From: Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
Date: Mon, 8 Apr 2013 07:49:33 +0000 (+0000)
Subject: s390.c (s390_expand_insv): Only accept insertions within mode size.
X-Git-Tag: releases/gcc-4.9.0~6627
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=03ed99a89eff22949d9983cb70092127a7a0c190;p=thirdparty%2Fgcc.git

s390.c (s390_expand_insv): Only accept insertions within mode size.

2013-04-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/s390.c (s390_expand_insv): Only accept insertions
	within mode size.

From-SVN: r197566
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d3f40dd1da37..bb7076c0dd3f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-04-08  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
+
+	* config/s390/s390.c (s390_expand_insv): Only accept insertions
+	within mode size.
+
 2013-04-08  Marek Polacek  <polacek@redhat.com>
 
 	PR rtl-optimization/48182
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c
index 663cc545b8cf..157836324575 100644
--- a/gcc/config/s390/s390.c
+++ b/gcc/config/s390/s390.c
@@ -4647,6 +4647,9 @@ s390_expand_insv (rtx dest, rtx op1, rtx op2, rtx src)
   int smode_bsize, mode_bsize;
   rtx op, clobber;
 
+  if (bitsize + bitpos > GET_MODE_SIZE (mode))
+    return false;
+
   /* Generate INSERT IMMEDIATE (IILL et al).  */
   /* (set (ze (reg)) (const_int)).  */
   if (TARGET_ZARCH