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Fix thinko in my recent movt commit: it's not safe to remat movt, since it has input reg argument.

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Disable rematting of it for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82975 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2009-09-28 07:26:46 +00:00
parent 3ddfb21306
commit b0d8d78138
2 changed files with 1 additions and 4 deletions
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2
lib/Target/ARM/ARMInstrInfo.cpp
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@ -96,8 +96,6 @@ reMaterialize(MachineBasicBlock &MBB,
MachineInstr *MI = MBB.getParent()->CloneMachineInstr(Orig); MachineInstr *MI = MBB.getParent()->CloneMachineInstr(Orig);
MI->getOperand(0).setReg(DestReg); MI->getOperand(0).setReg(DestReg);
if (Orig->getOpcode() == ARM::MOVTi16)
MI->getOperand(1).setReg(DestReg);
MBB.insert(I, MI); MBB.insert(I, MI);
} }

3
lib/Target/ARM/ARMInstrInfo.td
View File

@ -938,8 +938,7 @@ def MOVi16 : AI1<0b1000, (outs GPR:$dst), (ins i32imm:$src),
let Inst{25} = 1; let Inst{25} = 1;
} }
let isReMaterializable = 1, isAsCheapAsAMove = 1, let isAsCheapAsAMove = 1, Constraints = "$src = $dst" in
Constraints = "$src = $dst" in
def MOVTi16 : AI1<0b1010, (outs GPR:$dst), (ins GPR:$src, i32imm:$imm), def MOVTi16 : AI1<0b1010, (outs GPR:$dst), (ins GPR:$src, i32imm:$imm),
DPFrm, IIC_iMOVi, DPFrm, IIC_iMOVi,
"movt", " $dst, $imm", "movt", " $dst, $imm",