diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/forwprop-12.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/forwprop-12.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/forwprop-12.c b/gcc/testsuite/gcc.dg/tree-ssa/forwprop-12.c new file mode 100644 index 000000000..1c5ea02ba --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/forwprop-12.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-forwprop1" } */ + +struct X { int a[256]; }; + +int foo(struct X *p, __SIZE_TYPE__ i) +{ + int *q = &p->a[0]; + int *q2 = (int *)((void *)q + i*4 + 32); + return *q2; +} + +int bar(struct X *p, int i) +{ + return *((int *)p + i + 8); +} + +/* We should have propagated the base array address through the + address arithmetic into the memory access as an array access. */ + +/* { dg-final { scan-tree-dump-times "->a\\\[D\\\." 2 "forwprop1" { xfail *-*-* } } } */ +/* { dg-final { cleanup-tree-dump "forwprop1" } } */ |