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jeremybenn |
/* Copyright (C) 2008 Free Software Foundation.
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Verify that __builtin_isinf_sign folds correctly.
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Origin: Kaveh R. Ghazi, May 17, 2008. */
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/* { dg-do link } */
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/* All references to link_error should go away at compile-time. */
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extern void link_error(int);
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void __attribute__ ((__noinline__))
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foo (float f, double d, long double ld)
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{
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/* Test the generic expansion of isinf_sign. */
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if (__builtin_isinf_sign(f)
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!= (__builtin_isinf(f) ? (__builtin_signbitf(f) ? -1 : 1) : 0))
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link_error (__LINE__);
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if (__builtin_isinf_sign(d)
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!= (__builtin_isinf(d) ? (__builtin_signbit(d) ? -1 : 1) : 0))
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link_error (__LINE__);
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if (__builtin_isinf_sign(ld)
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!= (__builtin_isinf(ld) ? (__builtin_signbitl(ld) ? -1 : 1) : 0))
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link_error (__LINE__);
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/* In boolean contexts, GCC will fold the inner conditional
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expression to 1. So isinf_sign folds to plain isinf. */
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if ((_Bool)__builtin_isinf_sign(f) != (__builtin_isinf(f) != 0))
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link_error (__LINE__);
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if ((_Bool)__builtin_isinf_sign(d) != (__builtin_isinf(d) != 0))
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link_error (__LINE__);
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if ((_Bool)__builtin_isinf_sign(ld) != (__builtin_isinf(ld) != 0))
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link_error (__LINE__);
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if ((__builtin_isinf_sign(f) != 0) != (__builtin_isinf(f) != 0))
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link_error (__LINE__);
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if ((__builtin_isinf_sign(d) != 0) != (__builtin_isinf(d) != 0))
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link_error (__LINE__);
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if ((__builtin_isinf_sign(ld) != 0) != (__builtin_isinf(ld) != 0))
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link_error (__LINE__);
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if ((__builtin_isinf_sign(f) ? 5 : 6) != (__builtin_isinf(f) ? 5 : 6))
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link_error (__LINE__);
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if ((__builtin_isinf_sign(d) ? 5 : 6) != (__builtin_isinf(d) ? 5 : 6))
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link_error (__LINE__);
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if ((__builtin_isinf_sign(ld) ? 5 : 6) != (__builtin_isinf(ld) ? 5 : 6))
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link_error (__LINE__);
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}
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int main (void)
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{
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foo (1, 2, 3);
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return 0;
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}
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