| //===-- fixxfdi_test.c - Test __fixxfdi -----------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file tests __fixxfdi for the compiler_rt library. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "int_lib.h" |
| #include <stdio.h> |
| |
| |
| #if HAS_80_BIT_LONG_DOUBLE |
| // Returns: convert a to a signed long long, rounding toward zero. |
| |
| // Assumption: long double is an intel 80 bit floating point type padded with 6 bytes |
| // su_int is a 32 bit integral type |
| // value in long double is representable in di_int (no range checking performed) |
| |
| // gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | |
| // 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm |
| |
| di_int __fixxfdi(long double a); |
| |
| int test__fixxfdi(long double a, di_int expected) |
| { |
| di_int x = __fixxfdi(a); |
| if (x != expected) |
| printf("error in __fixxfdi(%LA) = %llX, expected %llX\n", |
| a, x, expected); |
| return x != expected; |
| } |
| |
| char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0}; |
| char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0}; |
| char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0}; |
| #endif |
| |
| int main() |
| { |
| #if HAS_80_BIT_LONG_DOUBLE |
| if (test__fixxfdi(0.0, 0)) |
| return 1; |
| |
| if (test__fixxfdi(0.5, 0)) |
| return 1; |
| if (test__fixxfdi(0.99, 0)) |
| return 1; |
| if (test__fixxfdi(1.0, 1)) |
| return 1; |
| if (test__fixxfdi(1.5, 1)) |
| return 1; |
| if (test__fixxfdi(1.99, 1)) |
| return 1; |
| if (test__fixxfdi(2.0, 2)) |
| return 1; |
| if (test__fixxfdi(2.01, 2)) |
| return 1; |
| if (test__fixxfdi(-0.5, 0)) |
| return 1; |
| if (test__fixxfdi(-0.99, 0)) |
| return 1; |
| if (test__fixxfdi(-1.0, -1)) |
| return 1; |
| if (test__fixxfdi(-1.5, -1)) |
| return 1; |
| if (test__fixxfdi(-1.99, -1)) |
| return 1; |
| if (test__fixxfdi(-2.0, -2)) |
| return 1; |
| if (test__fixxfdi(-2.01, -2)) |
| return 1; |
| |
| if (test__fixxfdi(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL)) |
| return 1; |
| if (test__fixxfdi(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL)) |
| return 1; |
| |
| if (test__fixxfdi(-0x1.FFFFFEp+62, 0x8000008000000000LL)) |
| return 1; |
| if (test__fixxfdi(-0x1.FFFFFCp+62, 0x8000010000000000LL)) |
| return 1; |
| |
| if (test__fixxfdi(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL)) |
| return 1; |
| if (test__fixxfdi(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL)) |
| return 1; |
| |
| if (test__fixxfdi(-0x1.FFFFFFFFFFFFFp+62, 0x8000000000000400LL)) |
| return 1; |
| if (test__fixxfdi(-0x1.FFFFFFFFFFFFEp+62, 0x8000000000000800LL)) |
| return 1; |
| |
| if (test__fixxfdi(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL)) |
| return 1; |
| if (test__fixxfdi(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL)) |
| return 1; |
| |
| if (test__fixxfdi(-0x1.0000000000000000p+63L, 0x8000000000000000LL)) |
| return 1; |
| if (test__fixxfdi(-0x1.FFFFFFFFFFFFFFFCp+62L, 0x8000000000000001LL)) |
| return 1; |
| if (test__fixxfdi(-0x1.FFFFFFFFFFFFFFF8p+62L, 0x8000000000000002LL)) |
| return 1; |
| |
| #endif |
| return 0; |
| } |