forked from OSchip/llvm-project
49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
// WebAssemblyFrameLowering.h - TargetFrameLowering for WebAssembly -*- C++ -*-/
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
///
|
|
/// \file
|
|
/// \brief This class implements WebAssembly-specific bits of
|
|
/// TargetFrameLowering class.
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYFRAMELOWERING_H
|
|
#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYFRAMELOWERING_H
|
|
|
|
#include "llvm/Target/TargetFrameLowering.h"
|
|
|
|
namespace llvm {
|
|
|
|
class WebAssemblyFrameLowering final : public TargetFrameLowering {
|
|
public:
|
|
WebAssemblyFrameLowering()
|
|
: TargetFrameLowering(StackGrowsDown, /*StackAlignment=*/16,
|
|
/*LocalAreaOffset=*/0,
|
|
/*TransientStackAlignment=*/16,
|
|
/*StackRealignable=*/true) {}
|
|
|
|
void
|
|
eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator I) const override;
|
|
|
|
/// These methods insert prolog and epilog code into the function.
|
|
void emitPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
|
|
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const override;
|
|
|
|
bool hasFP(const MachineFunction &MF) const override;
|
|
bool hasReservedCallFrame(const MachineFunction &MF) const override;
|
|
|
|
void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
|
|
RegScavenger *RS = nullptr) const override;
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|