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111
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1 /* PR middle-end/27959 */
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2 /* { dg-do run { target { int32plus } } } */
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3 /* { dg-options "-O2" } */
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4 /* { dg-options "-O2 -mtune=z990" { target s390*-*-* } } */
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5
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6 extern void abort (void);
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7
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8 struct B
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9 {
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10 unsigned int b1, b2, b3;
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11 char b4;
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12 };
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13
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14 struct C
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15 {
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16 char c1;
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17 };
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18
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19 struct D
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20 {
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21 char *d1;
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22 struct C **d2;
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23 unsigned int d3;
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24 };
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25
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26 void
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27 __attribute__((noinline))
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28 foo (void *x, struct B *y, unsigned int *z)
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29 {
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30 if (x)
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31 abort ();
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32 if (y->b1 != 7 || y->b2 != 5 || y->b3 != 3 || y->b4)
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33 abort ();
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34 if (*z != 2)
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35 abort ();
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36 }
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37
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38 int
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39 __attribute__((noinline))
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40 baz (unsigned int *x, unsigned int y)
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41 {
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42 asm volatile ("" : : "r" (&x), "r" (&y) : "memory");
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43 return *x + y;
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44 }
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45
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46 inline int bar (unsigned int *x, unsigned int y)
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47 {
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48 if (y < *x)
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49 return 0;
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50 return baz (x, y);
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51 }
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52
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53 unsigned int *
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54 __attribute__((noinline))
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55 test (struct D *x, unsigned int *y)
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56 {
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57 struct B b;
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58 unsigned int c;
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59
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60 bar (y, x->d3);
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61 if ((*(x->d2))->c1)
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62 c = ((unsigned char) x->d1[0]
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63 + ((unsigned char) x->d1[1] << 8)
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64 + ((unsigned char) x->d1[2] << 16)
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65 + ((short) x->d1[3] << 24));
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66 else
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67 {
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68 int d;
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69 ((char *) &d)[0] = x->d1[0];
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70 ((char *) &d)[1] = x->d1[1];
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71 ((char *) &d)[2] = x->d1[2];
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72 ((char *) &d)[3] = x->d1[3];
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73 c = d;
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74 }
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75 b.b4 = 0;
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76 b.b1 = c / 10000L % 10000;
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77 b.b2 = c / 100 % 100;
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78 b.b3 = c % 100;
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79 foo (0, &b, y);
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80 return y;
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81 }
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82
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83 int
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84 main (void)
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85 {
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86 unsigned int x = 900070503;
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87 unsigned int y = 2;
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88 struct C c = { 0 }, *cptr = &c;
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89 struct D d = { (char *) &x, &cptr, 0 };
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90 if (test (&d, &y) != &y)
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91 abort ();
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92 return 0;
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93 }
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