[ARM][testsuite] follow-up to PR target/52813 and target/11807 fix.

2019-01-18  Christophe Lyon  <christophe.lyon@linaro.org>

	* gcc.target/arm/pr77904.c: Add dg-warning for sp clobber.

From-SVN: r268066

gcc/testsuite/ChangeLog

+2019-01-18  Christophe Lyon  <christophe.lyon@linaro.org>
+
+	* gcc.target/arm/pr77904.c: Add dg-warning for sp clobber.
+
 2019-01-18  Jakub Jelinek  <jakub@redhat.com>
 
 	Reapply:

gcc/testsuite/gcc.target/arm/pr77904.c

@@ -4,7 +4,8 @@
 __attribute__ ((noinline, noclone)) void
 clobber_sp (void)
 {
-  __asm volatile ("" : : : "sp");
+  __asm volatile ("" : : : "sp"); /* { dg-warning "listing the stack pointer register 'sp' in a clobber list is deprecated" } */
+
 }
 
 int