include/llvm/CodeGen/RuntimeLibcalls.h

   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