From 4940cd6041eaa51d8a9bb245d7be26ac0b68187d Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@redhat.com>
Date: Wed, 15 Dec 1999 06:33:50 -0800
Subject: [PATCH] rtlanal.c (reg_overlap_mentioned_p): Handle CONCAT.

1999-12-15  David S. Miller  <davem@redhat.com>

	* rtlanal.c (reg_overlap_mentioned_p): Handle CONCAT.

From-SVN: r30956
---
 gcc/ChangeLog | 4 ++++
 gcc/rtlanal.c | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9790ec615f8..aaf947041fd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+1999-12-15  David S. Miller  <davem@redhat.com>
+
+	* rtlanal.c (reg_overlap_mentioned_p): Handle CONCAT.
+
 Wed Dec 15 15:05:30 MET 1999  Jan Hubicka  <hubicka@freesoft.cz>
 
 	* flow.c (calculate_loop_depth): Make global, remove prototype,
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 838ca9daa0c..63bff3d0a5f 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -964,6 +964,13 @@ reg_overlap_mentioned_p (x, in)
 	  return 1;
       return 0;
     }
+  else if (GET_CODE (x) == CONCAT)
+    {
+      if (reg_overlap_mentioned_p (XEXP (x, 0), in)
+	  || reg_overlap_mentioned_p (XEXP (x, 1), in))
+	return 1;
+      return 0;
+    }
   else
     abort ();