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annotate gcc/testsuite/g++.target/i386/mv17.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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131
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1 // Test case to check if Multiversioning works for BMI and BMI2.
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2
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3 // { dg-do run }
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4 // { dg-require-ifunc "" }
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5 // { dg-options "-O2" }
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6
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7 #include <assert.h>
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8
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9 // Check BMI feature selection works
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10 int foo () __attribute__((target("default")));
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11 int foo () __attribute__((target("bmi")));
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12 int foo () __attribute__((target("bmi2")));
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13
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14 // Check specialized versions for archs with BMI is chosen over generic BMI versions.
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15 int bar () __attribute__((target("default")));
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16 int bar () __attribute__((target("bmi")));
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17 int bar () __attribute__((target("bmi2")));
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18 int bar () __attribute__((target("arch=btver2")));
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19 int bar () __attribute__((target("arch=haswell")));
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20
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21 int main ()
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22 {
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23 int val = foo ();
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24
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25 if (__builtin_cpu_supports ("bmi2"))
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26 assert (val == 2);
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27 else if (__builtin_cpu_supports ("bmi"))
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28 assert (val == 1);
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29 else
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30 assert (val == 0);
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31
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32 val = bar ();
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33
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34 if (__builtin_cpu_is ("btver2"))
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35 assert (val == 5);
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36 else if (__builtin_cpu_is ("haswell"))
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37 assert (val == 6);
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38 else if (__builtin_cpu_supports ("bmi2"))
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39 assert (val == 2);
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40 else if (__builtin_cpu_supports ("bmi"))
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41 assert (val == 1);
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42 else
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43 assert (val == 0);
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44
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45 return 0;
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46 }
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47
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48 int __attribute__ ((target("default")))
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49 foo ()
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50 {
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51 return 0;
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52 }
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53
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54 int __attribute__ ((target("bmi")))
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55 foo ()
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56 {
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57 return 1;
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58 }
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59 int __attribute__ ((target("bmi2")))
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60 foo ()
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61 {
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62 return 2;
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63 }
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64
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65 int __attribute__ ((target("default")))
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66 bar ()
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67 {
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68 return 0;
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69 }
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70
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71 int __attribute__ ((target("bmi")))
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72 bar ()
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73 {
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74 return 1;
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75 }
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76 int __attribute__ ((target("bmi2")))
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77 bar ()
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78 {
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79 return 2;
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80 }
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81
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82 int __attribute__ ((target("arch=btver2")))
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83 bar ()
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84 {
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85 return 5;
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86 }
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87
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88 int __attribute__ ((target("arch=haswell")))
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89 bar ()
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90 {
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91 return 6;
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92 }
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93