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comparison gcc/testsuite/gcc.dg/store_merging_20.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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111:04ced10e8804 131:84e7813d76e9
1 /* { dg-do run } */
2 /* { dg-require-effective-target store_merge } */
3 /* { dg-options "-O2 -fdump-tree-store-merging" } */
4
5 extern void abort (void);
6
7 struct S1 {
8 unsigned int flag : 1;
9 unsigned int size : 31;
10 };
11
12 __attribute__((noipa))
13 void foo1 (struct S1 *s, unsigned int size)
14 {
15 s->flag = 1;
16 s->size = size & 0x7FFFFFFF;
17 }
18
19 struct S2 {
20 unsigned int flag : 1;
21 unsigned int size : 15;
22 unsigned short count;
23 };
24
25 __attribute__((noipa))
26 void foo2 (struct S2 *s, unsigned short size)
27 {
28 s->flag = 1;
29 s->size = size;
30 s->count = 0xABCD;
31 }
32
33 struct S3 {
34 unsigned int n1 : 4;
35 unsigned int c : 8;
36 unsigned int n2 : 4;
37 };
38
39 __attribute__((noipa))
40 void foo3 (struct S3 *s, unsigned char n1, unsigned char c, unsigned char n2)
41 {
42 s->n1 = n1 & 0xF;
43 s->n2 = n2 & 0xF;
44 s->c = c;
45 }
46
47 int main (void)
48 {
49 struct S1 s1;
50 struct S2 s2;
51 struct S3 s3;
52
53 foo1 (&s1, 0x12345678);
54 if (s1.flag != 1 || s1.size != 0x12345678)
55 abort ();
56
57 foo2 (&s2, 0x1234);
58 if (s2.flag != 1 || s2.size != 0x1234 || s2.count != 0xABCD)
59 abort ();
60
61 foo3 (&s3, 0x12, 0x34, 0x56);
62 if (s3.n1 != 0x2 || s3.c != 0x34 || s3.n2 != 0x6)
63 abort ();
64
65 return 0;
66 }
67
68 /* { dg-final { scan-tree-dump-times "Merging successful" 3 "store-merging" } } */