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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
57ca6897 DV |
2 | #undef _GNU_SOURCE |
3 | #define _GNU_SOURCE 1 | |
4 | #undef __USE_GNU | |
5 | #define __USE_GNU 1 | |
6 | #include <unistd.h> | |
7 | #include <stdlib.h> | |
8 | #include <string.h> | |
9 | #include <stdio.h> | |
10 | #include <signal.h> | |
11 | #include <sys/types.h> | |
12 | #include <sys/select.h> | |
13 | #include <sys/time.h> | |
14 | #include <sys/wait.h> | |
15 | ||
16 | #define TEST(insn) \ | |
17 | long double __attribute__((noinline)) insn(long flags) \ | |
18 | { \ | |
19 | long double out; \ | |
20 | asm ("\n" \ | |
21 | " push %1""\n" \ | |
22 | " popf""\n" \ | |
23 | " fldpi""\n" \ | |
24 | " fld1""\n" \ | |
25 | " " #insn " %%st(1), %%st" "\n" \ | |
26 | " ffree %%st(1)" "\n" \ | |
27 | : "=t" (out) \ | |
28 | : "r" (flags) \ | |
29 | ); \ | |
30 | return out; \ | |
31 | } | |
32 | ||
33 | TEST(fcmovb) | |
34 | TEST(fcmove) | |
35 | TEST(fcmovbe) | |
36 | TEST(fcmovu) | |
37 | TEST(fcmovnb) | |
38 | TEST(fcmovne) | |
39 | TEST(fcmovnbe) | |
40 | TEST(fcmovnu) | |
41 | ||
42 | enum { | |
43 | CF = 1 << 0, | |
44 | PF = 1 << 2, | |
45 | ZF = 1 << 6, | |
46 | }; | |
47 | ||
48 | void sighandler(int sig) | |
49 | { | |
50 | printf("[FAIL]\tGot signal %d, exiting\n", sig); | |
51 | exit(1); | |
52 | } | |
53 | ||
54 | int main(int argc, char **argv, char **envp) | |
55 | { | |
56 | int err = 0; | |
57 | ||
58 | /* SIGILL triggers on 32-bit kernels w/o fcomi emulation | |
59 | * when run with "no387 nofxsr". Other signals are caught | |
60 | * just in case. | |
61 | */ | |
62 | signal(SIGILL, sighandler); | |
63 | signal(SIGFPE, sighandler); | |
64 | signal(SIGSEGV, sighandler); | |
65 | ||
66 | printf("[RUN]\tTesting fcmovCC instructions\n"); | |
67 | /* If fcmovCC() returns 1.0, the move wasn't done */ | |
68 | err |= !(fcmovb(0) == 1.0); err |= !(fcmovnb(0) != 1.0); | |
69 | err |= !(fcmove(0) == 1.0); err |= !(fcmovne(0) != 1.0); | |
70 | err |= !(fcmovbe(0) == 1.0); err |= !(fcmovnbe(0) != 1.0); | |
71 | err |= !(fcmovu(0) == 1.0); err |= !(fcmovnu(0) != 1.0); | |
72 | ||
73 | err |= !(fcmovb(CF) != 1.0); err |= !(fcmovnb(CF) == 1.0); | |
74 | err |= !(fcmove(CF) == 1.0); err |= !(fcmovne(CF) != 1.0); | |
75 | err |= !(fcmovbe(CF) != 1.0); err |= !(fcmovnbe(CF) == 1.0); | |
76 | err |= !(fcmovu(CF) == 1.0); err |= !(fcmovnu(CF) != 1.0); | |
77 | ||
78 | err |= !(fcmovb(ZF) == 1.0); err |= !(fcmovnb(ZF) != 1.0); | |
79 | err |= !(fcmove(ZF) != 1.0); err |= !(fcmovne(ZF) == 1.0); | |
80 | err |= !(fcmovbe(ZF) != 1.0); err |= !(fcmovnbe(ZF) == 1.0); | |
81 | err |= !(fcmovu(ZF) == 1.0); err |= !(fcmovnu(ZF) != 1.0); | |
82 | ||
83 | err |= !(fcmovb(PF) == 1.0); err |= !(fcmovnb(PF) != 1.0); | |
84 | err |= !(fcmove(PF) == 1.0); err |= !(fcmovne(PF) != 1.0); | |
85 | err |= !(fcmovbe(PF) == 1.0); err |= !(fcmovnbe(PF) != 1.0); | |
86 | err |= !(fcmovu(PF) != 1.0); err |= !(fcmovnu(PF) == 1.0); | |
87 | ||
88 | if (!err) | |
89 | printf("[OK]\tfcmovCC\n"); | |
90 | else | |
91 | printf("[FAIL]\tfcmovCC errors: %d\n", err); | |
92 | ||
93 | return err; | |
94 | } |