diff options
Diffstat (limited to 'gcc/go/gofrontend/gogo.h')
| -rw-r--r-- | gcc/go/gofrontend/gogo.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gcc/go/gofrontend/gogo.h b/gcc/go/gofrontend/gogo.h index 45c38578102..a04999e7f36 100644 --- a/gcc/go/gofrontend/gogo.h +++ b/gcc/go/gofrontend/gogo.h @@ -50,6 +50,8 @@ class Bblock; class Bvariable; class Blabel; class Bfunction; +class Escape_context; +class Node; // This file declares the basic classes used to hold the internal // representation of Go which is built by the parser. @@ -345,6 +347,16 @@ class Gogo add_label_reference(const std::string&, Location, bool issue_goto_errors); + // An analysis set is a list of functions paired with a boolean that indicates + // whether the list of functions are recursive. + typedef std::pair<std::vector<Named_object*>, bool> Analysis_set; + + // Add a GROUP of possibly RECURSIVE functions to the Analysis_set for this + // package. + void + add_analysis_set(const std::vector<Named_object*>& group, bool recursive) + { this->analysis_sets_.push_back(std::make_pair(group, recursive)); } + // Return a snapshot of the current binding state. Bindings_snapshot* bindings_snapshot(Location); @@ -544,6 +556,28 @@ class Gogo void check_return_statements(); + // Analyze the program flow for escape information. + void + analyze_escape(); + + // Discover the groups of possibly recursive functions in this package. + void + discover_analysis_sets(); + + // Build a connectivity graph between the objects in each analyzed function. + void + assign_connectivity(Escape_context*, Named_object*); + + // Traverse the objects in the connecitivty graph from the sink, adjusting the + // escape levels of each object. + void + propagate_escape(Escape_context*, Node*); + + // Add notes about the escape level of a function's input and output + // parameters for exporting and importing top level functions. + void + tag_function(Escape_context*, Named_object*); + // Do all exports. void do_exports(); @@ -762,6 +796,9 @@ class Gogo bool specific_type_functions_are_written_; // Whether named types have been converted. bool named_types_are_converted_; + // A list containing groups of possibly mutually recursive functions to be + // considered during escape analysis. + std::vector<Analysis_set> analysis_sets_; }; // A block of statements. |