diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2011-10-20 21:10:27 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2011-10-20 21:10:27 +0000 |
| commit | 30815c536baacc07e925f0aef23a5395883173dc (patch) | |
| tree | 2cbcf22585e99f8a87d12d5ff94f392c0d266819 /lib/CodeGen/PeepholeOptimizer.cpp | |
| parent | 411bd29eea3c360d5b48a18a17b5e87f5671af0e (diff) | |
Diffstat (limited to 'lib/CodeGen/PeepholeOptimizer.cpp')
| -rw-r--r-- | lib/CodeGen/PeepholeOptimizer.cpp | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/lib/CodeGen/PeepholeOptimizer.cpp b/lib/CodeGen/PeepholeOptimizer.cpp index c523e39bc258..bbc7ce2d0a42 100644 --- a/lib/CodeGen/PeepholeOptimizer.cpp +++ b/lib/CodeGen/PeepholeOptimizer.cpp @@ -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)) @@ -434,6 +433,7 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) { if (MCID.isBitcast()) { if (OptimizeBitcastInstr(MI, MBB)) { // MI is deleted. + LocalMIs.erase(MI); Changed = true; MII = First ? I->begin() : llvm::next(PMII); continue; @@ -441,6 +441,7 @@ bool PeepholeOptimizer::runOnMachineFunction(MachineFunction &MF) { } else if (MCID.isCompare()) { if (OptimizeCmpInstr(MI, MBB)) { // MI is deleted. + LocalMIs.erase(MI); Changed = true; MII = First ? I->begin() : llvm::next(PMII); continue; |