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-rw-r--r--llvm/lib/CodeGen/PeepholeOptimizer.cpp9
1 files changed, 2 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/PeepholeOptimizer.cpp b/llvm/lib/CodeGen/PeepholeOptimizer.cpp
index a4ff04bec1c..7a1bf4050df 100644
--- a/llvm/lib/CodeGen/PeepholeOptimizer.cpp
+++ b/llvm/lib/CodeGen/PeepholeOptimizer.cpp
@@ -240,16 +240,11 @@ bool PeepholeOptimizer::OptimizeCmpInstr(MachineInstr *MI,
unsigned SrcReg;
int CmpValue;
if (!TII->AnalyzeCompare(MI, SrcReg, CmpValue) ||
- TargetRegisterInfo::isPhysicalRegister(SrcReg) || CmpValue != 0)
- return false;
-
- MachineRegisterInfo::def_iterator DI = MRI->def_begin(SrcReg);
- if (llvm::next(DI) != MRI->def_end())
- // Only support one definition.
+ TargetRegisterInfo::isPhysicalRegister(SrcReg))
return false;
// Attempt to convert the defining instruction to set the "zero" flag.
- if (TII->ConvertToSetZeroFlag(&*DI, MI, NextIter)) {
+ if (TII->ConvertToSetZeroFlag(MI, NextIter)) {
++NumEliminated;
return true;
}
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