diff options
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 505d63b..368d3df 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -1036,6 +1036,7 @@ dr_analyze_indices (struct data_reference *dr, loop_p nest, loop_p loop) base, memoff); MR_DEPENDENCE_CLIQUE (ref) = MR_DEPENDENCE_CLIQUE (old); MR_DEPENDENCE_BASE (ref) = MR_DEPENDENCE_BASE (old); + DR_UNCONSTRAINED_BASE (dr) = true; access_fns.safe_push (access_fn); } } @@ -1453,7 +1454,8 @@ dr_may_alias_p (const struct data_reference *a, const struct data_reference *b, offset/overlap based analysis but have to rely on points-to information only. */ if (TREE_CODE (addr_a) == MEM_REF - && TREE_CODE (TREE_OPERAND (addr_a, 0)) == SSA_NAME) + && (DR_UNCONSTRAINED_BASE (a) + || TREE_CODE (TREE_OPERAND (addr_a, 0)) == SSA_NAME)) { /* For true dependences we can apply TBAA. */ if (flag_strict_aliasing @@ -1469,7 +1471,8 @@ dr_may_alias_p (const struct data_reference *a, const struct data_reference *b, build_fold_addr_expr (addr_b)); } else if (TREE_CODE (addr_b) == MEM_REF - && TREE_CODE (TREE_OPERAND (addr_b, 0)) == SSA_NAME) + && (DR_UNCONSTRAINED_BASE (b) + || TREE_CODE (TREE_OPERAND (addr_b, 0)) == SSA_NAME)) { /* For true dependences we can apply TBAA. */ if (flag_strict_aliasing |