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 19 namespace llvm { 20 namespace RTLIB { 21 /// RTLIB::Libcall enum - This enum defines all of the runtime library calls 22 /// the backend can emit. The various long double types cannot be merged, 23 /// because 80-bit library functions use "xf" and 128-bit use "tf". 24 /// 25 /// When adding PPCF128 functions here, note that their names generally need 26 /// to be overridden for Darwin with the xxx$LDBL128 form. See 27 /// PPCISelLowering.cpp. 28 /// 29 enum Libcall { 30 #define HANDLE_LIBCALL(code, name) code, 31 #include "llvm/IR/RuntimeLibcalls.def" 32 #undef HANDLE_LIBCALL 33 }; 34 35 /// getFPEXT - Return the FPEXT_*_* value for the given types, or 36 /// UNKNOWN_LIBCALL if there is none. 37 Libcall getFPEXT(EVT OpVT, EVT RetVT); 38 39 /// getFPROUND - Return the FPROUND_*_* value for the given types, or 40 /// UNKNOWN_LIBCALL if there is none. 41 Libcall getFPROUND(EVT OpVT, EVT RetVT); 42 43 /// getFPTOSINT - Return the FPTOSINT_*_* value for the given types, or 44 /// UNKNOWN_LIBCALL if there is none. 45 Libcall getFPTOSINT(EVT OpVT, EVT RetVT); 46 47 /// getFPTOUINT - Return the FPTOUINT_*_* value for the given types, or 48 /// UNKNOWN_LIBCALL if there is none. 49 Libcall getFPTOUINT(EVT OpVT, EVT RetVT); 50 51 /// getSINTTOFP - Return the SINTTOFP_*_* value for the given types, or 52 /// UNKNOWN_LIBCALL if there is none. 53 Libcall getSINTTOFP(EVT OpVT, EVT RetVT); 54 55 /// getUINTTOFP - Return the UINTTOFP_*_* value for the given types, or 56 /// UNKNOWN_LIBCALL if there is none. 57 Libcall getUINTTOFP(EVT OpVT, EVT RetVT); 58 59 /// Return the SYNC_FETCH_AND_* value for the given opcode and type, or 60 /// UNKNOWN_LIBCALL if there is none. 61 Libcall getSYNC(unsigned Opc, MVT VT); 62 63 /// getMEMCPY_ELEMENT_UNORDERED_ATOMIC - Return 64 /// MEMCPY_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or 65 /// UNKNOW_LIBCALL if there is none. 66 Libcall getMEMCPY_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize); 67 68 /// getMEMMOVE_ELEMENT_UNORDERED_ATOMIC - Return 69 /// MEMMOVE_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or 70 /// UNKNOW_LIBCALL if there is none. 71 Libcall getMEMMOVE_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize); 72 73 /// getMEMSET_ELEMENT_UNORDERED_ATOMIC - Return 74 /// MEMSET_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or 75 /// UNKNOW_LIBCALL if there is none. 76 Libcall getMEMSET_ELEMENT_UNORDERED_ATOMIC(uint64_t ElementSize); 77 78 } 79 } 80 81 #endif 82