[llvm-branch-commits] [llvm] [AMDGPU] Make SIShrinkInstructions pass return valid changed state (PR #168833)

[Matt Arsenault via llvm-branch-commits]

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@@ -580,6 +591,7 @@ bool SIShrinkInstructions::shrinkScalarLogicOp(MachineInstr 
&MI) const {
     if (Dest->getReg().isVirtual() && SrcReg->isReg()) {
       MRI->setRegAllocationHint(Dest->getReg(), 0, SrcReg->getReg());
       MRI->setRegAllocationHint(SrcReg->getReg(), 0, Dest->getReg());
+      MoveIterator = true;
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arsenm wrote:

I don't understand why this requires "MoveIterator"?

https://github.com/llvm/llvm-project/pull/168833
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