[flang-rt][device] Silence warning missing return statement at end of non-void function (llvm#156077)

clementval · web-flow · commit fb866f9be58a · 2025-08-29T19:01:24.000Z
- Silence warning when using
`FLANG_RT_EXPERIMENTAL_OFFLOAD_SUPPORT=CUDA`
diff --git a/flang-rt/include/flang-rt/runtime/io-stmt.h b/flang-rt/include/flang-rt/runtime/io-stmt.h
@@ -395,7 +395,7 @@ class IoStatementBase : public IoErrorHandler {
 
   RT_API_ATTRS void BadInquiryKeywordHashCrash(InquiryKeywordHash);
 
-  RT_API_ATTRS void ReportUnsupportedChildIo() const {
+  RT_API_ATTRS [[noreturn]] void ReportUnsupportedChildIo() const {
     Crash("not yet implemented: child IO");
   }
 

Original file line number	Diff line number	Diff line change
`@@ -395,7 +395,7 @@ class IoStatementBase : public IoErrorHandler {`
`395`	`395`
`396`	`396`	`RT_API_ATTRS void BadInquiryKeywordHashCrash(InquiryKeywordHash);`
`397`	`397`
`398`		`- RT_API_ATTRS void ReportUnsupportedChildIo() const {`
	`398`	`+ RT_API_ATTRS [[noreturn]] void ReportUnsupportedChildIo() const {`
`399`	`399`	`Crash("not yet implemented: child IO");`
`400`	`400`	`}`
`401`	`401`