Silence "not all control paths return a value" warning; NFC

AaronBallman · Lukacma · commit 81e64d242f7e · 2025-10-29T11:15:59.000Z
diff --git a/clang/lib/Sema/SemaOpenACC.cpp b/clang/lib/Sema/SemaOpenACC.cpp
@@ -3086,6 +3086,7 @@ bool SemaOpenACC::CreateReductionCombinerRecipe(
     case OpenACCReductionOperator::Invalid:
       llvm_unreachable("Invalid should have been caught above");
     }
+    llvm_unreachable("Unhandled case");
   };
 
   auto tryCombiner = [&, this](DeclRefExpr *LHSDRE, DeclRefExpr *RHSDRE,

Original file line number	Diff line number	Diff line change
`@@ -3086,6 +3086,7 @@ bool SemaOpenACC::CreateReductionCombinerRecipe(`
`3086`	`3086`	`case OpenACCReductionOperator::Invalid:`
`3087`	`3087`	`llvm_unreachable("Invalid should have been caught above");`
`3088`	`3088`	`}`
	`3089`	`+ llvm_unreachable("Unhandled case");`
`3089`	`3090`	`};`
`3090`	`3091`
`3091`	`3092`	`auto tryCombiner = [&, this](DeclRefExpr LHSDRE, DeclRefExpr RHSDRE,`