133 lines · c
1// RUN: %clang_builtins %s %librt -o %t && %run %t2// REQUIRES: librt_has_fixunsxfti3// REQUIRES: x86-target-arch4 5#include "int_lib.h"6#include <stdio.h>7 8#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE9 10// Returns: convert a to a unsigned long long, rounding toward zero.11// Negative values all become zero.12 13// Assumption: long double is an intel 80 bit floating point type padded with 6 bytes14// tu_int is a 64 bit integral type15// value in long double is representable in tu_int or is negative 16// (no range checking performed)17 18// gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |19// 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm20 21COMPILER_RT_ABI tu_int __fixunsxfti(long double a);22 23int test__fixunsxfti(long double a, tu_int expected)24{25 tu_int x = __fixunsxfti(a);26 if (x != expected)27 {28 utwords xt;29 xt.all = x;30 utwords expectedt;31 expectedt.all = expected;32 printf("error in __fixunsxfti(%LA) = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX\n",33 a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low);34 }35 return x != expected;36}37 38char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};39char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};40char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};41 42#endif43 44int main()45{46#if defined(CRT_HAS_128BIT) && HAS_80_BIT_LONG_DOUBLE47 if (test__fixunsxfti(0.0, 0))48 return 1;49 50 if (test__fixunsxfti(0.5, 0))51 return 1;52 if (test__fixunsxfti(0.99, 0))53 return 1;54 if (test__fixunsxfti(1.0, 1))55 return 1;56 if (test__fixunsxfti(1.5, 1))57 return 1;58 if (test__fixunsxfti(1.99, 1))59 return 1;60 if (test__fixunsxfti(2.0, 2))61 return 1;62 if (test__fixunsxfti(2.01, 2))63 return 1;64 if (test__fixunsxfti(-0.5, 0))65 return 1;66 if (test__fixunsxfti(-0.99, 0))67 return 1;68 if (test__fixunsxfti(-1.0, 0))69 return 1;70 if (test__fixunsxfti(-1.5, 0))71 return 1;72 if (test__fixunsxfti(-1.99, 0))73 return 1;74 if (test__fixunsxfti(-2.0, 0))75 return 1;76 if (test__fixunsxfti(-2.01, 0))77 return 1;78 79 if (test__fixunsxfti(0x1.FFFFFEp+62, 0x7FFFFF8000000000LL))80 return 1;81 if (test__fixunsxfti(0x1.FFFFFCp+62, 0x7FFFFF0000000000LL))82 return 1;83 84 if (test__fixunsxfti(-0x1.FFFFFEp+62, 0))85 return 1;86 if (test__fixunsxfti(-0x1.FFFFFCp+62, 0))87 return 1;88 89 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFp+62, 0x7FFFFFFFFFFFFC00LL))90 return 1;91 if (test__fixunsxfti(0x1.FFFFFFFFFFFFEp+62, 0x7FFFFFFFFFFFF800LL))92 return 1;93 94 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFp+62, 0))95 return 1;96 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFEp+62, 0))97 return 1;98 99 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+63L, 0xFFFFFFFFFFFFFFFFLL))100 return 1;101 if (test__fixunsxfti(0x1.0000000000000002p+63L, 0x8000000000000001LL))102 return 1;103 if (test__fixunsxfti(0x1.0000000000000000p+63L, 0x8000000000000000LL))104 return 1;105 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+62L, 0x7FFFFFFFFFFFFFFFLL))106 return 1;107 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+62L, 0x7FFFFFFFFFFFFFFELL))108 return 1;109 110 if (test__fixunsxfti(-0x1.0000000000000000p+63L, 0))111 return 1;112 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFFCp+62L, 0))113 return 1;114 if (test__fixunsxfti(-0x1.FFFFFFFFFFFFFFF8p+62L, 0))115 return 1;116 117 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFEp+127L, make_ti(0xFFFFFFFFFFFFFFFFLL, 0)))118 return 1;119 if (test__fixunsxfti(0x1.0000000000000002p+127L, make_ti(0x8000000000000001LL, 0)))120 return 1;121 if (test__fixunsxfti(0x1.0000000000000000p+127L, make_ti(0x8000000000000000LL, 0)))122 return 1;123 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFFCp+126L, make_ti(0x7FFFFFFFFFFFFFFFLL, 0)))124 return 1;125 if (test__fixunsxfti(0x1.FFFFFFFFFFFFFFF8p+126L, make_ti(0x7FFFFFFFFFFFFFFELL, 0)))126 return 1;127 128#else129 printf("skipped\n");130#endif131 return 0;132}133