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/* Copyright (C) 2004 Free Software Foundation.
Verify that GCC can determine which built-in functions produce a
nonnegative result.
Written by Kaveh Ghazi, 2004-03-10. */
/* { dg-do link } */
/* { dg-options "-ffast-math" } */
#define PROTOTYPE_RTYPE(FN,RTYPE) extern RTYPE FN(double); \
extern RTYPE FN##f(float); \
extern RTYPE FN##l(long double);
#define PROTOTYPE(FN) extern double FN(double); extern float FN##f(float); \
extern long double FN##l(long double);
#define PROTOTYPE2(FN) extern double FN(double, double); \
extern float FN##f(float, float); \
extern long double FN##l(long double, long double);
#define CPROTOTYPE1(FN) extern double FN(_Complex double); \
extern float FN##f(_Complex float); \
extern long double FN##l(_Complex long double);
#define CPROTOTYPE1(FN) extern double FN(_Complex double); \
extern float FN##f(_Complex float); \
extern long double FN##l(_Complex long double);
#define IPROTOTYPE(FN) extern int FN(int); extern int FN##l(long); \
extern int FN##ll(long long);
#define PROTOTYPE2TYPE2(FN,A2TYPE) extern double FN(double, A2TYPE); \
extern float FN##f(float, A2TYPE); \
extern long double FN##l(long double, A2TYPE);
#define PROTOTYPE2_A2FPTR(FN) extern double FN(double, double *); \
extern float FN##f(float, float *); \
extern long double FN##l(long double, long double *);
extern int signbit (double);
extern int signbitf (float);
extern int signbitl (long double);
void test(double d1, double d2, float f1, float f2,
long double ld1, long double ld2)
{
/* These are always nonnegative. */
#define TEST1(FN) \
extern void link_failure_##FN (void); PROTOTYPE(FN) \
if (signbit(FN(d1)) || signbitf(FN##f(f1)) || signbitl(FN##l(ld1))) \
link_failure_##FN()
#define TEST2(FN) \
extern void link_failure_##FN (void); PROTOTYPE2(FN) \
if (signbit(FN(d1,d2)) || signbitf(FN##f(f1,f2)) || signbitl(FN##l(ld1,ld2))) \
link_failure_##FN()
#define CTEST1(FN) \
extern void link_failure_##FN (void); CPROTOTYPE1(FN) \
if (signbit(FN(d1)) || signbitf(FN##f(f1)) || signbitl(FN##l(ld1))) \
link_failure_##FN()
#define ITEST1(FN) \
extern void link_failure_##FN (void); IPROTOTYPE(FN) \
if (signbit(FN(d1)) || signbitf(FN##l(f1)) || signbitl(FN##ll(ld1))) \
link_failure_##FN()
TEST1 (acos);
TEST1 (acosh);
CTEST1 (cabs);
TEST1 (cosh);
TEST1 (erfc);
TEST1 (exp);
TEST1 (exp10);
TEST1 (exp2);
TEST1 (fabs);
TEST2 (fdim);
TEST2 (hypot);
TEST1 (pow10);
TEST1 (sqrt);
ITEST1 (ffs);
ITEST1 (__builtin_parity);
ITEST1 (__builtin_popcount);
/* These are nonnegative if the first argument is. */
#define ARG1TEST1(FN) \
extern void link_failure_##FN (void); PROTOTYPE(FN) \
if (signbit(FN(fabs(d1))) || signbitf(FN##f(fabsf(f1))) \
|| signbitl(FN##l(fabsl(ld1)))) \
link_failure_##FN()
/* Same, but allow specifying the return type. */
#define ARG1TEST1_RTYPE(FN,RTYPE) \
extern void link_failure_##FN (void); PROTOTYPE_RTYPE(FN,RTYPE) \
if (signbit(FN(fabs(d1))) || signbitf(FN##f(fabsf(f1))) \
|| signbitl(FN##l(fabsl(ld1)))) \
link_failure_##FN()
/* These are nonnegative if the first argument is. */
#define ARG1TEST2(FN) \
extern void link_failure_##FN (void); PROTOTYPE2(FN) \
if (signbit(FN(fabs(d1),d2)) || signbitf(FN##f(fabsf(f1),f2)) \
|| signbitl(FN##l(fabsl(ld1),ld2))) \
link_failure_##FN()
/* These are nonnegative if the second argument is. */
#define ARG2TEST2(FN) \
extern void link_failure_##FN (void); PROTOTYPE2(FN) \
if (signbit(FN(d1,fabs(d2))) || signbitf(FN##f(f1,fabsf(f2))) \
|| signbitl(FN##l(ld1,fabsl(ld2)))) \
link_failure_##FN()
/* These are nonnegative if the first OR second argument is. */
#define ARG2TESTor(FN) \
extern void link_failure_##FN (void); PROTOTYPE2(FN) \
if (signbit(FN(fabs(d1),d2)) || signbitf(FN##f(fabsf(f1),f2)) \
|| signbitl(FN##l(fabsl(ld1),ld2)) || signbit(FN(d1,fabs(d2))) \
|| signbitf(FN##f(f1,fabsf(f2))) || signbitl(FN##l(ld1,fabsl(ld2)))) \
link_failure_##FN()
/* These are nonnegative if the first AND second argument is. */
#define ARG2TESTand(FN) \
extern void link_failure_##FN (void); PROTOTYPE2(FN) \
if (signbit(FN(fabs(d1),fabs(d2))) || signbitf(FN##f(fabsf(f1),fabsf(f2))) \
|| signbitl(FN##l(fabsl(ld1),fabsl(ld2)))) \
link_failure_##FN()
/* These are nonnegative if the first argument is, 2nd arg is an int. */
#define ARG1TEST2_A2INT(FN, INTTYPE) \
extern void link_failure_##FN (void); PROTOTYPE2TYPE2(FN, INTTYPE) \
if (signbit(FN(fabs(d1),d2)) || signbitf(FN##f(fabsf(f1),f2)) \
|| signbitl(FN##l(fabsl(ld1),ld2))) \
link_failure_##FN()
/* These are nonnegative if the first argument is, specify 2nd arg. */
#define ARG2TEST1_A2FPTR(FN) \
extern void link_failure_##FN (void); PROTOTYPE2_A2FPTR(FN) \
if (signbit(FN(fabs(d1),&d2)) || signbitf(FN##f(fabsf(f1),&f2)) \
|| signbitl(FN##l(fabsl(ld1),&ld2))) \
link_failure_##FN()
ARG1TEST1 (asinh);
ARG1TEST1 (atan);
ARG1TEST1 (atanh);
ARG1TEST1 (cbrt);
ARG1TEST1 (ceil);
ARG1TEST1 (erf);
ARG1TEST1 (expm1);
ARG1TEST1 (floor);
ARG1TEST2 (fmod);
ARG1TEST2_A2INT (ldexp, int);
ARG1TEST1_RTYPE (__builtin_llceil, long long);
ARG1TEST1_RTYPE (__builtin_llfloor, long long);
ARG1TEST1_RTYPE (llrint, long long);
ARG1TEST1_RTYPE (llround, long long);
ARG1TEST1_RTYPE (__builtin_lceil, long);
ARG1TEST1_RTYPE (__builtin_lfloor, long);
ARG1TEST1_RTYPE (lrint, long);
ARG1TEST1_RTYPE (lround, long);
/* The modf* functions aren't ever "const" or "pure" even with
-ffast-math so they won't be eliminated and yield a link failure. */
/* ARG2TEST1_A2FPTR (modf);*/
ARG1TEST1 (nearbyint);
ARG1TEST2 (pow);
ARG1TEST1 (rint);
ARG1TEST1 (round);
ARG1TEST2 (scalb);
ARG1TEST2_A2INT (scalbln, long);
ARG1TEST2_A2INT (scalbn, int);
ARG1TEST1_RTYPE (signbit, int);
ARG1TEST1 (significand);
ARG1TEST1 (sinh);
ARG1TEST1 (tanh);
ARG1TEST1 (trunc);
ARG2TESTor (fmax);
ARG2TESTand (fmin);
ARG2TEST2 (copysign);
}
int main (void)
{
return 0;
}
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