8586aeeb9c
PR libmudflap/36397 * tree-mudflap.c (mf_xform_derefs_1): Handle VIEW_CONVERT_EXPR. * testsuite/libmudflap.c/pass64-frag.c: New test. From-SVN: r140374
39 lines
649 B
C
39 lines
649 B
C
/* PR libmudflap/36397 */
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/* { dg-do run } */
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/* { dg-options "-O -fmudflap -fno-strict-aliasing -lmudflap" } */
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struct A
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{
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int a[2];
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};
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long long int x;
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int __attribute__ ((noinline))
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baz (long long int *x)
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{
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return *x;
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}
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int __attribute__ ((noinline))
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foo (int i)
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{
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if (i > 10)
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return baz (&x);
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return ((struct A *) &x)->a[i];
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}
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int
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main (void)
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{
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if (sizeof (long long) == 2 * sizeof (int)
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&& sizeof (long long) == sizeof (struct A))
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{
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struct A a = { .a[0] = 10, .a[1] = 20 };
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__builtin_memcpy (&x, &a, sizeof (x));
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if (foo (0) != 10 || foo (1) != 20)
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__builtin_abort ();
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}
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return 0;
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}
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