mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
c6f9261711
Otherwise, a plain str/ldr should be used instead. Make sure we account for that in prologue/epilogue code generation. rdar://8745460 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121391 91177308-0d34-0410-b5e6-96231b3b80d8
74 lines
2.7 KiB
C++
74 lines
2.7 KiB
C++
//===-- ARMTargetFrameInfo.h - Define TargetFrameInfo for ARM ---*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
//
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef ARM_FRAMEINFO_H
|
|
#define ARM_FRAMEINFO_H
|
|
|
|
#include "ARM.h"
|
|
#include "ARMSubtarget.h"
|
|
#include "llvm/Target/TargetFrameInfo.h"
|
|
|
|
namespace llvm {
|
|
class ARMSubtarget;
|
|
|
|
class ARMFrameInfo : public TargetFrameInfo {
|
|
protected:
|
|
const ARMSubtarget &STI;
|
|
|
|
public:
|
|
explicit ARMFrameInfo(const ARMSubtarget &sti)
|
|
: TargetFrameInfo(StackGrowsDown, sti.getStackAlignment(), 0, 4), STI(sti) {
|
|
}
|
|
|
|
/// emitProlog/emitEpilog - These methods insert prolog and epilog code into
|
|
/// the function.
|
|
void emitPrologue(MachineFunction &MF) const;
|
|
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
|
|
|
|
bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
const std::vector<CalleeSavedInfo> &CSI,
|
|
const TargetRegisterInfo *TRI) const;
|
|
|
|
bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
|
|
MachineBasicBlock::iterator MI,
|
|
const std::vector<CalleeSavedInfo> &CSI,
|
|
const TargetRegisterInfo *TRI) const;
|
|
|
|
bool hasFP(const MachineFunction &MF) const;
|
|
bool hasReservedCallFrame(const MachineFunction &MF) const;
|
|
bool canSimplifyCallFramePseudos(const MachineFunction &MF) const;
|
|
int getFrameIndexReference(const MachineFunction &MF, int FI,
|
|
unsigned &FrameReg) const;
|
|
int ResolveFrameIndexReference(const MachineFunction &MF, int FI,
|
|
unsigned &FrameReg, int SPAdj) const;
|
|
int getFrameIndexOffset(const MachineFunction &MF, int FI) const;
|
|
|
|
void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
|
|
RegScavenger *RS) const;
|
|
|
|
private:
|
|
void emitPushInst(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
|
|
const std::vector<CalleeSavedInfo> &CSI, unsigned StmOpc,
|
|
unsigned StrOpc, bool NoGap,
|
|
bool(*Func)(unsigned, bool)) const;
|
|
void emitPopInst(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
|
|
const std::vector<CalleeSavedInfo> &CSI, unsigned LdmOpc,
|
|
unsigned LdrOpc, bool isVarArg, bool NoGap,
|
|
bool(*Func)(unsigned, bool)) const;
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|