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| author | Andrew Pinski <pinskia@physics.uc.edu> | 2005-03-04 06:24:09 +0000 |
|---|---|---|
| committer | Andrew Pinski <pinskia@gcc.gnu.org> | 2005-03-03 22:24:09 -0800 |
| commit | 935167332d4ee2b0bb173e40a6cf36db53b67d16 (patch) | |
| tree | f56735cae147ea5b7f7fd4e20aaa0eed733555a6 /gcc | |
| parent | 99ff9e7a1543a94af8e777e0aa4393fdb9cf4b3d (diff) | |
| download | gcc-935167332d4ee2b0bb173e40a6cf36db53b67d16.zip gcc-935167332d4ee2b0bb173e40a6cf36db53b67d16.tar.gz gcc-935167332d4ee2b0bb173e40a6cf36db53b67d16.tar.bz2 | |
revert: re PR tree-optimization/15784 (fold misses binary optimization)
2005-03-04 Andrew Pinski <pinskia@physics.uc.edu>
Revert for now:
2005-03-03 James A. Morrison <phython@gcc.gnu.org>
PR tree-optimization/15784
* fold-const.c (fold): Fold ~A + 1 to -1. Fold -A - 1
and -1 - A to ~A.
From-SVN: r95880
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/fold-const.c | 15 |
2 files changed, 8 insertions, 15 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ce68c0e..be6abe6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2005-03-04 Andrew Pinski <pinskia@physics.uc.edu> + + Revert for now: + 2005-03-03 James A. Morrison <phython@gcc.gnu.org> + PR tree-optimization/15784 + * fold-const.c (fold): Fold ~A + 1 to -1. Fold -A - 1 + and -1 - A to ~A. + 2005-03-04 Ben Elliston <bje@au.ibm.com> * gcc.c (option_map): Add --coverage. diff --git a/gcc/fold-const.c b/gcc/fold-const.c index c494d4f..517c45d 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -7454,11 +7454,6 @@ fold (tree expr) if (TREE_CODE (arg0) == NEGATE_EXPR && reorder_operands_p (TREE_OPERAND (arg0, 0), arg1)) return fold (build2 (MINUS_EXPR, type, arg1, TREE_OPERAND (arg0, 0))); - /* Convert ~A + 1 to -A. */ - if (INTEGRAL_TYPE_P (type) - && TREE_CODE (arg0) == BIT_NOT_EXPR - && integer_onep (arg1)) - return fold (build1 (NEGATE_EXPR, type, TREE_OPERAND (arg0, 0))); if (TREE_CODE (type) == COMPLEX_TYPE) { @@ -7897,16 +7892,6 @@ fold (tree expr) && reorder_operands_p (arg0, arg1)) return fold (build2 (MINUS_EXPR, type, negate_expr (arg1), TREE_OPERAND (arg0, 0))); - /* Convert -A - 1 to ~A. */ - if (INTEGRAL_TYPE_P (type) - && TREE_CODE (arg0) == NEGATE_EXPR - && integer_onep (arg1)) - return fold (build1 (BIT_NOT_EXPR, type, TREE_OPERAND (arg0, 0))); - - /* Convert -1 - A to ~A. */ - if (INTEGRAL_TYPE_P (type) - && integer_all_onesp (arg0)) - return fold (build1 (BIT_NOT_EXPR, type, arg1)); if (TREE_CODE (type) == COMPLEX_TYPE) { |