blob: 0b29ffb68d4db25da80cf2447fe626cc13e3f46b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/* { dg-do link { target { ! int16 } } } */
/* { dg-options "--param allow-store-data-races=0" } */
/* { dg-final { simulate-thread } } */
#include <stdio.h>
#include "../../gcc.dg/simulate-thread/simulate-thread.h"
/* Test that we don't store past VAR.K. */
struct S
{
volatile int i;
volatile int j: 32;
volatile int k: 15;
volatile unsigned char c[2];
} var;
static int global = 0;
void simulate_thread_other_threads()
{
global++;
var.c[0] = global % 256;
var.c[1] = global % 256;
}
int simulate_thread_step_verify()
{
if (var.c[0] != global % 256
|| var.c[1] != global % 256)
{
printf("FAIL: invalid intermediate result for <var.c[]>.\n");
return 1;
}
return 0;
}
int simulate_thread_final_verify()
{
if (var.k != 13)
{
printf("FAIL: invalid final result\n");
return 1;
}
return 0;
}
__attribute__((noinline))
void simulate_thread_main()
{
var.k = 13;
}
int main()
{
simulate_thread_main();
simulate_thread_done();
return 0;
}
|
