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Don't worry about clobbering physical register defs that aren't used.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56281 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2008-09-17 15:25:49 +00:00
parent 7fd7ca4e7f
commit 59932584a8
1 changed files with 2 additions and 0 deletions
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2
lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
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@ -1709,6 +1709,8 @@ static bool canClobberPhysRegDefs(const SUnit *SuccSU, const SUnit *SU,
MVT VT = N->getValueType(i);
if (VT == MVT::Flag || VT == MVT::Other)
continue;
if (!N->hasAnyUseOfValue(i))
continue;
unsigned Reg = ImpDefs[i - NumDefs];
for (;*SUImpDefs; ++SUImpDefs) {
unsigned SUReg = *SUImpDefs;