From 3b5708e7e67f0e50a7d67545d898ac69cdbb9846 Mon Sep 17 00:00:00 2001
From: Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
Date: Mon, 21 Jan 2002 22:19:55 +0000
Subject: [PATCH] combine.c (simplify_and_const_int): Properly sign-extend
 CONSTOP.

	2002-01-21  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* combine.c (simplify_and_const_int): Properly sign-extend CONSTOP.

From-SVN: r49057
---
 gcc/ChangeLog | 4 ++++
 gcc/combine.c | 1 +
 2 files changed, 5 insertions(+)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d65aaf811b1..33de54d7b39 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2002-01-21  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
+
+	* combine.c (simplify_and_const_int): Properly sign-extend CONSTOP.
+
 2002-01-21  John David Anglin  <dave@hiauly1.hia.nrc.ca>
 
 	* pa64-hpux.h (MD_EXEC_PREFIX): Set to "/usr/ccs/bin".
diff --git a/gcc/combine.c b/gcc/combine.c
index a5c29f04c3c..663fd1d6198 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -7830,6 +7830,7 @@ simplify_and_const_int (x, mode, varop, constop)
 
   else
     {
+      constop = trunc_int_for_mode (constop, mode);
       if (GET_CODE (XEXP (x, 1)) != CONST_INT
 	  || (unsigned HOST_WIDE_INT) INTVAL (XEXP (x, 1)) != constop)
 	SUBST (XEXP (x, 1), GEN_INT (constop));