blob: c683218799df50ee9b61c35e63dbf6fb4739e147 (
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
|
/* { dg-do compile } */
/* { dg-options "-O -fno-tree-sra -fdump-tree-fre1" } */
int foo(void)
{
int a[16] = {};
return a[3];
}
int bar(void)
{
int a[16];
__builtin_memset (a, 0, sizeof(a));
return a[3];
}
struct X { int i; };
int baz(void)
{
struct X a,b;
a.i = 0;
b = a;
return b.i;
}
int bazzoo (void)
{
struct X b, a = {};
b = a;
return b.i;
}
/* { dg-final { scan-tree-dump-times "= 0;" 5 "fre1" } } */
/* { dg-final { cleanup-tree-dump "fre1" } } */
|
