From: Bernd Schmidt <bernd.schmidt@codesourcery.com>
Date: Sat, 10 Apr 2010 12:28:25 +0000 (+0000)
Subject: ira-costs.c (record_reg_classes): Ignore alternatives that are not enabled.
X-Git-Tag: releases/gcc-4.6.0~7968
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=979740a0897ac0a74dcd1136447f7118de4f3839;p=thirdparty%2Fgcc.git

ira-costs.c (record_reg_classes): Ignore alternatives that are not enabled.

	* ira-costs.c (record_reg_classes): Ignore alternatives that are
	not enabled.

From-SVN: r158186
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 74c2c327cf87..d6353e85a38f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2010-04-10  Bernd Schmidt  <bernd.schmidt@codesourcery.com>
+
+	* ira-costs.c (record_reg_classes): Ignore alternatives that are
+	not enabled.
+	
 2010-04-09  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/43707
diff --git a/gcc/ira-costs.c b/gcc/ira-costs.c
index 9e11219ce010..76aadff0772d 100644
--- a/gcc/ira-costs.c
+++ b/gcc/ira-costs.c
@@ -224,6 +224,14 @@ record_reg_classes (int n_alts, int n_ops, rtx *ops,
       int alt_fail = 0;
       int alt_cost = 0, op_cost_add;
 
+      if (!recog_data.alternative_enabled_p[alt])
+	{
+	  for (i = 0; i < recog_data.n_operands; i++)
+	    constraints[i] = skip_alternative (constraints[i]);
+
+	  continue;
+	}
+
       for (i = 0; i < n_ops; i++)
 	{
 	  unsigned char c;