diff options
Diffstat (limited to 'gcc/cgraph.c')
| -rw-r--r-- | gcc/cgraph.c | 80 |
1 files changed, 78 insertions, 2 deletions
diff --git a/gcc/cgraph.c b/gcc/cgraph.c index 51ea93a0f33..fa6ec7de63b 100644 --- a/gcc/cgraph.c +++ b/gcc/cgraph.c @@ -428,8 +428,6 @@ cgraph_varpool_node (tree decl) if (!cgraph_varpool_hash) cgraph_varpool_hash = htab_create_ggc (10, cgraph_varpool_hash_node, eq_cgraph_varpool_node, NULL); - - slot = (struct cgraph_varpool_node **) htab_find_slot_with_hash (cgraph_varpool_hash, DECL_ASSEMBLER_NAME (decl), IDENTIFIER_HASH_VALUE (DECL_ASSEMBLER_NAME (decl)), @@ -444,6 +442,84 @@ cgraph_varpool_node (tree decl) return node; } +/* Set the DECL_ASSEMBLER_NAME and update cgraph hashtables. */ +void +change_decl_assembler_name (tree decl, tree name) +{ + struct cgraph_node *node = NULL; + struct cgraph_varpool_node *vnode = NULL; + void **slot; + + if (!DECL_ASSEMBLER_NAME_SET_P (decl)) + { + SET_DECL_ASSEMBLER_NAME (decl, name); + return; + } + if (name == DECL_ASSEMBLER_NAME (decl)) + return; + + if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))) + warning ("%D renamed after being referenced in assembly", decl); + + if (TREE_CODE (decl) == FUNCTION_DECL && cgraph_hash) + { + /* Take a look whether declaration is in the cgraph structure. */ + slot = + htab_find_slot_with_hash (cgraph_hash, DECL_ASSEMBLER_NAME (decl), + IDENTIFIER_HASH_VALUE (DECL_ASSEMBLER_NAME + (decl)), NO_INSERT); + if (slot) + node = *slot; + + /* It is, verify that we are the canonical node for this decl. */ + if (node && node->decl == decl) + { + node = *slot; + htab_clear_slot (cgraph_hash, slot); + } + else + node = NULL; + } + if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl) && cgraph_varpool_hash) + { + /* Take a look whether declaration is in the cgraph structure. */ + slot = + htab_find_slot_with_hash (cgraph_varpool_hash, DECL_ASSEMBLER_NAME (decl), + IDENTIFIER_HASH_VALUE (DECL_ASSEMBLER_NAME + (decl)), NO_INSERT); + if (slot) + vnode = *slot; + + /* It is, verify that we are the canonical vnode for this decl. */ + if (vnode && vnode->decl == decl) + { + vnode = *slot; + htab_clear_slot (cgraph_varpool_hash, slot); + } + else + vnode = NULL; + } + SET_DECL_ASSEMBLER_NAME (decl, name); + if (node) + { + slot = + htab_find_slot_with_hash (cgraph_hash, name, + IDENTIFIER_HASH_VALUE (name), INSERT); + if (*slot) + abort (); + *slot = node; + } + if (vnode) + { + slot = + htab_find_slot_with_hash (cgraph_varpool_hash, name, + IDENTIFIER_HASH_VALUE (name), INSERT); + if (*slot) + abort (); + *slot = vnode; + } +} + /* Try to find existing function for identifier ID. */ struct cgraph_varpool_node * cgraph_varpool_node_for_identifier (tree id) |