PR c++/19317

        Leave the return slot target in the MODIFY_EXPR rather than making
        it an argument, but only use it if the CALL_EXPR has a flag set.
        * tree.h (CALL_EXPR_HAS_RETURN_SLOT_ADDR): Rename to
        CALL_EXPR_RETURN_SLOT_OPT.
        * calls.c (expand_call): Adjust.
        * tree-inline.c (expand_call_inline): Adjust.
        * tree-pretty-print.c (dump_generic_node): Adjust.

        And set the flag as appropriate.
        * gimplify.c (gimplify_modify_expr_rhs): Set
        CALL_EXPR_HAS_RETURN_SLOT_ADDR where the LHS is obviously safe.
        * tree-nrv.c (execute_return_slot_opt): Set
        CALL_EXPR_HAS_RETURN_SLOT_ADDR based on escape analysis.
        * tree-pass.h: Declare pass_return_slot.
        * tree-optimize.c (init_tree_optimization_passes): Add it.

        * cp/semantics.c (simplify_aggr_init_expr): Use
        CALL_EXPR_RETURN_SLOT_OPT, not CALL_EXPR_HAS_RETURN_SLOT_ADDR.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101269 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 2 insertions, 2 deletions

diff --git a/gcc/tree-pretty-print.c b/gcc/tree-pretty-print.c
index 04cc8fac187..251c03ced05 100644
--- a/gcc/tree-pretty-print.c
+++ b/gcc/tree-pretty-print.c
@@ -1003,8 +1003,8 @@ dump_generic_node (pretty_printer *buffer, tree node, int spc, int flags,
 	  pp_character (buffer, ']');
 	}
 
-      if (CALL_EXPR_HAS_RETURN_SLOT_ADDR (node))
-	pp_string (buffer, " [return slot addr]");
+      if (CALL_EXPR_RETURN_SLOT_OPT (node))
+	pp_string (buffer, " [return slot optimization]");
       if (CALL_EXPR_TAILCALL (node))
 	pp_string (buffer, " [tail call]");
       break;