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// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_addtf3
#include <fenv.h>
#include <stdio.h>
// The testcase currently assumes IEEE TF format, once that has been
// fixed the defined(CRT_HAS_IEEE_TF) guard can be removed to enable it for
// IBM 128 floats as well.
#if defined(CRT_HAS_IEEE_TF)
# include "fp_test.h"
# include "int_lib.h"
// Returns: a + b
COMPILER_RT_ABI tf_float __addtf3(tf_float a, tf_float b);
int test__addtf3(tf_float a, tf_float b, uint64_t expectedHi,
uint64_t expectedLo) {
tf_float x = __addtf3(a, b);
int ret = compareResultF128(x, expectedHi, expectedLo);
if (ret) {
printf("error in test__addtf3(%.20Lf, %.20Lf) = %.20Lf, "
"expected %.20Lf\n",
a, b, x, fromRep128(expectedHi, expectedLo));
}
return ret;
}
char assumption_1[sizeof(tf_float) * CHAR_BIT == 128] = {0};
#endif
int main() {
#if defined(CRT_HAS_IEEE_TF)
// qNaN + any = qNaN
if (test__addtf3(makeQNaN128(), 0x1.23456789abcdefp+5L,
UINT64_C(0x7fff800000000000), UINT64_C(0x0)))
return 1;
// NaN + any = NaN
if (test__addtf3(makeNaN128(UINT64_C(0x800030000000)),
TF_C(0x1.23456789abcdefp+5), UINT64_C(0x7fff800000000000),
UINT64_C(0x0)))
return 1;
// inf + inf = inf
if (test__addtf3(makeInf128(), makeInf128(), UINT64_C(0x7fff000000000000),
UINT64_C(0x0)))
return 1;
// inf + any = inf
if (test__addtf3(makeInf128(), TF_C(0x1.2335653452436234723489432abcdefp+5),
UINT64_C(0x7fff000000000000), UINT64_C(0x0)))
return 1;
// any + any
if (test__addtf3(TF_C(0x1.23456734245345543849abcdefp+5),
TF_C(0x1.edcba52449872455634654321fp-1),
UINT64_C(0x40042afc95c8b579), UINT64_C(0x61e58dd6c51eb77c)))
return 1;
# if (defined(__arm__) || defined(__aarch64__)) && defined(__ARM_FP) || \
defined(i386) || defined(__x86_64__) || \
(defined(__loongarch__) && __loongarch_frlen != 0)
// Rounding mode tests on supported architectures
const tf_float m = 1234.0L, n = 0.01L;
fesetround(FE_UPWARD);
if (test__addtf3(m, n, UINT64_C(0x40093480a3d70a3d),
UINT64_C(0x70a3d70a3d70a3d8)))
return 1;
fesetround(FE_DOWNWARD);
if (test__addtf3(m, n, UINT64_C(0x40093480a3d70a3d),
UINT64_C(0x70a3d70a3d70a3d7)))
return 1;
fesetround(FE_TOWARDZERO);
if (test__addtf3(m, n, UINT64_C(0x40093480a3d70a3d),
UINT64_C(0x70a3d70a3d70a3d7)))
return 1;
fesetround(FE_TONEAREST);
if (test__addtf3(m, n, UINT64_C(0x40093480a3d70a3d),
UINT64_C(0x70a3d70a3d70a3d7)))
return 1;
# endif
#else
printf("skipped\n");
#endif
return 0;
}
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