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111
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1 /* { dg-do run } */
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2 /* { dg-options "-O2 -fmath-errno -fdump-tree-cdce-details -lm" } */
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3 /* { dg-require-effective-target int32plus } */
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131
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4 /* { dg-final { scan-tree-dump "cdce1.c:16: .* function call is shrink-wrapped into error conditions\." "cdce" } } */
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111
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5 /* { dg-require-effective-target large_double } */
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6
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7 #include <stdlib.h>
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8 #include <math.h>
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9 #include <errno.h>
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10 int total_err_count = 0;
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11 double foo_opt (int x, double y) __attribute__((noinline));
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12 double foo_opt (int x, double y)
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13 {
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14 double yy = 0;
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15 errno = 0;
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16 yy = pow (x, y * y);
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17 return 0;
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18 }
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19
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20 double foo (int x, double y) __attribute__((noinline));
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21 double foo (int x, double y)
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22 {
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23 double yy = 0;
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24 errno = 0;
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25 yy = pow (x, y * y);
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26 return yy;
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27 }
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28
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29 int test (double (*fp)(int x, double y))
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30 {
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31 int i,x;
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32
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33 x = 127;
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34 for (i = 30; i < 300; i++)
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35 {
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36 fp (x, i);
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37 if (errno)
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38 total_err_count ++;
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39 }
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40
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41 x = -300;
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42 for (i = 100; i < 300; i++)
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43 {
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44 fp (x, i);
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45 if (errno)
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46 total_err_count ++;
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47 }
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48
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49 x = 65577;
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50 for (i = 60; i < 200; i++)
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51 {
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52 fp (x, i);
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53 if (errno)
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54 total_err_count ++;
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55 }
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56
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57 x = 65577 * 127;
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58 for (i = 1; i < 100; i++)
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59 {
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60 fp (x, i);
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61 if (errno)
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62 total_err_count ++;
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63 }
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64
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65 return total_err_count;
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66 }
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67
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68 int main ()
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69 {
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70 int en1, en2;
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71 total_err_count = 0;
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72 en1 = test (foo_opt);
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73 total_err_count = 0;
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74 en2 = test (foo);
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75
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76 if (en1 != en2)
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77 abort ();
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78
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79 return 0;
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80 }
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