145 lines
4.9 KiB
C
145 lines
4.9 KiB
C
//===-- floatdixf_test.c - Test __floatdixf -------------------------------===//
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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 __floatdixf for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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#include "int_lib.h"
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#include <stdio.h>
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#if HAS_80_BIT_LONG_DOUBLE
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// Returns: convert a to a long double, rounding toward even.
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// Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits
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// di_int is a 64 bit integral type
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// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
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// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
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long double __floatdixf(di_int a);
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int test__floatdixf(di_int a, long double expected)
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{
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long double x = __floatdixf(a);
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if (x != expected)
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printf("error in __floatdixf(%llX) = %LA, expected %LA\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(di_int) == 2*sizeof(si_int)] = {0};
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char assumption_2[sizeof(di_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 HAS_80_BIT_LONG_DOUBLE
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if (test__floatdixf(0, 0.0))
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return 1;
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if (test__floatdixf(1, 1.0))
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return 1;
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if (test__floatdixf(2, 2.0))
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return 1;
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if (test__floatdixf(20, 20.0))
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return 1;
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if (test__floatdixf(-1, -1.0))
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return 1;
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if (test__floatdixf(-2, -2.0))
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return 1;
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if (test__floatdixf(-20, -20.0))
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return 1;
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if (test__floatdixf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62))
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return 1;
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if (test__floatdixf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62))
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return 1;
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if (test__floatdixf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62))
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return 1;
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if (test__floatdixf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62))
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return 1;
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if (test__floatdixf(0x8000008000000000LL, -0x1.FFFFFEp+62))
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return 1;
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if (test__floatdixf(0x8000000000000800LL, -0x1.FFFFFFFFFFFFEp+62))
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return 1;
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if (test__floatdixf(0x8000010000000000LL, -0x1.FFFFFCp+62))
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return 1;
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if (test__floatdixf(0x8000000000001000LL, -0x1.FFFFFFFFFFFFCp+62))
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return 1;
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if (test__floatdixf(0x8000000000000000LL, -0x1.000000p+63))
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return 1;
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if (test__floatdixf(0x8000000000000001LL, -0x1.FFFFFFFFFFFFFFFCp+62L))
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return 1;
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if (test__floatdixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
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return 1;
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if (test__floatdixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
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return 1;
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if (test__floatdixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
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return 1;
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if (test__floatdixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
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return 1;
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if (test__floatdixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
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return 1;
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if (test__floatdixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
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return 1;
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if (test__floatdixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
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return 1;
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if (test__floatdixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
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return 1;
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if (test__floatdixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
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return 1;
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if (test__floatdixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
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return 1;
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if (test__floatdixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
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return 1;
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if (test__floatdixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
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return 1;
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if (test__floatdixf(0x023479FD0E092DA1LL, 0x8.D1E7F43824B684p+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DB0LL, 0x8.D1E7f43824B6Cp+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DB8LL, 0x8.D1E7F43824B6Ep+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DB6LL, 0x8.D1E7F43824B6D8p+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DBFLL, 0x8.D1E7F43824B6FCp+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DC1LL, 0x8.D1E7F43824B704p+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DC7LL, 0x8.D1E7F43824B71Cp+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DC8LL, 0x8.D1E7F43824B72p+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DCFLL, 0x8.D1E7F43824B73Cp+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DD0LL, 0x8.D1E7F43824B74p+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DD1LL, 0x8.D1E7F43824B744p+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DD8LL, 0x8.D1E7F43824B76p+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DDFLL, 0x8.D1E7F43824B77Cp+54L))
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return 1;
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if (test__floatdixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
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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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