Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/tree-ssa/loop-interchange-13.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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111:04ced10e8804 | 131:84e7813d76e9 |
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1 /* { dg-do run } */ | |
2 /* { dg-options "-O2 -floop-interchange -fdump-tree-linterchange-details" } */ | |
3 | |
4 /* Copied from graphite/interchange-4.c */ | |
5 | |
6 #define DEBUG 0 | |
7 #if DEBUG | |
8 #include <stdio.h> | |
9 #endif | |
10 | |
11 unsigned u[1024]; | |
12 | |
13 static void __attribute__((noinline,noclone,noipa)) | |
14 foo (int N, int M, unsigned *res) | |
15 { | |
16 int i, j; | |
17 unsigned sum = 0; | |
18 if (N > 0) | |
19 for (i = 0; i < M; i++) | |
20 for (j = 0; j < N; j++) | |
21 sum = u[i + 3 * j] - sum; | |
22 | |
23 *res = sum; | |
24 } | |
25 | |
26 extern void abort (); | |
27 | |
28 int | |
29 main (void) | |
30 { | |
31 int i, j; | |
32 unsigned res; | |
33 | |
34 u[0] = 1; | |
35 u[1] = 2; | |
36 u[2] = 4; | |
37 u[3] = 5; | |
38 u[4] = 7; | |
39 u[5] = 8; | |
40 | |
41 foo (2, 3, &res); | |
42 | |
43 #if DEBUG | |
44 fprintf (stderr, "res = %d \n", res); | |
45 #endif | |
46 | |
47 if (res != 13) | |
48 abort (); | |
49 | |
50 return 0; | |
51 } | |
52 | |
53 /* { dg-final { scan-tree-dump-not "is interchanged" "linterchange"} } */ |