From 5b37cd331e1c22d4934ce6b74bd5611df2ed3dd1 Mon Sep 17 00:00:00 2001
From: Richard Guenther <rguenther@suse.de>
Date: Tue, 3 Jul 2007 14:33:16 +0000
Subject: [PATCH] backport: re PR rtl-optimization/30113 (ICE in
 trunc_int_for_mode)

2007-07-03  Richard Guenther  <rguenther@suse.de>

        Backport from mainline:
        2006-12-11  Zdenek Dvorak <dvorakz@suse.cz>

        PR rtl-optimization/30113
        * loop-iv.c (implies_p): Require the mode of the operands to be
        scalar.

From-SVN: r126259
---
 gcc/ChangeLog | 9 +++++++++
 gcc/loop-iv.c | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 030bc77473a7..c12cc625a69b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2007-07-03  Richard Guenther  <rguenther@suse.de>
+
+	Backport from mainline:
+	2006-12-11  Zdenek Dvorak <dvorakz@suse.cz>
+
+	PR rtl-optimization/30113
+	* loop-iv.c (implies_p): Require the mode of the operands to be
+	scalar.
+
 2007-07-03  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
 
 	PR target/28307
diff --git a/gcc/loop-iv.c b/gcc/loop-iv.c
index e234fd93b799..fcf4a2525af5 100644
--- a/gcc/loop-iv.c
+++ b/gcc/loop-iv.c
@@ -1490,7 +1490,7 @@ implies_p (rtx a, rtx b)
 	    mode = VOIDmode;
 	}
 
-      if (mode != VOIDmode
+      if (SCALAR_INT_MODE_P (mode)
 	  && rtx_equal_p (op1, opb1)
 	  && simplify_gen_binary (MINUS, mode, opb0, op0) == const1_rtx)
 	return true;