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Detect and handle COPY in many places.

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This code is transitional, it will soon be possible to eliminate
isExtractSubreg, isInsertSubreg, and isMoveInstr in most places.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107547 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2010-07-03 00:04:37 +00:00
parent 43b8fd728b
commit 273f7e4299
10 changed files with 73 additions and 40 deletions
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4
lib/CodeGen/MachineCSE.cpp
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@ -241,8 +241,8 @@ bool MachineCSE::PhysRegDefReaches(MachineInstr *CSMI, MachineInstr *MI,
static bool isCopy(const MachineInstr *MI, const TargetInstrInfo *TII) {
unsigned SrcReg, DstReg, SrcSubIdx, DstSubIdx;
return TII->isMoveInstr(*MI, SrcReg, DstReg, SrcSubIdx, DstSubIdx) ||
MI->isExtractSubreg() || MI->isInsertSubreg() || MI->isSubregToReg();
return MI->isCopyLike() ||
TII->isMoveInstr(*MI, SrcReg, DstReg, SrcSubIdx, DstSubIdx);
}
bool MachineCSE::isCSECandidate(MachineInstr *MI) {