From c53153e7a099d3212a60912cd407abc04fb2610a Mon Sep 17 00:00:00 2001
From: Jan Hubicka <jh@suse.cz>
Date: Mon, 16 Jan 2012 17:40:38 +0100
Subject: [PATCH] re PR c/12245 (Uses lots of memory when compiling large
initialized arrays)
PR c/12245
PR c++/14179
* convert.c (convert_to_integer): Use fold_convert for
converting an INTEGER_CST to integer type.
From-SVN: r183214
---
gcc/ChangeLog | 7 +++++++
gcc/convert.c | 4 ++++
2 files changed, 11 insertions(+)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dd13d0bbc72a..9efdd70ddbf7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2012-01-16 Jan Hubicka <jh@suse.cz>
+
+ PR c/12245
+ PR c++/14179
+ * convert.c (convert_to_integer): Use fold_convert for
+ converting an INTEGER_CST to integer type.
+
2012-01-16 Jason Merrill <jason@redhat.com>
PR c++/14179
diff --git a/gcc/convert.c b/gcc/convert.c
index f04b20481946..dbe2c7eb32e9 100644
--- a/gcc/convert.c
+++ b/gcc/convert.c
@@ -860,6 +860,10 @@ convert_to_integer (tree type, tree expr)
break;
}
+ /* When parsing long initializers, we might end up with a lot of casts.
+ Shortcut this. */
+ if (TREE_CODE (expr) == INTEGER_CST)
+ return fold_convert (type, expr);
return build1 (CONVERT_EXPR, type, expr);
case REAL_TYPE:
--
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