MAD_U64_U32 set early-clobber - Machine verifier

AbhayKanhere · AbhayKanhere · commit a0a0504a820d · 2025-08-04T10:35:16.000-07:00
Fix the test failure with this PR
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp b/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
@@ -584,6 +584,7 @@ bool AMDGPUInstructionSelector::selectG_AMDGPU_MAD_64_32(
   I.setDesc(TII.get(Opc));
   I.addOperand(*MF, MachineOperand::CreateImm(0));
   I.addImplicitDefUseOperands(*MF);
+  I.getOperand(0).setIsEarlyClobber(true);
   return constrainSelectedInstRegOperands(I, TII, TRI, RBI);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -584,6 +584,7 @@ bool AMDGPUInstructionSelector::selectG_AMDGPU_MAD_64_32(`
`584`	`584`	`I.setDesc(TII.get(Opc));`
`585`	`585`	`I.addOperand(*MF, MachineOperand::CreateImm(0));`
`586`	`586`	`I.addImplicitDefUseOperands(*MF);`
	`587`	`+ I.getOperand(0).setIsEarlyClobber(true);`
`587`	`588`	`return constrainSelectedInstRegOperands(I, TII, TRI, RBI);`
`588`	`589`	`}`
`589`	`590`