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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2005-05-17 22:02:56 +0200 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2005-05-17 20:02:56 +0000 |
| commit | d7bf3bcf99126e5d554a6121d79344a6f3c7bdf2 (patch) | |
| tree | e43ca90e30d0a349e9725b82bbd8fe83295a552e /gcc/tree-ssa-loop-niter.c | |
| parent | 98273e5afbb86bdbe6b2c8164ad674c14e51700d (diff) | |
| download | gcc-d7bf3bcf99126e5d554a6121d79344a6f3c7bdf2.zip gcc-d7bf3bcf99126e5d554a6121d79344a6f3c7bdf2.tar.gz gcc-d7bf3bcf99126e5d554a6121d79344a6f3c7bdf2.tar.bz2 | |
tree-ssa-loop-ivopts.c (find_bivs, [...]): Apply expand_simple_operations to bases of the ivs.
* tree-ssa-loop-ivopts.c (find_bivs, find_givs_in_stmt_scev): Apply
expand_simple_operations to bases of the ivs.
(tree_int_cst_sign_bit): Export.
* tree-flow.h (expand_simple_operations): Declare.
* tree-ssa-loop-niter.c (number_of_iterations_cond): Use
tree_int_cst_sign_bit.
(expand_simple_operations): Export.
* tree.h (tree_int_cst_sign_bit): Declare.
From-SVN: r99853
Diffstat (limited to 'gcc/tree-ssa-loop-niter.c')
| -rw-r--r-- | gcc/tree-ssa-loop-niter.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/tree-ssa-loop-niter.c b/gcc/tree-ssa-loop-niter.c index b3bde28..38f7b42 100644 --- a/gcc/tree-ssa-loop-niter.c +++ b/gcc/tree-ssa-loop-niter.c @@ -189,10 +189,10 @@ number_of_iterations_cond (tree type, tree base0, tree step0, /* Ignore loops of while (i-- < 10) type. */ if (code != NE_EXPR) { - if (step0 && !tree_expr_nonnegative_p (step0)) + if (step0 && tree_int_cst_sign_bit (step0)) return; - if (!zero_p (step1) && tree_expr_nonnegative_p (step1)) + if (!zero_p (step1) && !tree_int_cst_sign_bit (step1)) return; } @@ -366,7 +366,7 @@ number_of_iterations_cond (tree type, tree base0, tree step0, if (!zero_p (step1)) step0 = fold_unary_to_constant (NEGATE_EXPR, type, step1); step1 = NULL_TREE; - if (!tree_expr_nonnegative_p (fold_convert (signed_niter_type, step0))) + if (tree_int_cst_sign_bit (fold_convert (signed_niter_type, step0))) { step0 = fold_unary_to_constant (NEGATE_EXPR, type, step0); base1 = fold_build1 (NEGATE_EXPR, type, base1); @@ -627,7 +627,7 @@ simplify_replace_tree (tree expr, tree old, tree new) /* Expand definitions of ssa names in EXPR as long as they are simple enough, and return the new expression. */ -static tree +tree expand_simple_operations (tree expr) { unsigned i, n; |