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]$
