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

[Vikram Hegde 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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vikramRH wrote:

IIUC this was introduced to skip looking for further shrinking and move on with next instruction.

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