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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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2
lib/CodeGen/TwoAddressInstructionPass.cpp
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@ -382,7 +382,7 @@ static bool isCopyToReg(MachineInstr &MI, const TargetInstrInfo *TII,
DstReg = 0;
unsigned SrcSubIdx, DstSubIdx;
if (!TII->isMoveInstr(MI, SrcReg, DstReg, SrcSubIdx, DstSubIdx)) {
if (MI.isExtractSubreg()) {
if (MI.isCopy() || MI.isExtractSubreg()) {
DstReg = MI.getOperand(0).getReg();
SrcReg = MI.getOperand(1).getReg();
} else if (MI.isInsertSubreg()) {