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Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic.

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These functions not longer assert when passed 0, but simply return false instead.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123155 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-01-10 02:58:51 +00:00
parent fdc8f2d260
commit c9df025e33
20 changed files with 39 additions and 43 deletions
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4
lib/CodeGen/DeadMachineInstructionElim.cpp
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@ -159,7 +159,7 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) {
const MachineOperand &MO = MI->getOperand(i);
if (MO.isReg() && MO.isDef()) {
unsigned Reg = MO.getReg();
if (Reg != 0 && TargetRegisterInfo::isPhysicalRegister(Reg)) {
if (TargetRegisterInfo::isPhysicalRegister(Reg)) {
LivePhysRegs.reset(Reg);
// Check the subreg set, not the alias set, because a def
// of a super-register may still be partially live after
@ -176,7 +176,7 @@ bool DeadMachineInstructionElim::runOnMachineFunction(MachineFunction &MF) {
const MachineOperand &MO = MI->getOperand(i);
if (MO.isReg() && MO.isUse()) {
unsigned Reg = MO.getReg();
if (Reg != 0 && TargetRegisterInfo::isPhysicalRegister(Reg)) {
if (TargetRegisterInfo::isPhysicalRegister(Reg)) {
LivePhysRegs.set(Reg);
for (const unsigned *AliasSet = TRI->getAliasSet(Reg);
*AliasSet; ++AliasSet)