rt_gccstream/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-28.c

27 lines
525 B
C

/* { dg-do run } */
/* { dg-options "-O -fdump-tree-ccp1" } */
extern void abort (void);
static int g[1];
static int * const p = &g[0];
static int * const q = &g[0];
int main(void)
{
g[0] = 1;
*p = 0;
*p = *q;
if (g[0] != 0)
abort ();
return 0;
}
/* We should have replaced all loads from p and q with the constant
initial value. */
/* { dg-final { scan-tree-dump-times "= p;" 0 "ccp1" } } */
/* { dg-final { scan-tree-dump-times "= q;" 0 "ccp1" } } */
/* { dg-final { cleanup-tree-dump "ccp1" } } */