[Bug testsuite/126927] FAIL: gcc.target/x86_64/abi/ms-sysv/ms-sysv.c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126927

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
          Component|target                      |testsuite
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2026-08-18

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
There are

static __attribute__((noipa, noinline))
void do_tests_0001 (long a, long b, long c, long d, long e)
{
  long ret;

  init_test (msabi_00_r5, "msabi_00_r5", ALIGNMENT_MISALIGNED,
SHRINK_WRAP_NONE, a + b + c + d + e); 
  __asm__ __volatile__ ("subq $8,%%rsp":::"cc");
  ret = do_test_unaligned (a, b, c, d, e); 
  __asm__ __volatile__ ("addq $8,%%rsp":::"cc");
  check_results (ret);
}

When compiler saves incoming parameters on stack and retrieves it from
stack before calling do_test_unaligned with -march=znver4, the wrong
value is passed to do_test_unaligned.