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comparison gcc/testsuite/gcc.dg/vect/no-vfa-vect-51.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 /* { dg-require-effective-target vect_float } */
2
3 #include <stdarg.h>
4 #include "tree-vect.h"
5
6 #define N 256
7
8 __attribute__ ((noinline))
9 void bar (const float *pa, const float *pb, const float *pc)
10 {
11 int i;
12
13 /* check results: */
14 for (i = 0; i < N; i++)
15 {
16 if (pa[i] != (pb[i] * pc[i]))
17 abort ();
18 }
19
20 return;
21 }
22
23 /* Unaligned pointer accesses, with unknown alignment.
24 The loop bound is unknown.
25 Can't prove that the pointers don't alias.
26 vect-45.c is similar to this one with one difference:
27 the loop bound is known.
28 vect-50.c is similar to this one with one difference:
29 Aliasing is not a problem. */
30
31 __attribute__ ((noinline)) int
32 main1 (int n, float *pa, float *pb, float *pc)
33 {
34 int i;
35
36 for (i = 0; i < n; i++)
37 {
38 pa[i] = pb[i] * pc[i];
39 }
40
41 bar (pa,pb,pc);
42
43 return 0;
44 }
45
46 int main (void)
47 {
48 int i;
49 float a[N];
50 float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
51 float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
52
53 check_vect ();
54
55 main1 (N,a,b,c);
56 return 0;
57 }
58
59 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail *-*-* } } } */