From 762c919f44677099fd2fe3e8c7e4d98ac1dca287 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Thu, 4 Jan 2007 16:36:57 +0000
Subject: [PATCH] rs6000.c (rs6000_rtx_costs): Make adjustment for MULT inside
MINUS as either argument.
* 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.
From-SVN: r120442
---
gcc/ChangeLog | 6 ++++++
gcc/config/rs6000/rs6000.c | 5 +++--
2 files changed, 9 insertions(+), 2 deletions(-)
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;
}
--
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