forked from OSchip/llvm-project
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
//===--------------- subtf3_test.c - Test __subtf3 ------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file tests __subtf3 for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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#include <stdio.h>
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#if __LDBL_MANT_DIG__ == 113
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#include "fp_test.h"
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// Returns: a - b
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COMPILER_RT_ABI long double __subtf3(long double a, long double b);
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int test__subtf3(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 = __subtf3(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__subtf3(%.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__subtf3(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__subtf3(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 - any = inf
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if (test__subtf3(makeInf128(),
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0x1.23456789abcdefp+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__subtf3(0x1.234567829a3bcdef5678ade36734p+5L,
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0x1.ee9d7c52354a6936ab8d7654321fp-1L,
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UINT64_C(0x40041b8af1915166),
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UINT64_C(0xa44a7bca780a166c)))
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return 1;
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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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