Mercurial > hg > CbC > CbC_gcc

comparison gcc/testsuite/gcc.dg/vect/vect-avg-11.c @ 131:84e7813d76e9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children
comparison
equal deleted inserted replaced
111:04ced10e8804 131:84e7813d76e9
1 /* { dg-require-effective-target vect_int } */
2
3 #include "tree-vect.h"
4
5 #define N 50
6
7 #ifndef SIGNEDNESS
8 #define SIGNEDNESS unsigned
9 #endif
10 #ifndef BIAS
11 #define BIAS 0
12 #endif
13
14 void __attribute__ ((noipa))
15 f (SIGNEDNESS char *restrict a, SIGNEDNESS char *restrict b,
16 SIGNEDNESS char *restrict c)
17 {
18 for (__INTPTR_TYPE__ i = 0; i < N; ++i)
19 {
20 int tmp = b[i];
21 tmp ^= 0x55;
22 tmp += BIAS;
23 tmp += c[i];
24 tmp >>= 1;
25 tmp |= 0x40;
26 a[i] = tmp;
27 }
28 }
29
30 #define BASE1 ((SIGNEDNESS int) -1 < 0 ? -126 : 4)
31 #define BASE2 ((SIGNEDNESS int) -1 < 0 ? -101 : 26)
32
33 int
34 main (void)
35 {
36 check_vect ();
37
38 SIGNEDNESS char a[N], b[N], c[N];
39 for (int i = 0; i < N; ++i)
40 {
41 b[i] = BASE1 + i * 5;
42 c[i] = BASE2 + i * 4;
43 asm volatile ("" ::: "memory");
44 }
45 f (a, b, c);
46 for (int i = 0; i < N; ++i)
47 if (a[i] != (((((BASE1 + i * 5) ^ 0x55)
48 + (BASE2 + i * 4)
49 + BIAS) >> 1) | 0x40))
50 __builtin_abort ();
51 return 0;
52 }
53
54 /* { dg-final { scan-tree-dump "vect_recog_average_pattern: detected" "vect" } } */
55 /* { dg-final { scan-tree-dump {\.AVG_FLOOR} "vect" { target vect_avg_qi } } } */
56 /* { dg-final { scan-tree-dump-not {vector\([^\n]*short} "vect" { target vect_avg_qi } } } */
57 /* { dg-final { scan-tree-dump-times "vectorized 1 loop" 1 "vect" { target vect_avg_qi } } } */