diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineCopyPropagation.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineCopyPropagation.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/MachineCopyPropagation.cpp b/llvm/lib/CodeGen/MachineCopyPropagation.cpp index d2af95cdd9b..79240b3b94a 100644 --- a/llvm/lib/CodeGen/MachineCopyPropagation.cpp +++ b/llvm/lib/CodeGen/MachineCopyPropagation.cpp @@ -48,6 +48,7 @@ namespace { private: typedef SmallVector<unsigned, 4> DestList; typedef DenseMap<unsigned, DestList> SourceMap; + typedef DenseMap<unsigned, MachineInstr*> Reg2MIMap; void SourceNoLongerAvailable(unsigned Reg); void CopyPropagateBlock(MachineBasicBlock &MBB); @@ -55,9 +56,9 @@ namespace { /// Candidates for deletion. SmallSetVector<MachineInstr*, 8> MaybeDeadCopies; /// Def -> available copies map. - DenseMap<unsigned, MachineInstr*> AvailCopyMap; + Reg2MIMap AvailCopyMap; /// Def -> copies map. - DenseMap<unsigned, MachineInstr*> CopyMap; + Reg2MIMap CopyMap; /// Src -> Def map SourceMap SrcMap; bool Changed; @@ -176,7 +177,7 @@ void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) { // If Src is defined by a previous copy, the previous copy cannot be // eliminated. for (MCRegAliasIterator AI(Src, TRI, true); AI.isValid(); ++AI) { - CI = CopyMap.find(*AI); + Reg2MIMap::iterator CI = CopyMap.find(*AI); if (CI != CopyMap.end()) { DEBUG(dbgs() << "MCP: Copy is no longer dead: "; CI->second->dump()); MaybeDeadCopies.remove(CI->second); @@ -242,7 +243,7 @@ void MachineCopyPropagation::CopyPropagateBlock(MachineBasicBlock &MBB) { // If 'Reg' is defined by a copy, the copy is no longer a candidate // for elimination. for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI) { - DenseMap<unsigned, MachineInstr*>::iterator CI = CopyMap.find(*AI); + Reg2MIMap::iterator CI = CopyMap.find(*AI); if (CI != CopyMap.end()) { DEBUG(dbgs() << "MCP: Copy is used - not dead: "; CI->second->dump()); MaybeDeadCopies.remove(CI->second); |
