From: Bin Cheng <bin.cheng@arm.com>
Date: Mon, 7 Mar 2016 16:39:27 +0000 (+0000)
Subject: re PR rtl-optimization/69052 (Performance regression after r229402.)
X-Git-Tag: basepoints/gcc-7~544
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b7b528a43b115446011dffec7dca81be302018c6;p=thirdparty%2Fgcc.git

re PR rtl-optimization/69052 (Performance regression after r229402.)


	PR rtl-optimization/69052
	* rtlanal.c (commutative_operand_precedence): Set higher precedence
	to CONST_WIDE_INT.

From-SVN: r234034
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 176ef4e16093..bab653018d5f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-03-07  Bin Cheng  <bin.cheng@arm.com>
+
+	PR rtl-optimization/69052
+	* rtlanal.c (commutative_operand_precedence): Set higher precedence
+	to CONST_WIDE_INT.
+
 2016-03-07  Tom de Vries  <tom@codesourcery.com>
 
 	PR tree-optimization/70116
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 642611fa91ab..bacc5f25f4af 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -3358,7 +3358,7 @@ commutative_operand_precedence (rtx op)
   if (code == CONST_INT)
     return -8;
   if (code == CONST_WIDE_INT)
-    return -8;
+    return -7;
   if (code == CONST_DOUBLE)
     return -7;
   if (code == CONST_FIXED)