compiler: inline functions with assignments and return statements

    
    Support inlining functions that contain only assignments and return
    statements, with expressions of either constants or parameters.
    Functions that contain other kinds of statements or expressions are
    not yet inlined.  With this change, about 100 functions in the
    standard library are inlinable.
    
    Reviewed-on: https://go-review.googlesource.com/c/150073

From-SVN: r266573

1 files changed, 14 insertions, 0 deletions

diff --git a/gcc/go/gofrontend/statements.h b/gcc/go/gofrontend/statements.h
index 3b5c68a..621d301 100644
--- a/gcc/go/gofrontend/statements.h
+++ b/gcc/go/gofrontend/statements.h
@@ -631,6 +631,13 @@ class Assignment_statement : public Statement
   void
   do_check_types(Gogo*);
 
+  int
+  do_inlining_cost()
+  { return 1; }
+
+  void
+  do_export_statement(Export_function_body*);
+
   Statement*
   do_flatten(Gogo*, Named_object*, Block*, Statement_inserter*);
 
@@ -792,6 +799,13 @@ class Return_statement : public Statement
   do_may_fall_through() const
   { return false; }
 
+  int
+  do_inlining_cost()
+  { return 1; }
+
+  void
+  do_export_statement(Export_function_body*);
+
   Bstatement*
   do_get_backend(Translate_context*);