From fe5c443ea50fd90cba2352d5482d709fd2511d5b Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Tue, 2 Dec 2008 18:14:18 +0100
Subject: [PATCH] re PR middle-end/38343 (ice for legal code with -O2)
PR middle-end/38343
* builtins.c (fold_builtin_memory_op): Convert len to sizetype
before using it in POINTER_PLUS_EXPR.
* gcc.c-torture/compile/pr38343-2.c: New test.
From-SVN: r142363
---
gcc/ChangeLog | 6 ++++++
gcc/builtins.c | 1 +
gcc/testsuite/ChangeLog | 5 +++++
gcc/testsuite/gcc.c-torture/compile/pr38343-2.c | 12 ++++++++++++
4 files changed, 24 insertions(+)
create mode 100644 gcc/testsuite/gcc.c-torture/compile/pr38343-2.c
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 843b22168bdf..a0a839c4ab94 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-12-02 Jakub Jelinek <jakub@redhat.com>
+
+ PR middle-end/38343
+ * builtins.c (fold_builtin_memory_op): Convert len to sizetype
+ before using it in POINTER_PLUS_EXPR.
+
2008-12-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/38359
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 34066675873b..444baa606d1d 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -8993,6 +8993,7 @@ fold_builtin_memory_op (tree dest, tree src, tree len, tree type, bool ignore, i
len = fold_build2 (MINUS_EXPR, TREE_TYPE (len), len,
ssize_int (1));
+ len = fold_convert (sizetype, len);
dest = fold_build2 (POINTER_PLUS_EXPR, TREE_TYPE (dest), dest, len);
dest = fold_convert (type, dest);
if (expr)
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 33d0f8650d98..a08d83b5b33b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-12-02 Jakub Jelinek <jakub@redhat.com>
+
+ PR middle-end/38343
+ * gcc.c-torture/compile/pr38343-2.c: New test.
+
2008-12-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/38359
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr38343-2.c b/gcc/testsuite/gcc.c-torture/compile/pr38343-2.c
new file mode 100644
index 000000000000..8444cc78f06a
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr38343-2.c
@@ -0,0 +1,12 @@
+/* PR middle-end/38343 */
+
+static struct S
+{
+ char f[6];
+} s[] = { {"01000"} };
+
+char *
+foo (void)
+{
+ return __builtin_stpcpy (s[0].f, "S0022");
+}
--
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