+2006-05-04 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/26447
+ * tree-ssa-pre.c (realify_fake_stores): For necessary loads
+ produce SSA_NAME copies before the store stmt to avoid
+ breaking exception handling.
+
2006-05-04 Jakub Jelinek <jakub@redhat.com>
PR middle-end/27388
/* Mark the temp variable as referenced */
add_referenced_tmp_var (SSA_NAME_VAR (TREE_OPERAND (stmt, 0)));
- /* Put the new statement in GC memory, fix up the annotation
- and SSA_NAME_DEF_STMT on it, and then put it in place of
- the old statement in the IR stream. */
- newstmt = unshare_expr (stmt);
+ /* Put the new statement in GC memory, fix up the
+ SSA_NAME_DEF_STMT on it, and then put it in place of
+ the old statement before the store in the IR stream
+ as a plain ssa name copy. */
+ bsi = bsi_for_stmt (stmt);
+ bsi_prev (&bsi);
+ newstmt = build2 (MODIFY_EXPR, void_type_node,
+ TREE_OPERAND (stmt, 0),
+ TREE_OPERAND (bsi_stmt (bsi), 1));
SSA_NAME_DEF_STMT (TREE_OPERAND (newstmt, 0)) = newstmt;
-
- newstmt->common.ann = stmt->common.ann;
-
+ bsi_insert_before (&bsi, newstmt, BSI_SAME_STMT);
bsi = bsi_for_stmt (stmt);
- bsi_replace (&bsi, newstmt, true);
+ bsi_remove (&bsi, true);
}
else
release_defs (stmt);