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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2005-05-17 20:02:56 +0000 |
|---|---|---|
| committer | Zdenek Dvorak <dvorakz@suse.cz> | 2005-05-17 20:02:56 +0000 |
| commit | 0a9eee3baede3900a48d36554138f62006bf3c28 (patch) | |
| tree | e43ca90e30d0a349e9725b82bbd8fe83295a552e /gcc/tree-ssa-loop-ivopts.c | |
| parent | 000d18b881aa2c313bc17c189b41f8eb85f81e42 (diff) | |
* 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.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@99853 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 00e7849e7f8..af121c4489d 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -992,6 +992,7 @@ find_bivs (struct ivopts_data *data) continue; base = PHI_ARG_DEF_FROM_EDGE (phi, loop_preheader_edge (loop)); + base = expand_simple_operations (base); if (contains_abnormal_ssa_name_p (base) || contains_abnormal_ssa_name_p (step)) continue; @@ -1062,6 +1063,7 @@ find_givs_in_stmt_scev (struct ivopts_data *data, tree stmt, if (!simple_iv (loop, stmt, TREE_OPERAND (stmt, 1), base, step, true)) return false; + *base = expand_simple_operations (*base); if (contains_abnormal_ssa_name_p (*base) || contains_abnormal_ssa_name_p (*step)) @@ -2536,7 +2538,7 @@ var_at_stmt (struct loop *loop, struct iv_cand *cand, tree stmt) /* Return the most significant (sign) bit of T. Similar to tree_int_cst_msb, but the bit is determined from TYPE_PRECISION, not MODE_BITSIZE. */ -static int +int tree_int_cst_sign_bit (tree t) { unsigned bitno = TYPE_PRECISION (TREE_TYPE (t)) - 1; |