Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/store_merging_6.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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68:561a7518be6b | 111:04ced10e8804 |
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1 /* { dg-do run } */ | |
2 /* { dg-require-effective-target store_merge } */ | |
3 /* { dg-options "-O2 -fdump-tree-store-merging" } */ | |
4 | |
5 /* Check that we can widen accesses to bitfields. */ | |
6 | |
7 struct bar { | |
8 int a : 3; | |
9 unsigned char b : 4; | |
10 unsigned char c : 1; | |
11 char d; | |
12 char e; | |
13 char f; | |
14 char g; | |
15 }; | |
16 | |
17 __attribute__ ((noinline)) void | |
18 foozero (struct bar *p) | |
19 { | |
20 p->b = 0; | |
21 p->a = 0; | |
22 p->c = 0; | |
23 p->d = 0; | |
24 p->e = 0; | |
25 p->f = 0; | |
26 p->g = 0; | |
27 } | |
28 | |
29 __attribute__ ((noinline)) void | |
30 foo1 (struct bar *p) | |
31 { | |
32 p->b = 3; | |
33 p->a = 2; | |
34 p->c = 1; | |
35 p->d = 4; | |
36 p->e = 5; | |
37 } | |
38 | |
39 int | |
40 main (void) | |
41 { | |
42 struct bar p; | |
43 foozero (&p); | |
44 foo1 (&p); | |
45 if (p.a != 2 || p.b != 3 || p.c != 1 || p.d != 4 || p.e != 5 | |
46 || p.f != 0 || p.g != 0) | |
47 __builtin_abort (); | |
48 | |
49 return 0; | |
50 } | |
51 | |
52 | |
53 /* { dg-final { scan-tree-dump-times "Merging successful" 2 "store-merging" } } */ |