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diff gcc/config/mips/mips.md @ 63:b7f97abdc517 gcc-4.6-20100522

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update gcc from gcc-4.5.0 to gcc-4.6
author ryoma <e075725@ie.u-ryukyu.ac.jp>
date Mon, 24 May 2010 12:47:05 +0900
parents 77e2b8dfacca
children f6334be47118
line wrap: on
line diff
--- a/gcc/config/mips/mips.md	Fri Feb 12 23:41:23 2010 +0900
+++ b/gcc/config/mips/mips.md	Mon May 24 12:47:05 2010 +0900
@@ -1,6 +1,6 @@
 ;;  Mips.md	     Machine Description for MIPS based processors
 ;;  Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-;;  1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+;;  1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
 ;;  Free Software Foundation, Inc.
 ;;  Contributed by   A. Lichnewsky, lich@inria.inria.fr
 ;;  Changes by       Michael Meissner, meissner@osf.org
@@ -2888,8 +2888,9 @@
   [(set_attr "type" "shift")
    (set_attr "mode" "<MODE>")])
 
-;; Logical shift by 32 or more results in proper SI values so
-;; truncation is removed by the middle end.
+;; Logical shift by more than 32 results in proper SI values so truncation is
+;; removed by the middle end.  Note that a logical shift by 32 is handled by
+;; the previous pattern.
 (define_insn "*<optab>_trunc<mode>_exts"
   [(set (match_operand:SUBDI 0 "register_operand" "=d")
         (truncate:SUBDI