1 /* { dg-do run { target { powerpc*-*-* && { p8vector_hw && int128 } } } } */
2 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
3 /* { dg-options "-mcpu=power8 -O3" } */
4
5
6 /* Test that the vec_adde builtin works as expected. */
7
8 #include "altivec.h"
9
10 #define N 4096
11
12 void abort ();
13
14 #define define_test_functions(STYPE, NAMESUFFIX) \
15 \
16 STYPE result_##NAMESUFFIX[N]; \
17 STYPE addend1_##NAMESUFFIX[N]; \
18 STYPE addend2_##NAMESUFFIX[N]; \
19 STYPE carry_##NAMESUFFIX[N]; \
20 STYPE expected_##NAMESUFFIX[N]; \
21 \
22 __attribute__((noinline)) void vector_tests_##NAMESUFFIX () \
23 { \
24 vector STYPE v1, v2, v3, tmp; \
25 int i; \
26 for (i = 0; i < N; i+=16/sizeof (STYPE)) \
27 { \
28 /* result=addend1+addend2+(carry & 0x1). */ \
29 v1 = (vector STYPE) { addend1_##NAMESUFFIX[i] }; \
30 v2 = (vector STYPE) { addend2_##NAMESUFFIX[i] }; \
31 v3 = (vector STYPE) { carry_##NAMESUFFIX[i] }; \
32 \
33 tmp = vec_adde (v1, v2, v3); \
34 result_##NAMESUFFIX[i] = tmp[0]; \
35 } \
36 } \
37 \
38 __attribute__((noinline)) void init_##NAMESUFFIX () \
39 { \
40 int i; \
41 for (i = 0; i < N; ++i) \
42 { \
43 result_##NAMESUFFIX[i] = 0; \
44 addend1_##NAMESUFFIX[i] = 1; \
45 addend2_##NAMESUFFIX[i] = 2; \
46 carry_##NAMESUFFIX[i] = (i%12); \
47 expected_##NAMESUFFIX[i] = addend1_##NAMESUFFIX[i] + \
48 addend2_##NAMESUFFIX[i] + \
49 (carry_##NAMESUFFIX[i] & 0x1); \
50 } \
51 } \
52 \
53 __attribute__((noinline)) void verify_results_##NAMESUFFIX () \
54 { \
55 int i; \
56 for (i = 0; i < N; ++i) \
57 { \
58 if (result_##NAMESUFFIX[i] != expected_##NAMESUFFIX[i]) \
59 abort (); \
60 } \
61 }
62
63
64 #define execute_test_functions(STYPE, NAMESUFFIX) \
65 { \
66 init_##NAMESUFFIX (); \
67 vector_tests_##NAMESUFFIX (); \
68 verify_results_##NAMESUFFIX (); \
69 }
70
71
72 define_test_functions (signed __int128, si128);
73 define_test_functions (unsigned __int128, ui128);
74
main()75 int main ()
76 {
77 execute_test_functions (signed __int128, si128);
78 execute_test_functions (unsigned __int128, ui128);
79
80 return 0;
81 }
82
83
84