[arm] Use -Os for stack-protector-[56].c tests

Using -O2 made the tests subject to LDRD vs. LDM tuning.
The simplest fix seems to be to use -Os, so that LDM is
unequivocally a win.

gcc/testsuite/
	* gcc.target/arm/stack-protector-5.c: Use -Os rather than -O2.
	* gcc.target/arm/stack-protector-6.c: Likewise.

diff --git a/gcc/testsuite/gcc.target/arm/stack-protector-5.c b/gcc/testsuite/gcc.target/arm/stack-protector-5.c
index b808b11..ae70b99 100644 (file)
--- a/gcc/testsuite/gcc.target/arm/stack-protector-5.c
+++ b/gcc/testsuite/gcc.target/arm/stack-protector-5.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-fstack-protector-all -O2" } */
+/* { dg-options "-fstack-protector-all -Os" } */
 
 void __attribute__ ((noipa))
 f (void)

diff --git a/gcc/testsuite/gcc.target/arm/stack-protector-6.c b/gcc/testsuite/gcc.target/arm/stack-protector-6.c
index f8eec87..2b7e6f7 100644 (file)
--- a/gcc/testsuite/gcc.target/arm/stack-protector-6.c
+++ b/gcc/testsuite/gcc.target/arm/stack-protector-6.c
@@ -1,6 +1,6 @@
 /* { dg-do compile } */
 /* { dg-require-effective-target fpic } */
-/* { dg-options "-fstack-protector-all -O2 -fpic" } */
+/* { dg-options "-fstack-protector-all -Os -fpic" } */
 
 #include "stack-protector-5.c"