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// TESTING: copysign
// TESTING: fabs
// TESTING: isfinite
// TESTING: isinf
// TESTING: isnan
// TESTING: isnormal
// TESTING: signbit
// TESTING: ilogb
// TESTING: ldexp
#if __clang_major__ == 3 && __clang_minor__ < 4
typedef const char* string; /* for backward compatibility */
#else
typedef constant char* string;
#endif
#define IMPLEMENT_BODY_V(NAME, BODY, SIZE, \
VTYPE, STYPE, ITYPE, SITYPE, JTYPE, SJTYPE) \
void NAME##_##VTYPE() \
{ \
typedef VTYPE vtype; \
typedef STYPE stype; \
typedef ITYPE itype; \
typedef SITYPE sitype; \
typedef JTYPE jtype; \
typedef SJTYPE sjtype; \
string const typename = #VTYPE; \
const int vecsize = SIZE; \
BODY; \
}
#define DEFINE_BODY_V(NAME, EXPR) \
IMPLEMENT_BODY_V(NAME, EXPR, 1, float , float , int , int, int , int ) \
IMPLEMENT_BODY_V(NAME, EXPR, 2, float2 , float , int2 , int, int2 , int ) \
IMPLEMENT_BODY_V(NAME, EXPR, 3, float3 , float , int3 , int, int3 , int ) \
IMPLEMENT_BODY_V(NAME, EXPR, 4, float4 , float , int4 , int, int4 , int ) \
IMPLEMENT_BODY_V(NAME, EXPR, 8, float8 , float , int8 , int, int8 , int ) \
IMPLEMENT_BODY_V(NAME, EXPR, 16, float16 , float , int16, int, int16 , int ) \
__IF_FP64( \
IMPLEMENT_BODY_V(NAME, EXPR, 1, double , double, int , int, long , long) \
IMPLEMENT_BODY_V(NAME, EXPR, 2, double2 , double, int2 , int, long2 , long) \
IMPLEMENT_BODY_V(NAME, EXPR, 3, double3 , double, int3 , int, long3 , long) \
IMPLEMENT_BODY_V(NAME, EXPR, 4, double4 , double, int4 , int, long4 , long) \
IMPLEMENT_BODY_V(NAME, EXPR, 8, double8 , double, int8 , int, long8 , long) \
IMPLEMENT_BODY_V(NAME, EXPR, 16, double16, double, int16, int, long16, long))
#define CALL_FUNC_V(NAME) \
NAME##_float (); \
NAME##_float2 (); \
NAME##_float3 (); \
NAME##_float4 (); \
NAME##_float8 (); \
NAME##_float16 (); \
__IF_FP64( \
NAME##_double (); \
NAME##_double2 (); \
NAME##_double3 (); \
NAME##_double4 (); \
NAME##_double8 (); \
NAME##_double16();)
#if __has_extension(c_generic_selections)
#ifdef cl_khr_fp64
# define is_floating(T) _Generic((T)0, float: 1, double: 1, default: 0)
#else
# define is_floating(T) _Generic((T)0, float: 1, default: 0)
#endif
#else
# define is_floating(T) ((T)0.1f > (T)0.0f)
#endif
#define is_signed(T) ((T)-1 < (T)+1)
#define count_bits(T) (CHAR_BIT * sizeof(T))
#define ISNAN(x) (isnan(x) || as_int((float)(x)) == as_int((float)NAN))
#define ISEQ(x, y) (ISNAN(x) == ISNAN(y) && (ISNAN(x) || (x)==(y)))
DEFINE_BODY_V
(test_fabs,
({
_CL_STATIC_ASSERT(stype, is_floating(stype));
float const values[] = {
0.0f,
0.1f,
0.9f,
1.0f,
1.1f,
10.0f,
1000000.0f,
1000000000000.0f,
MAXFLOAT,
HUGE_VALF,
INFINITY,
NAN,
FLT_MAX,
FLT_MIN,
FLT_EPSILON,
};
int const nvalues = sizeof(values) / sizeof(*values);
int ninputs = 1;
#ifdef cl_khr_fp64
double const dvalues[] = {
0.0,
0.1,
0.9,
1.0,
1.1,
10.0,
1000000.0,
1000000000000.0,
1000000000000000000000000.0,
HUGE_VAL,
INFINITY,
NAN,
DBL_MAX,
DBL_MIN,
DBL_EPSILON,
};
int const ndvalues = sizeof(dvalues) / sizeof(*dvalues);
++ninputs;
#endif
for (int input=0; input<ninputs; ++input) {
for (int iter=0; iter<nvalues; ++iter) {
for (int sign=-1; sign<=+1; sign+=2) {
typedef union {
vtype v;
stype s[16];
} Tvec;
Tvec val, good, val2;
for (int n=0; n<vecsize; ++n) {
if (input==0) {
val.s[n] = sign * values[(iter+n) % nvalues];
good.s[n] = values[(iter+n) % nvalues];
val2.s[n] = values[(iter+n+1) % nvalues];
} else {
#ifdef cl_khr_fp64
val.s[n] = sign * dvalues[(iter+n) % ndvalues];
good.s[n] = dvalues[(iter+n) % ndvalues];
val2.s[n] = dvalues[(iter+n+1) % ndvalues];
#endif
}
}
Tvec res;
bool equal;
typedef union {
stype s;
sjtype sj;
} S;
typedef union {
itype v;
sitype s[16];
} Ivec;
typedef union {
jtype v;
sjtype s[16];
} Jvec;
/* fabs */
res.v = fabs(val.v);
equal = true;
for (int n=0; n<vecsize; ++n) {
S r, g;
r.s = res.s[n];
g.s = good.s[n];
equal = equal && (ISNAN(val.s[n]) || r.sj == g.sj);
}
if (!equal) {
for (int n=0; n<vecsize; ++n) {
printf("FAIL: fabs type=%s val=%.17g res=%.17g good=%.17g\n",
typename, val.s[n], res.s[n], good.s[n]);
}
return;
}
/* signbit */
Jvec jres;
jres.v = signbit(val.v);
equal = true;
for (int n=0; n<vecsize; ++n) {
equal = equal &&
(ISNAN(val.s[n]) ||
jres.s[n] == (sign>0 ? 0 : vecsize==1 ? +1 : -1));
}
if (!equal) {
for (int n=0; n<vecsize; ++n) {
printf("FAIL: signbit type=%s val=%.17g res=%d good=%d\n",
typename, val.s[n], (int)jres.s[n],
(sign>0 ? 0 : vecsize==1 ? +1 : -1));
}
return;
}
/* isfinite */
jres.v = isfinite(val.v);
equal = true;
for (int n=0; n<vecsize; ++n) {
equal = equal &&
jres.s[n] == (isfinite(val.s[n]) ? (vecsize==1 ? +1 : -1) : 0);
}
if (!equal) {
for (int n=0; n<vecsize; ++n) {
printf("FAIL: isfinite type=%s val=%.17g res=%d good=%d\n",
typename, val.s[n], (int)jres.s[n],
(isfinite(val.s[n]) ? (vecsize==1 ? +1 : -1) : 0));
}
return;
}
/* isinf */
jres.v = isinf(val.v);
equal = true;
for (int n=0; n<vecsize; ++n) {
equal = equal &&
jres.s[n] == (isinf(val.s[n]) ? (vecsize==1 ? +1 : -1) : 0);
}
if (!equal) {
for (int n=0; n<vecsize; ++n) {
printf("FAIL: isinf type=%s val=%.17g res=%d good=%d\n",
typename, val.s[n], (int)jres.s[n],
(isinf(val.s[n]) ? (vecsize==1 ? +1 : -1) : 0));
}
return;
}
/* isnan */
jres.v = isnan(val.v);
equal = true;
for (int n=0; n<vecsize; ++n) {
equal = equal &&
jres.s[n] == (isnan(val.s[n]) ? (vecsize==1 ? +1 : -1) : 0);
}
if (!equal) {
for (int n=0; n<vecsize; ++n) {
printf("FAIL: isnan type=%s val=%.17g res=%d good=%d\n",
typename, val.s[n], (int)jres.s[n],
(isnan(val.s[n]) ? (vecsize==1 ? +1 : -1) : 0));
}
return;
}
/* isnormal */
jres.v = isnormal(val.v);
equal = true;
for (int n=0; n<vecsize; ++n) {
equal = equal &&
jres.s[n] == (isnormal(val.s[n]) ? (vecsize==1 ? +1 : -1) : 0);
}
if (!equal) {
for (int n=0; n<vecsize; ++n) {
printf("FAIL: isnormal type=%s val=%.17g res=%d good=%d\n",
typename, val.s[n], (int)jres.s[n],
(isnormal(val.s[n]) ? (vecsize==1 ? +1 : -1) : 0));
}
return;
}
/* copysign */
for (int sign2=-1; sign2<=+1; sign2+=2) {
res.v = copysign(val.v, (stype)sign2*val2.v);
equal = true;
for (int n=0; n<vecsize; ++n) {
S r, g;
r.s = res.s[n];
g.s = sign2*good.s[n];
equal = equal &&
(ISNAN(val.s[n]) || ISNAN(val2.s[n]) || r.sj == g.sj);
}
if (!equal) {
for (int n=0; n<vecsize; ++n) {
printf("FAIL: copysign type=%s val=%.17g sign=%.17g res=%.17g good=%.17g\n",
typename, val.s[n], sign2*val2.s[n], res.s[n], good.s[n]);
}
return;
}
}
/* ilogb */
Ivec ires;
ires.v = ilogb(val.v);
Ivec igoodres;
equal = true;
for (int n=0; n<vecsize; ++n) {
if (ISNAN(val.s[n])) {
igoodres.s[n] = FP_ILOGBNAN;
} else if (val.s[n] == (stype)0) {
igoodres.s[n] = FP_ILOGB0;
} else if (isinf(val.s[n])) {
igoodres.s[n] = INT_MAX;
} else {
// We round down to "correct" for inaccuracies in log2
// We divide by 2 since log2 is wrong for large inputs
igoodres.s[n] = 1+rint(floor(0.999999f*log2(0.5*fabs(val.s[n]))));
}
equal = equal && ires.s[n] == igoodres.s[n];
}
if (!equal) {
for (int n=0; n<vecsize; ++n) {
printf("FAIL: ilogb type=%s val=%.17g res=%d good=%d\n",
typename, val.s[n], (int)ires.s[n], (int)igoodres.s[n]);
}
return;
}
/* ldexp */
Ivec ival2;
ival2.v = (itype)4;
res.v = ldexp(val.v, ival2.v);
Tvec goodres;
equal = true;
for (int n=0; n<vecsize; ++n) {
if (ISNAN(val.s[n])) {
goodres.s[n] = NAN;
} else if (val.s[n] == (stype)0) {
goodres.s[n] = val.s[n];
} else if (isinf(val.s[n])) {
goodres.s[n] = val.s[n];
} else {
goodres.s[n] = val.s[n] * pow(2.0, ival2.s[n]);
}
equal = equal && ISEQ(res.s[n], goodres.s[n]);
}
if (!equal) {
for (int n=0; n<vecsize; ++n) {
printf("FAIL: ldexp type=%s val=%.17g val2=%d res=%.17g good=%.17g\n",
typename, val.s[n], (int)ival2.s[n], res.s[n], goodres.s[n]);
}
return;
}
}
}
}
})
)
kernel void test_fabs()
{
CALL_FUNC_V(test_fabs)
}
|
