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jeremybenn |
/* Copyright (C) 2004 Free Software Foundation.
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Verify that builtin math functions (with fixed point return types)
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are converted to smaller FP types correctly by the compiler.
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Written by Kaveh Ghazi, 2004-05-01. */
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/* { dg-do link } */
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/* { dg-options "-ffast-math" } */
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/* { dg-add-options c99_runtime } */
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#include "../builtins-config.h"
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#define PROTOTYPE1_RET(FN, RET) \
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extern RET FN(double); \
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extern RET FN##f(float); \
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extern RET FN##l(long double);
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/* Test converting math builtins to narrower FP types based on if the
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argument is a narrower type (perhaps implicitly) cast to a wider
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one. */
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#define INNER_CAST1(MATHFN, RET) \
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PROTOTYPE1_RET (MATHFN, RET); \
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extern void link_failure_inner_##MATHFN##l_##MATHFN(void); \
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extern void link_failure_inner_##MATHFN##l_##MATHFN##f(void); \
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extern void link_failure_inner_##MATHFN##_##MATHFN##f(void); \
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if (sizeof (long double) > sizeof (double) \
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&& MATHFN##l(d1) != MATHFN(d1)) \
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link_failure_inner_##MATHFN##l_##MATHFN(); \
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if (sizeof (long double) > sizeof (float) \
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&& MATHFN##l(f1) != MATHFN##f(f1)) \
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link_failure_inner_##MATHFN##l_##MATHFN##f(); \
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if (sizeof (long double) > sizeof (float) \
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&& MATHFN##l((double)f1) != MATHFN##f(f1)) \
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link_failure_inner_##MATHFN##l_##MATHFN##f(); \
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if (sizeof (double) > sizeof (float) \
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&& MATHFN(f1) != MATHFN##f(f1)) \
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link_failure_inner_##MATHFN##_##MATHFN##f()
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void __attribute__ ((__noinline__)) test (double d1, float f1)
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{
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#ifdef __OPTIMIZE__
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#ifdef HAVE_C99_RUNTIME
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/* We're converting to implicitly generated C99 functions. */
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INNER_CAST1 (__builtin_lceil, long);
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INNER_CAST1 (__builtin_llceil, long long);
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INNER_CAST1 (__builtin_lfloor, long);
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INNER_CAST1 (__builtin_llfloor, long long);
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INNER_CAST1 (lround, long);
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INNER_CAST1 (llround, long long);
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INNER_CAST1 (lrint, long);
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INNER_CAST1 (llrint, long long);
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#endif /* HAVE_C99_RUNTIME */
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#endif /* __OPTIMIZE__ */
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}
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int main (void)
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{
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test (1, 2);
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return 0;
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}
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