75 lines · c
1// RUN: %clang_builtins %s %librt -o %t && %run %t2// REQUIRES: librt_has_extendxftf23 4#include "int_lib.h"5#include <stdio.h>6 7#if __LDBL_MANT_DIG__ == 64 && defined(__x86_64__) && \8 (defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__))9 10#include "fp_test.h"11 12COMPILER_RT_ABI tf_float __extendxftf2(long double a);13 14int test__extendxftf2(long double a, uint64_t expectedHi, uint64_t expectedLo) {15 tf_float x = __extendxftf2(a);16 int ret = compareResultF128(x, expectedHi, expectedLo);17 18 if (ret) {19 printf("error in __extendxftf2(%.20Lf) = %.20Lf, "20 "expected %.20Lf\n",21 a, x, fromRep128(expectedHi, expectedLo));22 }23 return ret;24}25 26char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};27 28#endif29 30int main() {31#if __LDBL_MANT_DIG__ == 64 && defined(__x86_64__) && \32 (defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__))33 // qNaN34 if (test__extendxftf2(makeQNaN80(), UINT64_C(0x7fff800000000000),35 UINT64_C(0x0)))36 return 1;37 // NaN38 if (test__extendxftf2(makeNaN80(UINT64_C(0x3fffffffffffffff)),39 UINT64_C(0x7fff7fffffffffff),40 UINT64_C(0xfffe000000000000)))41 return 1;42 // inf43 if (test__extendxftf2(makeInf80(), UINT64_C(0x7fff000000000000),44 UINT64_C(0x0)))45 return 1;46 // zero47 if (test__extendxftf2(0.0, UINT64_C(0x0), UINT64_C(0x0)))48 return 1;49 if (test__extendxftf2(0x1.23456789abcdefp+5, UINT64_C(0x400423456789abcd),50 UINT64_C(0xf000000000000000)))51 return 1;52 if (test__extendxftf2(0x1.edcba987654321fp-9, UINT64_C(0x3ff6edcba9876543),53 UINT64_C(0x2000000000000000)))54 return 1;55 if (test__extendxftf2(0x1.23456789abcdefp+45, UINT64_C(0x402c23456789abcd),56 UINT64_C(0xf000000000000000)))57 return 1;58 if (test__extendxftf2(0x1.edcba987654321fp-45, UINT64_C(0x3fd2edcba9876543),59 UINT64_C(0x2000000000000000)))60 return 1;61 // denormal number62 if (test__extendxftf2(1e-4932L, UINT64_C(0x00004c248f91e526),63 UINT64_C(0xafe0000000000000)))64 return 1;65 // denormal number66 if (test__extendxftf2(2e-4932L, UINT64_C(0x000098491f23ca4d),67 UINT64_C(0x5fc0000000000000)))68 return 1;69#else70 printf("skipped\n");71 72#endif73 return 0;74}75