Importing rustc-1.38.0
diff --git a/src/llvm-project/clang/test/Sema/compare.c b/src/llvm-project/clang/test/Sema/compare.c
index b2b486f..25aa13f 100644
--- a/src/llvm-project/clang/test/Sema/compare.c
+++ b/src/llvm-project/clang/test/Sema/compare.c
@@ -1,4 +1,5 @@
// RUN: %clang_cc1 -triple x86_64-apple-darwin -fsyntax-only -pedantic -verify -Wsign-compare -Wtautological-constant-in-range-compare %s -Wno-unreachable-code
+// RUN: %clang_cc1 -triple x86_64-apple-darwin -fsyntax-only -pedantic -verify -Wsign-compare -Wtype-limits %s -Wno-unreachable-code
int test(char *C) { // nothing here should warn.
return C != ((void*)0);
