diff options
Diffstat (limited to 'gcc/pointer-query.h')
| -rw-r--r-- | gcc/pointer-query.h | 53 |
1 files changed, 32 insertions, 21 deletions
diff --git a/gcc/pointer-query.h b/gcc/pointer-query.h index 3c8172c..96c5001 100644 --- a/gcc/pointer-query.h +++ b/gcc/pointer-query.h @@ -60,18 +60,16 @@ class pointer_query; /* Describes a reference to an object used in an access. */ struct access_ref { - /* Set the bounds of the reference to at most as many bytes - as the first argument or unknown when null, and at least - one when the second argument is true unless the first one - is a constant zero. */ - access_ref (tree = NULL_TREE, bool = false); + /* Set the bounds of the reference. */ + access_ref (range_query *query = nullptr, tree = NULL_TREE, + gimple * = nullptr, bool = false); /* Return the PHI node REF refers to or null if it doesn't. */ gphi *phi () const; /* Return the object to which REF refers. */ - tree get_ref (vec<access_ref> *, access_ref * = NULL, int = 1, - ssa_name_limit_t * = NULL, pointer_query * = NULL) const; + tree get_ref (vec<access_ref> *, access_ref * = nullptr, int = 1, + ssa_name_limit_t * = nullptr, pointer_query * = nullptr) const; /* Return true if OFFRNG is the constant zero. */ bool offset_zero () const @@ -85,7 +83,7 @@ struct access_ref /* Return the maximum amount of space remaining and if non-null, set argument to the minimum. */ - offset_int size_remaining (offset_int * = NULL) const; + offset_int size_remaining (offset_int * = nullptr) const; /* Return true if the offset and object size are in range for SIZE. */ bool offset_in_range (const offset_int &) const; @@ -172,13 +170,13 @@ public: }; /* Construct an object with the given Ranger instance and cache. */ - explicit pointer_query (range_query * = NULL, cache_type * = NULL); + explicit pointer_query (range_query * = nullptr, cache_type * = nullptr); /* Retrieve the access_ref for a variable from cache if it's there. */ const access_ref* get_ref (tree, int = 1) const; /* Retrieve the access_ref for a variable from cache or compute it. */ - bool get_ref (tree, access_ref*, int = 1); + bool get_ref (tree, gimple *, access_ref*, int = 1); /* Add an access_ref for the SSA_NAME to the cache. */ void put_ref (tree, const access_ref&, int = 1); @@ -208,19 +206,23 @@ struct access_data { /* Set the access to at most MAXWRITE and MAXREAD bytes, and at least 1 when MINWRITE or MINREAD, respectively, is set. */ - access_data (gimple *stmt, access_mode mode, + access_data (range_query *query, gimple *stmt, access_mode mode, tree maxwrite = NULL_TREE, bool minwrite = false, tree maxread = NULL_TREE, bool minread = false) : stmt (stmt), call (), - dst (maxwrite, minwrite), src (maxread, minread), mode (mode) { } + dst (query, maxwrite, stmt, minwrite), + src (query, maxread, stmt, minread), + mode (mode) { } /* Set the access to at most MAXWRITE and MAXREAD bytes, and at least 1 when MINWRITE or MINREAD, respectively, is set. */ - access_data (tree expr, access_mode mode, + access_data (range_query *query, tree expr, access_mode mode, tree maxwrite = NULL_TREE, bool minwrite = false, tree maxread = NULL_TREE, bool minread = false) : stmt (), call (expr), - dst (maxwrite, minwrite), src (maxread, minread), mode (mode) { } + dst (query, maxwrite, nullptr, minwrite), + src (query, maxread, nullptr, minread), + mode (mode) { } /* Access statement. */ gimple *stmt; @@ -245,14 +247,23 @@ extern bool get_size_range (tree, tree[2], int = 0); extern bool get_size_range (range_query *, tree, gimple *, tree[2], int = 0); class range_query; -extern tree gimple_call_alloc_size (gimple *, wide_int[2] = NULL, - range_query * = NULL); -extern tree gimple_parm_array_size (tree, wide_int[2], bool * = NULL); +extern tree gimple_call_alloc_size (gimple *, wide_int[2] = nullptr, + range_query * = nullptr); + +/* Compute the size of an object referenced by the first argument in + a statement given by second argument, using Object Size Type given + by third argument. Store result in an access_ref. */ +extern tree compute_objsize (tree, gimple *, int, access_ref *, + range_query * = nullptr); +extern tree compute_objsize (tree, gimple *, int, access_ref *, + pointer_query *); +inline tree compute_objsize (tree ptr, int ostype, access_ref *pref) +{ + return compute_objsize (ptr, nullptr, ostype, pref, (range_query *)nullptr); +} -extern tree compute_objsize (tree, int, access_ref *, range_query * = NULL); /* Legacy/transitional API. Should not be used in new code. */ -extern tree compute_objsize (tree, int, access_ref *, pointer_query *); -extern tree compute_objsize (tree, int, tree * = NULL, tree * = NULL, - range_query * = NULL); +extern tree compute_objsize (tree, int, tree * = nullptr, tree * = nullptr, + range_query * = nullptr); #endif // GCC_POINTER_QUERY_H |