diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-28.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-28.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-28.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-28.c new file mode 100644 index 000000000..f5dbe70b3 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-28.c @@ -0,0 +1,26 @@ +/* { 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" } } */ |