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expmed.c (expand_divmod): Cast constant to unsigned HOST_WIDE_INT before negating.

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* expmed.c (expand_divmod) [TRUNC_MOD_EXPR, TRUNC_DIV_EXPR]: Cast
	constant to unsigned HOST_WIDE_INT before negating.

From-SVN: r120995
This commit is contained in:
Ian Lance Taylor 2007-01-20 02:04:31 +00:00 committed by Ian Lance Taylor
parent b2bcf5577a
commit e4c9f3c21d
2 changed files with 9 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2007-01-19 Ian Lance Taylor <iant@google.com>
* expmed.c (expand_divmod) [TRUNC_MOD_EXPR, TRUNC_DIV_EXPR]: Cast
constant to unsigned HOST_WIDE_INT before negating.
2007-01-19 Ian Lance Taylor <iant@google.com>
* tree-ssa-operands.h (struct vuse_vec_d): Change num_vuse field

6
gcc/expmed.c
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@ -1,7 +1,7 @@
/* Medium-level subroutines: convert bit-field store and extract
and shifts, multiplies and divides to rtl instructions.
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation, Inc.
This file is part of GCC.
@ -4174,7 +4174,9 @@ expand_divmod (int rem_flag, enum tree_code code, enum machine_mode mode,
int lgup, post_shift;
rtx mlr;
HOST_WIDE_INT d = INTVAL (op1);
unsigned HOST_WIDE_INT abs_d = d >= 0 ? d : -d;
unsigned HOST_WIDE_INT abs_d;
abs_d = d >= 0 ? d : - (unsigned HOST_WIDE_INT) d;
/* n rem d = n rem -d */
if (rem_flag && d < 0)