diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c new file mode 100644 index 000000000..d4121122b --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pta-ptrarith-1.c @@ -0,0 +1,26 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fno-tree-forwprop -fno-tree-ccp -fdump-tree-ealias" } */ + +extern void abort (void); +struct X { + int *p; + int *q; + int *r; +}; +int __attribute__((noinline)) +foo(int i, int j, int k, int off) +{ + struct X x; + int **p, *q; + x.p = &i; + x.q = &j; + x.r = &k; + p = &x.q; + p += 1; + /* *p points to { k } */ + q = *p; + return *q; +} + +/* { dg-final { scan-tree-dump "q_. = { k }" "ealias" } } */ +/* { dg-final { cleanup-tree-dump "ealias" } } */ |