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| author | Bin Cheng <bin.cheng@arm.com> | 2017-05-11 09:25:30 +0000 |
|---|---|---|
| committer | Bin Cheng <amker@gcc.gnu.org> | 2017-05-11 09:25:30 +0000 |
| commit | b7b5203d98d56d5015a13727dd807412bd1559a2 (patch) | |
| tree | 96f95cca74e8bee61c794b7412cb64037c9af7d1 | |
| parent | 7581ce9a1ad6df9c8998a3c74256837a1ff6f7cc (diff) | |
| download | gcc-b7b5203d98d56d5015a13727dd807412bd1559a2.zip gcc-b7b5203d98d56d5015a13727dd807412bd1559a2.tar.gz gcc-b7b5203d98d56d5015a13727dd807412bd1559a2.tar.bz2 | |
tree-affine.h (aff_combination_type): New interface.
* tree-affine.h (aff_combination_type): New interface.
(aff_combination_zero_p): Remove static.
(aff_combination_const_p): New interface.
(aff_combination_singleton_var_p): New interfaces.
From-SVN: r247883
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/tree-affine.h | 25 |
2 files changed, 31 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index be20be0..3bfd958 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2017-05-11 Bin Cheng <bin.cheng@arm.com> + + * tree-affine.h (aff_combination_type): New interface. + (aff_combination_zero_p): Remove static. + (aff_combination_const_p): New interface. + (aff_combination_singleton_var_p): New interfaces. + 2017-05-11 Richard Biener <rguenther@suse.de> * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children): diff --git a/gcc/tree-affine.h b/gcc/tree-affine.h index b8eb8cc..c775ad8 100644 --- a/gcc/tree-affine.h +++ b/gcc/tree-affine.h @@ -88,8 +88,15 @@ bool aff_comb_cannot_overlap_p (aff_tree *, const widest_int &, /* Debugging functions. */ void debug_aff (aff_tree *); +/* Return AFF's type. */ +inline tree +aff_combination_type (aff_tree *aff) +{ + return aff->type; +} + /* Return true if AFF is actually ZERO. */ -static inline bool +inline bool aff_combination_zero_p (aff_tree *aff) { if (!aff) @@ -101,4 +108,20 @@ aff_combination_zero_p (aff_tree *aff) return false; } +/* Return true if AFF is actually const. */ +inline bool +aff_combination_const_p (aff_tree *aff) +{ + return (aff == NULL || aff->n == 0); +} + +/* Return true iff AFF contains one (negated) singleton variable. Users need + to make sure AFF points to a valid combination. */ +inline bool +aff_combination_singleton_var_p (aff_tree *aff) +{ + return (aff->n == 1 + && aff->offset == 0 + && (aff->elts[0].coef == 1 || aff->elts[0].coef == -1)); +} #endif /* GCC_TREE_AFFINE_H */ |