forked from OSchip/llvm-project
116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
// RUN: %clang_builtins %s %librt -o %t && %run %t
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// REQUIRES: librt_has_addtf3
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//===--------------- addtf3_test.c - Test __addtf3 ------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file tests __addtf3 for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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#include <fenv.h>
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#include <stdio.h>
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#if __LDBL_MANT_DIG__ == 113
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#include "int_lib.h"
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#include "fp_test.h"
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// Returns: a + b
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COMPILER_RT_ABI long double __addtf3(long double a, long double b);
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int test__addtf3(long double a, long double b,
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uint64_t expectedHi, uint64_t expectedLo)
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{
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long double x = __addtf3(a, b);
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int ret = compareResultLD(x, expectedHi, expectedLo);
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if (ret){
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printf("error in test__addtf3(%.20Lf, %.20Lf) = %.20Lf, "
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"expected %.20Lf\n", a, b, x,
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fromRep128(expectedHi, expectedLo));
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}
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return ret;
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}
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char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};
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#endif
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int main()
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{
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#if __LDBL_MANT_DIG__ == 113
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// qNaN + any = qNaN
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if (test__addtf3(makeQNaN128(),
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0x1.23456789abcdefp+5L,
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UINT64_C(0x7fff800000000000),
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UINT64_C(0x0)))
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return 1;
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// NaN + any = NaN
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if (test__addtf3(makeNaN128(UINT64_C(0x800030000000)),
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0x1.23456789abcdefp+5L,
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UINT64_C(0x7fff800000000000),
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UINT64_C(0x0)))
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return 1;
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// inf + inf = inf
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if (test__addtf3(makeInf128(),
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makeInf128(),
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UINT64_C(0x7fff000000000000),
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UINT64_C(0x0)))
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return 1;
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// inf + any = inf
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if (test__addtf3(makeInf128(),
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0x1.2335653452436234723489432abcdefp+5L,
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UINT64_C(0x7fff000000000000),
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UINT64_C(0x0)))
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return 1;
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// any + any
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if (test__addtf3(0x1.23456734245345543849abcdefp+5L,
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0x1.edcba52449872455634654321fp-1L,
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UINT64_C(0x40042afc95c8b579),
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UINT64_C(0x61e58dd6c51eb77c)))
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return 1;
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#if (defined(__arm__) || defined(__aarch64__)) && defined(__ARM_FP) || \
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defined(i386) || defined(__x86_64__)
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// Rounding mode tests on supported architectures
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const long double m = 1234.0L, n = 0.01L;
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fesetround(FE_UPWARD);
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if (test__addtf3(m, n,
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UINT64_C(0x40093480a3d70a3d),
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UINT64_C(0x70a3d70a3d70a3d8)))
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return 1;
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fesetround(FE_DOWNWARD);
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if (test__addtf3(m, n,
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UINT64_C(0x40093480a3d70a3d),
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UINT64_C(0x70a3d70a3d70a3d7)))
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return 1;
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fesetround(FE_TOWARDZERO);
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if (test__addtf3(m, n,
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UINT64_C(0x40093480a3d70a3d),
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UINT64_C(0x70a3d70a3d70a3d7)))
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return 1;
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fesetround(FE_TONEAREST);
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if (test__addtf3(m, n,
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UINT64_C(0x40093480a3d70a3d),
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UINT64_C(0x70a3d70a3d70a3d7)))
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return 1;
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#endif
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#else
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printf("skipped\n");
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#endif
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return 0;
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}
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