[gcc(refs/users/aoliva/heads/testme)] testsuite: ppc: libstdc++ checks vect with -O2

[Alexandre Oliva]

https://gcc.gnu.org/g:0d5d9d92455c8fdb8e893264068bdf2f3d018da0

commit 0d5d9d92455c8fdb8e893264068bdf2f3d018da0
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Wed Mar 18 04:13:01 2026 -0300

    testsuite: ppc: libstdc++ checks vect with -O2
    
    Some of the ppc effective target tests for vector instructions can get
    the tested-for instruction optimized away when compiling with
    optimization, like the libstdc++ testsuite does.  Add volatile to the
    asm statements, like other such tests.
    
    
    for  gcc/testsuite/ChangeLog
    
            * lib/target-supports.exp (check_p8vector_hw_available): Make
            asm volatile.
            (check_vsx_hw_available): Likewise.
            (check_vmx_hw_available): Likewise.

Diff:
---
 gcc/testsuite/lib/target-supports.exp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index bfb8ecadf880..d611eb97e29b 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -3258,7 +3258,7 @@ proc check_p8vector_hw_available { } {
 		{
 		  vector long long v1 = {0x1, 0x2};
 		  vector long long v2;
-		  asm ("xxlorc %0,%1,%1" : "=wa" (v2) : "wa" (v1));
+		  asm volatile ("xxlorc %0,%1,%1" : "=wa" (v2) : "wa" (v1));
 		  return 0;
 		}
 	    } $options
@@ -3557,7 +3557,7 @@ proc check_vsx_hw_available { } {
 		{
 		  vector int v1 = {0, 0, 0, 0};
 		  vector int v2;
-		  asm ("xxlor %0,%1,%1" : "=wa" (v2) : "wa" (v1));
+		  asm volatile ("xxlor %0,%1,%1" : "=wa" (v2) : "wa" (v1));
 		  return 0;
 		}
 	    } $options
@@ -3588,7 +3588,7 @@ proc check_vmx_hw_available { } {
 		{
 		  vector int v1 = {0, 0, 0, 0};
 		  vector int v2;
-		  asm ("vor %0,%1,%1" : "=v" (v2) : "v" (v1));
+		  asm volatile ("vor %0,%1,%1" : "=v" (v2) : "v" (v1));
 		  return 0;
 		}
 	    } $options