From 33598a1b8e670a9e36b8be056c7f610cd26fe0be Mon Sep 17 00:00:00 2001
From: Bernd Schmidt <bernd.schmidt@analog.com>
Date: Wed, 17 May 2006 09:42:23 +0000
Subject: [PATCH] re PR middle-end/27620 (g++.dg/init/array15.C uses 4MB stack
space)
PR middle-end/27620
* expr.c (safe_from_p): Handle CONSTRUCTOR again.
From-SVN: r113850
---
gcc/ChangeLog | 5 +++++
gcc/expr.c | 13 +++++++++++++
2 files changed, 18 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 862e2bf72744..2f7034c9f004 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-05-17 Bernd Schmidt <bernd.schmidt@analog.com>
+
+ PR middle-end/27620
+ * expr.c (safe_from_p): Handle CONSTRUCTOR again.
+
2006-05-17 Jakub Jelinek <jakub@redhat.com>
PR middle-end/27415
diff --git a/gcc/expr.c b/gcc/expr.c
index f59cc426a175..f0a05e907c45 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -6075,6 +6075,19 @@ safe_from_p (rtx x, tree exp, int top_p)
return safe_from_p (x, exp, 0);
}
}
+ else if (TREE_CODE (exp) == CONSTRUCTOR)
+ {
+ constructor_elt *ce;
+ unsigned HOST_WIDE_INT idx;
+
+ for (idx = 0;
+ VEC_iterate (constructor_elt, CONSTRUCTOR_ELTS (exp), idx, ce);
+ idx++)
+ if ((ce->index != NULL_TREE && !safe_from_p (x, ce->index, 0))
+ || !safe_from_p (x, ce->value, 0))
+ return 0;
+ return 1;
+ }
else if (TREE_CODE (exp) == ERROR_MARK)
return 1; /* An already-visited SAVE_EXPR? */
else