[mlir][nvvm] Fix control reaches end of non-void function warning (#148965)

clementval · web-flow · commit bec508ad1719 · 2025-07-15T14:49:26.000-07:00
diff --git a/mlir/lib/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.cpp b/mlir/lib/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.cpp
@@ -118,6 +118,7 @@ static llvm::Intrinsic::ID getMatchSyncIntrinsicId(Type valType,
     return valType.isInteger(32) ? llvm::Intrinsic::nvvm_match_all_sync_i32p
                                  : llvm::Intrinsic::nvvm_match_all_sync_i64p;
   }
+  llvm_unreachable("unsupported match sync kind");
 }
 
 static llvm::Intrinsic::ID getVoteSyncIntrinsicId(NVVM::VoteSyncKind kind) {

Original file line number	Diff line number	Diff line change
`@@ -118,6 +118,7 @@ static llvm::Intrinsic::ID getMatchSyncIntrinsicId(Type valType,`
`118`	`118`	`return valType.isInteger(32) ? llvm::Intrinsic::nvvm_match_all_sync_i32p`
`119`	`119`	`: llvm::Intrinsic::nvvm_match_all_sync_i64p;`
`120`	`120`	`}`
	`121`	`+ llvm_unreachable("unsupported match sync kind");`
`121`	`122`	`}`
`122`	`123`
`123`	`124`	`static llvm::Intrinsic::ID getVoteSyncIntrinsicId(NVVM::VoteSyncKind kind) {`