// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_divtf3
#include "int_lib.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"
// Returns: a / b
COMPILER_RT_ABI tf_float __divtf3(tf_float a, tf_float b);
int test__divtf3(tf_float a, tf_float b, uint64_t expectedHi,
uint64_t expectedLo) {
tf_float x = __divtf3(a, b);
int ret = compareResultF128(x, expectedHi, expectedLo);
if (ret) {
printf("error in test__divtf3(%.20Le, %.20Le) = %.20Le, "
"expected %.20Le\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)
// Returned NaNs are assumed to be qNaN by default
// qNaN / any = qNaN
if (test__divtf3(makeQNaN128(), TF_C(0x1.23456789abcdefp+5),
UINT64_C(0x7fff800000000000), UINT64_C(0x0)))
return 1;
// NaN / any = NaN
if (test__divtf3(makeNaN128(UINT64_C(0x30000000)),
TF_C(0x1.23456789abcdefp+5), UINT64_C(0x7fff800000000000),
UINT64_C(0x0)))
return 1;
// any / qNaN = qNaN
if (test__divtf3(TF_C(0x1.23456789abcdefp+5), makeQNaN128(),
UINT64_C(0x7fff800000000000), UINT64_C(0x0)))
return 1;
// any / NaN = NaN
if (test__divtf3(TF_C(0x1.23456789abcdefp+5),
makeNaN128(UINT64_C(0x30000000)),
UINT64_C(0x7fff800000000000), UINT64_C(0x0)))
return 1;
// +Inf / positive = +Inf
if (test__divtf3(makeInf128(), TF_C(3.), UINT64_C(0x7fff000000000000),
UINT64_C(0x0)))
return 1;
// +Inf / negative = -Inf
if (test__divtf3(makeInf128(), -TF_C(3.), UINT64_C(0xffff000000000000),
UINT64_C(0x0)))
return 1;
// -Inf / positive = -Inf
if (test__divtf3(makeNegativeInf128(), TF_C(3.), UINT64_C(0xffff000000000000),
UINT64_C(0x0)))
return 1;
// -Inf / negative = +Inf
if (test__divtf3(makeNegativeInf128(), -TF_C(3.),
UINT64_C(0x7fff000000000000), UINT64_C(0x0)))
return 1;
// Inf / Inf = NaN
if (test__divtf3(makeInf128(), makeInf128(), UINT64_C(0x7fff800000000000),
UINT64_C(0x0)))
return 1;
// 0.0 / 0.0 = NaN
if (test__divtf3(+TF_C(0x0.0p+0), +TF_C(0x0.0p+0),
UINT64_C(0x7fff800000000000), UINT64_C(0x0)))
return 1;
// +0.0 / +Inf = +0.0
if (test__divtf3(+TF_C(0x0.0p+0), makeInf128(), UINT64_C(0x0), UINT64_C(0x0)))
return 1;
// +Inf / +0.0 = +Inf
if (test__divtf3(makeInf128(), +TF_C(0x0.0p+0), UINT64_C(0x7fff000000000000),
UINT64_C(0x0)))
return 1;
// positive / +0.0 = +Inf
if (test__divtf3(+TF_C(1.0), +TF_C(0x0.0p+0), UINT64_C(0x7fff000000000000),
UINT64_C(0x0)))
return 1;
// positive / -0.0 = -Inf
if (test__divtf3(+1.0L, -TF_C(0x0.0p+0), UINT64_C(0xffff000000000000),
UINT64_C(0x0)))
return 1;
// negative / +0.0 = -Inf
if (test__divtf3(-1.0L, +TF_C(0x0.0p+0), UINT64_C(0xffff000000000000),
UINT64_C(0x0)))
return 1;
// negative / -0.0 = +Inf
if (test__divtf3(TF_C(-1.0), -TF_C(0x0.0p+0), UINT64_C(0x7fff000000000000),
UINT64_C(0x0)))
return 1;
// 1/3
if (test__divtf3(TF_C(1.), TF_C(3.), UINT64_C(0x3ffd555555555555),
UINT64_C(0x5555555555555555)))
return 1;
// smallest normal result
if (test__divtf3(TF_C(0x1.0p-16381), TF_C(2.), UINT64_C(0x0001000000000000),
UINT64_C(0x0)))
return 1;
// divisor is exactly 1.0
if (test__divtf3(TF_C(0x1.0p+0), TF_C(0x1.0p+0), UINT64_C(0x3fff000000000000),
UINT64_C(0x0)))
return 1;
// divisor is truncated to exactly 1.0 in UQ1.63
if (test__divtf3(TF_C(0x1.0p+0), TF_C(0x1.0000000000000001p+0),
UINT64_C(0x3ffeffffffffffff), UINT64_C(0xfffe000000000000)))
return 1;
// smallest normal value divided by 2.0
if (test__divtf3(TF_C(0x1.0p-16382), 2.L, UINT64_C(0x0000800000000000),
UINT64_C(0x0)))
return 1;
// smallest subnormal result
if (test__divtf3(TF_C(0x1.0p-16382), TF_C(0x1p+112), UINT64_C(0x0),
UINT64_C(0x1)))
return 1;
// any / any
if (test__divtf3(TF_C(0x1.a23b45362464523375893ab4cdefp+5),
TF_C(0x1.eedcbaba3a94546558237654321fp-1),
UINT64_C(0x4004b0b72924d407), UINT64_C(0x0717e84356c6eba2)))
return 1;
if (test__divtf3(TF_C(0x1.a2b34c56d745382f9abf2c3dfeffp-50),
TF_C(0x1.ed2c3ba15935332532287654321fp-9),
UINT64_C(0x3fd5b2af3f828c9b), UINT64_C(0x40e51f64cde8b1f2)))
return 15;
if (test__divtf3(TF_C(0x1.2345f6aaaa786555f42432abcdefp+456),
TF_C(0x1.edacbba9874f765463544dd3621fp+6400),
UINT64_C(0x28c62e15dc464466), UINT64_C(0xb5a07586348557ac)))
return 1;
if (test__divtf3(TF_C(0x1.2d3456f789ba6322bc665544edefp-234),
TF_C(0x1.eddcdba39f3c8b7a36564354321fp-4455),
UINT64_C(0x507b38442b539266), UINT64_C(0x22ce0f1d024e1252)))
return 1;
if (test__divtf3(TF_C(0x1.2345f6b77b7a8953365433abcdefp+234),
TF_C(0x1.edcba987d6bb3aa467754354321fp-4055),
UINT64_C(0x50bf2e02f0798d36), UINT64_C(0x5e6fcb6b60044078)))
return 1;
if (test__divtf3(TF_C(6.72420628622418701252535563464350521E-4932), TF_C(2.),
UINT64_C(0x0001000000000000), UINT64_C(0)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
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