[gcc r15-11508] testsuite: explicitly specify expected endianness [PR126650]

[Alexandre Oliva]

https://gcc.gnu.org/g:48e45185200154befd9f18bb5a4a3496270d0842

commit r15-11508-g48e45185200154befd9f18bb5a4a3496270d0842
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Wed Aug 26 01:02:50 2026 -0300

    testsuite: explicitly specify expected endianness [PR126650]
    
    The pr126650.c testcase carries an expectation that the data
    structures are little endian; we don't get the expected results
    otherwise.  Make the nonscalars explicitly little-endian.
    
    
    for  gcc/testsuite/ChangeLog
    
            PR tree-optimization/126650
            * gcc.dg/torture/pr126650.c: Be explicit about endianness
            expectations.
    (cherry picked from commit ea6bfeafc48af3e6dab598376dda4586752ed990)

Diff:
---
 gcc/testsuite/gcc.dg/torture/pr126650.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/gcc.dg/torture/pr126650.c b/gcc/testsuite/gcc.dg/torture/pr126650.c
index 166705d9cfe6..befeba5259a4 100644
--- a/gcc/testsuite/gcc.dg/torture/pr126650.c
+++ b/gcc/testsuite/gcc.dg/torture/pr126650.c
@@ -1,4 +1,4 @@
-/* { dg-do run } */
+/* { dg-do run { target { le || be } } } */
 
 #include <stdarg.h>
 #include <stdlib.h>
@@ -17,14 +17,14 @@ void __attribute__((noipa)) foo (int n, ...)
 
 int main()
 {
-  struct b {
+  struct __attribute__ ((scalar_storage_order ("little-endian"))) b {
     int : 7;
     int : 2;
     int : 6;
     int : 3;
     int c : 7;
   };
-  union {
+  union __attribute__ ((scalar_storage_order ("little-endian"))) {
     int d;
     struct b bf;
     char e[4];