diff options
Diffstat (limited to 'gcc/tree-sra.c')
| -rw-r--r-- | gcc/tree-sra.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c index d177f1b..8dfc923 100644 --- a/gcc/tree-sra.c +++ b/gcc/tree-sra.c @@ -2723,6 +2723,19 @@ budget_for_propagation_access (tree decl) return true; } +/* Return true if ACC or any of its subaccesses has grp_child set. */ + +static bool +access_or_its_child_written (struct access *acc) +{ + if (acc->grp_write) + return true; + for (struct access *sub = acc->first_child; sub; sub = sub->next_sibling) + if (access_or_its_child_written (sub)) + return true; + return false; +} + /* Propagate subaccesses and grp_write flags of RACC across an assignment link to LACC. Enqueue sub-accesses as necessary so that the write flag is propagated transitively. Return true if anything changed. Additionally, if @@ -2836,7 +2849,7 @@ propagate_subaccesses_from_rhs (struct access *lacc, struct access *racc) if (rchild->grp_unscalarizable_region || !budget_for_propagation_access (lacc->base)) { - if (rchild->grp_write && !lacc->grp_write) + if (!lacc->grp_write && access_or_its_child_written (rchild)) { ret = true; subtree_mark_written_and_rhs_enqueue (lacc); |