115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
// RUN: %clang_builtins %s %librt -o %t && %run %t
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// REQUIRES: librt_has_fixunstfdi
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#include <stdio.h>
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#if _ARCH_PPC || __aarch64__
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#include "int_lib.h"
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// Returns: convert a to a unsigned long long, rounding toward zero.
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// Negative values all become zero.
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// Assumption: long double is a 128 bit floating point type
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// du_int is a 64 bit integral type
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// value in long double is representable in du_int or is negative
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// (no range checking performed)
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COMPILER_RT_ABI du_int __fixunstfdi(long double a);
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int test__fixunstfdi(long double a, du_int expected)
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{
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du_int x = __fixunstfdi(a);
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if (x != expected)
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printf("error in __fixunstfdi(%LA) = %llX, expected %llX\n",
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a, x, expected);
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return x != expected;
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}
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char assumption_1[sizeof(du_int) == 2*sizeof(su_int)] = {0};
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char assumption_2[sizeof(du_int)*CHAR_BIT == 64] = {0};
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char assumption_3[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 _ARCH_PPC || __aarch64__
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if (test__fixunstfdi(0.0, 0))
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return 1;
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if (test__fixunstfdi(0.5, 0))
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return 1;
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if (test__fixunstfdi(0.99, 0))
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return 1;
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if (test__fixunstfdi(1.0, 1))
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return 1;
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if (test__fixunstfdi(1.5, 1))
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return 1;
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if (test__fixunstfdi(1.99, 1))
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return 1;
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if (test__fixunstfdi(2.0, 2))
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return 1;
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if (test__fixunstfdi(2.01, 2))
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return 1;
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if (test__fixunstfdi(-0.5, 0))
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return 1;
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if (test__fixunstfdi(-0.99, 0))
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return 1;
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if (test__fixunstfdi(-1.0, 0))
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return 1;
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if (test__fixunstfdi(-1.5, 0))
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return 1;
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if (test__fixunstfdi(-1.99, 0))
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return 1;
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if (test__fixunstfdi(-2.0, 0))
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return 1;
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if (test__fixunstfdi(-2.01, 0))
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return 1;
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if (test__fixunstfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))
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return 1;
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if (test__fixunstfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))
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return 1;
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if (test__fixunstfdi(-0x1.FFFFFEp+62, 0))
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return 1;
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if (test__fixunstfdi(-0x1.FFFFFCp+62, 0))
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return 1;
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if (test__fixunstfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))
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return 1;
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if (test__fixunstfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))
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return 1;
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if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFp+62, 0))
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return 1;
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if (test__fixunstfdi(-0x1.FFFFFFFFFFFFEp+62, 0))
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return 1;
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if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))
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return 1;
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if (test__fixunstfdi(0x1.0000000000000002p+63L, 0x8000000000000001LL))
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return 1;
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if (test__fixunstfdi(0x1.0000000000000000p+63L, 0x8000000000000000LL))
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return 1;
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if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))
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return 1;
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if (test__fixunstfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))
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return 1;
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if (test__fixunstfdi(0x1.p+64L, 0xFFFFFFFFFFFFFFFFLL))
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return 1;
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if (test__fixunstfdi(-0x1.0000000000000000p+63L, 0))
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return 1;
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if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))
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return 1;
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if (test__fixunstfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))
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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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