From: Josh Conner <jconner@apple.com>
Date: Thu, 31 Aug 2006 23:44:00 +0000 (+0000)
Subject: re PR middle-end/25505 (gcc uses way too much stack space for this code)
X-Git-Tag: releases/gcc-4.2.0~1570
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ebdd079afcd5af335659b9a2f0283e83133bc5df;p=thirdparty%2Fgcc.git

re PR middle-end/25505 (gcc uses way too much stack space for this code)

2006-08-31  Josh Conner  <jconner@apple.com>

	PR c++/25505
	* tree-gimple.c (is_gimple_mem_rhs): Recognize functions
	returning aggregates.

From-SVN: r116613
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 949adec73676..246de0c70cc3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2006-08-31  Josh Conner  <jconner@apple.com>
+
+	PR c++/25505
+	* tree-gimple.c (is_gimple_mem_rhs): Recognize functions
+	returning aggregates.
+
 2006-08-31  Zdenek Dvorak <dvorakz@suse.cz>
 
 	PR tree-optimization/28839
diff --git a/gcc/tree-gimple.c b/gcc/tree-gimple.c
index b85ddad45feb..740f6735f7b8 100644
--- a/gcc/tree-gimple.c
+++ b/gcc/tree-gimple.c
@@ -115,7 +115,9 @@ is_gimple_mem_rhs (tree t)
      to be stored in memory, since it's cheap and prevents erroneous
      tailcalls (PR 17526).  */
   if (is_gimple_reg_type (TREE_TYPE (t))
-      || TYPE_MODE (TREE_TYPE (t)) != BLKmode)
+      || (TYPE_MODE (TREE_TYPE (t)) != BLKmode
+	  && (TREE_CODE (t) != CALL_EXPR
+              || ! aggregate_value_p (t, t))))
     return is_gimple_val (t);
   else
     return is_gimple_formal_tmp_rhs (t);