summaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-10.c
blob: 0e59df53ee12d2f00e72e7ae7e576478044d4b51 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-pre-stats" } */

union loc {  unsigned reg; signed offset; };
void __frame_state_for (volatile char *state_in, int x)
{
    union loc fs;
    int reg;
    for (;;)     {
        switch (x)  {
	    case 0:
		*state_in = fs.reg;
	    case 1:
		*state_in = fs.offset;
	}
    }
}

/* { dg-final { scan-tree-dump "Insertions: 0" "pre" } } */
/* { dg-final { cleanup-tree-dump "pre" } } */