undefined -> unspecified. Thanks Mike.

llvm-svn: 66388

clang/include/clang/Basic/DiagnosticSemaKinds.def

@@ -1349,7 +1349,8 @@ DIAG(warn_ret_stack_ref, WARNING,
 DIAG(warn_selfcomparison, WARNING,
      "self-comparison always results in a constant value")
 DIAG(warn_stringcompare, WARNING,
-     "comparison against a string literal is undefined (use strcmp?)")
+     "result of comparison against a string literal is unspecified"
+     " (use strcmp?)")
 
 
 // Blocks

clang/test/Sema/exprs.c

@@ -78,6 +78,6 @@ void test11(struct mystruct P, float F) {
 
 // PR3753
 int test12(const char *X) {
-  return X == "foo";  // expected-warning {{comparison against a string literal is undefined}}
+  return X == "foo";  // expected-warning {{comparison against a string literal is unspecified}}
 }