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-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/tree-sra.c8
2 files changed, 12 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9be7f17..94fb7f8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-08-11 Eric Botcazou <ebotcazou@adacore.com>
+
+ * tree-sra.c (build_access_from_expr_1): Use more precise diagnostics
+ for storage order barriers.
+
2017-08-11 Martin Liska <mliska@suse.cz>
PR tree-opt/79987
diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c
index c9865c6..68edbce 100644
--- a/gcc/tree-sra.c
+++ b/gcc/tree-sra.c
@@ -1175,11 +1175,17 @@ build_access_from_expr_1 (tree expr, gimple *stmt, bool write)
else
partial_ref = false;
+ if (storage_order_barrier_p (expr))
+ {
+ disqualify_base_of_expr (expr, "storage order barrier.");
+ return NULL;
+ }
+
/* We need to dive through V_C_Es in order to get the size of its parameter
and not the result type. Ada produces such statements. We are also
capable of handling the topmost V_C_E but not any of those buried in other
handled components. */
- if (TREE_CODE (expr) == VIEW_CONVERT_EXPR && !storage_order_barrier_p (expr))
+ if (TREE_CODE (expr) == VIEW_CONVERT_EXPR)
expr = TREE_OPERAND (expr, 0);
if (contains_view_convert_expr_p (expr))