From: Nick Clifton <nickc@redhat.com>
Date: Wed, 6 Feb 2008 10:36:33 +0000 (+0000)
Subject: stormy16.md (eqbranchsi): Replace a match_dup inside the clobber with a match_operand... 
X-Git-Tag: releases/gcc-4.3.0~255
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ccd9cb254fb69a2bf428bfa487f682570e2f70f;p=thirdparty%2Fgcc.git

stormy16.md (eqbranchsi): Replace a match_dup inside the clobber with a match_operand and duplicated...

        * config/stormy16/stormy16.md (eqbranchsi): Replace a match_dup
        inside the clobber with a match_operand and duplicated operand
        number in the constraint.
        (ineqbranchsi): Delete redundant comment.

From-SVN: r132143
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 382d0da46a92..871e6ddd8584 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2008-02-06  Nick Clifton  <nickc@redhat.com>
+
+	* config/stormy16/stormy16.md (eqbranchsi): Replace a match_dup
+	inside the clobber with a match_operand and duplicated operand
+	number in the constraint.
+	(ineqbranchsi): Delete redundant comment.
+
 2008-02-06  Ralf Corsepius  <ralf.corsepius@rtems.org>
 
 	* config/arm/rtems-elf.h (TARGET_OS_CPP_BUILTINS): Add 
diff --git a/gcc/config/stormy16/stormy16.md b/gcc/config/stormy16/stormy16.md
index bd68243a7e8f..1872085718cb 100644
--- a/gcc/config/stormy16/stormy16.md
+++ b/gcc/config/stormy16/stormy16.md
@@ -1,5 +1,5 @@
 ;; XSTORMY16 Machine description template
-;; Copyright (C) 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2007
+;; Copyright (C) 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2007, 2008
 ;; Free Software Foundation, Inc.
 ;; Contributed by Red Hat, Inc.
 
@@ -880,11 +880,7 @@
 				       (const_int 0)])
 		      (label_ref (match_operand 0 "" ""))
 		      (pc)))
-;; Although I would greatly like the 'match_dup' in the following line
-;; to actually be a register constraint, there is (at the time of writing) no
-;; way for reload to insert an output reload on the edges out of a branch.
-;; If reload is fixed to use insert_insn_on_edge, this can be changed.
-   (clobber (match_dup 2))]
+   (clobber (match_operand:SI 3 "register_operand" "=2"))]
   ""
   "*
 {
@@ -902,10 +898,6 @@
 							 "ri")])
 		      (label_ref (match_operand 0 "" ""))
 		      (pc)))
-   ;; This clobber is problematic.  Too many gcc optimizations will change
-   ;; operand 2 without changing the clobber.  At the time of writing there
-   ;; is no way around this. :-(  For an example try compiling:
-   ;; gcc.c-torture/compile/20000403-1.c -O3 -fomit-frame-pointer -funroll-loops
    (clobber (match_operand:SI 5 "register_operand" "=2"))
    (clobber (match_operand:BI 4 "" "=&y"))]
   ""