diff options
| author | Ian Lance Taylor <iant@google.com> | 2007-01-20 02:04:31 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2007-01-20 02:04:31 +0000 |
| commit | e4c9f3c21dd0075a6b1f0deb1241b7cb4b9cf944 (patch) | |
| tree | 6671e8dda9ef65f73642aeb937c81c8691ab78a2 | |
| parent | b2bcf5577ae6c5bfd2b8f1dc78cba2b0c2607741 (diff) | |
| download | gcc-e4c9f3c21dd0075a6b1f0deb1241b7cb4b9cf944.zip gcc-e4c9f3c21dd0075a6b1f0deb1241b7cb4b9cf944.tar.gz gcc-e4c9f3c21dd0075a6b1f0deb1241b7cb4b9cf944.tar.bz2 | |
expmed.c (expand_divmod): Cast constant to unsigned HOST_WIDE_INT before negating.
* expmed.c (expand_divmod) [TRUNC_MOD_EXPR, TRUNC_DIV_EXPR]: Cast
constant to unsigned HOST_WIDE_INT before negating.
From-SVN: r120995
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/expmed.c | 6 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d5eb9ae..97483cc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 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 to unsigned. (VUSE_VECT_ELEMENT) [ENABLE_CHECKING]: Use unsigned comparison. diff --git a/gcc/expmed.c b/gcc/expmed.c index e12fdfb..58b6a63 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -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) |