projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a4d82fc JJ |
1 | //===-- fixsfti_test.c - Test __fixsfti -----------------------------------===// |
| 2 | // | |
| 3 | // The LLVM Compiler Infrastructure | |
| 4 | // | |
| 5 | // This file is dual licensed under the MIT and the University of Illinois Open | |
| 6 | // Source Licenses. See LICENSE.TXT for details. | |
| 7 | // | |
| 8 | //===----------------------------------------------------------------------===// | |
| 9 | // | |
| 10 | // This file tests __fixsfti for the compiler_rt library. | |
| 11 | // | |
| 12 | //===----------------------------------------------------------------------===// | |
| 13 | ||
| 14 | #include "int_lib.h" | |
| 15 | #include <stdio.h> | |
| 16 | ||
| 17 | #ifdef CRT_HAS_128BIT | |
| 18 | ||
| 19 | // Returns: convert a to a signed long long, rounding toward zero. | |
| 20 | ||
| 21 | // Assumption: float is a IEEE 32 bit floating point type | |
| 22 | // su_int is a 32 bit integral type | |
| 23 | // value in float is representable in ti_int (no range checking performed) | |
| 24 | ||
| 25 | // seee eeee emmm mmmm mmmm mmmm mmmm mmmm | |
| 26 | ||
| 92a42be0 | 27 | COMPILER_RT_ABI ti_int __fixsfti(float a); |
| 1a4d82fc JJ |
28 | |
| 29 | int test__fixsfti(float a, ti_int expected) | |
| 30 | { | |
| 31 | ti_int x = __fixsfti(a); | |
| 32 | if (x != expected) | |
| 33 | { | |
| 34 | twords xt; | |
| 35 | xt.all = x; | |
| 36 | twords expectedt; | |
| 37 | expectedt.all = expected; | |
| 38 | printf("error in __fixsfti(%A) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n", | |
| 39 | a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low); | |
| 40 | } | |
| 41 | return x != expected; | |
| 42 | } | |
| 43 | ||
| 44 | char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; | |
| 45 | char assumption_2[sizeof(su_int)*CHAR_BIT == 32] = {0}; | |
| 46 | char assumption_3[sizeof(float)*CHAR_BIT == 32] = {0}; | |
| 47 | ||
| 48 | #endif | |
| 49 | ||
| 50 | int main() | |
| 51 | { | |
| 52 | #ifdef CRT_HAS_128BIT | |
| 53 | if (test__fixsfti(0.0F, 0)) | |
| 54 | return 1; | |
| 55 | ||
| 56 | if (test__fixsfti(0.5F, 0)) | |
| 57 | return 1; | |
| 58 | if (test__fixsfti(0.99F, 0)) | |
| 59 | return 1; | |
| 60 | if (test__fixsfti(1.0F, 1)) | |
| 61 | return 1; | |
| 62 | if (test__fixsfti(1.5F, 1)) | |
| 63 | return 1; | |
| 64 | if (test__fixsfti(1.99F, 1)) | |
| 65 | return 1; | |
| 66 | if (test__fixsfti(2.0F, 2)) | |
| 67 | return 1; | |
| 68 | if (test__fixsfti(2.01F, 2)) | |
| 69 | return 1; | |
| 70 | if (test__fixsfti(-0.5F, 0)) | |
| 71 | return 1; | |
| 72 | if (test__fixsfti(-0.99F, 0)) | |
| 73 | return 1; | |
| 74 | if (test__fixsfti(-1.0F, -1)) | |
| 75 | return 1; | |
| 76 | if (test__fixsfti(-1.5F, -1)) | |
| 77 | return 1; | |
| 78 | if (test__fixsfti(-1.99F, -1)) | |
| 79 | return 1; | |
| 80 | if (test__fixsfti(-2.0F, -2)) | |
| 81 | return 1; | |
| 82 | if (test__fixsfti(-2.01F, -2)) | |
| 83 | return 1; | |
| 84 | ||
| 85 | if (test__fixsfti(0x1.FFFFFEp+62F, 0x7FFFFF8000000000LL)) | |
| 86 | return 1; | |
| 87 | if (test__fixsfti(0x1.FFFFFCp+62F, 0x7FFFFF0000000000LL)) | |
| 88 | return 1; | |
| 89 | ||
| 90 | if (test__fixsfti(-0x1.FFFFFEp+62F, make_ti(0xFFFFFFFFFFFFFFFFLL, | |
| 91 | 0x8000008000000000LL))) | |
| 92 | return 1; | |
| 93 | if (test__fixsfti(-0x1.FFFFFCp+62F, make_ti(0xFFFFFFFFFFFFFFFFLL, | |
| 94 | 0x8000010000000000LL))) | |
| 95 | return 1; | |
| 96 | ||
| 97 | if (test__fixsfti(0x1.FFFFFEp+126F, make_ti(0x7FFFFF8000000000LL, 0))) | |
| 98 | return 1; | |
| 99 | if (test__fixsfti(0x1.FFFFFCp+126F, make_ti(0x7FFFFF0000000000LL, 0))) | |
| 100 | return 1; | |
| 101 | ||
| 102 | if (test__fixsfti(-0x1.FFFFFEp+126F, make_ti(0x8000008000000000LL, 0))) | |
| 103 | return 1; | |
| 104 | if (test__fixsfti(-0x1.FFFFFCp+126F, make_ti(0x8000010000000000LL, 0))) | |
| 105 | return 1; | |
| 106 | ||
| 107 | #else | |
| 108 | printf("skipped\n"); | |
| 109 | #endif | |
| 110 | return 0; | |
| 111 | } |