FuncCallExprAST.py revision 11062
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 310972Sdavid.hashe@amd.com# Copyright (c) 2013 Advanced Micro Devices, Inc. 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.ExprAST import ExprAST 306657Snate@binkert.orgfrom slicc.symbols import Func, Type 316657Snate@binkert.org 326657Snate@binkert.orgclass FuncCallExprAST(ExprAST): 336657Snate@binkert.org def __init__(self, slicc, proc_name, exprs): 346657Snate@binkert.org super(FuncCallExprAST, self).__init__(slicc) 356657Snate@binkert.org self.proc_name = proc_name 366657Snate@binkert.org self.exprs = exprs 376657Snate@binkert.org 386657Snate@binkert.org def __repr__(self): 396657Snate@binkert.org return "[FuncCallExpr: %s %s]" % (self.proc_name, self.exprs) 406657Snate@binkert.org 416657Snate@binkert.org def generate(self, code): 426657Snate@binkert.org machine = self.state_machine 436657Snate@binkert.org 447780Snilay@cs.wisc.edu if self.proc_name == "DPRINTF": 457780Snilay@cs.wisc.edu # Code for inserting the location of the DPRINTF() 467780Snilay@cs.wisc.edu # statement in the .sm file in the statement it self. 477780Snilay@cs.wisc.edu # 'self.exprs[0].location' represents the location. 487780Snilay@cs.wisc.edu # 'format' represents the second argument of the 497780Snilay@cs.wisc.edu # original DPRINTF() call. It is left unmodified. 507780Snilay@cs.wisc.edu # str_list is used for concatenating the argument 517780Snilay@cs.wisc.edu # list following the format specifier. A DPRINTF() 527780Snilay@cs.wisc.edu # call may or may not contain any arguments following 537780Snilay@cs.wisc.edu # the format specifier. These two cases need to be 547780Snilay@cs.wisc.edu # handled differently. Hence the check whether or not 557780Snilay@cs.wisc.edu # the str_list is empty. 567780Snilay@cs.wisc.edu 5710972Sdavid.hashe@amd.com dflag = "%s" % (self.exprs[0].name) 5810972Sdavid.hashe@amd.com machine.addDebugFlag(dflag) 597780Snilay@cs.wisc.edu format = "%s" % (self.exprs[1].inline()) 607780Snilay@cs.wisc.edu format_length = len(format) 617780Snilay@cs.wisc.edu str_list = [] 627780Snilay@cs.wisc.edu 637780Snilay@cs.wisc.edu for i in range(2, len(self.exprs)): 647780Snilay@cs.wisc.edu str_list.append("%s" % self.exprs[i].inline()) 657780Snilay@cs.wisc.edu 667780Snilay@cs.wisc.edu if len(str_list) == 0: 6710972Sdavid.hashe@amd.com code('DPRINTF($0, "$1: $2")', 6810972Sdavid.hashe@amd.com dflag, self.exprs[0].location, format[2:format_length-2]) 697780Snilay@cs.wisc.edu else: 7010972Sdavid.hashe@amd.com code('DPRINTF($0, "$1: $2", $3)', 7110972Sdavid.hashe@amd.com dflag, 727780Snilay@cs.wisc.edu self.exprs[0].location, format[2:format_length-2], 737780Snilay@cs.wisc.edu ', '.join(str_list)) 746657Snate@binkert.org 756657Snate@binkert.org return self.symtab.find("void", Type) 766657Snate@binkert.org 776657Snate@binkert.org # hack for adding comments to profileTransition 786657Snate@binkert.org if self.proc_name == "APPEND_TRANSITION_COMMENT": 796657Snate@binkert.org # FIXME - check for number of parameters 806657Snate@binkert.org code("APPEND_TRANSITION_COMMENT($0)", self.exprs[0].inline()) 816657Snate@binkert.org return self.symtab.find("void", Type) 826657Snate@binkert.org 8310984SBrad.Beckmann@amd.com func_name_args = self.proc_name 8410984SBrad.Beckmann@amd.com 8510984SBrad.Beckmann@amd.com for expr in self.exprs: 8610984SBrad.Beckmann@amd.com actual_type,param_code = expr.inline(True) 8710984SBrad.Beckmann@amd.com func_name_args += "_" + str(actual_type.ident) 8810984SBrad.Beckmann@amd.com 896657Snate@binkert.org # Look up the function in the symbol table 9010984SBrad.Beckmann@amd.com func = self.symtab.find(func_name_args, Func) 916657Snate@binkert.org 926657Snate@binkert.org # Check the types and get the code for the parameters 936657Snate@binkert.org if func is None: 9410984SBrad.Beckmann@amd.com self.error("Unrecognized function name: '%s'", func_name_args) 956657Snate@binkert.org 9611062Snilay@cs.wisc.edu cvec, type_vec = func.checkArguments(self.exprs) 976657Snate@binkert.org 986657Snate@binkert.org # OK, the semantics of "trigger" here is that, ports in the 996657Snate@binkert.org # machine have different priorities. We always check the first 1006657Snate@binkert.org # port for doable transitions. If nothing/stalled, we pick one 1016657Snate@binkert.org # from the next port. 1026657Snate@binkert.org # 1036657Snate@binkert.org # One thing we have to be careful as the SLICC protocol 1046657Snate@binkert.org # writter is : If a port have two or more transitions can be 1056657Snate@binkert.org # picked from in one cycle, they must be independent. 1066657Snate@binkert.org # Otherwise, if transition A and B mean to be executed in 1076657Snate@binkert.org # sequential, and A get stalled, transition B can be issued 1086657Snate@binkert.org # erroneously. In practice, in most case, there is only one 1096657Snate@binkert.org # transition should be executed in one cycle for a given 1106657Snate@binkert.org # port. So as most of current protocols. 1116657Snate@binkert.org 1126657Snate@binkert.org if self.proc_name == "trigger": 1136657Snate@binkert.org code(''' 1146657Snate@binkert.org{ 1157839Snilay@cs.wisc.edu''') 1167839Snilay@cs.wisc.edu if machine.TBEType != None and machine.EntryType != None: 1177839Snilay@cs.wisc.edu code(''' 11810009Snilay@cs.wisc.edu TransitionResult result = doTransition(${{cvec[0]}}, ${{cvec[2]}}, ${{cvec[3]}}, ${{cvec[1]}}); 1197839Snilay@cs.wisc.edu''') 1207839Snilay@cs.wisc.edu elif machine.TBEType != None: 1217839Snilay@cs.wisc.edu code(''' 12210009Snilay@cs.wisc.edu TransitionResult result = doTransition(${{cvec[0]}}, ${{cvec[2]}}, ${{cvec[1]}}); 1237839Snilay@cs.wisc.edu''') 1247839Snilay@cs.wisc.edu elif machine.EntryType != None: 1257839Snilay@cs.wisc.edu code(''' 12610009Snilay@cs.wisc.edu TransitionResult result = doTransition(${{cvec[0]}}, ${{cvec[2]}}, ${{cvec[1]}}); 1277839Snilay@cs.wisc.edu''') 1287839Snilay@cs.wisc.edu else: 1297839Snilay@cs.wisc.edu code(''' 13010009Snilay@cs.wisc.edu TransitionResult result = doTransition(${{cvec[0]}}, ${{cvec[1]}}); 1317839Snilay@cs.wisc.edu''') 1326657Snate@binkert.org 1337839Snilay@cs.wisc.edu code(''' 1346657Snate@binkert.org if (result == TransitionResult_Valid) { 1356657Snate@binkert.org counter++; 1366657Snate@binkert.org continue; // Check the first port again 1376657Snate@binkert.org } 1386657Snate@binkert.org 13910981SBrad.Beckmann@amd.com if (result == TransitionResult_ResourceStall || 14010981SBrad.Beckmann@amd.com result == TransitionResult_ProtocolStall) { 1419499Snilay@cs.wisc.edu scheduleEvent(Cycles(1)); 1426657Snate@binkert.org 1436657Snate@binkert.org // Cannot do anything with this transition, go check next doable transition (mostly likely of next port) 1446657Snate@binkert.org } 1456657Snate@binkert.org} 1466657Snate@binkert.org''') 1476657Snate@binkert.org elif self.proc_name == "error": 1486657Snate@binkert.org code("$0", self.exprs[0].embedError(cvec[0])) 1496657Snate@binkert.org elif self.proc_name == "assert": 1506657Snate@binkert.org error = self.exprs[0].embedError('"assert failure"') 1516657Snate@binkert.org code(''' 1527793SBrad.Beckmann@amd.com#ifndef NDEBUG 1537793SBrad.Beckmann@amd.comif (!(${{cvec[0]}})) { 1546657Snate@binkert.org $error 1556657Snate@binkert.org} 1567793SBrad.Beckmann@amd.com#endif 1576657Snate@binkert.org''') 1586657Snate@binkert.org 1597839Snilay@cs.wisc.edu elif self.proc_name == "set_cache_entry": 1607839Snilay@cs.wisc.edu code("set_cache_entry(m_cache_entry_ptr, %s);" %(cvec[0])); 1617839Snilay@cs.wisc.edu elif self.proc_name == "unset_cache_entry": 1627839Snilay@cs.wisc.edu code("unset_cache_entry(m_cache_entry_ptr);"); 1637839Snilay@cs.wisc.edu elif self.proc_name == "set_tbe": 1647839Snilay@cs.wisc.edu code("set_tbe(m_tbe_ptr, %s);" %(cvec[0])); 1657839Snilay@cs.wisc.edu elif self.proc_name == "unset_tbe": 1667839Snilay@cs.wisc.edu code("unset_tbe(m_tbe_ptr);"); 16710981SBrad.Beckmann@amd.com elif self.proc_name == "stallPort": 16810981SBrad.Beckmann@amd.com code("scheduleEvent(Cycles(1));") 1697839Snilay@cs.wisc.edu 1706657Snate@binkert.org else: 1716657Snate@binkert.org # Normal function 1726657Snate@binkert.org if "external" not in func and not func.isInternalMachineFunc: 1739271Snilay@cs.wisc.edu self.error("Invalid function") 1746657Snate@binkert.org 1757839Snilay@cs.wisc.edu params = "" 1767839Snilay@cs.wisc.edu first_param = True 1777839Snilay@cs.wisc.edu 1787839Snilay@cs.wisc.edu for (param_code, type) in zip(cvec, type_vec): 1798192SLisa.Hsu@amd.com if first_param: 1808192SLisa.Hsu@amd.com params = str(param_code) 1818192SLisa.Hsu@amd.com first_param = False 1828192SLisa.Hsu@amd.com else: 1838192SLisa.Hsu@amd.com params += ', ' 1848192SLisa.Hsu@amd.com params += str(param_code); 1857839Snilay@cs.wisc.edu 1866657Snate@binkert.org fix = code.nofix() 18710984SBrad.Beckmann@amd.com code('(${{func.c_name}}($params))') 1886657Snate@binkert.org code.fix(fix) 1896657Snate@binkert.org 1906657Snate@binkert.org return func.return_type 191