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Remove a special case that doesn't seem necessary any longer.

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Back when this exception was added, it was skipping a lot more code, but
now it just looks like a premature optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170989 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-12-22 17:33:22 +00:00
parent 021e3b6444
commit 037435d114
1 changed files with 2 additions and 13 deletions
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15
lib/CodeGen/MachineInstr.cpp
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@ -711,19 +711,8 @@ void MachineInstr::RemoveOperand(unsigned OpNo) {
untieRegOperand(OpNo);
MachineRegisterInfo *RegInfo = getRegInfo();
// Special case removing the last one.
if (OpNo == getNumOperands()-1) {
// If needed, remove from the reg def/use list.
if (RegInfo && Operands.back().isReg() && Operands.back().isOnRegUseList())
RegInfo->removeRegOperandFromUseList(&Operands.back());
Operands.pop_back();
return;
}
// Otherwise, we are removing an interior operand. If we have reginfo to
// update, remove all operands that will be shifted down from their reg lists,
// move everything down, then re-add them.
// If we have reginfo to update, remove all operands that will be shifted
// down from their reg lists, move everything down, then re-add them.
if (RegInfo) {
for (unsigned i = OpNo, e = getNumOperands(); i != e; ++i) {
if (Operands[i].isReg())