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| author | Logan Chien <loganchien@google.com> | 2011-10-20 00:08:13 +0800 |
|---|---|---|
| committer | Logan Chien <loganchien@google.com> | 2011-10-20 00:09:35 +0800 |
| commit | 0ebc07a576037e4e36f68bf5cece32740ca120c0 (patch) | |
| tree | c2e40648043d01498ee25af839a071193561e425 /lib/CodeGen/PeepholeOptimizer.cpp | |
| parent | 62383e889e0b06fd12a6b88311717cd33a1925c4 (diff) | |
| parent | cdd8e46bec4e975d00a5abea808d8eb4138515c5 (diff) | |
| download | external_llvm-0ebc07a576037e4e36f68bf5cece32740ca120c0.zip external_llvm-0ebc07a576037e4e36f68bf5cece32740ca120c0.tar.gz external_llvm-0ebc07a576037e4e36f68bf5cece32740ca120c0.tar.bz2 | |
Merge with LLVM upstream 2011/10/20 (r142530)
Conflicts:
lib/Support/Unix/Host.inc
Change-Id: Idc00db3b63912dca6348bddd9f8a1af2a8d5d147
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 c523e39..bbc7ce2 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; |