From: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Date: Thu, 4 Feb 2016 09:56:13 +0000 (+0000)
Subject: [cse][3/4] Don't overwrite original rtx when folding source of set
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=625d55afc196456f1d04819c07a3c59806a2401e;p=gcc.git

[cse][3/4] Don't overwrite original rtx when folding source of set

	PR target/65932
	PR target/67714
	* cse.c (cse_insn): Pass NULL to fold_rtx when initially
	folding the source of a SET.

From-SVN: r233133
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d5936b78d11..3e2f22af092 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2016-02-04  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+	PR target/65932
+	PR target/67714
+	* cse.c (cse_insn): Pass NULL to fold_rtx when initially
+	folding the source of a SET.
+
 2016-02-04  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	PR target/65932
diff --git a/gcc/cse.c b/gcc/cse.c
index 58b8fc0313d..2665d9a2733 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -4636,7 +4636,7 @@ cse_insn (rtx_insn *insn)
 
       /* Simplify and foldable subexpressions in SRC.  Then get the fully-
 	 simplified result, which may not necessarily be valid.  */
-      src_folded = fold_rtx (src, insn);
+      src_folded = fold_rtx (src, NULL);
 
 #if 0
       /* ??? This caused bad code to be generated for the m68k port with -O2.