From: Jim Wilson <wilson@gcc.gnu.org>
Date: Tue, 25 Jan 1994 00:33:14 +0000 (-0800)
Subject: (store_split_bit_field): Reject gen_lowpart_common
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bc8a0e39b7504b4aa23203353bb77136d487c101;p=gcc.git

(store_split_bit_field): Reject gen_lowpart_common
output if it returns the input value.

From-SVN: r6430
---

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,