re PR c++/34196 (uninitialized variable warning in dead exception region)

        PR c++/34196
        * tree.h (TRY_CATCH_IS_CLEANUP): New macro.
        * cp/decl.c (wrap_cleanups_r): Set TRY_CATCH_IS_CLEANUP.
        * tree-eh.c (honor_protect_cleanup_actions): Strip TRY_CATCH_EXPR
        if it is set.

From-SVN: r131710

1 files changed, 8 insertions, 1 deletions

diff --git a/gcc/tree.h b/gcc/tree.h
index 52cb9731730..de0b11d4e4a 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -447,6 +447,8 @@ struct gimple_stmt GTY(())
            IDENTIFIER_NODE
        CLEANUP_EH_ONLY in
            TARGET_EXPR, WITH_CLEANUP_EXPR
+       TRY_CATCH_IS_CLEANUP in
+           TRY_CATCH_EXPR
        ASM_INPUT_P in
            ASM_EXPR
        EH_FILTER_MUST_NOT_THROW in EH_FILTER_EXPR
@@ -1166,11 +1168,16 @@ extern void omp_clause_range_check_failed (const_tree, const char *, int,
    should be cleaned up some day.  */
 #define TREE_STATIC(NODE) ((NODE)->base.static_flag)
 
-/* In a TARGET_EXPR, WITH_CLEANUP_EXPR, means that the pertinent cleanup
+/* In a TARGET_EXPR or WITH_CLEANUP_EXPR, means that the pertinent cleanup
    should only be executed if an exception is thrown, not on normal exit
    of its scope.  */
 #define CLEANUP_EH_ONLY(NODE) ((NODE)->base.static_flag)
 
+/* In a TRY_CATCH_EXPR, means that the handler should be considered a
+   separate cleanup in honor_protect_cleanup_actions.  */
+#define TRY_CATCH_IS_CLEANUP(NODE) \
+  (TRY_CATCH_EXPR_CHECK (NODE)->base.static_flag)
+
 /* Used as a temporary field on a CASE_LABEL_EXPR to indicate that the
    CASE_HIGH operand has been processed.  */
 #define CASE_HIGH_SEEN(NODE) \