Mercurial > hg > CbC > CbC_gcc

comparison gcc/simplify-rtx.c @ 47:3bfb6c00c1e0

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update it from 4.4.2 to 4.4.3.
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Sun, 07 Feb 2010 17:44:34 +0900
parents 855418dad1a3
children 77e2b8dfacca
comparison
equal deleted inserted replaced
46:b85a337e5837 47:3bfb6c00c1e0
1 /* RTL simplification functions for GNU compiler. 1 /* RTL simplification functions for GNU compiler.
2 Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2 Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc. 4 Free Software Foundation, Inc.
5 5
6 This file is part of GCC. 6 This file is part of GCC.
7 7
8 GCC is free software; you can redistribute it and/or modify it under 8 GCC is free software; you can redistribute it and/or modify it under
3861 if ((code == LTU || code == GEU) 3861 if ((code == LTU || code == GEU)
3862 && GET_CODE (op0) == PLUS 3862 && GET_CODE (op0) == PLUS
3863 && rtx_equal_p (op1, XEXP (op0, 1)) 3863 && rtx_equal_p (op1, XEXP (op0, 1))
3864 /* Don't recurse "infinitely" for (LTU/GEU (PLUS b b) b). */ 3864 /* Don't recurse "infinitely" for (LTU/GEU (PLUS b b) b). */
3865 && !rtx_equal_p (op1, XEXP (op0, 0))) 3865 && !rtx_equal_p (op1, XEXP (op0, 0)))
3866 return simplify_gen_relational (code, mode, cmp_mode, op0, XEXP (op0, 0)); 3866 return simplify_gen_relational (code, mode, cmp_mode, op0,
3867 copy_rtx (XEXP (op0, 0)));
3867 3868
3868 if (op1 == const0_rtx) 3869 if (op1 == const0_rtx)
3869 { 3870 {
3870 /* Canonicalize (GTU x 0) as (NE x 0). */ 3871 /* Canonicalize (GTU x 0) as (NE x 0). */
3871 if (code == GTU) 3872 if (code == GTU)