95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#undef _GNU_SOURCE
|
|
#define _GNU_SOURCE 1
|
|
#undef __USE_GNU
|
|
#define __USE_GNU 1
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <signal.h>
|
|
#include <sys/types.h>
|
|
#include <sys/select.h>
|
|
#include <sys/time.h>
|
|
#include <sys/wait.h>
|
|
|
|
#define TEST(insn) \
|
|
long double __attribute__((noinline)) insn(long flags) \
|
|
{ \
|
|
long double out; \
|
|
asm ("\n" \
|
|
" push %1""\n" \
|
|
" popf""\n" \
|
|
" fldpi""\n" \
|
|
" fld1""\n" \
|
|
" " #insn " %%st(1), %%st" "\n" \
|
|
" ffree %%st(1)" "\n" \
|
|
: "=t" (out) \
|
|
: "r" (flags) \
|
|
); \
|
|
return out; \
|
|
}
|
|
|
|
TEST(fcmovb)
|
|
TEST(fcmove)
|
|
TEST(fcmovbe)
|
|
TEST(fcmovu)
|
|
TEST(fcmovnb)
|
|
TEST(fcmovne)
|
|
TEST(fcmovnbe)
|
|
TEST(fcmovnu)
|
|
|
|
enum {
|
|
CF = 1 << 0,
|
|
PF = 1 << 2,
|
|
ZF = 1 << 6,
|
|
};
|
|
|
|
void sighandler(int sig)
|
|
{
|
|
printf("[FAIL]\tGot signal %d, exiting\n", sig);
|
|
exit(1);
|
|
}
|
|
|
|
int main(int argc, char **argv, char **envp)
|
|
{
|
|
int err = 0;
|
|
|
|
/* SIGILL triggers on 32-bit kernels w/o fcomi emulation
|
|
* when run with "no387 nofxsr". Other signals are caught
|
|
* just in case.
|
|
*/
|
|
signal(SIGILL, sighandler);
|
|
signal(SIGFPE, sighandler);
|
|
signal(SIGSEGV, sighandler);
|
|
|
|
printf("[RUN]\tTesting fcmovCC instructions\n");
|
|
/* If fcmovCC() returns 1.0, the move wasn't done */
|
|
err |= !(fcmovb(0) == 1.0); err |= !(fcmovnb(0) != 1.0);
|
|
err |= !(fcmove(0) == 1.0); err |= !(fcmovne(0) != 1.0);
|
|
err |= !(fcmovbe(0) == 1.0); err |= !(fcmovnbe(0) != 1.0);
|
|
err |= !(fcmovu(0) == 1.0); err |= !(fcmovnu(0) != 1.0);
|
|
|
|
err |= !(fcmovb(CF) != 1.0); err |= !(fcmovnb(CF) == 1.0);
|
|
err |= !(fcmove(CF) == 1.0); err |= !(fcmovne(CF) != 1.0);
|
|
err |= !(fcmovbe(CF) != 1.0); err |= !(fcmovnbe(CF) == 1.0);
|
|
err |= !(fcmovu(CF) == 1.0); err |= !(fcmovnu(CF) != 1.0);
|
|
|
|
err |= !(fcmovb(ZF) == 1.0); err |= !(fcmovnb(ZF) != 1.0);
|
|
err |= !(fcmove(ZF) != 1.0); err |= !(fcmovne(ZF) == 1.0);
|
|
err |= !(fcmovbe(ZF) != 1.0); err |= !(fcmovnbe(ZF) == 1.0);
|
|
err |= !(fcmovu(ZF) == 1.0); err |= !(fcmovnu(ZF) != 1.0);
|
|
|
|
err |= !(fcmovb(PF) == 1.0); err |= !(fcmovnb(PF) != 1.0);
|
|
err |= !(fcmove(PF) == 1.0); err |= !(fcmovne(PF) != 1.0);
|
|
err |= !(fcmovbe(PF) == 1.0); err |= !(fcmovnbe(PF) != 1.0);
|
|
err |= !(fcmovu(PF) != 1.0); err |= !(fcmovnu(PF) == 1.0);
|
|
|
|
if (!err)
|
|
printf("[OK]\tfcmovCC\n");
|
|
else
|
|
printf("[FAIL]\tfcmovCC errors: %d\n", err);
|
|
|
|
return err;
|
|
}
|