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/* Copyright (C) 2010 Free Software Foundation.
Verify that folding of built-in cproj is correctly performed by the
compiler.
Origin: Kaveh R. Ghazi, April 9, 2010. */
/* { dg-do link } */
/* { dg-add-options ieee } */
/* All references to link_error should go away at compile-time. The
argument is the __LINE__ number. It appears in the tree dump file
and aids in debugging should any of the tests fail. */
extern void link_error(int);
#define CPROJ(X) __builtin_cproj(X)
#define CPROJF(X) __builtin_cprojf(X)
#define CPROJL(X) __builtin_cprojl(X)
#define INF __builtin_inff()
#define I 1i
#define CPSGN(X,Y) __builtin_copysignf((X),(Y))
#define CIMAG(X) __builtin_cimagf(X)
#define CREAL(X) __builtin_crealf(X)
/* Check that the signs of the real and/or imaginary parts of two
complex numbers match. */
#define CKSGN(X,Y) (CKSGN_R(X,Y) || CKSGN_I(X,Y))
#define CKSGN_R(X,Y) (CPSGN(1,CREAL(X)) != CPSGN(1,CREAL(Y)))
#define CKSGN_I(X,Y) (CPSGN(1,CIMAG(X)) != CPSGN(1,CIMAG(Y)))
/* Test that (cproj(X) == ZERO+Inf) and that the signs of the
imaginary parts match. ZERO is +/- 0i. */
#define TEST_CST_INF(X,ZERO) do { \
if (CPROJF(X) != ZERO+INF || CKSGN_I(CPROJF(X),ZERO+INF)) \
link_error(__LINE__); \
if (CPROJ(X) != ZERO+INF || CKSGN_I(CPROJ(X),ZERO+INF)) \
link_error(__LINE__); \
if (CPROJL(X) != ZERO+INF || CKSGN_I(CPROJL(X),ZERO+INF)) \
link_error(__LINE__); \
} while (0)
/* Test that (cproj(X) == X) for all finite (X). */
#define TEST_CST(X) do { \
if (CPROJF(X) != (X) || CKSGN(CPROJF(X),(X))) \
link_error(__LINE__); \
} while (0)
/* Test that cproj(X + I*INF) -> (ZERO + INF), where ZERO is +-0i.
NEG is either blank or a minus sign when ZERO is negative. */
#define TEST_IMAG_INF(NEG,ZERO) do { \
if (CPROJF(f+I*NEG INF) != ZERO+INF \
|| CKSGN_I (CPROJF(f+I*NEG INF), ZERO+INF)) \
link_error(__LINE__); \
if (CPROJ(d+I*NEG INF) != ZERO+INF \
|| CKSGN_I (CPROJ(d+I*NEG INF), ZERO+INF)) \
link_error(__LINE__); \
if (CPROJL(ld+I*NEG INF) != ZERO+INF \
|| CKSGN_I (CPROJL(ld+I*NEG INF), ZERO+INF)) \
link_error(__LINE__); \
} while (0)
/* Like TEST_IMAG_INF, but check that side effects are honored. */
#define TEST_IMAG_INF_SIDE_EFFECT(NEG,ZERO) do { \
int side = 4; \
if (CPROJF(++side+I*NEG INF) != ZERO+INF \
|| CKSGN_I (CPROJF(++side+I*NEG INF), ZERO+INF)) \
link_error(__LINE__); \
if (CPROJ(++side+I*NEG INF) != ZERO+INF \
|| CKSGN_I (CPROJ(++side+I*NEG INF), ZERO+INF)) \
link_error(__LINE__); \
if (CPROJL(++side+I*NEG INF) != ZERO+INF \
|| CKSGN_I (CPROJL(++side+I*NEG INF), ZERO+INF)) \
link_error(__LINE__); \
if (side != 10) \
link_error(__LINE__); \
} while (0)
/* Test that cproj(INF, POSITIVE) -> INF+0i. NEG is either blank or a
minus sign to test negative INF. */
#define TEST_REAL_INF(NEG) do { \
__real cf = NEG INF; \
__imag cf = (x ? 4 : 5); \
if (CPROJF(cf) != INF \
|| CKSGN_I (CPROJF(cf), INF)) \
link_error(__LINE__); \
__real cd = NEG INF; \
__imag cd = (x ? 4 : 5); \
if (CPROJ(cd) != INF \
|| CKSGN_I (CPROJ(cd), INF)) \
link_error(__LINE__); \
__real cld = NEG INF; \
__imag cld = (x ? 4 : 5); \
if (CPROJL(cld) != INF \
|| CKSGN_I (CPROJL(cld), INF)) \
link_error(__LINE__); \
} while (0)
/* Like TEST_REAL_INF, but check that side effects are honored. */
#define TEST_REAL_INF_SIDE_EFFECT(NEG) do { \
int side = -9; \
__real cf = NEG INF; \
__imag cf = (x ? 4 : 5); \
if (CPROJF((++side,cf)) != INF \
|| CKSGN_I (CPROJF((++side,cf)), INF)) \
link_error(__LINE__); \
__real cd = NEG INF; \
__imag cd = (x ? 4 : 5); \
if (CPROJ((++side,cd)) != INF \
|| CKSGN_I (CPROJ((++side,cd)), INF)) \
link_error(__LINE__); \
__real cld = NEG INF; \
__imag cld = (x ? 4 : 5); \
if (CPROJL((++side,cld)) != INF \
|| CKSGN_I (CPROJL((++side,cld)), INF)) \
link_error(__LINE__); \
if (side != -3) \
link_error(__LINE__); \
} while (0)
void foo (_Complex long double cld, _Complex double cd, _Complex float cf,
long double ld, double d, float f, int x)
{
TEST_CST_INF (INF+0I, 0);
TEST_CST_INF (INF-0I, -0.FI);
TEST_CST_INF (INF+4I, 0);
TEST_CST_INF (INF-4I, -0.FI);
TEST_CST_INF (-INF+0I, 0);
TEST_CST_INF (-INF-0I, -0.FI);
TEST_CST_INF (-INF+4I, 0);
TEST_CST_INF (-INF-4I, -0.FI);
TEST_CST_INF (0+I*INF, 0);
TEST_CST_INF (0-I*INF, -0.FI);
TEST_CST_INF (23+I*INF, 0);
TEST_CST_INF (23-I*INF, -0.FI);
TEST_CST_INF (-0.F+I*INF, 0);
TEST_CST_INF (-0.F-I*INF, -0.FI);
TEST_CST_INF (-23+I*INF, 0);
TEST_CST_INF (-23-I*INF, -0.FI);
TEST_CST_INF (INF+I*INF, 0);
TEST_CST_INF (INF-I*INF, -0.FI);
TEST_CST_INF (-INF+I*INF, 0);
TEST_CST_INF (-INF-I*INF, -0.FI);
TEST_CST (0);
TEST_CST (-0.F);
TEST_CST (0-0.FI);
TEST_CST (-0.F-0.FI);
TEST_CST (22+3I);
TEST_CST (22-3I);
TEST_CST (-22+3I);
TEST_CST (-22-3I);
TEST_IMAG_INF (,0.FI);
TEST_IMAG_INF (-,-0.FI);
#ifdef __OPTIMIZE__
TEST_REAL_INF( );
TEST_REAL_INF(-);
TEST_IMAG_INF_SIDE_EFFECT (,0.FI);
TEST_IMAG_INF_SIDE_EFFECT (-,-0.FI);
TEST_REAL_INF_SIDE_EFFECT( );
TEST_REAL_INF_SIDE_EFFECT(-);
#endif
return;
}
int main (void)
{
return 0;
}
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