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// RUN: %clang_builtins %s %librt -o %t && %run %t
#define QUAD_PRECISION
#include <fenv.h>
#include <float.h>
#include <limits.h>
#include <math.h>
#include <stdio.h>
#include "fp_lib.h"
#if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT)
int test__compiler_rt_scalbnl(const char *mode, fp_t x, int y) {
#if defined(__ve__)
if (fpclassify(x) == FP_SUBNORMAL)
return 0;
#endif
fp_t crt_value = __compiler_rt_scalbnl(x, y);
fp_t libm_value = scalbnl(x, y);
// Consider +/-0 unequal, but disregard the sign/payload of NaN.
if (toRep(crt_value) != toRep(libm_value) &&
!(crt_isnan(crt_value) && crt_isnan(libm_value))) {
// Split expected values into two for printf
twords x_t, crt_value_t, libm_value_t;
x_t.all = toRep(x);
crt_value_t.all = toRep(crt_value);
libm_value_t.all = toRep(libm_value);
printf(
"error: [%s] in __compiler_rt_scalbnl([%llX %llX], %d) = "
"[%llX %llX] != [%llX %llX]\n",
mode, (unsigned long long)x_t.s.high, (unsigned long long)x_t.s.low, y,
(unsigned long long)crt_value_t.s.high,
(unsigned long long)crt_value_t.s.low,
(unsigned long long)libm_value_t.s.high,
(unsigned long long)libm_value_t.s.low);
return 1;
}
return 0;
}
fp_t cases[] = {
-NAN, NAN, -INFINITY, INFINITY, -0.0, 0.0, -1, 1, -2, 2,
LDBL_TRUE_MIN, LDBL_MIN, LDBL_MAX,
-1.001, 1.001, -1.002, 1.002, 1.e-6, -1.e-6,
0x1.0p-16381L,
0x1.0p-16382L,
0x1.0p-16383L, // subnormal
0x1.0p-16384L, // subnormal
};
int iterate_cases(const char *mode) {
const unsigned N = sizeof(cases) / sizeof(cases[0]);
unsigned i;
for (i = 0; i < N; ++i) {
int j;
for (j = -5; j <= 5; ++j) {
if (test__compiler_rt_scalbnl(mode, cases[i], j)) return 1;
}
if (test__compiler_rt_scalbnl(mode, cases[i], -100000)) return 1;
if (test__compiler_rt_scalbnl(mode, cases[i], 100000)) return 1;
if (test__compiler_rt_scalbnl(mode, cases[i], INT_MIN)) return 1;
if (test__compiler_rt_scalbnl(mode, cases[i], INT_MAX)) return 1;
}
return 0;
}
#endif
int main() {
#if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT)
if (iterate_cases("default")) return 1;
// Skip rounding mode tests (fesetround) because compiler-rt's quad-precision
// multiply also ignores the current rounding mode.
#else
printf("skipped\n");
#endif
return 0;
}
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