AMDGPU: Use correct chain when emitting error on a call (llvm#170645)

arsenm · kcloudy0717 · commit ee7c26e16fa0 · 2025-12-05T00:32:15.000+08:00
Return the input chain at the callsite, not the entry node
chain. Presumably this could cause issues somewhere.
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
@@ -1412,7 +1412,7 @@ SDValue AMDGPUTargetLowering::lowerUnhandledCall(CallLoweringInfo &CLI,
       InVals.push_back(DAG.getPOISON(Arg.VT));
   }
 
-  return DAG.getEntryNode();
+  return CLI.Chain;
 }
 
 SDValue AMDGPUTargetLowering::LowerCall(CallLoweringInfo &CLI,

Original file line number	Diff line number	Diff line change
`@@ -1412,7 +1412,7 @@ SDValue AMDGPUTargetLowering::lowerUnhandledCall(CallLoweringInfo &CLI,`
`1412`	`1412`	`InVals.push_back(DAG.getPOISON(Arg.VT));`
`1413`	`1413`	`}`
`1414`	`1414`
`1415`		`- return DAG.getEntryNode();`
	`1415`	`+ return CLI.Chain;`
`1416`	`1416`	`}`
`1417`	`1417`
`1418`	`1418`	`SDValue AMDGPUTargetLowering::LowerCall(CallLoweringInfo &CLI,`