlyReadsMemory(F); |
801 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
802 | break; |
803 | case LibFunc_gets: |
804 | case LibFunc_getchar: |
805 | case LibFunc_getchar_unlocked: |
806 | Changed |= setRetAndArgsNoUndef(F); |
807 | Changed |= setDoesNotThrow(F); |
808 | break; |
809 | case LibFunc_getitimer: |
810 | Changed |= setRetAndArgsNoUndef(F); |
811 | Changed |= setDoesNotThrow(F); |
812 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
813 | break; |
814 | case LibFunc_getpwnam: |
815 | Changed |= setRetAndArgsNoUndef(F); |
816 | Changed |= setDoesNotThrow(F); |
817 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
818 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
819 | break; |
820 | case LibFunc_ungetc: |
821 | Changed |= setRetAndArgsNoUndef(F); |
822 | Changed |= setDoesNotThrow(F); |
823 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
824 | break; |
825 | case LibFunc_uname: |
826 | Changed |= setRetAndArgsNoUndef(F); |
827 | Changed |= setDoesNotThrow(F); |
828 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
829 | break; |
830 | case LibFunc_unlink: |
831 | Changed |= setRetAndArgsNoUndef(F); |
832 | Changed |= setDoesNotThrow(F); |
833 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
834 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
835 | break; |
836 | case LibFunc_unsetenv: |
837 | Changed |= setRetAndArgsNoUndef(F); |
838 | Changed |= setDoesNotThrow(F); |
839 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
840 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
841 | break; |
842 | case LibFunc_utime: |
843 | case LibFunc_utimes: |
844 | Changed |= setRetAndArgsNoUndef(F); |
845 | Changed |= setDoesNotThrow(F); |
846 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
847 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
848 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
849 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
850 | break; |
851 | case LibFunc_putc: |
852 | case LibFunc_putc_unlocked: |
853 | Changed |= setRetAndArgsNoUndef(F); |
854 | Changed |= setDoesNotThrow(F); |
855 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
856 | break; |
857 | case LibFunc_puts: |
858 | case LibFunc_printf: |
859 | case LibFunc_perror: |
860 | Changed |= setRetAndArgsNoUndef(F); |
861 | Changed |= setDoesNotThrow(F); |
862 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
863 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
864 | break; |
865 | case LibFunc_pread: |
866 | // May throw; "pread" is a valid pthread cancellation point. |
867 | Changed |= setRetAndArgsNoUndef(F); |
868 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
869 | break; |
870 | case LibFunc_pwrite: |
871 | // May throw; "pwrite" is a valid pthread cancellation point. |
872 | Changed |= setRetAndArgsNoUndef(F); |
873 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
874 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
875 | break; |
876 | case LibFunc_putchar: |
877 | case LibFunc_putchar_unlocked: |
878 | Changed |= setRetAndArgsNoUndef(F); |
879 | Changed |= setDoesNotThrow(F); |
880 | break; |
881 | case LibFunc_popen: |
882 | Changed |= setRetAndArgsNoUndef(F); |
883 | Changed |= setDoesNotThrow(F); |
884 | Changed |= setRetDoesNotAlias(F); |
885 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
886 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
887 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
888 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
889 | break; |
890 | case LibFunc_pclose: |
891 | Changed |= setRetAndArgsNoUndef(F); |
892 | Changed |= setDoesNotThrow(F); |
893 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
894 | break; |
895 | case LibFunc_vscanf: |
896 | Changed |= setRetAndArgsNoUndef(F); |
897 | Changed |= setDoesNotThrow(F); |
898 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
899 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
900 | break; |
901 | case LibFunc_vsscanf: |
902 | Changed |= setRetAndArgsNoUndef(F); |
903 | Changed |= setDoesNotThrow(F); |
904 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
905 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
906 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
907 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
908 | break; |
909 | case LibFunc_vfscanf: |
910 | Changed |= setRetAndArgsNoUndef(F); |
911 | Changed |= setDoesNotThrow(F); |
912 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
913 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
914 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
915 | break; |
916 | case LibFunc_vprintf: |
917 | Changed |= setRetAndArgsNoUndef(F); |
918 | Changed |= setDoesNotThrow(F); |
919 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
920 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
921 | break; |
922 | case LibFunc_vfprintf: |
923 | case LibFunc_vsprintf: |
924 | Changed |= setRetAndArgsNoUndef(F); |
925 | Changed |= setDoesNotThrow(F); |
926 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
927 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
928 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
929 | break; |
930 | case LibFunc_vsnprintf: |
931 | Changed |= setRetAndArgsNoUndef(F); |
932 | Changed |= setDoesNotThrow(F); |
933 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
934 | Changed |= setDoesNotCapture(F, ArgNo: 2); |
935 | Changed |= setOnlyReadsMemory(F, ArgNo: 2); |
936 | break; |
937 | case LibFunc_open: |
938 | // May throw; "open" is a valid pthread cancellation point. |
939 | Changed |= setRetAndArgsNoUndef(F); |
940 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
941 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
942 | break; |
943 | case LibFunc_opendir: |
944 | Changed |= setRetAndArgsNoUndef(F); |
945 | Changed |= setDoesNotThrow(F); |
946 | Changed |= setRetDoesNotAlias(F); |
947 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
948 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
949 | break; |
950 | case LibFunc_tmpfile: |
951 | Changed |= setRetAndArgsNoUndef(F); |
952 | Changed |= setDoesNotThrow(F); |
953 | Changed |= setRetDoesNotAlias(F); |
954 | break; |
955 | case LibFunc_times: |
956 | Changed |= setRetAndArgsNoUndef(F); |
957 | Changed |= setDoesNotThrow(F); |
958 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
959 | break; |
960 | case LibFunc_htonl: |
961 | case LibFunc_htons: |
962 | case LibFunc_ntohl: |
963 | case LibFunc_ntohs: |
964 | Changed |= setDoesNotThrow(F); |
965 | Changed |= setDoesNotAccessMemory(F); |
966 | break; |
967 | case LibFunc_lstat: |
968 | Changed |= setRetAndArgsNoUndef(F); |
969 | Changed |= setDoesNotThrow(F); |
970 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
971 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
972 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
973 | break; |
974 | case LibFunc_lchown: |
975 | Changed |= setRetAndArgsNoUndef(F); |
976 | Changed |= setDoesNotThrow(F); |
977 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
978 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
979 | break; |
980 | case LibFunc_qsort: |
981 | // May throw; places call through function pointer. |
982 | // Cannot give undef pointer/size |
983 | Changed |= setRetAndArgsNoUndef(F); |
984 | Changed |= setDoesNotCapture(F, ArgNo: 3); |
985 | break; |
986 | case LibFunc_dunder_strndup: |
987 | Changed |= setArgNoUndef(F, ArgNo: 1); |
988 | [[fallthrough]]; |
989 | case LibFunc_dunder_strdup: |
990 | Changed |= setDoesNotThrow(F); |
991 | Changed |= setRetDoesNotAlias(F); |
992 | Changed |= setWillReturn(F); |
993 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
994 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
995 | break; |
996 | case LibFunc_dunder_strtok_r: |
997 | Changed |= setDoesNotThrow(F); |
998 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
999 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
1000 | break; |
1001 | case LibFunc_under_IO_getc: |
1002 | Changed |= setRetAndArgsNoUndef(F); |
1003 | Changed |= setDoesNotThrow(F); |
1004 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
1005 | break; |
1006 | case LibFunc_under_IO_putc: |
1007 | Changed |= setRetAndArgsNoUndef(F); |
1008 | Changed |= setDoesNotThrow(F); |
1009 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
1010 | break; |
1011 | case LibFunc_dunder_isoc99_scanf: |
1012 | Changed |= setRetAndArgsNoUndef(F); |
1013 | Changed |= setDoesNotThrow(F); |
1014 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
1015 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
1016 | break; |
1017 | case LibFunc_stat64: |
1018 | case LibFunc_lstat64: |
1019 | case LibFunc_statvfs64: |
1020 | Changed |= setRetAndArgsNoUndef(F); |
1021 | Changed |= setDoesNotThrow(F); |
1022 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
1023 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
1024 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
1025 | break; |
1026 | case LibFunc_dunder_isoc99_sscanf: |
1027 | Changed |= setRetAndArgsNoUndef(F); |
1028 | Changed |= setDoesNotThrow(F); |
1029 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
1030 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
1031 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
1032 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
1033 | break; |
1034 | case LibFunc_fopen64: |
1035 | Changed |= setRetAndArgsNoUndef(F); |
1036 | Changed |= setDoesNotThrow(F); |
1037 | Changed |= setRetDoesNotAlias(F); |
1038 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
1039 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
1040 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
1041 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
1042 | break; |
1043 | case LibFunc_fseeko64: |
1044 | case LibFunc_ftello64: |
1045 | Changed |= setRetAndArgsNoUndef(F); |
1046 | Changed |= setDoesNotThrow(F); |
1047 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
1048 | break; |
1049 | case LibFunc_tmpfile64: |
1050 | Changed |= setRetAndArgsNoUndef(F); |
1051 | Changed |= setDoesNotThrow(F); |
1052 | Changed |= setRetDoesNotAlias(F); |
1053 | break; |
1054 | case LibFunc_fstat64: |
1055 | case LibFunc_fstatvfs64: |
1056 | Changed |= setRetAndArgsNoUndef(F); |
1057 | Changed |= setDoesNotThrow(F); |
1058 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
1059 | break; |
1060 | case LibFunc_open64: |
1061 | // May throw; "open" is a valid pthread cancellation point. |
1062 | Changed |= setRetAndArgsNoUndef(F); |
1063 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
1064 | Changed |= setOnlyReadsMemory(F, ArgNo: 0); |
1065 | break; |
1066 | case LibFunc_gettimeofday: |
1067 | // Currently some platforms have the restrict keyword on the arguments to |
1068 | // gettimeofday. To be conservative, do not add noalias to gettimeofday's |
1069 | // arguments. |
1070 | Changed |= setRetAndArgsNoUndef(F); |
1071 | Changed |= setDoesNotThrow(F); |
1072 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
1073 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
1074 | break; |
1075 | case LibFunc_memset_pattern4: |
1076 | case LibFunc_memset_pattern8: |
1077 | case LibFunc_memset_pattern16: |
1078 | Changed |= setDoesNotCapture(F, ArgNo: 0); |
1079 | Changed |= setDoesNotCapture(F, ArgNo: 1); |
1080 | Changed |= setOnlyReadsMemory(F, ArgNo: 1); |
1081 | [[fallthrough]]; |
1082 | case LibFunc_memset: |
1083 | Changed |= setWillReturn(F); |
1084 | [[fallthrough]]; |
1085 | case LibFunc_memset_chk: |
1086 | Changed |= setOnlyAccessesArgMemory(F); |
1087 | Changed |= setOnlyWritesMemory(F, ArgNo: 0); |
1088 | Changed |= setDoesNotThrow(F); |
1089 | break; |
1090 | // int __nvvm_reflect(const char *) |
1091 | case LibFunc_nvvm_reflect: |
1092 | Changed |= setRetAndArgsNoUndef(F); |
1093 | Changed |= setDoesNotAccessMemory(F); |
1094 | Changed |= setDoesNotThrow(F); |
1095 | break; |
1096 | case LibFunc_ldexp: |
1097 | case LibFunc_ldexpf: |
1098 | case LibFunc_ldexpl: |
1099 | Changed |= setWillReturn(F); |
1100 | break; |
1101 | case LibFunc_abs: |
1102 | case LibFunc_acos: |
1103 | case LibFunc_acosf: |
1104 | case LibFunc_acosh: |
1105 | case LibFunc_acoshf: |
1106 | case LibFunc_acoshl: |
1107 | case LibFunc_acosl: |
1108 | case LibFunc_asin: |
1109 | case LibFunc_asinf: |
1110 | case LibFunc_asinh: |
1111 | case LibFunc_asinhf: |
1112 | case LibFunc_asinhl: |
1113 | case LibFunc_asinl: |
1114 | case LibFunc_atan: |
1115 | case LibFunc_atan2: |
1116 | case LibFunc_atan2f: |
1117 | case LibFunc_atan2l: |
1118 | case LibFunc_atanf: |
1119 | case LibFunc_atanh: |
1120 | case LibFunc_atanhf: |
1121 | case LibFunc_atanhl: |
1122 | case LibFunc_atanl: |
1123 | case LibFunc_cbrt: |
1124 | case LibFunc_cbrtf: |
1125 | case LibFunc_cbrtl: |
1126 | case LibFunc_ceil: |
1127 | case LibFunc_ceilf: |
1128 | case LibFunc_ceill: |
1129 | case LibFunc_copysign: |
1130 | case LibFunc_copysignf: |
1131 | case LibFunc_copysignl: |
1132 | case LibFunc_cos: |
1133 | case LibFunc_cosh: |
1134 | case LibFunc_coshf: |
1135 | case LibFunc_coshl: |
1136 | case LibFunc_cosf: |
1137 | case LibFunc_cosl: |
1138 | case LibFunc_cospi: |
1139 | case LibFunc_cospif: |
1140 | case LibFunc_erf: |
1141 | case LibFunc_erff: |
1142 | case LibFunc_erfl: |
1143 | case LibFunc_exp: |
1144 | case LibFunc_expf: |
1145 | case LibFunc_expl: |
1146 | case LibFunc_exp2: |
1147 | case LibFunc_exp2f: |
1148 | case LibFunc_exp2l: |
1149 | case LibFunc_expm1: |
1150 | case LibFunc_expm1f: |
1151 | case LibFunc_expm1l: |
1152 | case LibFunc_fabs: |
1153 | case LibFunc_fabsf: |
1154 | case LibFunc_fabsl: |
1155 | case LibFunc_ffs: |
1156 | case LibFunc_ffsl: |
1157 | case LibFunc_ffsll: |
1158 | case LibFunc_floor: |
1159 | case LibFunc_floorf: |
1160 | case LibFunc_floorl: |
1161 | case LibFunc_fls: |
1162 | case LibFunc_flsl: |
1163 | case LibFunc_flsll: |
1164 | case LibFunc_fmax: |
1165 | case LibFunc_fmaxf: |
1166 | case LibFunc_fmaxl: |
1167 | case LibFunc_fmin: |
1168 | case LibFunc_fminf: |
1169 | case LibFunc_fminl: |
1170 | case LibFunc_fmod: |
1171 | case LibFunc_fmodf: |
1172 | case LibFunc_fmodl: |
1173 | case LibFunc_isascii: |
1174 | case LibFunc_isdigit: |
1175 | case LibFunc_labs: |
1176 | case LibFunc_llabs: |
1177 | case LibFunc_log: |
1178 | case LibFunc_log10: |
1179 | case LibFunc_log10f: |
1180 | case LibFunc_log10l: |
1181 | case LibFunc_log1p: |
1182 | case LibFunc_log1pf: |
1183 | case LibFunc_log1pl: |
1184 | case LibFunc_log2: |
1185 | case LibFunc_log2f: |
1186 | case LibFunc_log2l: |
1187 | case LibFunc_logb: |
1188 | case LibFunc_logbf: |
1189 | case LibFunc_logbl: |
1190 | case LibFunc_logf: |
1191 | case LibFunc_logl: |
1192 | case LibFunc_nearbyint: |
1193 | case LibFunc_nearbyintf: |
1194 | case LibFunc_nearbyintl: |
1195 | case LibFunc_pow: |
1196 | case LibFunc_powf: |
1197 | case LibFunc_powl: |
1198 | case LibFunc_rint: |
1199 | case LibFunc_rintf: |
1200 | case LibFunc_rintl: |
1201 | case LibFunc_round: |
1202 | case LibFunc_roundf: |
1203 | case LibFunc_roundl: |
1204 | case LibFunc_sin: |
1205 | case LibFunc_sincospif_stret: |
1206 | case LibFunc_sinf: |
1207 | case LibFunc_sinh: |
1208 | case LibFunc_sinhf: |
1209 | case LibFunc_sinhl: |
1210 | case LibFunc_sinl: |
1211 | case LibFunc_sinpi: |
1212 | case LibFunc_sinpif: |
1213 | case LibFunc_sqrt: |
1214 | case LibFunc_sqrtf: |
1215 | case LibFunc_sqrtl: |
1216 | case LibFunc_tan: |
1217 | case LibFunc_tanf: |
1218 | case LibFunc_tanh: |
1219 | case LibFunc_tanhf: |
1220 | case LibFunc_tanhl: |
1221 | case LibFunc_tanl: |
1222 | case LibFunc_toascii: |
1223 | case LibFunc_trunc: |
1224 | case LibFunc_truncf: |
1225 | case LibFunc_truncl: |
1226 | Changed |= setDoesNotThrow(F); |
1227 | Changed |= setDoesNotFreeMemory(F); |
1228 | Changed |= setOnlyWritesMemory(F); |
1229 | Changed |= setWillReturn(F); |
1230 | break; |
1231 | default: |
1232 | // FIXME: It'd be really nice to cover all the library functions we're |
1233 | // aware of here. |
1234 | break; |
1235 | } |
1236 | // We have to do this step after AllocKind has been inferred on functions so |
1237 | // we can reliably identify free-like and realloc-like functions. |
1238 | if (!isLibFreeFunction(F: &F, TLIFn: TheLibFunc) && !isReallocLikeFn(F: &F)) |
1239 | Changed |= setDoesNotFreeMemory(F); |
1240 | return Changed; |
1241 | } |
1242 | |
1243 | static void setArgExtAttr(Function &F, unsigned ArgNo, |
1244 | const TargetLibraryInfo &TLI, bool Signed = true) { |
1245 | Attribute::AttrKind ExtAttr = TLI.getExtAttrForI32Param(Signed); |
1246 | if (ExtAttr != Attribute::None && !F.hasParamAttribute(ArgNo, Kind: ExtAttr)) |
1247 | F.addParamAttr(ArgNo, Kind: ExtAttr); |
1248 | } |
1249 | |
1250 | static void setRetExtAttr(Function &F, |
1251 | const TargetLibraryInfo &TLI, bool Signed = true) { |
1252 | Attribute::AttrKind ExtAttr = TLI.getExtAttrForI32Return(Signed); |
1253 | if (ExtAttr != Attribute::None && !F.hasRetAttribute(Kind: ExtAttr)) |
1254 | F.addRetAttr(Kind: ExtAttr); |
1255 | } |
1256 | |
1257 | // Modeled after X86TargetLowering::markLibCallAttributes. |
1258 | static void markRegisterParameterAttributes(Function *F) { |
1259 | if (!F->arg_size() || F->isVarArg()) |
1260 | return; |
1261 | |
1262 | const CallingConv::ID CC = F->getCallingConv(); |
1263 | if (CC != CallingConv::C && CC != CallingConv::X86_StdCall) |
1264 | return; |
1265 | |
1266 | const Module *M = F->getParent(); |
1267 | unsigned N = M->getNumberRegisterParameters(); |
1268 | if (!N) |
1269 | return; |
1270 | |
1271 | const DataLayout &DL = M->getDataLayout(); |
1272 | |
1273 | for (Argument &A : F->args()) { |
1274 | Type *T = A.getType(); |
1275 | if (!T->isIntOrPtrTy()) |
1276 | continue; |
1277 | |
1278 | const TypeSize &TS = DL.getTypeAllocSize(Ty: T); |
1279 | if (TS > 8) |
1280 | continue; |
1281 | |
1282 | assert(TS <= 4 && "Need to account for parameters larger than word size" ); |
1283 | const unsigned NumRegs = TS > 4 ? 2 : 1; |
1284 | if (N < NumRegs) |
1285 | return; |
1286 | |
1287 | N -= NumRegs; |
1288 | F->addParamAttr(A.getArgNo(), Attribute::InReg); |
1289 | } |
1290 | } |
1291 | |
1292 | FunctionCallee llvm::getOrInsertLibFunc(Module *M, const TargetLibraryInfo &TLI, |
1293 | LibFunc TheLibFunc, FunctionType *T, |
1294 | AttributeList AttributeList) { |
1295 | assert(TLI.has(TheLibFunc) && |
1296 | "Creating call to non-existing library function." ); |
1297 | StringRef Name = TLI.getName(F: TheLibFunc); |
1298 | FunctionCallee C = M->getOrInsertFunction(Name, T, AttributeList); |
1299 | |
1300 | // Make sure any mandatory argument attributes are added. |
1301 | |
1302 | // Any outgoing i32 argument should be handled with setArgExtAttr() which |
1303 | // will add an extension attribute if the target ABI requires it. Adding |
1304 | // argument extensions is typically done by the front end but when an |
1305 | // optimizer is building a library call on its own it has to take care of |
1306 | // this. Each such generated function must be handled here with sign or |
1307 | // zero extensions as needed. F is retreived with cast<> because we demand |
1308 | // of the caller to have called isLibFuncEmittable() first. |
1309 | Function *F = cast<Function>(Val: C.getCallee()); |
1310 | assert(F->getFunctionType() == T && "Function type does not match." ); |
1311 | switch (TheLibFunc) { |
1312 | case LibFunc_fputc: |
1313 | case LibFunc_putchar: |
1314 | setArgExtAttr(F&: *F, ArgNo: 0, TLI); |
1315 | break; |
1316 | case LibFunc_ldexp: |
1317 | case LibFunc_ldexpf: |
1318 | case LibFunc_ldexpl: |
1319 | case LibFunc_memchr: |
1320 | case LibFunc_memrchr: |
1321 | case LibFunc_strchr: |
1322 | setArgExtAttr(F&: *F, ArgNo: 1, TLI); |
1323 | break; |
1324 | case LibFunc_memccpy: |
1325 | setArgExtAttr(F&: *F, ArgNo: 2, TLI); |
1326 | break; |
1327 | |
1328 | // These are functions that are known to not need any argument extension |
1329 | // on any target: A size_t argument (which may be an i32 on some targets) |
1330 | // should not trigger the assert below. |
1331 | case LibFunc_bcmp: |
1332 | setRetExtAttr(F&: *F, TLI); |
1333 | break; |
1334 | case LibFunc_calloc: |
1335 | case LibFunc_fwrite: |
1336 | case LibFunc_malloc: |
1337 | case LibFunc_memcmp: |
1338 | case LibFunc_memcpy_chk: |
1339 | case LibFunc_mempcpy: |
1340 | case LibFunc_memset_pattern16: |
1341 | case LibFunc_snprintf: |
1342 | case LibFunc_stpncpy: |
1343 | case LibFunc_strlcat: |
1344 | case LibFunc_strlcpy: |
1345 | case LibFunc_strncat: |
1346 | case LibFunc_strncmp: |
1347 | case LibFunc_strncpy: |
1348 | case LibFunc_vsnprintf: |
1349 | break; |
1350 | |
1351 | default: |
1352 | #ifndef NDEBUG |
1353 | for (unsigned i = 0; i < T->getNumParams(); i++) |
1354 | assert(!isa<IntegerType>(T->getParamType(i)) && |
1355 | "Unhandled integer argument." ); |
1356 | #endif |
1357 | break; |
1358 | } |
1359 | |
1360 | markRegisterParameterAttributes(F); |
1361 | |
1362 | return C; |
1363 | } |
1364 | |
1365 | FunctionCallee llvm::getOrInsertLibFunc(Module *M, const TargetLibraryInfo &TLI, |
1366 | LibFunc TheLibFunc, FunctionType *T) { |
1367 | return getOrInsertLibFunc(M, TLI, TheLibFunc, T, AttributeList: AttributeList()); |
1368 | } |
1369 | |
1370 | bool llvm::isLibFuncEmittable(const Module *M, const TargetLibraryInfo *TLI, |
1371 | LibFunc TheLibFunc) { |
1372 | StringRef FuncName = TLI->getName(F: TheLibFunc); |
1373 | if (!TLI->has(F: TheLibFunc)) |
1374 | return false; |
1375 | |
1376 | // Check if the Module already has a GlobalValue with the same name, in |
1377 | // which case it must be a Function with the expected type. |
1378 | if (GlobalValue *GV = M->getNamedValue(Name: FuncName)) { |
1379 | if (auto *F = dyn_cast<Function>(Val: GV)) |
1380 | return TLI->isValidProtoForLibFunc(FTy: *F->getFunctionType(), F: TheLibFunc, M: *M); |
1381 | return false; |
1382 | } |
1383 | |
1384 | return true; |
1385 | } |
1386 | |
1387 | bool llvm::isLibFuncEmittable(const Module *M, const TargetLibraryInfo *TLI, |
1388 | StringRef Name) { |
1389 | LibFunc TheLibFunc; |
1390 | return TLI->getLibFunc(funcName: Name, F&: TheLibFunc) && |
1391 | isLibFuncEmittable(M, TLI, TheLibFunc); |
1392 | } |
1393 | |
1394 | bool llvm::hasFloatFn(const Module *M, const TargetLibraryInfo *TLI, Type *Ty, |
1395 | LibFunc DoubleFn, LibFunc FloatFn, LibFunc LongDoubleFn) { |
1396 | switch (Ty->getTypeID()) { |
1397 | case Type::HalfTyID: |
1398 | return false; |
1399 | case Type::FloatTyID: |
1400 | return isLibFuncEmittable(M, TLI, TheLibFunc: FloatFn); |
1401 | case Type::DoubleTyID: |
1402 | return isLibFuncEmittable(M, TLI, TheLibFunc: DoubleFn); |
1403 | default: |
1404 | return isLibFuncEmittable(M, TLI, TheLibFunc: LongDoubleFn); |
1405 | } |
1406 | } |
1407 | |
1408 | StringRef llvm::getFloatFn(const Module *M, const TargetLibraryInfo *TLI, |
1409 | Type *Ty, LibFunc DoubleFn, LibFunc FloatFn, |
1410 | LibFunc LongDoubleFn, LibFunc &TheLibFunc) { |
1411 | assert(hasFloatFn(M, TLI, Ty, DoubleFn, FloatFn, LongDoubleFn) && |
1412 | "Cannot get name for unavailable function!" ); |
1413 | |
1414 | switch (Ty->getTypeID()) { |
1415 | case Type::HalfTyID: |
1416 | llvm_unreachable("No name for HalfTy!" ); |
1417 | case Type::FloatTyID: |
1418 | TheLibFunc = FloatFn; |
1419 | return TLI->getName(F: FloatFn); |
1420 | case Type::DoubleTyID: |
1421 | TheLibFunc = DoubleFn; |
1422 | return TLI->getName(F: DoubleFn); |
1423 | default: |
1424 | TheLibFunc = LongDoubleFn; |
1425 | return TLI->getName(F: LongDoubleFn); |
1426 | } |
1427 | } |
1428 | |
1429 | //- Emit LibCalls ------------------------------------------------------------// |
1430 | |
1431 | static IntegerType *getIntTy(IRBuilderBase &B, const TargetLibraryInfo *TLI) { |
1432 | return B.getIntNTy(N: TLI->getIntSize()); |
1433 | } |
1434 | |
1435 | static IntegerType *getSizeTTy(IRBuilderBase &B, const TargetLibraryInfo *TLI) { |
1436 | const Module *M = B.GetInsertBlock()->getModule(); |
1437 | return B.getIntNTy(N: TLI->getSizeTSize(M: *M)); |
1438 | } |
1439 | |
1440 | static Value *emitLibCall(LibFunc TheLibFunc, Type *ReturnType, |
1441 | ArrayRef<Type *> ParamTypes, |
1442 | ArrayRef<Value *> Operands, IRBuilderBase &B, |
1443 | const TargetLibraryInfo *TLI, |
1444 | bool IsVaArgs = false) { |
1445 | Module *M = B.GetInsertBlock()->getModule(); |
1446 | if (!isLibFuncEmittable(M, TLI, TheLibFunc)) |
1447 | return nullptr; |
1448 | |
1449 | StringRef FuncName = TLI->getName(F: TheLibFunc); |
1450 | FunctionType *FuncType = FunctionType::get(Result: ReturnType, Params: ParamTypes, isVarArg: IsVaArgs); |
1451 | FunctionCallee Callee = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc, T: FuncType); |
1452 | inferNonMandatoryLibFuncAttrs(M, Name: FuncName, TLI: *TLI); |
1453 | CallInst *CI = B.CreateCall(Callee, Args: Operands, Name: FuncName); |
1454 | if (const Function *F = |
1455 | dyn_cast<Function>(Val: Callee.getCallee()->stripPointerCasts())) |
1456 | CI->setCallingConv(F->getCallingConv()); |
1457 | return CI; |
1458 | } |
1459 | |
1460 | Value *llvm::emitStrLen(Value *Ptr, IRBuilderBase &B, const DataLayout &DL, |
1461 | const TargetLibraryInfo *TLI) { |
1462 | Type *CharPtrTy = B.getPtrTy(); |
1463 | Type *SizeTTy = getSizeTTy(B, TLI); |
1464 | return emitLibCall(TheLibFunc: LibFunc_strlen, ReturnType: SizeTTy, ParamTypes: CharPtrTy, Operands: Ptr, B, TLI); |
1465 | } |
1466 | |
1467 | Value *llvm::emitStrDup(Value *Ptr, IRBuilderBase &B, |
1468 | const TargetLibraryInfo *TLI) { |
1469 | Type *CharPtrTy = B.getPtrTy(); |
1470 | return emitLibCall(TheLibFunc: LibFunc_strdup, ReturnType: CharPtrTy, ParamTypes: CharPtrTy, Operands: Ptr, B, TLI); |
1471 | } |
1472 | |
1473 | Value *llvm::emitStrChr(Value *Ptr, char C, IRBuilderBase &B, |
1474 | const TargetLibraryInfo *TLI) { |
1475 | Type *CharPtrTy = B.getPtrTy(); |
1476 | Type *IntTy = getIntTy(B, TLI); |
1477 | return emitLibCall(TheLibFunc: LibFunc_strchr, ReturnType: CharPtrTy, ParamTypes: {CharPtrTy, IntTy}, |
1478 | Operands: {Ptr, ConstantInt::get(Ty: IntTy, V: C)}, B, TLI); |
1479 | } |
1480 | |
1481 | Value *llvm::emitStrNCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilderBase &B, |
1482 | const DataLayout &DL, const TargetLibraryInfo *TLI) { |
1483 | Type *CharPtrTy = B.getPtrTy(); |
1484 | Type *IntTy = getIntTy(B, TLI); |
1485 | Type *SizeTTy = getSizeTTy(B, TLI); |
1486 | return emitLibCall( |
1487 | TheLibFunc: LibFunc_strncmp, ReturnType: IntTy, |
1488 | ParamTypes: {CharPtrTy, CharPtrTy, SizeTTy}, |
1489 | Operands: {Ptr1, Ptr2, Len}, B, TLI); |
1490 | } |
1491 | |
1492 | Value *llvm::emitStrCpy(Value *Dst, Value *Src, IRBuilderBase &B, |
1493 | const TargetLibraryInfo *TLI) { |
1494 | Type *CharPtrTy = Dst->getType(); |
1495 | return emitLibCall(TheLibFunc: LibFunc_strcpy, ReturnType: CharPtrTy, ParamTypes: {CharPtrTy, CharPtrTy}, |
1496 | Operands: {Dst, Src}, B, TLI); |
1497 | } |
1498 | |
1499 | Value *llvm::emitStpCpy(Value *Dst, Value *Src, IRBuilderBase &B, |
1500 | const TargetLibraryInfo *TLI) { |
1501 | Type *CharPtrTy = B.getPtrTy(); |
1502 | return emitLibCall(TheLibFunc: LibFunc_stpcpy, ReturnType: CharPtrTy, ParamTypes: {CharPtrTy, CharPtrTy}, |
1503 | Operands: {Dst, Src}, B, TLI); |
1504 | } |
1505 | |
1506 | Value *llvm::emitStrNCpy(Value *Dst, Value *Src, Value *Len, IRBuilderBase &B, |
1507 | const TargetLibraryInfo *TLI) { |
1508 | Type *CharPtrTy = B.getPtrTy(); |
1509 | Type *SizeTTy = getSizeTTy(B, TLI); |
1510 | return emitLibCall(TheLibFunc: LibFunc_strncpy, ReturnType: CharPtrTy, ParamTypes: {CharPtrTy, CharPtrTy, SizeTTy}, |
1511 | Operands: {Dst, Src, Len}, B, TLI); |
1512 | } |
1513 | |
1514 | Value *llvm::emitStpNCpy(Value *Dst, Value *Src, Value *Len, IRBuilderBase &B, |
1515 | const TargetLibraryInfo *TLI) { |
1516 | Type *CharPtrTy = B.getPtrTy(); |
1517 | Type *SizeTTy = getSizeTTy(B, TLI); |
1518 | return emitLibCall(TheLibFunc: LibFunc_stpncpy, ReturnType: CharPtrTy, ParamTypes: {CharPtrTy, CharPtrTy, SizeTTy}, |
1519 | Operands: {Dst, Src, Len}, B, TLI); |
1520 | } |
1521 | |
1522 | Value *llvm::emitMemCpyChk(Value *Dst, Value *Src, Value *Len, Value *ObjSize, |
1523 | IRBuilderBase &B, const DataLayout &DL, |
1524 | const TargetLibraryInfo *TLI) { |
1525 | Module *M = B.GetInsertBlock()->getModule(); |
1526 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: LibFunc_memcpy_chk)) |
1527 | return nullptr; |
1528 | |
1529 | AttributeList AS; |
1530 | AS = AttributeList::get(M->getContext(), AttributeList::FunctionIndex, |
1531 | Attribute::NoUnwind); |
1532 | Type *VoidPtrTy = B.getPtrTy(); |
1533 | Type *SizeTTy = getSizeTTy(B, TLI); |
1534 | FunctionCallee MemCpy = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc: LibFunc_memcpy_chk, |
1535 | AttributeList: AttributeList::get(C&: M->getContext(), Attrs: AS), RetTy: VoidPtrTy, |
1536 | Args: VoidPtrTy, Args: VoidPtrTy, Args: SizeTTy, Args: SizeTTy); |
1537 | CallInst *CI = B.CreateCall(Callee: MemCpy, Args: {Dst, Src, Len, ObjSize}); |
1538 | if (const Function *F = |
1539 | dyn_cast<Function>(Val: MemCpy.getCallee()->stripPointerCasts())) |
1540 | CI->setCallingConv(F->getCallingConv()); |
1541 | return CI; |
1542 | } |
1543 | |
1544 | Value *llvm::emitMemPCpy(Value *Dst, Value *Src, Value *Len, IRBuilderBase &B, |
1545 | const DataLayout &DL, const TargetLibraryInfo *TLI) { |
1546 | Type *VoidPtrTy = B.getPtrTy(); |
1547 | Type *SizeTTy = getSizeTTy(B, TLI); |
1548 | return emitLibCall(TheLibFunc: LibFunc_mempcpy, ReturnType: VoidPtrTy, |
1549 | ParamTypes: {VoidPtrTy, VoidPtrTy, SizeTTy}, |
1550 | Operands: {Dst, Src, Len}, B, TLI); |
1551 | } |
1552 | |
1553 | Value *llvm::emitMemChr(Value *Ptr, Value *Val, Value *Len, IRBuilderBase &B, |
1554 | const DataLayout &DL, const TargetLibraryInfo *TLI) { |
1555 | Type *VoidPtrTy = B.getPtrTy(); |
1556 | Type *IntTy = getIntTy(B, TLI); |
1557 | Type *SizeTTy = getSizeTTy(B, TLI); |
1558 | return emitLibCall(TheLibFunc: LibFunc_memchr, ReturnType: VoidPtrTy, |
1559 | ParamTypes: {VoidPtrTy, IntTy, SizeTTy}, |
1560 | Operands: {Ptr, Val, Len}, B, TLI); |
1561 | } |
1562 | |
1563 | Value *llvm::emitMemRChr(Value *Ptr, Value *Val, Value *Len, IRBuilderBase &B, |
1564 | const DataLayout &DL, const TargetLibraryInfo *TLI) { |
1565 | Type *VoidPtrTy = B.getPtrTy(); |
1566 | Type *IntTy = getIntTy(B, TLI); |
1567 | Type *SizeTTy = getSizeTTy(B, TLI); |
1568 | return emitLibCall(TheLibFunc: LibFunc_memrchr, ReturnType: VoidPtrTy, |
1569 | ParamTypes: {VoidPtrTy, IntTy, SizeTTy}, |
1570 | Operands: {Ptr, Val, Len}, B, TLI); |
1571 | } |
1572 | |
1573 | Value *llvm::emitMemCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilderBase &B, |
1574 | const DataLayout &DL, const TargetLibraryInfo *TLI) { |
1575 | Type *VoidPtrTy = B.getPtrTy(); |
1576 | Type *IntTy = getIntTy(B, TLI); |
1577 | Type *SizeTTy = getSizeTTy(B, TLI); |
1578 | return emitLibCall(TheLibFunc: LibFunc_memcmp, ReturnType: IntTy, |
1579 | ParamTypes: {VoidPtrTy, VoidPtrTy, SizeTTy}, |
1580 | Operands: {Ptr1, Ptr2, Len}, B, TLI); |
1581 | } |
1582 | |
1583 | Value *llvm::emitBCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilderBase &B, |
1584 | const DataLayout &DL, const TargetLibraryInfo *TLI) { |
1585 | Type *VoidPtrTy = B.getPtrTy(); |
1586 | Type *IntTy = getIntTy(B, TLI); |
1587 | Type *SizeTTy = getSizeTTy(B, TLI); |
1588 | return emitLibCall(TheLibFunc: LibFunc_bcmp, ReturnType: IntTy, |
1589 | ParamTypes: {VoidPtrTy, VoidPtrTy, SizeTTy}, |
1590 | Operands: {Ptr1, Ptr2, Len}, B, TLI); |
1591 | } |
1592 | |
1593 | Value *llvm::emitMemCCpy(Value *Ptr1, Value *Ptr2, Value *Val, Value *Len, |
1594 | IRBuilderBase &B, const TargetLibraryInfo *TLI) { |
1595 | Type *VoidPtrTy = B.getPtrTy(); |
1596 | Type *IntTy = getIntTy(B, TLI); |
1597 | Type *SizeTTy = getSizeTTy(B, TLI); |
1598 | return emitLibCall(TheLibFunc: LibFunc_memccpy, ReturnType: VoidPtrTy, |
1599 | ParamTypes: {VoidPtrTy, VoidPtrTy, IntTy, SizeTTy}, |
1600 | Operands: {Ptr1, Ptr2, Val, Len}, B, TLI); |
1601 | } |
1602 | |
1603 | Value *llvm::emitSNPrintf(Value *Dest, Value *Size, Value *Fmt, |
1604 | ArrayRef<Value *> VariadicArgs, IRBuilderBase &B, |
1605 | const TargetLibraryInfo *TLI) { |
1606 | Type *CharPtrTy = B.getPtrTy(); |
1607 | Type *IntTy = getIntTy(B, TLI); |
1608 | Type *SizeTTy = getSizeTTy(B, TLI); |
1609 | SmallVector<Value *, 8> Args{Dest, Size, Fmt}; |
1610 | llvm::append_range(C&: Args, R&: VariadicArgs); |
1611 | return emitLibCall(TheLibFunc: LibFunc_snprintf, ReturnType: IntTy, |
1612 | ParamTypes: {CharPtrTy, SizeTTy, CharPtrTy}, |
1613 | Operands: Args, B, TLI, /*IsVaArgs=*/true); |
1614 | } |
1615 | |
1616 | Value *llvm::emitSPrintf(Value *Dest, Value *Fmt, |
1617 | ArrayRef<Value *> VariadicArgs, IRBuilderBase &B, |
1618 | const TargetLibraryInfo *TLI) { |
1619 | Type *CharPtrTy = B.getPtrTy(); |
1620 | Type *IntTy = getIntTy(B, TLI); |
1621 | SmallVector<Value *, 8> Args{Dest, Fmt}; |
1622 | llvm::append_range(C&: Args, R&: VariadicArgs); |
1623 | return emitLibCall(TheLibFunc: LibFunc_sprintf, ReturnType: IntTy, |
1624 | ParamTypes: {CharPtrTy, CharPtrTy}, Operands: Args, B, TLI, |
1625 | /*IsVaArgs=*/true); |
1626 | } |
1627 | |
1628 | Value *llvm::emitStrCat(Value *Dest, Value *Src, IRBuilderBase &B, |
1629 | const TargetLibraryInfo *TLI) { |
1630 | Type *CharPtrTy = B.getPtrTy(); |
1631 | return emitLibCall(TheLibFunc: LibFunc_strcat, ReturnType: CharPtrTy, |
1632 | ParamTypes: {CharPtrTy, CharPtrTy}, |
1633 | Operands: {Dest, Src}, B, TLI); |
1634 | } |
1635 | |
1636 | Value *llvm::emitStrLCpy(Value *Dest, Value *Src, Value *Size, IRBuilderBase &B, |
1637 | const TargetLibraryInfo *TLI) { |
1638 | Type *CharPtrTy = B.getPtrTy(); |
1639 | Type *SizeTTy = getSizeTTy(B, TLI); |
1640 | return emitLibCall(TheLibFunc: LibFunc_strlcpy, ReturnType: SizeTTy, |
1641 | ParamTypes: {CharPtrTy, CharPtrTy, SizeTTy}, |
1642 | Operands: {Dest, Src, Size}, B, TLI); |
1643 | } |
1644 | |
1645 | Value *llvm::emitStrLCat(Value *Dest, Value *Src, Value *Size, IRBuilderBase &B, |
1646 | const TargetLibraryInfo *TLI) { |
1647 | Type *CharPtrTy = B.getPtrTy(); |
1648 | Type *SizeTTy = getSizeTTy(B, TLI); |
1649 | return emitLibCall(TheLibFunc: LibFunc_strlcat, ReturnType: SizeTTy, |
1650 | ParamTypes: {CharPtrTy, CharPtrTy, SizeTTy}, |
1651 | Operands: {Dest, Src, Size}, B, TLI); |
1652 | } |
1653 | |
1654 | Value *llvm::emitStrNCat(Value *Dest, Value *Src, Value *Size, IRBuilderBase &B, |
1655 | const TargetLibraryInfo *TLI) { |
1656 | Type *CharPtrTy = B.getPtrTy(); |
1657 | Type *SizeTTy = getSizeTTy(B, TLI); |
1658 | return emitLibCall(TheLibFunc: LibFunc_strncat, ReturnType: CharPtrTy, |
1659 | ParamTypes: {CharPtrTy, CharPtrTy, SizeTTy}, |
1660 | Operands: {Dest, Src, Size}, B, TLI); |
1661 | } |
1662 | |
1663 | Value *llvm::emitVSNPrintf(Value *Dest, Value *Size, Value *Fmt, Value *VAList, |
1664 | IRBuilderBase &B, const TargetLibraryInfo *TLI) { |
1665 | Type *CharPtrTy = B.getPtrTy(); |
1666 | Type *IntTy = getIntTy(B, TLI); |
1667 | Type *SizeTTy = getSizeTTy(B, TLI); |
1668 | return emitLibCall( |
1669 | TheLibFunc: LibFunc_vsnprintf, ReturnType: IntTy, |
1670 | ParamTypes: {CharPtrTy, SizeTTy, CharPtrTy, VAList->getType()}, |
1671 | Operands: {Dest, Size, Fmt, VAList}, B, TLI); |
1672 | } |
1673 | |
1674 | Value *llvm::emitVSPrintf(Value *Dest, Value *Fmt, Value *VAList, |
1675 | IRBuilderBase &B, const TargetLibraryInfo *TLI) { |
1676 | Type *CharPtrTy = B.getPtrTy(); |
1677 | Type *IntTy = getIntTy(B, TLI); |
1678 | return emitLibCall(TheLibFunc: LibFunc_vsprintf, ReturnType: IntTy, |
1679 | ParamTypes: {CharPtrTy, CharPtrTy, VAList->getType()}, |
1680 | Operands: {Dest, Fmt, VAList}, B, TLI); |
1681 | } |
1682 | |
1683 | /// Append a suffix to the function name according to the type of 'Op'. |
1684 | static void appendTypeSuffix(Value *Op, StringRef &Name, |
1685 | SmallString<20> &NameBuffer) { |
1686 | if (!Op->getType()->isDoubleTy()) { |
1687 | NameBuffer += Name; |
1688 | |
1689 | if (Op->getType()->isFloatTy()) |
1690 | NameBuffer += 'f'; |
1691 | else |
1692 | NameBuffer += 'l'; |
1693 | |
1694 | Name = NameBuffer; |
1695 | } |
1696 | } |
1697 | |
1698 | static Value *emitUnaryFloatFnCallHelper(Value *Op, LibFunc TheLibFunc, |
1699 | StringRef Name, IRBuilderBase &B, |
1700 | const AttributeList &Attrs, |
1701 | const TargetLibraryInfo *TLI) { |
1702 | assert((Name != "" ) && "Must specify Name to emitUnaryFloatFnCall" ); |
1703 | |
1704 | Module *M = B.GetInsertBlock()->getModule(); |
1705 | FunctionCallee Callee = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc, RetTy: Op->getType(), |
1706 | Args: Op->getType()); |
1707 | CallInst *CI = B.CreateCall(Callee, Args: Op, Name); |
1708 | |
1709 | // The incoming attribute set may have come from a speculatable intrinsic, but |
1710 | // is being replaced with a library call which is not allowed to be |
1711 | // speculatable. |
1712 | CI->setAttributes( |
1713 | Attrs.removeFnAttribute(B.getContext(), Attribute::Speculatable)); |
1714 | if (const Function *F = |
1715 | dyn_cast<Function>(Val: Callee.getCallee()->stripPointerCasts())) |
1716 | CI->setCallingConv(F->getCallingConv()); |
1717 | |
1718 | return CI; |
1719 | } |
1720 | |
1721 | Value *llvm::emitUnaryFloatFnCall(Value *Op, const TargetLibraryInfo *TLI, |
1722 | StringRef Name, IRBuilderBase &B, |
1723 | const AttributeList &Attrs) { |
1724 | SmallString<20> NameBuffer; |
1725 | appendTypeSuffix(Op, Name, NameBuffer); |
1726 | |
1727 | LibFunc TheLibFunc; |
1728 | TLI->getLibFunc(funcName: Name, F&: TheLibFunc); |
1729 | |
1730 | return emitUnaryFloatFnCallHelper(Op, TheLibFunc, Name, B, Attrs, TLI); |
1731 | } |
1732 | |
1733 | Value *llvm::emitUnaryFloatFnCall(Value *Op, const TargetLibraryInfo *TLI, |
1734 | LibFunc DoubleFn, LibFunc FloatFn, |
1735 | LibFunc LongDoubleFn, IRBuilderBase &B, |
1736 | const AttributeList &Attrs) { |
1737 | // Get the name of the function according to TLI. |
1738 | Module *M = B.GetInsertBlock()->getModule(); |
1739 | LibFunc TheLibFunc; |
1740 | StringRef Name = getFloatFn(M, TLI, Ty: Op->getType(), DoubleFn, FloatFn, |
1741 | LongDoubleFn, TheLibFunc); |
1742 | |
1743 | return emitUnaryFloatFnCallHelper(Op, TheLibFunc, Name, B, Attrs, TLI); |
1744 | } |
1745 | |
1746 | static Value *emitBinaryFloatFnCallHelper(Value *Op1, Value *Op2, |
1747 | LibFunc TheLibFunc, |
1748 | StringRef Name, IRBuilderBase &B, |
1749 | const AttributeList &Attrs, |
1750 | const TargetLibraryInfo *TLI) { |
1751 | assert((Name != "" ) && "Must specify Name to emitBinaryFloatFnCall" ); |
1752 | |
1753 | Module *M = B.GetInsertBlock()->getModule(); |
1754 | FunctionCallee Callee = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc, RetTy: Op1->getType(), |
1755 | Args: Op1->getType(), Args: Op2->getType()); |
1756 | inferNonMandatoryLibFuncAttrs(M, Name, TLI: *TLI); |
1757 | CallInst *CI = B.CreateCall(Callee, Args: { Op1, Op2 }, Name); |
1758 | |
1759 | // The incoming attribute set may have come from a speculatable intrinsic, but |
1760 | // is being replaced with a library call which is not allowed to be |
1761 | // speculatable. |
1762 | CI->setAttributes( |
1763 | Attrs.removeFnAttribute(B.getContext(), Attribute::Speculatable)); |
1764 | if (const Function *F = |
1765 | dyn_cast<Function>(Val: Callee.getCallee()->stripPointerCasts())) |
1766 | CI->setCallingConv(F->getCallingConv()); |
1767 | |
1768 | return CI; |
1769 | } |
1770 | |
1771 | Value *llvm::emitBinaryFloatFnCall(Value *Op1, Value *Op2, |
1772 | const TargetLibraryInfo *TLI, |
1773 | StringRef Name, IRBuilderBase &B, |
1774 | const AttributeList &Attrs) { |
1775 | assert((Name != "" ) && "Must specify Name to emitBinaryFloatFnCall" ); |
1776 | |
1777 | SmallString<20> NameBuffer; |
1778 | appendTypeSuffix(Op: Op1, Name, NameBuffer); |
1779 | |
1780 | LibFunc TheLibFunc; |
1781 | TLI->getLibFunc(funcName: Name, F&: TheLibFunc); |
1782 | |
1783 | return emitBinaryFloatFnCallHelper(Op1, Op2, TheLibFunc, Name, B, Attrs, TLI); |
1784 | } |
1785 | |
1786 | Value *llvm::emitBinaryFloatFnCall(Value *Op1, Value *Op2, |
1787 | const TargetLibraryInfo *TLI, |
1788 | LibFunc DoubleFn, LibFunc FloatFn, |
1789 | LibFunc LongDoubleFn, IRBuilderBase &B, |
1790 | const AttributeList &Attrs) { |
1791 | // Get the name of the function according to TLI. |
1792 | Module *M = B.GetInsertBlock()->getModule(); |
1793 | LibFunc TheLibFunc; |
1794 | StringRef Name = getFloatFn(M, TLI, Ty: Op1->getType(), DoubleFn, FloatFn, |
1795 | LongDoubleFn, TheLibFunc); |
1796 | |
1797 | return emitBinaryFloatFnCallHelper(Op1, Op2, TheLibFunc, Name, B, Attrs, TLI); |
1798 | } |
1799 | |
1800 | // Emit a call to putchar(int) with Char as the argument. Char must have |
1801 | // the same precision as int, which need not be 32 bits. |
1802 | Value *llvm::emitPutChar(Value *Char, IRBuilderBase &B, |
1803 | const TargetLibraryInfo *TLI) { |
1804 | Module *M = B.GetInsertBlock()->getModule(); |
1805 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: LibFunc_putchar)) |
1806 | return nullptr; |
1807 | |
1808 | Type *IntTy = getIntTy(B, TLI); |
1809 | StringRef PutCharName = TLI->getName(F: LibFunc_putchar); |
1810 | FunctionCallee PutChar = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc: LibFunc_putchar, |
1811 | RetTy: IntTy, Args: IntTy); |
1812 | inferNonMandatoryLibFuncAttrs(M, Name: PutCharName, TLI: *TLI); |
1813 | CallInst *CI = B.CreateCall(Callee: PutChar, Args: Char, Name: PutCharName); |
1814 | |
1815 | if (const Function *F = |
1816 | dyn_cast<Function>(Val: PutChar.getCallee()->stripPointerCasts())) |
1817 | CI->setCallingConv(F->getCallingConv()); |
1818 | return CI; |
1819 | } |
1820 | |
1821 | Value *llvm::emitPutS(Value *Str, IRBuilderBase &B, |
1822 | const TargetLibraryInfo *TLI) { |
1823 | Module *M = B.GetInsertBlock()->getModule(); |
1824 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: LibFunc_puts)) |
1825 | return nullptr; |
1826 | |
1827 | Type *IntTy = getIntTy(B, TLI); |
1828 | StringRef PutsName = TLI->getName(F: LibFunc_puts); |
1829 | FunctionCallee PutS = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc: LibFunc_puts, RetTy: IntTy, |
1830 | Args: B.getPtrTy()); |
1831 | inferNonMandatoryLibFuncAttrs(M, Name: PutsName, TLI: *TLI); |
1832 | CallInst *CI = B.CreateCall(Callee: PutS, Args: Str, Name: PutsName); |
1833 | if (const Function *F = |
1834 | dyn_cast<Function>(Val: PutS.getCallee()->stripPointerCasts())) |
1835 | CI->setCallingConv(F->getCallingConv()); |
1836 | return CI; |
1837 | } |
1838 | |
1839 | Value *llvm::emitFPutC(Value *Char, Value *File, IRBuilderBase &B, |
1840 | const TargetLibraryInfo *TLI) { |
1841 | Module *M = B.GetInsertBlock()->getModule(); |
1842 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: LibFunc_fputc)) |
1843 | return nullptr; |
1844 | |
1845 | Type *IntTy = getIntTy(B, TLI); |
1846 | StringRef FPutcName = TLI->getName(F: LibFunc_fputc); |
1847 | FunctionCallee F = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc: LibFunc_fputc, RetTy: IntTy, |
1848 | Args: IntTy, Args: File->getType()); |
1849 | if (File->getType()->isPointerTy()) |
1850 | inferNonMandatoryLibFuncAttrs(M, Name: FPutcName, TLI: *TLI); |
1851 | CallInst *CI = B.CreateCall(Callee: F, Args: {Char, File}, Name: FPutcName); |
1852 | |
1853 | if (const Function *Fn = |
1854 | dyn_cast<Function>(Val: F.getCallee()->stripPointerCasts())) |
1855 | CI->setCallingConv(Fn->getCallingConv()); |
1856 | return CI; |
1857 | } |
1858 | |
1859 | Value *llvm::emitFPutS(Value *Str, Value *File, IRBuilderBase &B, |
1860 | const TargetLibraryInfo *TLI) { |
1861 | Module *M = B.GetInsertBlock()->getModule(); |
1862 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: LibFunc_fputs)) |
1863 | return nullptr; |
1864 | |
1865 | Type *IntTy = getIntTy(B, TLI); |
1866 | StringRef FPutsName = TLI->getName(F: LibFunc_fputs); |
1867 | FunctionCallee F = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc: LibFunc_fputs, RetTy: IntTy, |
1868 | Args: B.getPtrTy(), Args: File->getType()); |
1869 | if (File->getType()->isPointerTy()) |
1870 | inferNonMandatoryLibFuncAttrs(M, Name: FPutsName, TLI: *TLI); |
1871 | CallInst *CI = B.CreateCall(Callee: F, Args: {Str, File}, Name: FPutsName); |
1872 | |
1873 | if (const Function *Fn = |
1874 | dyn_cast<Function>(Val: F.getCallee()->stripPointerCasts())) |
1875 | CI->setCallingConv(Fn->getCallingConv()); |
1876 | return CI; |
1877 | } |
1878 | |
1879 | Value *llvm::emitFWrite(Value *Ptr, Value *Size, Value *File, IRBuilderBase &B, |
1880 | const DataLayout &DL, const TargetLibraryInfo *TLI) { |
1881 | Module *M = B.GetInsertBlock()->getModule(); |
1882 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: LibFunc_fwrite)) |
1883 | return nullptr; |
1884 | |
1885 | Type *SizeTTy = getSizeTTy(B, TLI); |
1886 | StringRef FWriteName = TLI->getName(F: LibFunc_fwrite); |
1887 | FunctionCallee F = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc: LibFunc_fwrite, |
1888 | RetTy: SizeTTy, Args: B.getPtrTy(), Args: SizeTTy, |
1889 | Args: SizeTTy, Args: File->getType()); |
1890 | |
1891 | if (File->getType()->isPointerTy()) |
1892 | inferNonMandatoryLibFuncAttrs(M, Name: FWriteName, TLI: *TLI); |
1893 | CallInst *CI = |
1894 | B.CreateCall(Callee: F, Args: {Ptr, Size, |
1895 | ConstantInt::get(Ty: SizeTTy, V: 1), File}); |
1896 | |
1897 | if (const Function *Fn = |
1898 | dyn_cast<Function>(Val: F.getCallee()->stripPointerCasts())) |
1899 | CI->setCallingConv(Fn->getCallingConv()); |
1900 | return CI; |
1901 | } |
1902 | |
1903 | Value *llvm::emitMalloc(Value *Num, IRBuilderBase &B, const DataLayout &DL, |
1904 | const TargetLibraryInfo *TLI) { |
1905 | Module *M = B.GetInsertBlock()->getModule(); |
1906 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: LibFunc_malloc)) |
1907 | return nullptr; |
1908 | |
1909 | StringRef MallocName = TLI->getName(F: LibFunc_malloc); |
1910 | Type *SizeTTy = getSizeTTy(B, TLI); |
1911 | FunctionCallee Malloc = getOrInsertLibFunc(M, TLI: *TLI, TheLibFunc: LibFunc_malloc, |
1912 | RetTy: B.getPtrTy(), Args: SizeTTy); |
1913 | inferNonMandatoryLibFuncAttrs(M, Name: MallocName, TLI: *TLI); |
1914 | CallInst *CI = B.CreateCall(Callee: Malloc, Args: Num, Name: MallocName); |
1915 | |
1916 | if (const Function *F = |
1917 | dyn_cast<Function>(Val: Malloc.getCallee()->stripPointerCasts())) |
1918 | CI->setCallingConv(F->getCallingConv()); |
1919 | |
1920 | return CI; |
1921 | } |
1922 | |
1923 | Value *llvm::emitCalloc(Value *Num, Value *Size, IRBuilderBase &B, |
1924 | const TargetLibraryInfo &TLI) { |
1925 | Module *M = B.GetInsertBlock()->getModule(); |
1926 | if (!isLibFuncEmittable(M, TLI: &TLI, TheLibFunc: LibFunc_calloc)) |
1927 | return nullptr; |
1928 | |
1929 | StringRef CallocName = TLI.getName(F: LibFunc_calloc); |
1930 | Type *SizeTTy = getSizeTTy(B, TLI: &TLI); |
1931 | FunctionCallee Calloc = getOrInsertLibFunc(M, TLI, TheLibFunc: LibFunc_calloc, |
1932 | RetTy: B.getPtrTy(), Args: SizeTTy, Args: SizeTTy); |
1933 | inferNonMandatoryLibFuncAttrs(M, Name: CallocName, TLI); |
1934 | CallInst *CI = B.CreateCall(Callee: Calloc, Args: {Num, Size}, Name: CallocName); |
1935 | |
1936 | if (const auto *F = |
1937 | dyn_cast<Function>(Val: Calloc.getCallee()->stripPointerCasts())) |
1938 | CI->setCallingConv(F->getCallingConv()); |
1939 | |
1940 | return CI; |
1941 | } |
1942 | |
1943 | Value *llvm::emitHotColdNew(Value *Num, IRBuilderBase &B, |
1944 | const TargetLibraryInfo *TLI, LibFunc NewFunc, |
1945 | uint8_t HotCold) { |
1946 | Module *M = B.GetInsertBlock()->getModule(); |
1947 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: NewFunc)) |
1948 | return nullptr; |
1949 | |
1950 | StringRef Name = TLI->getName(F: NewFunc); |
1951 | FunctionCallee Func = M->getOrInsertFunction(Name, RetTy: B.getPtrTy(), |
1952 | Args: Num->getType(), Args: B.getInt8Ty()); |
1953 | inferNonMandatoryLibFuncAttrs(M, Name, TLI: *TLI); |
1954 | CallInst *CI = B.CreateCall(Callee: Func, Args: {Num, B.getInt8(C: HotCold)}, Name); |
1955 | |
1956 | if (const Function *F = |
1957 | dyn_cast<Function>(Val: Func.getCallee()->stripPointerCasts())) |
1958 | CI->setCallingConv(F->getCallingConv()); |
1959 | |
1960 | return CI; |
1961 | } |
1962 | |
1963 | Value *llvm::emitHotColdNewNoThrow(Value *Num, Value *NoThrow, IRBuilderBase &B, |
1964 | const TargetLibraryInfo *TLI, |
1965 | LibFunc NewFunc, uint8_t HotCold) { |
1966 | Module *M = B.GetInsertBlock()->getModule(); |
1967 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: NewFunc)) |
1968 | return nullptr; |
1969 | |
1970 | StringRef Name = TLI->getName(F: NewFunc); |
1971 | FunctionCallee Func = |
1972 | M->getOrInsertFunction(Name, RetTy: B.getPtrTy(), Args: Num->getType(), |
1973 | Args: NoThrow->getType(), Args: B.getInt8Ty()); |
1974 | inferNonMandatoryLibFuncAttrs(M, Name, TLI: *TLI); |
1975 | CallInst *CI = B.CreateCall(Callee: Func, Args: {Num, NoThrow, B.getInt8(C: HotCold)}, Name); |
1976 | |
1977 | if (const Function *F = |
1978 | dyn_cast<Function>(Val: Func.getCallee()->stripPointerCasts())) |
1979 | CI->setCallingConv(F->getCallingConv()); |
1980 | |
1981 | return CI; |
1982 | } |
1983 | |
1984 | Value *llvm::emitHotColdNewAligned(Value *Num, Value *Align, IRBuilderBase &B, |
1985 | const TargetLibraryInfo *TLI, |
1986 | LibFunc NewFunc, uint8_t HotCold) { |
1987 | Module *M = B.GetInsertBlock()->getModule(); |
1988 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: NewFunc)) |
1989 | return nullptr; |
1990 | |
1991 | StringRef Name = TLI->getName(F: NewFunc); |
1992 | FunctionCallee Func = M->getOrInsertFunction( |
1993 | Name, RetTy: B.getPtrTy(), Args: Num->getType(), Args: Align->getType(), Args: B.getInt8Ty()); |
1994 | inferNonMandatoryLibFuncAttrs(M, Name, TLI: *TLI); |
1995 | CallInst *CI = B.CreateCall(Callee: Func, Args: {Num, Align, B.getInt8(C: HotCold)}, Name); |
1996 | |
1997 | if (const Function *F = |
1998 | dyn_cast<Function>(Val: Func.getCallee()->stripPointerCasts())) |
1999 | CI->setCallingConv(F->getCallingConv()); |
2000 | |
2001 | return CI; |
2002 | } |
2003 | |
2004 | Value *llvm::emitHotColdNewAlignedNoThrow(Value *Num, Value *Align, |
2005 | Value *NoThrow, IRBuilderBase &B, |
2006 | const TargetLibraryInfo *TLI, |
2007 | LibFunc NewFunc, uint8_t HotCold) { |
2008 | Module *M = B.GetInsertBlock()->getModule(); |
2009 | if (!isLibFuncEmittable(M, TLI, TheLibFunc: NewFunc)) |
2010 | return nullptr; |
2011 | |
2012 | StringRef Name = TLI->getName(F: NewFunc); |
2013 | FunctionCallee Func = M->getOrInsertFunction( |
2014 | Name, RetTy: B.getPtrTy(), Args: Num->getType(), Args: Align->getType(), |
2015 | Args: NoThrow->getType(), Args: B.getInt8Ty()); |
2016 | inferNonMandatoryLibFuncAttrs(M, Name, TLI: *TLI); |
2017 | CallInst *CI = |
2018 | B.CreateCall(Callee: Func, Args: {Num, Align, NoThrow, B.getInt8(C: HotCold)}, Name); |
2019 | |
2020 | if (const Function *F = |
2021 | dyn_cast<Function>(Val: Func.getCallee()->stripPointerCasts())) |
2022 | CI->setCallingConv(F->getCallingConv()); |
2023 | |
2024 | return CI; |
2025 | } |
2026 | |