78 lines · c
1// RUN: %clang_builtins %s %librt -o %t && %run %t2// REQUIRES: librt_has_extenddftf23 4#include "int_lib.h"5#include <stdio.h>6 7#if __LDBL_MANT_DIG__ == 1138 9#include "fp_test.h"10 11COMPILER_RT_ABI long double __extenddftf2(double a);12 13int test__extenddftf2(double a, uint64_t expectedHi, uint64_t expectedLo)14{15 long double x = __extenddftf2(a);16 int ret = compareResultF128(x, expectedHi, expectedLo);17 18 if (ret){19 printf("error in test__extenddftf2(%f) = %.20Lf, "20 "expected %.20Lf\n", a, x, fromRep128(expectedHi, expectedLo));21 }22 return ret;23}24 25char assumption_1[sizeof(long double) * CHAR_BIT == 128] = {0};26 27#endif28 29int main()30{31#if __LDBL_MANT_DIG__ == 11332 // qNaN33 if (test__extenddftf2(makeQNaN64(),34 UINT64_C(0x7fff800000000000),35 UINT64_C(0x0)))36 return 1;37 // NaN38 if (test__extenddftf2(makeNaN64(UINT64_C(0x7100000000000)),39 UINT64_C(0x7fff710000000000),40 UINT64_C(0x0)))41 return 1;42 // inf43 if (test__extenddftf2(makeInf64(),44 UINT64_C(0x7fff000000000000),45 UINT64_C(0x0)))46 return 1;47 // zero48 if (test__extenddftf2(0.0, UINT64_C(0x0), UINT64_C(0x0)))49 return 1;50 51 if (test__extenddftf2(0x1.23456789abcdefp+5,52 UINT64_C(0x400423456789abcd),53 UINT64_C(0xf000000000000000)))54 return 1;55 if (test__extenddftf2(0x1.edcba987654321fp-9,56 UINT64_C(0x3ff6edcba9876543),57 UINT64_C(0x2000000000000000)))58 return 1;59 if (test__extenddftf2(0x1.23456789abcdefp+45,60 UINT64_C(0x402c23456789abcd),61 UINT64_C(0xf000000000000000)))62 return 1;63 if (test__extenddftf2(0x1.edcba987654321fp-45,64 UINT64_C(0x3fd2edcba9876543),65 UINT64_C(0x2000000000000000)))66 return 1;67 // denormal68 if (test__extenddftf2(1.8194069811494184E-308,69 UINT64_C(0x3c00a2a7757954b9),70 UINT64_C(0x6000000000000000)))71 return 1;72#else73 printf("skipped\n");74 75#endif76 return 0;77}78