EnqueueStatementAST.py revision 9508
16657Snate@binkert.org# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 26657Snate@binkert.org# Copyright (c) 2009 The Hewlett-Packard Development Company 36657Snate@binkert.org# All rights reserved. 46657Snate@binkert.org# 56657Snate@binkert.org# Redistribution and use in source and binary forms, with or without 66657Snate@binkert.org# modification, are permitted provided that the following conditions are 76657Snate@binkert.org# met: redistributions of source code must retain the above copyright 86657Snate@binkert.org# notice, this list of conditions and the following disclaimer; 96657Snate@binkert.org# redistributions in binary form must reproduce the above copyright 106657Snate@binkert.org# notice, this list of conditions and the following disclaimer in the 116657Snate@binkert.org# documentation and/or other materials provided with the distribution; 126657Snate@binkert.org# neither the name of the copyright holders nor the names of its 136657Snate@binkert.org# contributors may be used to endorse or promote products derived from 146657Snate@binkert.org# this software without specific prior written permission. 156657Snate@binkert.org# 166657Snate@binkert.org# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 176657Snate@binkert.org# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 186657Snate@binkert.org# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 196657Snate@binkert.org# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 206657Snate@binkert.org# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 216657Snate@binkert.org# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 226657Snate@binkert.org# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 236657Snate@binkert.org# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 246657Snate@binkert.org# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 256657Snate@binkert.org# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 266657Snate@binkert.org# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 276657Snate@binkert.org 286657Snate@binkert.orgfrom slicc.ast.StatementAST import StatementAST 296657Snate@binkert.orgfrom slicc.symbols import Var 306657Snate@binkert.org 316657Snate@binkert.orgclass EnqueueStatementAST(StatementAST): 326657Snate@binkert.org def __init__(self, slicc, queue_name, type_ast, pairs, statements): 336657Snate@binkert.org super(EnqueueStatementAST, self).__init__(slicc, pairs) 346657Snate@binkert.org 356657Snate@binkert.org self.queue_name = queue_name 366657Snate@binkert.org self.type_ast = type_ast 376657Snate@binkert.org self.statements = statements 386657Snate@binkert.org 396657Snate@binkert.org def __repr__(self): 406657Snate@binkert.org return "[EnqueueStatementAst: %s %s %s]" % \ 416657Snate@binkert.org (self.queue_name, self.type_ast.ident, self.statements) 426657Snate@binkert.org 436657Snate@binkert.org def generate(self, code, return_type): 446657Snate@binkert.org code("{") 456657Snate@binkert.org code.indent() 466657Snate@binkert.org self.symtab.pushFrame() 476657Snate@binkert.org 486657Snate@binkert.org msg_type = self.type_ast.type 496657Snate@binkert.org 506657Snate@binkert.org # Add new local var to symbol table 517453Snate@binkert.org v = Var(self.symtab, "out_msg", self.location, msg_type, "*out_msg", 526657Snate@binkert.org self.pairs) 536657Snate@binkert.org self.symtab.newSymbol(v) 546657Snate@binkert.org 556657Snate@binkert.org # Declare message 569499Snilay@cs.wisc.edu code("${{msg_type.ident}} *out_msg = "\ 579508Snilay@cs.wisc.edu "new ${{msg_type.ident}}(clockEdge());") 586657Snate@binkert.org 596657Snate@binkert.org # The other statements 606657Snate@binkert.org t = self.statements.generate(code, None) 616657Snate@binkert.org 626657Snate@binkert.org self.queue_name.assertType("OutPort") 636657Snate@binkert.org 646657Snate@binkert.org args = [ "out_msg" ] 656657Snate@binkert.org if "latency" in self: 666657Snate@binkert.org latency = self["latency"] 676657Snate@binkert.org try: 686657Snate@binkert.org # see if this is an integer 696657Snate@binkert.org latency = int(latency) 709499Snilay@cs.wisc.edu args.append("Cycles(%s)" % latency) 716657Snate@binkert.org except ValueError: 726657Snate@binkert.org # if not, it should be a member 736657Snate@binkert.org args.append("m_%s" % latency) 746657Snate@binkert.org 756657Snate@binkert.org args = ", ".join(args) 766657Snate@binkert.org code('(${{self.queue_name.var.code}}).enqueue($args);') 776657Snate@binkert.org 786657Snate@binkert.org 796657Snate@binkert.org # End scope 806657Snate@binkert.org self.symtab.popFrame() 816657Snate@binkert.org code.dedent() 826657Snate@binkert.org code("}") 836657Snate@binkert.org 846657Snate@binkert.org def findResources(self, resources): 856657Snate@binkert.org var = self.queue_name.var 866657Snate@binkert.org res_count = int(resources.get(var, 0)) 876657Snate@binkert.org resources[var] = str(res_count + 1) 88