[Bug target/89750] New: Wrong code for _mm_comi_round_ss

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89750

            Bug ID: 89750
           Summary: Wrong code for _mm_comi_round_ss
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: ubizjak at gmail dot com
  Target Milestone: ---
            Target: i386, x86-64

[hjl@gnu-cfl-2 pr86444]$ cat b.c
#include <immintrin.h>
__m128 x, y;
void init_regs()
{
  x = _mm_set_ps(1.0,1.0,1.0,1.0);
  y = _mm_set_ps(2.0,2.0,2.0,2.0);
}
int
avx512f_test (void)
{
  return _mm_comi_round_ss (x, y, _CMP_LT_OS, _MM_FROUND_NO_EXC);
}

int main()
{
  init_regs();
  if (!avx512f_test())
    __builtin_abort ();
  return 0;
}
[hjl@gnu-cfl-2 pr86444]$  gcc -O2 -mavx512f b.c
[hjl@gnu-cfl-2 pr86444]$ ./sde -- ./a.out 
Aborted
[hjl@gnu-cfl-2 pr86444]$  clang -O2 -mavx512f b.c
[hjl@gnu-cfl-2 pr86444]$ ./sde -- ./a.out 
[hjl@gnu-cfl-2 pr86444]$