1 // REQUIRES: target-is-powerpc64le
2 // RUN: %clang_builtins %s %librt -o %t && %run %t
3
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 of
10 * the long double, and the corresponding bit patterns of each double. */
11 typedef 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
main(int argc,char * argv[])19 int main(int argc, char *argv[]) {
20 /* Necessary long double and (unsigned) 128 bit integer
21 * declarations used to compare the computed and expected results
22 * 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 low
28 * 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