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Cleanup up unused R3LiveIn tracking.

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llvm-svn: 83522
This commit is contained in:
Jim Grosbach 2009-10-08 01:50:26 +00:00
parent a3e1149941
commit 9f57f9bee6
2 changed files with 2 additions and 19 deletions
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12
lib/Target/ARM/ARMMachineFunctionInfo.h
View File

@ -52,10 +52,6 @@ class ARMFunctionInfo : public MachineFunctionInfo {
/// enable far jump.
bool LRSpilledForFarJump;
/// R3IsLiveIn - True if R3 is live in to this function.
/// FIXME: Remove when register scavenger for Thumb is done.
bool R3IsLiveIn;
/// FramePtrSpillOffset - If HasStackFrame, this records the frame pointer
/// spill stack offset.
unsigned FramePtrSpillOffset;
@ -100,7 +96,7 @@ public:
hasThumb2(false),
Align(2U),
VarArgsRegSaveSize(0), HasStackFrame(false),
LRSpilledForFarJump(false), R3IsLiveIn(false),
LRSpilledForFarJump(false),
FramePtrSpillOffset(0), GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0),
GPRCS1Frames(0), GPRCS2Frames(0), DPRCSFrames(0),
@ -111,7 +107,7 @@ public:
hasThumb2(MF.getTarget().getSubtarget<ARMSubtarget>().hasThumb2()),
Align(isThumb ? 1U : 2U),
VarArgsRegSaveSize(0), HasStackFrame(false),
LRSpilledForFarJump(false), R3IsLiveIn(false),
LRSpilledForFarJump(false),
FramePtrSpillOffset(0), GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0),
GPRCS1Frames(32), GPRCS2Frames(32), DPRCSFrames(32),
@ -134,10 +130,6 @@ public:
bool isLRSpilledForFarJump() const { return LRSpilledForFarJump; }
void setLRIsSpilledForFarJump(bool s) { LRSpilledForFarJump = s; }
// FIXME: Remove when register scavenger for Thumb is done.
bool isR3LiveIn() const { return R3IsLiveIn; }
void setR3IsLiveIn(bool l) { R3IsLiveIn = l; }
unsigned getFramePtrSpillOffset() const { return FramePtrSpillOffset; }
void setFramePtrSpillOffset(unsigned o) { FramePtrSpillOffset = o; }

9
lib/Target/ARM/Thumb1RegisterInfo.cpp
View File

@ -671,15 +671,6 @@ void Thumb1RegisterInfo::emitPrologue(MachineFunction &MF) const {
DebugLoc dl = (MBBI != MBB.end() ?
MBBI->getDebugLoc() : DebugLoc::getUnknownLoc());
// Check if R3 is live in. It might have to be used as a scratch register.
for (MachineRegisterInfo::livein_iterator I =MF.getRegInfo().livein_begin(),
E = MF.getRegInfo().livein_end(); I != E; ++I) {
if (I->first == ARM::R3) {
AFI->setR3IsLiveIn(true);
break;
}
}
// Thumb add/sub sp, imm8 instructions implicitly multiply the offset by 4.
NumBytes = (NumBytes + 3) & ~3;
MFI->setStackSize(NumBytes);