From bc8a0e39b7504b4aa23203353bb77136d487c101 Mon Sep 17 00:00:00 2001
From: Jim Wilson <wilson@gcc.gnu.org>
Date: Mon, 24 Jan 1994 16:33:14 -0800
Subject: [PATCH] (store_split_bit_field): Reject gen_lowpart_common output if
 it returns the input value.

From-SVN: r6430
---
 gcc/expmed.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/expmed.c b/gcc/expmed.c
index f20fb186875..76c8a87c0cf 100644
--- a/gcc/expmed.c
+++ b/gcc/expmed.c
@@ -691,7 +691,7 @@ store_split_bit_field (op0, bitsize, bitpos, value, align)
     {
       rtx word = gen_lowpart_common (word_mode, value);
 
-      if (word)
+      if (word && (value != word))
 	value = word;
       else
 	value = gen_lowpart_common (word_mode,
-- 
2.30.2