EnqueueStatementAST.py revision 11111
110967Sdavid.hashe@amd.com# Copyright (c) 2013 Advanced Micro Devices, Inc. 26657Snate@binkert.org# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 36657Snate@binkert.org# Copyright (c) 2009 The Hewlett-Packard Development Company 46657Snate@binkert.org# All rights reserved. 56657Snate@binkert.org# 66657Snate@binkert.org# Redistribution and use in source and binary forms, with or without 76657Snate@binkert.org# modification, are permitted provided that the following conditions are 86657Snate@binkert.org# met: redistributions of source code must retain the above copyright 96657Snate@binkert.org# notice, this list of conditions and the following disclaimer; 106657Snate@binkert.org# redistributions in binary form must reproduce the above copyright 116657Snate@binkert.org# notice, this list of conditions and the following disclaimer in the 126657Snate@binkert.org# documentation and/or other materials provided with the distribution; 136657Snate@binkert.org# neither the name of the copyright holders nor the names of its 146657Snate@binkert.org# contributors may be used to endorse or promote products derived from 156657Snate@binkert.org# this software without specific prior written permission. 166657Snate@binkert.org# 176657Snate@binkert.org# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 186657Snate@binkert.org# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 196657Snate@binkert.org# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 206657Snate@binkert.org# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 216657Snate@binkert.org# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 226657Snate@binkert.org# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 236657Snate@binkert.org# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 246657Snate@binkert.org# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 256657Snate@binkert.org# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 266657Snate@binkert.org# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 276657Snate@binkert.org# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 286657Snate@binkert.org 296657Snate@binkert.orgfrom slicc.ast.StatementAST import StatementAST 306657Snate@binkert.orgfrom slicc.symbols import Var 316657Snate@binkert.org 326657Snate@binkert.orgclass EnqueueStatementAST(StatementAST): 3310155Snilay@cs.wisc.edu def __init__(self, slicc, queue_name, type_ast, lexpr, statements): 3410155Snilay@cs.wisc.edu super(EnqueueStatementAST, self).__init__(slicc) 356657Snate@binkert.org 366657Snate@binkert.org self.queue_name = queue_name 376657Snate@binkert.org self.type_ast = type_ast 3810155Snilay@cs.wisc.edu self.latexpr = lexpr 396657Snate@binkert.org self.statements = statements 406657Snate@binkert.org 416657Snate@binkert.org def __repr__(self): 426657Snate@binkert.org return "[EnqueueStatementAst: %s %s %s]" % \ 436657Snate@binkert.org (self.queue_name, self.type_ast.ident, self.statements) 446657Snate@binkert.org 456657Snate@binkert.org def generate(self, code, return_type): 466657Snate@binkert.org code("{") 476657Snate@binkert.org code.indent() 486657Snate@binkert.org self.symtab.pushFrame() 496657Snate@binkert.org 506657Snate@binkert.org msg_type = self.type_ast.type 516657Snate@binkert.org 526657Snate@binkert.org # Add new local var to symbol table 537453Snate@binkert.org v = Var(self.symtab, "out_msg", self.location, msg_type, "*out_msg", 546657Snate@binkert.org self.pairs) 556657Snate@binkert.org self.symtab.newSymbol(v) 566657Snate@binkert.org 576657Snate@binkert.org # Declare message 5810967Sdavid.hashe@amd.com code("std::shared_ptr<${{msg_type.c_ident}}> out_msg = "\ 5910967Sdavid.hashe@amd.com "std::make_shared<${{msg_type.c_ident}}>(clockEdge());") 606657Snate@binkert.org 616657Snate@binkert.org # The other statements 626657Snate@binkert.org t = self.statements.generate(code, None) 636657Snate@binkert.org self.queue_name.assertType("OutPort") 646657Snate@binkert.org 6510155Snilay@cs.wisc.edu if self.latexpr != None: 6610155Snilay@cs.wisc.edu ret_type, rcode = self.latexpr.inline(True) 6710155Snilay@cs.wisc.edu code("(${{self.queue_name.var.code}}).enqueue(" \ 6811111Snilay@cs.wisc.edu "out_msg, clockEdge(), cyclesToTicks(Cycles($rcode)));") 6910155Snilay@cs.wisc.edu else: 7011111Snilay@cs.wisc.edu code("(${{self.queue_name.var.code}}).enqueue(out_msg, "\ 7111111Snilay@cs.wisc.edu "clockEdge(), cyclesToTicks(Cycles(1)));") 726657Snate@binkert.org 736657Snate@binkert.org # End scope 746657Snate@binkert.org self.symtab.popFrame() 756657Snate@binkert.org code.dedent() 766657Snate@binkert.org code("}") 776657Snate@binkert.org 786657Snate@binkert.org def findResources(self, resources): 796657Snate@binkert.org var = self.queue_name.var 806657Snate@binkert.org res_count = int(resources.get(var, 0)) 816657Snate@binkert.org resources[var] = str(res_count + 1) 82