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Cleanup up unused R3LiveIn tracking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83522 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -52,10 +52,6 @@ class ARMFunctionInfo : public MachineFunctionInfo {
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/// enable far jump.
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bool LRSpilledForFarJump;
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/// R3IsLiveIn - True if R3 is live in to this function.
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/// FIXME: Remove when register scavenger for Thumb is done.
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bool R3IsLiveIn;
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/// FramePtrSpillOffset - If HasStackFrame, this records the frame pointer
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/// spill stack offset.
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unsigned FramePtrSpillOffset;
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@ -100,7 +96,7 @@ public:
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hasThumb2(false),
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Align(2U),
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VarArgsRegSaveSize(0), HasStackFrame(false),
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LRSpilledForFarJump(false), R3IsLiveIn(false),
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LRSpilledForFarJump(false),
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FramePtrSpillOffset(0), GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
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GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0),
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GPRCS1Frames(0), GPRCS2Frames(0), DPRCSFrames(0),
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@ -111,7 +107,7 @@ public:
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hasThumb2(MF.getTarget().getSubtarget<ARMSubtarget>().hasThumb2()),
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Align(isThumb ? 1U : 2U),
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VarArgsRegSaveSize(0), HasStackFrame(false),
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LRSpilledForFarJump(false), R3IsLiveIn(false),
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LRSpilledForFarJump(false),
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FramePtrSpillOffset(0), GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
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GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0),
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GPRCS1Frames(32), GPRCS2Frames(32), DPRCSFrames(32),
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@ -134,10 +130,6 @@ public:
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bool isLRSpilledForFarJump() const { return LRSpilledForFarJump; }
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void setLRIsSpilledForFarJump(bool s) { LRSpilledForFarJump = s; }
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// FIXME: Remove when register scavenger for Thumb is done.
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bool isR3LiveIn() const { return R3IsLiveIn; }
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void setR3IsLiveIn(bool l) { R3IsLiveIn = l; }
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unsigned getFramePtrSpillOffset() const { return FramePtrSpillOffset; }
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void setFramePtrSpillOffset(unsigned o) { FramePtrSpillOffset = o; }
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@ -671,15 +671,6 @@ void Thumb1RegisterInfo::emitPrologue(MachineFunction &MF) const {
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DebugLoc dl = (MBBI != MBB.end() ?
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MBBI->getDebugLoc() : DebugLoc::getUnknownLoc());
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// Check if R3 is live in. It might have to be used as a scratch register.
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for (MachineRegisterInfo::livein_iterator I =MF.getRegInfo().livein_begin(),
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E = MF.getRegInfo().livein_end(); I != E; ++I) {
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if (I->first == ARM::R3) {
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AFI->setR3IsLiveIn(true);
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break;
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}
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}
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// Thumb add/sub sp, imm8 instructions implicitly multiply the offset by 4.
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NumBytes = (NumBytes + 3) & ~3;
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MFI->setStackSize(NumBytes);
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