diff options
Diffstat (limited to 'gcc/cgraph.h')
| -rw-r--r-- | gcc/cgraph.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc/cgraph.h b/gcc/cgraph.h index f276512df31..25c1f33eb57 100644 --- a/gcc/cgraph.h +++ b/gcc/cgraph.h @@ -280,6 +280,8 @@ struct GTY(()) cgraph_node { /* ?? We should be able to remove this. We have enough bits in cgraph to calculate it. */ unsigned tm_clone : 1; + /* True if this decl is a dispatcher for function versions. */ + unsigned dispatcher_function : 1; }; DEF_VEC_P(symtab_node); @@ -292,6 +294,47 @@ DEF_VEC_P(cgraph_node_ptr); DEF_VEC_ALLOC_P(cgraph_node_ptr,heap); DEF_VEC_ALLOC_P(cgraph_node_ptr,gc); +/* Function Multiversioning info. */ +struct GTY(()) cgraph_function_version_info { + /* The cgraph_node for which the function version info is stored. */ + struct cgraph_node *this_node; + /* Chains all the semantically identical function versions. The + first function in this chain is the version_info node of the + default function. */ + struct cgraph_function_version_info *prev; + /* If this version node corresponds to a dispatcher for function + versions, this points to the version info node of the default + function, the first node in the chain. */ + struct cgraph_function_version_info *next; + /* If this node corresponds to a function version, this points + to the dispatcher function decl, which is the function that must + be called to execute the right function version at run-time. + + If this cgraph node is a dispatcher (if dispatcher_function is + true, in the cgraph_node struct) for function versions, this + points to resolver function, which holds the function body of the + dispatcher. The dispatcher decl is an alias to the resolver + function decl. */ + tree dispatcher_resolver; +}; + +/* Get the cgraph_function_version_info node corresponding to node. */ +struct cgraph_function_version_info * + get_cgraph_node_version (struct cgraph_node *node); + +/* Insert a new cgraph_function_version_info node into cgraph_fnver_htab + corresponding to cgraph_node NODE. */ +struct cgraph_function_version_info * + insert_new_cgraph_node_version (struct cgraph_node *node); + +/* Record that DECL1 and DECL2 are semantically identical function + versions. */ +void record_function_versions (tree decl1, tree decl2); + +/* Remove the cgraph_function_version_info and cgraph_node for DECL. This + DECL is a duplicate declaration. */ +void delete_function_version (tree decl); + /* A cgraph node set is a collection of cgraph nodes. A cgraph node can appear in multiple sets. */ struct cgraph_node_set_def @@ -638,6 +681,9 @@ void init_cgraph (void); bool cgraph_process_new_functions (void); void cgraph_process_same_body_aliases (void); void fixup_same_cpp_alias_visibility (symtab_node node, symtab_node target, tree alias); +/* Initialize datastructures so DECL is a function in lowered gimple form. + IN_SSA is true if the gimple is in SSA. */ +basic_block init_lowered_empty_function (tree decl, bool in_ssa); /* In cgraphclones.c */ |