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