diff options
Diffstat (limited to 'gcc/tree-ssa-sccvn.h')
| -rw-r--r-- | gcc/tree-ssa-sccvn.h | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/gcc/tree-ssa-sccvn.h b/gcc/tree-ssa-sccvn.h index bc6ecc03c1e..644bc127f78 100644 --- a/gcc/tree-ssa-sccvn.h +++ b/gcc/tree-ssa-sccvn.h @@ -79,20 +79,19 @@ typedef const vn_reference_op_s *const_vn_reference_op_t; DEF_VEC_O(vn_reference_op_s); DEF_VEC_ALLOC_O(vn_reference_op_s, heap); -/* A reference operation in the hashtable is representation as a - collection of vuses, representing the memory state at the time of +/* A reference operation in the hashtable is representation as + the vuse, representing the memory state at the time of the operation, and a collection of operands that make up the addressing calculation. If two vn_reference_t's have the same set of operands, they access the same memory location. We also store - the resulting value number, and the hashcode. The vuses are - always stored in order sorted by ssa name version. */ + the resulting value number, and the hashcode. */ typedef struct vn_reference_s { /* Unique identifier that all expressions with the same value have. */ unsigned int value_id; hashval_t hashcode; - VEC (tree, gc) *vuses; + tree vuse; VEC (vn_reference_op_s, heap) *operands; tree result; } *vn_reference_t; @@ -176,12 +175,13 @@ vn_nary_op_t vn_nary_op_insert_pieces (unsigned int, enum tree_code, tree, tree, unsigned int); void copy_reference_ops_from_ref (tree, VEC(vn_reference_op_s, heap) **); void copy_reference_ops_from_call (gimple, VEC(vn_reference_op_s, heap) **); -tree vn_reference_lookup_pieces (VEC (tree, gc) *, +tree get_ref_from_reference_ops (VEC(vn_reference_op_s, heap) *ops); +tree vn_reference_lookup_pieces (tree, VEC (vn_reference_op_s, heap) *, vn_reference_t *, bool); -tree vn_reference_lookup (tree, VEC (tree, gc) *, bool, vn_reference_t *); -vn_reference_t vn_reference_insert (tree, tree, VEC (tree, gc) *); -vn_reference_t vn_reference_insert_pieces (VEC (tree, gc) *, +tree vn_reference_lookup (tree, tree, bool, vn_reference_t *); +vn_reference_t vn_reference_insert (tree, tree, tree); +vn_reference_t vn_reference_insert_pieces (tree, VEC (vn_reference_op_s, heap) *, tree, unsigned int); @@ -195,5 +195,4 @@ unsigned int get_next_value_id (void); unsigned int get_constant_value_id (tree); unsigned int get_or_alloc_constant_value_id (tree); bool value_id_constant_p (unsigned int); -VEC (tree, gc) *shared_vuses_from_stmt (gimple); #endif /* TREE_SSA_SCCVN_H */ |