forked from OSchip/llvm-project
104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
//===-- fixunstfti_test.c - Test __fixunstfti -----------------------------===//
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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 __fixunstfti 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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#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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// tu_int is a 128 bit integral type
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// value in long double is representable in tu_int or is negative
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// (no range checking performed)
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COMPILER_RT_ABI tu_int __fixunstfti(long double a);
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int test__fixunstfti(long double a, tu_int expected)
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{
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tu_int x = __fixunstfti(a);
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if (x != expected)
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{
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twords xt;
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xt.all = x;
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twords expectedt;
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expectedt.all = expected;
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printf("error in __fixunstfti(%.20Lf) = 0x%.16llX%.16llX, "
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"expected 0x%.16llX%.16llX\n",
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a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low);
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}
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return x != expected;
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}
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char assumption_1[sizeof(tu_int) == 4*sizeof(su_int)] = {0};
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char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {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 __LDBL_MANT_DIG__ == 113
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if (test__fixunstfti(makeInf128(), make_ti(0xffffffffffffffffLL,
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0xffffffffffffffffLL)))
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return 1;
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if (test__fixunstfti(0.0, 0))
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return 1;
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if (test__fixunstfti(0.5, 0))
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return 1;
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if (test__fixunstfti(0.99, 0))
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return 1;
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if (test__fixunstfti(1.0, 1))
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return 1;
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if (test__fixunstfti(1.5, 1))
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return 1;
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if (test__fixunstfti(1.99, 1))
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return 1;
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if (test__fixunstfti(2.0, 2))
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return 1;
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if (test__fixunstfti(2.01, 2))
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return 1;
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if (test__fixunstfti(-0.01, 0))
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return 1;
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if (test__fixunstfti(-0.99, 0))
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return 1;
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if (test__fixunstfti(0x1.p+128, make_ti(0xffffffffffffffffLL,
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0xffffffffffffffffLL)))
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return 1;
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if (test__fixunstfti(0x1.FFFFFEp+126, make_ti(0x7fffff8000000000LL, 0x0)))
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return 1;
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if (test__fixunstfti(0x1.FFFFFEp+127, make_ti(0xffffff0000000000LL, 0x0)))
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return 1;
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if (test__fixunstfti(0x1.FFFFFEp+128, make_ti(0xffffffffffffffffLL,
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0xffffffffffffffffLL)))
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return 1;
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if (test__fixunstfti(0x1.FFFFFEp+129, make_ti(0xffffffffffffffffLL,
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0xffffffffffffffffLL)))
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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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