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Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway.

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TII::isMoveInstr is going tobe completely removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108507 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2010-07-16 04:45:42 +00:00
parent 18c479c600
commit 04c528a0c8
15 changed files with 74 additions and 228 deletions
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8
lib/CodeGen/RegAllocFast.cpp
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@@ -520,12 +520,9 @@ RAFast::defineVirtReg(MachineInstr *MI, unsigned OpNum,
if ((!Hint || !TargetRegisterInfo::isPhysicalRegister(Hint)) &&
MRI->hasOneNonDBGUse(VirtReg)) {
const MachineInstr &UseMI = *MRI->use_nodbg_begin(VirtReg);
unsigned SrcReg, DstReg, SrcSubReg, DstSubReg;
// It's a copy, use the destination register as a hint.
if (UseMI.isCopyLike())
Hint = UseMI.getOperand(0).getReg();
else if (TII->isMoveInstr(UseMI, SrcReg, DstReg, SrcSubReg, DstSubReg))
Hint = DstReg;
}
allocVirtReg(MI, *LRI, Hint);
} else if (LR.LastUse) {
@@ -789,14 +786,13 @@ void RAFast::AllocateBasicBlock() {
}
// If this is a copy, we may be able to coalesce.
unsigned CopySrc, CopyDst, CopySrcSub, CopyDstSub;
unsigned CopySrc = 0, CopyDst = 0, CopySrcSub = 0, CopyDstSub = 0;
if (MI->isCopy()) {
CopyDst = MI->getOperand(0).getReg();
CopySrc = MI->getOperand(1).getReg();
CopyDstSub = MI->getOperand(0).getSubReg();
CopySrcSub = MI->getOperand(1).getSubReg();
} else if (!TII->isMoveInstr(*MI, CopySrc, CopyDst, CopySrcSub, CopyDstSub))
CopySrc = CopyDst = 0;
}
// Track registers used by instruction.
UsedInInstr.reset();