6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-11-02 22:23:10 +00:00
Code Issues Projects Releases Wiki Activity

Move hasFP() and few related hooks to TargetFrameInfo.

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

22
lib/Target/MBlaze/MBlazeFrameInfo.cpp
View File

@@ -40,11 +40,17 @@ 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 MBlazeFrameInfo::hasFP(const MachineFunction &MF) const {
const MachineFrameInfo *MFI = MF.getFrameInfo();
return DisableFramePointerElim(MF) || MFI->hasVarSizedObjects();
}
void MBlazeFrameInfo::adjustMBlazeStackFrame(MachineFunction &MF) const {
MachineFrameInfo *MFI = MF.getFrameInfo();
MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
const MBlazeRegisterInfo *RegInfo =
static_cast<const MBlazeRegisterInfo*>(MF.getTarget().getRegisterInfo());
// See the description at MicroBlazeMachineFunction.h
int TopCPUSavedRegOff = -1;
@@ -61,7 +67,7 @@ void MBlazeFrameInfo::adjustMBlazeStackFrame(MachineFunction &MF) const {
MBlazeFI->adjustLoadArgsFI(MFI);
MBlazeFI->adjustStoreVarArgsFI(MFI);
if (RegInfo->hasFP(MF)) {
if (hasFP(MF)) {
MFI->setObjectOffset(MFI->CreateStackObject(RegSize, RegSize, true),
StackOffset);
MBlazeFI->setFPStackOffset(StackOffset);
@@ -90,8 +96,6 @@ void MBlazeFrameInfo::adjustMBlazeStackFrame(MachineFunction &MF) const {
void MBlazeFrameInfo::emitPrologue(MachineFunction &MF) const {
MachineBasicBlock &MBB = MF.front();
MachineFrameInfo *MFI = MF.getFrameInfo();
const MBlazeRegisterInfo *RegInfo =
static_cast<const MBlazeRegisterInfo*>(MF.getTarget().getRegisterInfo());
const MBlazeInstrInfo &TII =
*static_cast<const MBlazeInstrInfo*>(MF.getTarget().getInstrInfo());
MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
@@ -124,7 +128,7 @@ void MBlazeFrameInfo::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)) {
// swi R19, R1, stack_loc
BuildMI(MBB, MBBI, DL, TII.get(MBlaze::SWI))
.addReg(MBlaze::R19).addReg(MBlaze::R1).addImm(FPOffset);
@@ -139,9 +143,7 @@ void MBlazeFrameInfo::emitEpilogue(MachineFunction &MF,
MachineBasicBlock &MBB) const {
MachineBasicBlock::iterator MBBI = prior(MBB.end());
MachineFrameInfo *MFI = MF.getFrameInfo();
MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
const MBlazeRegisterInfo *RegInfo =
static_cast<const MBlazeRegisterInfo*>(MF.getTarget().getRegisterInfo());
MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
const MBlazeInstrInfo &TII =
*static_cast<const MBlazeInstrInfo*>(MF.getTarget().getInstrInfo());
@@ -153,7 +155,7 @@ void MBlazeFrameInfo::emitEpilogue(MachineFunction &MF,
// if framepointer enabled, restore it and restore the
// stack pointer
if (RegInfo->hasFP(MF)) {
if (hasFP(MF)) {
// add R1, R19, R0
BuildMI(MBB, MBBI, dl, TII.get(MBlaze::ADD), MBlaze::R1)
.addReg(MBlaze::R19).addReg(MBlaze::R0);