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Diffstat (limited to 'test/builtins/Unit/divdf3_test.c')
-rw-r--r-- | test/builtins/Unit/divdf3_test.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/test/builtins/Unit/divdf3_test.c b/test/builtins/Unit/divdf3_test.c new file mode 100644 index 000000000..00b021f4e --- /dev/null +++ b/test/builtins/Unit/divdf3_test.c @@ -0,0 +1,45 @@ +// RUN: %clang_builtins %s %librt -o %t && %run %t +//===--------------- divdf3_test.c - Test __divdf3 ------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file tests __divdf3 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "int_lib.h" +#include <stdio.h> + +#include "fp_test.h" + +// Returns: a / b +COMPILER_RT_ABI double __divdf3(double a, double b); + +int test__divdf3(double a, double b, uint64_t expected) +{ + double x = __divdf3(a, b); + int ret = compareResultD(x, expected); + + if (ret){ + printf("error in test__divdf3(%.20e, %.20e) = %.20e, " + "expected %.20e\n", a, b, x, + fromRep64(expected)); + } + return ret; +} + +int main() +{ + // 1/3 + if (test__divdf3(1., 3., 0x3fd5555555555555ULL)) + return 1; + // smallest normal result + if (test__divdf3(4.450147717014403e-308, 2., 0x10000000000000ULL)) + return 1; + + return 0; +} |