tree.h (SAVE_EXPR_RESOLVED_P): New.

        * tree.h (SAVE_EXPR_RESOLVED_P): New.
        * gimplify.c (gimplify_save_expr): Use it.
        * expr.c (expand_expr_real_1): Likewise.  Also set DECL_IGNORED_P
        on the temporary variable.

From-SVN: r86387

1 files changed, 7 insertions, 0 deletions

diff --git a/gcc/tree.h b/gcc/tree.h
index 3107041..c8f3c5e 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -232,6 +232,8 @@ struct tree_common GTY(())
            ASM_EXPR
        TYPE_CACHED_VALUES_P in
           ..._TYPE
+       SAVE_EXPR_RESOLVED_P in
+	  SAVE_EXPR
 
    private_flag:
 
@@ -788,6 +790,11 @@ extern void tree_operand_check_failed (int, enum tree_code,
    of cached values, or is something else.  */
 #define TYPE_CACHED_VALUES_P(NODE) (TYPE_CHECK(NODE)->common.public_flag)
 
+/* In a SAVE_EXPR, indicates that the original expression has already
+   been substituted with a VAR_DECL that contains the value.  */
+#define SAVE_EXPR_RESOLVED_P(NODE) \
+  (TREE_CHECK (NODE, SAVE_EXPR)->common.public_flag)
+
 /* In any expression, decl, or constant, nonzero means it has side effects or
    reevaluation of the whole expression could produce a different value.
    This is set if any subexpression is a function call, a side effect or a