1 files changed, 72 insertions, 3 deletions
diff --git a/gcc/tree-inline.h b/gcc/tree-inline.h
index 7c53239..d731752 100644
--- a/gcc/tree-inline.h
+++ b/gcc/tree-inline.h
@@ -23,8 +23,78 @@ Boston, MA 02110-1301, USA.  */
 #define GCC_TREE_INLINE_H
 
 #include "varray.h"
+#include "splay-tree.h"
+
+
+/* Data required for function body duplication.  */
+
+typedef struct copy_body_data
+{
+  /* FUNCTION_DECL for function being inlined, or in general the
+     source function providing the original trees.  */
+  tree src_fn;
+  /* FUNCTION_DECL for function being inlined into, or in general
+     the destination function receiving the new trees.  */
+  tree dst_fn;
+  /* Callgraph node of the source function.  */
+  struct cgraph_node *src_node;
+  /* Callgraph node of the destination function.  */
+  struct cgraph_node *dst_node;
+  /* struct function for function being inlined.  Usually this is the same
+     as DECL_STRUCT_FUNCTION (src_fn), but can be different if saved_cfg
+     and saved_eh are in use.  */
+  struct function *src_cfun;
+
+  /* The VAR_DECL for the return value.  */
+  tree retvar;
+  /* The map from local declarations in the inlined function to
+     equivalents in the function into which it is being inlined.  */
+  splay_tree decl_map;
+
+  /* Create a new decl to replace DECL in the destination function.  */
+  tree (*copy_decl) (tree, struct copy_body_data *);
+
+  /* Current BLOCK.  */
+  tree block;
+
+  /* Exception region the inlined call lie in.  */
+  int eh_region;
+  /* Take region number in the function being copied, add this value and
+     get eh region number of the duplicate in the function we inline into.  */
+  int eh_region_offset;
+
+  /* We use the same mechanism do all sorts of different things.  Rather
+     than enumerating the different cases, we categorize the behaviour
+     in the various situations.  */
+
+  /* Indicate the desired behaviour wrt call graph edges.  We can either
+     duplicate the edge (inlining, cloning), move the edge (versioning,
+     parallelization), or move the edges of the clones (saving).  */
+  enum copy_body_cge_which {
+    CB_CGE_DUPLICATE,
+    CB_CGE_MOVE,
+    CB_CGE_MOVE_CLONES
+  } transform_call_graph_edges;
+
+  /* True if a new CFG should be created.  False for inlining, true for
+     everything else.  */
+  bool transform_new_cfg;
+
+  /* True if RETURN_EXPRs should be transformed to just the contained
+     MODIFY_EXPR.  The branch semantics of the return will be handled
+     by manipulating the CFG rather than a statement.  */
+  bool transform_return_to_modify;
+
+  /* True if lang_hooks.decls.insert_block should be invoked when
+     duplicating BLOCK nodes.  */
+  bool transform_lang_insert_block;
+} copy_body_data;
+
 /* Function prototypes.  */
 
+extern tree copy_body_r (tree *, int *, void *);
+extern void insert_decl_map (copy_body_data *, tree, tree);
+
 void optimize_inline_calls (tree);
 bool tree_inlinable_function_p (tree);
 tree copy_tree_r (tree *, int *, void *);
@@ -37,9 +107,8 @@ int estimate_num_insns (tree expr);
 bool tree_versionable_function_p (tree);
 void tree_function_versioning (tree, tree, varray_type, bool);
 
-/* Copy a declaration when one function is substituted inline into
-   another.  It is used also for versioning.  */
-extern tree copy_decl_for_dup (tree, tree, tree, bool);
+extern tree remap_decl (tree decl, copy_body_data *id);
+extern tree remap_type (tree type, copy_body_data *id);
 
 /* 0 if we should not perform inlining.
    1 if we should expand functions calls inline at the tree level.