testsuite: Fix up memchr-3.c test [PR108991]

The newly added dg-warning directive was missing the comment argument,
so the target selector was treated as comment and the warning was expected
on all targets when it should be expected only on llp64 targets.

2023-03-03  Jakub Jelinek  <jakub@redhat.com>

	PR testsuite/108991
	* gcc.dg/memchr-3.c: Add missing comment argument to dg-warning
	before target selector.

diff --git a/gcc/testsuite/gcc.dg/memchr-3.c b/gcc/testsuite/gcc.dg/memchr-3.c
index af1b26ef3aee538ecaa864f25b9a89a639b42d23..9c73265a89ee2e20bbfe762aabaa769aa3e116b1 100644 (file)
--- a/gcc/testsuite/gcc.dg/memchr-3.c
+++ b/gcc/testsuite/gcc.dg/memchr-3.c
@@ -6,7 +6,7 @@
 typedef __INT8_TYPE__  int8_t;
 typedef __INT32_TYPE__ int32_t;
 
-extern void* memchr (const void*, int, long); /* { dg-warning "-Wbuiltin-declaration-mismatch" { target llp64 } } */
+extern void* memchr (const void*, int, long); /* { dg-warning "-Wbuiltin-declaration-mismatch" "" { target llp64 } } */
 
 struct SX
 {