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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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lib/CodeGen/StackSlotColoring.cpp
+2 -2
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@@ -508,7 +508,7 @@ bool StackSlotColoring::PropagateBackward(MachineBasicBlock::iterator MII,
// Abort the use is actually a sub-register def. We don't have enough
// information to figure out if it is really legal.
if (MO.getSubReg() || MII->isExtractSubreg() || MII->isSubregToReg())
if (MO.getSubReg() || MII->isSubregToReg())
return false;
const TargetRegisterClass *RC = TID.OpInfo[i].getRegClass(TRI);
@@ -570,7 +570,7 @@ bool StackSlotColoring::PropagateForward(MachineBasicBlock::iterator MII,
// Abort the use is actually a sub-register use. We don't have enough
// information to figure out if it is really legal.
if (MO.getSubReg() || MII->isExtractSubreg())
if (MO.getSubReg())
return false;
const TargetRegisterClass *RC = TID.OpInfo[i].getRegClass(TRI);