llvm/lib/Target/X86/GISel/X86CallLowering.h

   1 //===- llvm/lib/Target/X86/X86CallLowering.h - Call lowering ----*- 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 /// \file
  10 /// This file describes how to lower LLVM calls to machine code calls.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_LIB_TARGET_X86_X86CALLLOWERING_H
  15 #define LLVM_LIB_TARGET_X86_X86CALLLOWERING_H
  16
  17 #include "llvm/CodeGen/GlobalISel/CallLowering.h"
  18 #include <functional>
  19
  20 namespace llvm {
  21
  22 template <typename T> class ArrayRef;
  23 class X86TargetLowering;
  24
  25 class X86CallLowering : public CallLowering {
  26 public:
  27   X86CallLowering(const X86TargetLowering &TLI);
  28
  29   bool lowerReturn(MachineIRBuilder &MIRBuilder, const Value *Val,
  30                    ArrayRef<Register> VRegs,
  31                    FunctionLoweringInfo &FLI) const override;
  32
  33   bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
  34                             ArrayRef<ArrayRef<Register>> VRegs,
  35                             FunctionLoweringInfo &FLI) const override;
  36
  37   bool lowerCall(MachineIRBuilder &MIRBuilder,
  38                  CallLoweringInfo &Info) const override;
  39
  40   bool canLowerReturn(MachineFunction &MF, CallingConv::ID CallConv,
  41                       SmallVectorImpl<BaseArgInfo> &Outs,
  42                       bool IsVarArg) const override;
  43 };
  44
  45 } // end namespace llvm
  46
  47 #endif // LLVM_LIB_TARGET_X86_X86CALLLOWERING_H