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Move hasFP() and few related hooks to TargetFrameInfo.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119740 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov
2010-11-18 21:19:35 +00:00
parent b9064bb964
commit d0c3817669
68 changed files with 492 additions and 461 deletions
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18
lib/Target/Mips/MipsFrameInfo.cpp
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@@ -79,11 +79,17 @@ using namespace llvm;
//
//===----------------------------------------------------------------------===//
// hasFP - Return true if the specified function should have a dedicated frame
// pointer register. This is true if the function has variable sized allocas or
// if frame pointer elimination is disabled.
bool MipsFrameInfo::hasFP(const MachineFunction &MF) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();
return DisableFramePointerElim(MF) || MFI->hasVarSizedObjects();
}
void MipsFrameInfo::adjustMipsStackFrame(MachineFunction &MF) const {
MachineFrameInfo *MFI = MF.getFrameInfo();
MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
const MipsRegisterInfo *RegInfo =
static_cast<const MipsRegisterInfo*>(MF.getTarget().getRegisterInfo());
const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo();
unsigned StackAlign = MF.getTarget().getFrameInfo()->getStackAlignment();
unsigned RegSize = STI.isGP32bit() ? 4 : 8;
@@ -152,7 +158,7 @@ void MipsFrameInfo::adjustMipsStackFrame(MachineFunction &MF) const {
// Stack locations for FP and RA. If only one of them is used,
// the space must be allocated for both, otherwise no space at all.
if (RegInfo->hasFP(MF) || MFI->adjustsStack()) {
if (hasFP(MF) || MFI->adjustsStack()) {
// FP stack location
MFI->setObjectOffset(MFI->CreateStackObject(RegSize, RegSize, true),
StackOffset);
@@ -242,7 +248,7 @@ void MipsFrameInfo::emitPrologue(MachineFunction &MF) const {
// if framepointer enabled, save it and set it
// to point to the stack pointer
if (RegInfo->hasFP(MF)) {
if (hasFP(MF)) {
// sw $fp,stack_loc($sp)
BuildMI(MBB, MBBI, dl, TII.get(Mips::SW))
.addReg(Mips::FP).addImm(FPOffset).addReg(Mips::SP);
@@ -263,8 +269,6 @@ void MipsFrameInfo::emitEpilogue(MachineFunction &MF,
MachineBasicBlock::iterator MBBI = prior(MBB.end());
MachineFrameInfo *MFI = MF.getFrameInfo();
MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
const MipsRegisterInfo *RegInfo =
static_cast<const MipsRegisterInfo*>(MF.getTarget().getRegisterInfo());
const MipsInstrInfo &TII =
*static_cast<const MipsInstrInfo*>(MF.getTarget().getInstrInfo());
DebugLoc dl = MBBI->getDebugLoc();
@@ -278,7 +282,7 @@ void MipsFrameInfo::emitEpilogue(MachineFunction &MF,
// if framepointer enabled, restore it and restore the
// stack pointer
if (RegInfo->hasFP(MF)) {
if (hasFP(MF)) {
// move $sp, $fp
BuildMI(MBB, MBBI, dl, TII.get(Mips::ADDu), Mips::SP)
.addReg(Mips::FP).addReg(Mips::ZERO);