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LocalStackSlotAllocation: Turn one-iteration loop into if.

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No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201974 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2014-02-23 13:34:21 +00:00
parent 46e8559826
commit ddc8ff23af
1 changed files with 5 additions and 12 deletions
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17
lib/CodeGen/LocalStackSlotAllocation.cpp
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@ -377,18 +377,11 @@ bool LocalStackSlotPass::insertFrameReferenceRegisters(MachineFunction &Fn) {
// processed all FrameRefs before this one, just check whether or not // processed all FrameRefs before this one, just check whether or not
// the next FrameRef will be able to reuse this new register. If not, // the next FrameRef will be able to reuse this new register. If not,
// then don't bother creating it. // then don't bother creating it.
bool CanReuse = false; if (ref + 1 >= e ||
for (int refn = ref + 1; refn < e; ++refn) { !lookupCandidateBaseReg(
FrameRef &FRN = FrameReferenceInsns[refn]; BaseOffset, FrameSizeAdjust,
MachineBasicBlock::iterator J = FRN.getMachineInstr(); FrameReferenceInsns[ref + 1].getLocalOffset(),
MachineInstr *MIN = J; FrameReferenceInsns[ref + 1].getMachineInstr(), TRI)) {
CanReuse = lookupCandidateBaseReg(BaseOffset, FrameSizeAdjust,
FRN.getLocalOffset(), MIN, TRI);
break;
}
if (!CanReuse) {
BaseOffset = PrevBaseOffset; BaseOffset = PrevBaseOffset;
continue; continue;
} }