Add DoesNotReturn attribute to bpf_unreachable() func

Yonghong Song · Yonghong Song · commit a64be48ea996 · 2025-05-07T19:23:36.000-07:00
diff --git a/llvm/lib/Target/BPF/BPFISelLowering.cpp b/llvm/lib/Target/BPF/BPFISelLowering.cpp
@@ -758,6 +758,7 @@ SDValue BPFTargetLowering::LowerTRAP(SDValue Op, SelectionDAG &DAG) const {
   CLI.IsVarArg = false;
   CLI.DL = DL;
   CLI.NoMerge = false;
+  CLI.DoesNotReturn = true;
   return LowerCall(CLI, InVals);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -758,6 +758,7 @@ SDValue BPFTargetLowering::LowerTRAP(SDValue Op, SelectionDAG &DAG) const {`
`758`	`758`	`CLI.IsVarArg = false;`
`759`	`759`	`CLI.DL = DL;`
`760`	`760`	`CLI.NoMerge = false;`
	`761`	`+ CLI.DoesNotReturn = true;`
`761`	`762`	`return LowerCall(CLI, InVals);`
`762`	`763`	`}`
`763`	`764`