testsuite: _Static_assert is not present in C90

fp8-helpers-neon.c uses _Static_assert, but the compiler warns that
this feature is not present in C90.  Annotate it as an __extension__
to silence the warning, preserving the intent of the test.

for  gcc/testsuite/ChangeLog

	* gcc.target/aarch64/acle/fp8-helpers-neon.c: Silence
	warnings about _Static_assert.

diff --git a/gcc/testsuite/gcc.target/aarch64/acle/fp8-helpers-neon.c b/gcc/testsuite/gcc.target/aarch64/acle/fp8-helpers-neon.c
index ade99557a29154b8c72ddc26ed8b52f3378e11dd..6eddb110ce2b69f111b25756b58dc66e44221a84 100644 (file)
--- a/gcc/testsuite/gcc.target/aarch64/acle/fp8-helpers-neon.c
+++ b/gcc/testsuite/gcc.target/aarch64/acle/fp8-helpers-neon.c
@@ -10,7 +10,7 @@ test_prepare_fpmr_sysreg ()
 {
 
 #define _S_EQ(expr, expected)                                                  \
-  _Static_assert (expr == expected, #expr " == " #expected)
+  __extension__ _Static_assert (expr == expected, #expr " == " #expected)
 
   _S_EQ (__arm_fpm_init (), 0);