| /* brig-arg-block-handler.cc -- brig arg block start/end directive handling |
| Copyright (C) 2016-2020 Free Software Foundation, Inc. |
| Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com> |
| for General Processor Tech. |
| |
| 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/>. */ |
| |
| #include "brig-code-entry-handler.h" |
| #include "tree-iterator.h" |
| #include "system.h" |
| #include "errors.h" |
| |
| #include "tree-pretty-print.h" |
| #include "print-tree.h" |
| |
| size_t |
| brig_directive_arg_block_handler::operator () (const BrigBase *base) |
| { |
| if (base->kind == BRIG_KIND_DIRECTIVE_ARG_BLOCK_START) |
| { |
| /* Initiate a new code block for the call site. */ |
| tree stmt_list = alloc_stmt_list (); |
| tree bind_expr |
| = build3 (BIND_EXPR, void_type_node, NULL, stmt_list, NULL); |
| tree block = make_node (BLOCK); |
| BIND_EXPR_BLOCK (bind_expr) = block; |
| static int block_id = 0; |
| BLOCK_NUMBER (block) = block_id++; |
| TREE_USED (block) = 1; |
| tree m_parentblock = DECL_INITIAL (m_parent.m_cf->m_func_decl); |
| BLOCK_SUPERCONTEXT (block) = m_parentblock; |
| |
| chainon (BLOCK_SUBBLOCKS (m_parentblock), block); |
| |
| m_parent.m_cf->m_current_bind_expr = bind_expr; |
| m_parent.m_cf->m_generating_arg_block = true; |
| } |
| else if (base->kind == BRIG_KIND_DIRECTIVE_ARG_BLOCK_END) |
| { |
| /* Restore the used bind expression back to the function |
| scope. */ |
| tree new_bind_expr = m_parent.m_cf->m_current_bind_expr; |
| m_parent.m_cf->m_current_bind_expr |
| = DECL_SAVED_TREE (m_parent.m_cf->m_func_decl); |
| m_parent.m_cf->append_statement (new_bind_expr); |
| m_parent.m_cf->m_generating_arg_block = false; |
| } |
| else |
| gcc_unreachable (); |
| |
| return base->byteCount; |
| } |