1 | //===-- CodeGen/RuntimeLibcalls.h - Runtime Library Calls -------*- C++ -*-===// |
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 defines the enum representing the list of runtime library calls |
10 | // the backend may emit during code generation, and also some helper functions. |
11 | // |
12 | //===----------------------------------------------------------------------===// |
13 | |
14 | #ifndef LLVM_CODEGEN_RUNTIMELIBCALLS_H |
15 | #define LLVM_CODEGEN_RUNTIMELIBCALLS_H |
16 | |
17 | #include "llvm/CodeGen/ValueTypes.h" |
18 | #include "llvm/Support/AtomicOrdering.h" |
19 | |
20 | namespace llvm { |
21 | namespace RTLIB { |
22 | /// RTLIB::Libcall enum - This enum defines all of the runtime library calls |
23 | /// the backend can emit. The various long double types cannot be merged, |
24 | /// because 80-bit library functions use "xf" and 128-bit use "tf". |
25 | /// |
26 | /// When adding PPCF128 functions here, note that their names generally need |
27 | /// to be overridden for Darwin with the xxx$LDBL128 form. See |
28 | /// PPCISelLowering.cpp. |
29 | /// |
30 | enum Libcall { |
31 | #define HANDLE_LIBCALL(code, name) code, |
32 | #include "llvm/IR/RuntimeLibcalls.def" |
33 | #undef HANDLE_LIBCALL |
34 | }; |
35 | |
36 | /// GetFPLibCall - Helper to return the right libcall for the given floating |
37 | /// point type, or UNKNOWN_LIBCALL if there is none. |
38 | Libcall getFPLibCall(EVT VT, |
39 | Libcall Call_F32, |
40 | Libcall Call_F64, |
41 | Libcall Call_F80, |
42 | Libcall Call_F128, |
43 | Libcall Call_PPCF128); |
44 | |
45 | /// getFPEXT - Return the FPEXT_*_* value for the given types, or |
46 | /// UNKNOWN_LIBCALL if there is none. |
47 | Libcall getFPEXT(EVT OpVT, EVT RetVT); |
48 | |
49 | /// getFPROUND - Return the FPROUND_*_* value for the given types, or |
50 | /// UNKNOWN_LIBCALL if there is none. |
51 | Libcall getFPROUND(EVT OpVT, EVT RetVT); |
52 | |
53 | /// getFPTOSINT - Return the FPTOSINT_*_* value for the given types, or |
54 | /// UNKNOWN_LIBCALL if there is none. |
55 | Libcall getFPTOSINT(EVT OpVT, EVT RetVT); |
56 | |
57 | /// getFPTOUINT - Return the FPTOUINT_*_* value for the given types, or |
58 | /// UNKNOWN_LIBCALL if there is none. |
59 | Libcall getFPTOUINT(EVT OpVT, EVT RetVT); |
60 | |
61 | /// getSINTTOFP - Return the SINTTOFP_*_* value for the given types, or |
62 | /// UNKNOWN_LIBCALL if there is none. |
63 | Libcall getSINTTOFP(EVT OpVT, EVT RetVT); |
64 | |
65 | /// getUINTTOFP - Return the UINTTOFP_*_* value for the given types, or |
66 | /// UNKNOWN_LIBCALL if there is none. |
67 | Libcall getUINTTOFP(EVT OpVT, EVT RetVT); |
68 | |
69 | /// getPOWI - Return the POWI_* value for the given types, or |
70 | /// UNKNOWN_LIBCALL if there is none. |
71 | Libcall getPOWI(EVT RetVT); |
72 | |
73 | /// getLDEXP - Return the LDEXP_* value for the given types, or |
74 | /// UNKNOWN_LIBCALL if there is none. |
75 | Libcall getLDEXP(EVT RetVT); |
76 | |
77 | /// getFREXP - Return the FREXP_* value for the given types, or |
78 | /// UNKNOWN_LIBCALL if there is none. |
79 | Libcall getFREXP(EVT RetVT); |
80 | |
81 | /// Return the SYNC_FETCH_AND_* value for the given opcode and type, or |
82 | /// UNKNOWN_LIBCALL if there is none. |
83 | Libcall getSYNC(unsigned Opc, MVT VT); |
84 | |
85 | /// Return the outline atomics value for the given atomic ordering, access |
86 | /// size and set of libcalls for a given atomic, or UNKNOWN_LIBCALL if there |
87 | /// is none. |
88 | Libcall getOutlineAtomicHelper(const Libcall (&LC)[5][4], |
89 | AtomicOrdering Order, uint64_t MemSize); |
90 | |
91 | /// Return the outline atomics value for the given opcode, atomic ordering |
92 | /// and type, or UNKNOWN_LIBCALL if there is none. |
93 | Libcall getOUTLINE_ATOMIC(unsigned Opc, AtomicOrdering Order, MVT VT); |
94 | |
95 | /// getMEMCPY_ELEMENT_UNORDERED_ATOMIC - Return |
96 | /// MEMCPY_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or |
97 | /// UNKNOW_LIBCALL if there is none. |
98 | Libcall getMEMCPY_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize); |
99 | |
100 | /// getMEMMOVE_ELEMENT_UNORDERED_ATOMIC - Return |
101 | /// MEMMOVE_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or |
102 | /// UNKNOW_LIBCALL if there is none. |
103 | Libcall getMEMMOVE_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize); |
104 | |
105 | /// getMEMSET_ELEMENT_UNORDERED_ATOMIC - Return |
106 | /// MEMSET_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or |
107 | /// UNKNOW_LIBCALL if there is none. |
108 | Libcall getMEMSET_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize); |
109 | |
110 | } |
111 | } |
112 | |
113 | #endif |
114 | |