From: Mark Dettinger <dettinge@de.ibm.com>
Date: Mon, 17 Jan 2005 14:34:22 +0000 (+0000)
Subject: rtlanal.c (rtx_cost): Assign cost of 0 to a SUBREG when modes are tieable.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=edb8116590f8811fd2f83f5144cbe3a9d0b6b3e8;p=gcc.git

rtlanal.c (rtx_cost): Assign cost of 0 to a SUBREG when modes are tieable.

2005-01-17  Mark Dettinger  <dettinge@de.ibm.com>

	* rtlanal.c (rtx_cost): Assign cost of 0 to a SUBREG
	when modes are tieable.

From-SVN: r93763
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 47d6a63be07..06995dd0dee 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-01-17  Mark Dettinger  <dettinge@de.ibm.com>
+
+	* rtlanal.c (rtx_cost): Assign cost of 0 to a SUBREG
+	when modes are tieable.
+
 2005-01-17  Ranjit Mathew  <rmathew@hotmail.com>
 
 	* gthr-posix.h (__gthread_active_p): Use pthread_cancel instead
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index abfa7b2bccd..2cae7edace9 100644
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -3270,6 +3270,7 @@ rtx_cost (rtx x, enum rtx_code outer_code ATTRIBUTE_UNUSED)
       return 0;
 
     case SUBREG:
+      total = 0;
       /* If we can't tie these modes, make this expensive.  The larger
 	 the mode, the more expensive it is.  */
       if (! MODES_TIEABLE_P (GET_MODE (x), GET_MODE (SUBREG_REG (x))))