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SrcDef is only written and never read. Remove it.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136080 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2011-07-26 15:05:06 +00:00
parent f56138d4ae
commit 7becbc41ab
1 changed files with 7 additions and 8 deletions
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15
lib/CodeGen/PeepholeOptimizer.cpp
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@ -295,7 +295,6 @@ bool PeepholeOptimizer::OptimizeBitcastInstr(MachineInstr *MI,
if (!DefMI || !DefMI->getDesc().isBitcast())
return false;
unsigned SrcDef = 0;
unsigned SrcSrc = 0;
NumDefs = DefMI->getDesc().getNumDefs();
NumSrcs = DefMI->getDesc().getNumOperands() - NumDefs;
@ -308,13 +307,13 @@ bool PeepholeOptimizer::OptimizeBitcastInstr(MachineInstr *MI,
unsigned Reg = MO.getReg();
if (!Reg)
continue;
if (MO.isDef())
SrcDef = Reg;
else if (SrcSrc)
// Multiple sources?
return false;
else
SrcSrc = Reg;
if (!MO.isDef()) {
if (SrcSrc)
// Multiple sources?
return false;
else
SrcSrc = Reg;
}
}
if (MRI->getRegClass(SrcSrc) != MRI->getRegClass(Def))