Data Fields | |
| tree | label |
| gimple | stmt |
Detailed Description
@verbatim 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
following:
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 |
Referenced by lower_function_body(), and lower_gimple_return().
| gimple return_statements_t::stmt |
Referenced by lower_function_body(), and lower_gimple_return().
The documentation for this struct was generated from the following file:
