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Convert EXTRACT_SUBREG to COPY when emitting machine instrs.

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EXTRACT_SUBREG no longer appears as a machine instruction. Use COPY instead.

Add isCopy() checks in many places using isMoveInstr() and isExtractSubreg().
The isMoveInstr hook will be removed later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107879 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2010-07-08 16:40:22 +00:00
parent 5c00e07795
commit 0bc25f4040
18 changed files with 103 additions and 131 deletions
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4
include/llvm/Target/TargetInstrInfo.h
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@@ -122,10 +122,6 @@ public:
SrcReg == DstReg)
return true;
if (MI.getOpcode() == TargetOpcode::EXTRACT_SUBREG &&
MI.getOperand(0).getReg() == MI.getOperand(1).getReg())
return true;
if ((MI.getOpcode() == TargetOpcode::INSERT_SUBREG ||
MI.getOpcode() == TargetOpcode::SUBREG_TO_REG) &&
MI.getOperand(0).getReg() == MI.getOperand(2).getReg())