c-common.h (genrtl_expr_stmt_value): Declare.

* c-common.h (genrtl_expr_stmt_value): Declare.
* c-semantics.c (genrtl_goto_stmt): Redirect to...
(genrtl_goto_stmt_value): ... this new function.  Pass new
argument down to expand_expr_stmt_value, taking
TREE_ADDRESSABLE into account.
* c-common.c (c_expand_expr): Mark the last EXPR_STMT of a
STMT_EXPR as addressable, i.e., one whose result we want.
* expr.c (expand_expr): Don't save expression statement value
of labeled_blocks or loop_exprs.
* stmt.c (expand_expr_stmt): Redirect to...
(expand_expr_stmt_value): ... this new function.  Use new
argument to tell whether to save expression value.
(expand_end_stmt_expr): Reset last_expr_type and
last_expr_value if we don't have either.
* tree-inline.c (declare_return_variable): Mark its use
statement as addressable.
* tree.h: Document new use of TREE_ADDRESSABLE.
(expand_expr_stmt_value): Declare.

From-SVN: r48456

1 files changed, 3 insertions, 3 deletions

diff --git a/gcc/expr.c b/gcc/expr.c
index 60c3431..1388b6ff8 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -1,6 +1,6 @@
 /* Convert tree expression to rtl instructions, for GNU compiler.
    Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001 Free Software Foundation, Inc.
+   2000, 2001, 2002 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -6453,7 +6453,7 @@ expand_expr (exp, target, tmode, modifier)
 
     case LABELED_BLOCK_EXPR:
       if (LABELED_BLOCK_BODY (exp))
-	expand_expr_stmt (LABELED_BLOCK_BODY (exp));
+	expand_expr_stmt_value (LABELED_BLOCK_BODY (exp), 0);
       /* Should perhaps use expand_label, but this is simpler and safer.  */
       do_pending_stack_adjust ();
       emit_label (label_rtx (LABELED_BLOCK_LABEL (exp)));
@@ -6468,7 +6468,7 @@ expand_expr (exp, target, tmode, modifier)
     case LOOP_EXPR:
       push_temp_slots ();
       expand_start_loop (1);
-      expand_expr_stmt (TREE_OPERAND (exp, 0));
+      expand_expr_stmt_value (TREE_OPERAND (exp, 0), 0);
       expand_end_loop ();
       pop_temp_slots ();