From: jsm28 <jsm28@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 4 Jan 2007 16:36:57 +0000 (+0000)
Subject: 	* config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0d9f413edbafbfe7627665e9f8431e6fb3e58cf5;p=thirdparty%2Fgcc.git

	* config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
	MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
	rs6000_cost->fp not 0 as adjustment for outer NEG.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120442 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 602f2e7e328a..c6b21eb1b69f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2007-01-04  Joseph Myers  <joseph@codesourcery.com>
+
+	* config/rs6000/rs6000.c (rs6000_rtx_costs): Make adjustment for
+	MULT inside MINUS as either argument.  Use rs6000_cost->dmul -
+	rs6000_cost->fp not 0 as adjustment for outer NEG.
+
 2007-01-04  Jan Hubicka  <jh@suse.cz>
 
 	* cgraph.c (cgraph_release_function_body): New function.
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 15f263ab0166..7ef7551764f5 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -19738,11 +19738,12 @@ rs6000_rtx_costs (rtx x, int code, int outer_code, int *total)
     case MINUS:
       if (mode == DFmode)
 	{
-	  if (GET_CODE (XEXP (x, 0)) == MULT)
+	  if (GET_CODE (XEXP (x, 0)) == MULT
+	      || GET_CODE (XEXP (x, 1)) == MULT)
 	    {
 	      /* FNMA accounted in outer NEG.  */
 	      if (outer_code == NEG)
-		*total = 0;
+		*total = rs6000_cost->dmul - rs6000_cost->fp;
 	      else
 		*total = rs6000_cost->dmul;
 	    }