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/* Test complex arithmetic with signed zeros. Pure complex
multiplication with -1.0 + 0.0i. */
/* { dg-do run } */
/* { dg-options "-std=gnu99" { target c } } */
#include "complex-sign.h"
#define CHECK_MUL_INT(TYPE, COPY, ZERO, ZEROI, ONE, S1, S2, SR, SI) \
do { \
_Complex TYPE a1, b1, c1; \
volatile _Complex TYPE a2, b2, c2; \
a1 = ENCODE(ZERO, ZEROI, S1, S2); \
CHECK_RES (a1, COPY, S1, S2); \
b1 = -ONE + ZEROI; \
c1 = a1 * b1; \
CHECK_RES (c1, COPY, SR, SI); \
c1 = a1 * (-ONE + ZEROI); \
CHECK_RES (c1, COPY, SR, SI); \
a2 = ENCODE(ZERO, ZEROI, S1, S2); \
CHECK_RES (a2, COPY, S1, S2); \
b2 = -ONE + ZEROI; \
c2 = a2 * b2; \
CHECK_RES (c2, COPY, SR, SI); \
c2 = a2 * (-ONE + ZEROI); \
CHECK_RES (c2, COPY, SR, SI); \
} while (0)
#define CHECK_MUL(TYPE, COPY, ZERO, ZEROI, ONE) \
do { \
CHECK_MUL_INT (TYPE, COPY, ZERO, ZEROI, ONE, +, +, -, +); \
CHECK_MUL_INT (TYPE, COPY, ZERO, ZEROI, ONE, +, -, +, +); \
CHECK_MUL_INT (TYPE, COPY, ZERO, ZEROI, ONE, -, +, +, -); \
CHECK_MUL_INT (TYPE, COPY, ZERO, ZEROI, ONE, -, -, +, +); \
} while (0)
void
check_mul_float (void)
{
#ifndef __SPU__
CHECK_MUL (float, __builtin_copysignf, 0.0f, 0.0if, 1.0f);
#endif
}
void
check_mul_double (void)
{
CHECK_MUL (double, __builtin_copysign, 0.0, 0.0i, 1.0);
}
void
check_mul_long_double (void)
{
CHECK_MUL (long double, __builtin_copysignl, 0.0l, 0.0il, 1.0l);
}
int
main (void)
{
check_mul_float ();
check_mul_double ();
check_mul_long_double ();
exit (0);
}
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