93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
// RUN: %clang_builtins %s %librt -o %t && %run %t
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// REQUIRES: librt_has_addtf3
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#include <fenv.h>
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#include <stdio.h>
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// The testcase currently assumes IEEE TF format, once that has been
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// fixed the defined(CRT_HAS_IEEE_TF) guard can be removed to enable it for
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// IBM 128 floats as well.
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#if defined(CRT_HAS_IEEE_TF)
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# include "fp_test.h"
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# include "int_lib.h"
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// Returns: a + b
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COMPILER_RT_ABI tf_float __addtf3(tf_float a, tf_float b);
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int test__addtf3(tf_float a, tf_float b, uint64_t expectedHi,
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uint64_t expectedLo) {
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tf_float x = __addtf3(a, b);
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int ret = compareResultF128(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",
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a, b, x, 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(tf_float) * CHAR_BIT == 128] = {0};
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#endif
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int main() {
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#if defined(CRT_HAS_IEEE_TF)
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// qNaN + any = qNaN
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if (test__addtf3(makeQNaN128(), 0x1.23456789abcdefp+5L,
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UINT64_C(0x7fff800000000000), 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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TF_C(0x1.23456789abcdefp+5), 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(), makeInf128(), 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(), TF_C(0x1.2335653452436234723489432abcdefp+5),
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UINT64_C(0x7fff000000000000), UINT64_C(0x0)))
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return 1;
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// any + any
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if (test__addtf3(TF_C(0x1.23456734245345543849abcdefp+5),
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TF_C(0x1.edcba52449872455634654321fp-1),
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UINT64_C(0x40042afc95c8b579), 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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(defined(__loongarch__) && __loongarch_frlen != 0)
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// Rounding mode tests on supported architectures
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const tf_float m = 1234.0L, n = 0.01L;
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fesetround(FE_UPWARD);
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if (test__addtf3(m, n, 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, 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, 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, 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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