53 lines · c
1// REQUIRES: target-is-powerpc64le2// RUN: %clang_builtins %s %librt -o %t && %run %t3 4#include <stdint.h>5#include <stdio.h>6 7#include "fixunstfti_test.h"8 9/* The long double representation, with the high and low portions of10 * the long double, and the corresponding bit patterns of each double. */11typedef union {12 long double ld;13 double d[2]; /* [0] is the high double, [1] is the low double. */14 unsigned long long ull[2]; /* High and low doubles as 64-bit integers. */15} ldUnion;16 17__uint128_t __fixunstfti(long double);18 19int main(int argc, char *argv[]) {20 /* Necessary long double and (unsigned) 128 bit integer21 * declarations used to compare the computed and expected results22 * from converting the IBM double-double to int128. */23 ldUnion ldInput;24 __uint128_t expectedResult, computedResult;25 26 for (int i = 0; i < numTests; ++i) {27 /* Set the expected 128 bit integer and the high and low28 * values of the long double input. */29 ldInput.d[0] = testList[i].hiInput;30 ldInput.d[1] = testList[i].loInput;31 expectedResult = testList[i].result128;32 33 /* Get the computed 128 bit integer from the long double->34 * uint128 conversion, and check for errors between results. */35 computedResult = __fixunstfti(ldInput.ld);36 37 if (computedResult != expectedResult) {38 printf("Error for __fixunstfti at input %La = ( %a , %a ):\n", ldInput.ld,39 ldInput.d[0], ldInput.d[1]);40 printf("\tExpected __uint128_t: 0x%016llx 0x%016llx\n",41 (unsigned long long)(expectedResult >> 64),42 (unsigned long long)expectedResult);43 printf("\tComputed __uint128_t: 0x%016llx 0x%016llx\n\n",44 (unsigned long long)(computedResult >> 64),45 (unsigned long long)computedResult);46 47 return 1;48 }49 }50 51 return 0;52}53