Viewing file:  copysign_2.c (1.22 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O2 --save-temps" } */
float fabsf (float);
float
check (float x, float y)
{
return __builtin_copysignf (x, y);
}
float
check1 (float x)
{
return __builtin_copysignf (x, 1.0);
}
float
check2 (float x)
{
return __builtin_copysignf (1.0, x);
}
float
check3 (float x)
{
return -__builtin_copysignf (x, 1.0);
}
float
check4 (float x, float y)
{
return x * __builtin_copysignf (x, y);
}
float
check5 (float x, float y)
{
return __builtin_copysignf (-x, -y);
}
int
main (int argc, char** argv)
{
float x = 2.0f;
float y = -5.0f;
float epsilon = 0.00001f;
float expected = -2.0f;
if (fabsf (check (x, y) - expected) >= epsilon)
__builtin_abort ();
expected = 2.0f;
if (fabsf (check1 (x) - expected) >= epsilon)
__builtin_abort ();
expected = 1.0f;
if (fabsf (check2 (x) - expected) >= epsilon)
__builtin_abort ();
expected = -2.0f;
if (fabsf (check3 (x) - expected) >= epsilon)
__builtin_abort ();
expected = -4.0f;
if (fabsf (check4 (x, y) - expected) >= epsilon)
__builtin_abort ();
expected = 2.0f;
if (fabsf (check5 (x, y) - expected) >= epsilon)
__builtin_abort ();
}
/* { dg-final { scan-assembler-not "copysign\tw" } } */
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