GCC Middle and Back End API Reference
return_statements_t Struct Reference
Collaboration diagram for return_statements_t:

Data Fields

tree label
gimple stmt

Detailed Description


GIMPLE lowering pass. Converts High GIMPLE into Low GIMPLE.

Copyright (C) 2003-2013 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see http://www.gnu.org/licenses/.

   The differences between High GIMPLE and Low GIMPLE are the

   1- Lexical scopes are removed (i.e., GIMPLE_BIND disappears).

   2- GIMPLE_TRY and GIMPLE_CATCH are converted to abnormal control
      flow and exception regions are built as an on-the-side region
      hierarchy (See tree-eh.c:lower_eh_constructs).

   3- Multiple identical return statements are grouped into a single
      return and gotos to the unique return site.  
   Match a return statement with a label.  During lowering, we identify
   identical return statements and replace duplicates with a jump to
   the corresponding label.  

Field Documentation

tree return_statements_t::label
gimple return_statements_t::stmt

The documentation for this struct was generated from the following file: