diff options
Diffstat (limited to 'gcc/tree-inline.c')
| -rw-r--r-- | gcc/tree-inline.c | 45 |
1 files changed, 32 insertions, 13 deletions
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c index 4fb28fe..eb95cc6 100644 --- a/gcc/tree-inline.c +++ b/gcc/tree-inline.c @@ -4089,19 +4089,37 @@ copy_decl_maybe_to_var (tree decl, copy_body_data *id) /* Return a copy of the function's argument tree. */ static tree -copy_arguments_for_versioning (tree orig_parm, copy_body_data * id) +copy_arguments_for_versioning (tree orig_parm, copy_body_data * id, + bitmap args_to_skip, tree *vars) { - tree *arg_copy, *parg; + tree arg, *parg; + tree new_parm = NULL; + int i = 0; - arg_copy = &orig_parm; - for (parg = arg_copy; *parg; parg = &TREE_CHAIN (*parg)) - { - tree new_tree = remap_decl (*parg, id); - lang_hooks.dup_lang_specific_decl (new_tree); - TREE_CHAIN (new_tree) = TREE_CHAIN (*parg); - *parg = new_tree; - } - return orig_parm; + parg = &new_parm; + + for (arg = orig_parm; arg; arg = TREE_CHAIN (arg), i++) + if (!args_to_skip || !bitmap_bit_p (args_to_skip, i)) + { + tree new_tree = remap_decl (arg, id); + lang_hooks.dup_lang_specific_decl (new_tree); + *parg = new_tree; + parg = &TREE_CHAIN (new_tree); + } + else + { + /* Make an equivalent VAR_DECL. If the argument was used + as temporary variable later in function, the uses will be + replaced by local variable. */ + tree var = copy_decl_to_var (arg, id); + get_var_ann (var); + add_referenced_var (var); + insert_decl_map (id, arg, var); + /* Declare this new variable. */ + TREE_CHAIN (var) = *vars; + *vars = var; + } + return new_parm; } /* Return a copy of the function's static chain. */ @@ -4146,7 +4164,7 @@ tree_versionable_function_p (tree fndecl) of edges of clones of the function will be updated. */ void tree_function_versioning (tree old_decl, tree new_decl, varray_type tree_map, - bool update_clones) + bool update_clones, bitmap args_to_skip) { struct cgraph_node *old_version_node; struct cgraph_node *new_version_node; @@ -4214,7 +4232,8 @@ tree_function_versioning (tree old_decl, tree new_decl, varray_type tree_map, /* Copy the function's arguments. */ if (DECL_ARGUMENTS (old_decl) != NULL_TREE) DECL_ARGUMENTS (new_decl) = - copy_arguments_for_versioning (DECL_ARGUMENTS (old_decl), &id); + copy_arguments_for_versioning (DECL_ARGUMENTS (old_decl), &id, + args_to_skip, &vars); DECL_INITIAL (new_decl) = remap_blocks (DECL_INITIAL (id.src_fn), &id); |