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comparison gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-1a.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 84e7813d76e9
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68:561a7518be6b 111:04ced10e8804
1 /* { dg-require-effective-target vect_int } */
2
3 #include <stdarg.h>
4 #include "tree-vect.h"
5
6 #define N 16
7 unsigned short udata_sh[N] =
8 { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 };
9 #define SUM 210
10
11 __attribute__ ((noinline)) int
12 foo ()
13 {
14 int i;
15 unsigned int intsum = 0;
16
17 /* widenning sum: sum shorts into int. */
18 for (i = 0; i < N; i++)
19 {
20 intsum += udata_sh[i];
21 }
22
23 /* check results: */
24 if (intsum != SUM)
25 abort ();
26
27 return 0;
28 }
29
30 int
31 main (void)
32 {
33 check_vect ();
34 return foo ();
35 }
36
37 /* { dg-final { scan-tree-dump-times "vect_recog_widen_sum_pattern: detected" 1 "vect" } } */
38 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_widen_sum_hi_to_si } } } */
39 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_widen_sum_hi_to_si } } } } */