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| author | Dan Gohman <gohman@apple.com> | 2008-09-17 15:25:49 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-09-17 15:25:49 +0000 |
| commit | 6ab52a8018cfd5df77c39fade8ac5cc74aff6792 (patch) | |
| tree | c8ff6668dbaee3c5858f9bdeaf67f3ddc17c9e52 /llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp | |
| parent | a5629376e88c324040762e4af6ef083fe722b9d9 (diff) | |
| download | bcm5719-llvm-6ab52a8018cfd5df77c39fade8ac5cc74aff6792.tar.gz bcm5719-llvm-6ab52a8018cfd5df77c39fade8ac5cc74aff6792.zip | |
Don't worry about clobbering physical register defs that aren't used.
llvm-svn: 56281
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp index b9dcc25dc75..0cf155ea4d4 100644 --- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp @@ -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; |
