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# ========================== begin_copyright_notice ============================
#
# Copyright (C) 2017-2021 Intel Corporation
#
# SPDX-License-Identifier: MIT
#
# =========================== end_copyright_notice =============================
import os
import sys
import errno
import re
from typing import List
class DeclHeader:
# line contains the entire string of the line the decl was found on
line: str
# declName is just the identifier name
declName: str
# fields contains a list of all the names of the fields in the structure
fields: List[str]
def __init__(self, line_p, declName_p, fields_p):
self.line = line_p
self.declName = declName_p
self.fields = fields_p
enumNames: List[DeclHeader] = []
structureNames: List[DeclHeader] = []
def parseCmdArgs():
if (len(sys.argv) != 3):
sys.exit("usage: autogen.py <path_to_MDFrameWork.h> <path_to_MDNodeFuncs.gen>")
# usage: autogen.py <path_to_MDFrameWork.h> <path_to_MDNodeFuncs.gen>
__MDFrameWorkFile__ = sys.argv[1]
__genFile__ = sys.argv[2]
if not os.path.isfile(__MDFrameWorkFile__):
sys.exit("Could not find the file " + __MDFrameWorkFile__)
__genDir__ = os.path.dirname(__genFile__)
# Try to create the path to MDNodeFuncs.gen if it doesn't already exist.
if not os.path.exists(__genDir__):
try:
os.makedirs(__genDir__)
except OSError as err:
# In case of a failure to create this directory, and the directory doesn't already exist.
if err.errno != errno.EEXIST:
sys.exit("Failed to create the directory " + __genDir__)
return __MDFrameWorkFile__ , __genFile__
def storeVars(line, declHeader):
vars = line.split()
for i in range(1, len(vars)):
res = vars[i].split(",")
for j in range(0, len(res)):
if(res[j] != '' and res[j]!= ';' and res[j].find("ModuleMetaData") == -1 and res[j].find("FunctionMetaData") == -1):
if(i != len(vars)-1):
declHeader.fields.append(res[j] + ';')
else:
if(j != len(res)-1):
declHeader.fields.append(res[j] + ";")
else:
declHeader.fields.append(res[j])
def extractVars(line, declHeader):
vars = line.split()
if any(ty in line for ty in ("std::vector", "std::map", "std::array", "MapVector")):
declHeader.fields.append(vars[len(vars)-1])
return
if line.find("=") != -1:
declHeader.fields.append(vars[vars.index("=")-1]+";")
elif(line.find(",")) == -1:
if len(vars) == 2:
declHeader.fields.append(vars[1])
else:
if(len(vars) == 3):
declHeader.fields.append(vars[len(vars)-1])
else:
storeVars(line, declHeader)
def extractEnumVal(line, declHeader):
vars = line.split()
if (len(vars) == 0) or (line.find("{") != -1):
return
val = vars[0]
if val[-1] == ',':
val = val[:-1]
declHeader.fields.append(val)
def parseFile(fileName, insideIGCNameSpace):
inputFile = None
try:
inputFile = open(fileName, 'r')
except:
sys.exit("Failed to open the file " + fileName)
# with statement automatically closes the file
with inputFile as file:
pcount = 0
for line in file:
line = line.split("//")[0]
if line.find("namespace IGC") != -1:
while line.find("{") == -1:
line = next(file, None)
insideIGCNameSpace = True
pcount += 1
#
if insideIGCNameSpace:
blockType = re.search("struct|enum", line)
if blockType:
words = line.split()
idx = 2 if 'class' in words else 1
foundDecl = DeclHeader(line, words[idx], [])
opcount = pcount
namesList = structureNames
extractFunc = extractVars
if blockType[0] == 'enum':
namesList = enumNames
extractFunc = extractEnumVal
while True:
line = next(file, None)
assert line, "EOF reached with unclosed enum or struct, check " + fileName + " formatting"
assert re.search("/\*", line) == None, "Multi-line comments are not supported yet"
line = line.split("//")[0]
pcount += line.count("{") - line.count("}")
if pcount <= opcount:
break
extractFunc(re.sub("{|}","", line), foundDecl)
assert pcount == opcount, "Unexpected struct/enum ending, check " + fileName + " formatting"
namesList.append(foundDecl)
elif line.lstrip().startswith("#include") == True:
words = line.split()
parent_dir = os.path.dirname(fileName)
include_file = words[1][1:-1] # cut off the "" or <> surrounding the file name
include_file_path = os.path.join(parent_dir, include_file)
parseFile(include_file_path, True)
elif line.find("}") != -1 and line.find("};") == -1:
insideIGCNameSpace = False
pcount -= 1
assert pcount == 0, "EOF reached, with unclosed IGC namespace, check " + fileName + " formatting"
def printStructCalls(structDecl, outputFile):
outputFile.write(" Metadata* v[] = \n")
outputFile.write(" { \n")
outputFile.write(" MDString::get(module->getContext(), name),\n")
for item in structDecl.fields:
item = item[:-1]
p = '"{}"'.format(item)
outputFile.write(" CreateNode(" + structDecl.declName + "Var" + "." + item + ", module, ")
outputFile.write(p)
outputFile.write("),\n")
outputFile.write(" };\n")
outputFile.write(" MDNode* node = MDNode::get(module->getContext(), v);\n")
outputFile.write(" return node;\n")
def printEnumCalls(enumDecl, outputFile):
outputFile.write(" StringRef enumName;\n")
outputFile.write(" switch("+ enumDecl.declName + "Var)\n")
outputFile.write(" {\n")
for item in enumDecl.fields:
outputFile.write(" case IGC::" + enumDecl.declName + "::" + item + ":\n" )
outputFile.write(" enumName = ")
outputFile.write("\"" + item + "\"")
outputFile.write(";\n")
outputFile.write(" break;\n" )
outputFile.write(" }\n")
outputFile.write(" Metadata* v[] = \n")
outputFile.write(" { \n")
outputFile.write(" MDString::get(module->getContext(), name),\n")
outputFile.write(" MDString::get(module->getContext(), enumName),\n")
outputFile.write(" };\n")
outputFile.write(" MDNode* node = MDNode::get(module->getContext(), v);\n")
outputFile.write(" return node;\n")
def printStructReadCalls(structDecl, outputFile):
for item in structDecl.fields:
item = item[:-1]
p = '"{}"'.format(item)
outputFile.write(" readNode(" + structDecl.declName + "Var" + "." + item + ", node , ")
outputFile.write(p)
outputFile.write(");\n")
def printEnumReadCalls(enumDecl, outputFile):
outputFile.write(" StringRef s = cast<MDString>(node->getOperand(1))->getString();\n")
outputFile.write(" std::string str = s.str();\n")
outputFile.write(" "+ enumDecl.declName + "Var = (IGC::" + enumDecl.declName + ")(0);\n")
for item in enumDecl.fields:
outputFile.write(" if((str.size() == sizeof(\""+ item + "\")-1) && (::memcmp(str.c_str(),")
outputFile.write("\"" + item + "\"")
outputFile.write(",str.size())==0))\n")
outputFile.write(" {\n")
outputFile.write(" "+ enumDecl.declName + "Var = IGC::" + enumDecl.declName + "::" + item + ";\n")
outputFile.write(" } else\n")
outputFile.write(" {\n")
outputFile.write(" "+ enumDecl.declName + "Var = (IGC::" + enumDecl.declName + ")(0);\n")
outputFile.write(" }\n")
def emitCodeBlock(names: List[DeclHeader], declType, fmtFn, printFn, outputFile):
for item in names:
outputFile.write(fmtFn(item.declName))
outputFile.write("{\n")
printFn(item, outputFile)
outputFile.write("}\n\n")
def emitEnumCreateNode(outputFile):
def fmtFn(item):
return f"MDNode* CreateNode(IGC::{item} {item}Var, Module* module, StringRef name)\n"
emitCodeBlock(enumNames, "enum", fmtFn, printEnumCalls, outputFile)
def emitStructCreateNode(outputFile):
def fmtFn(item):
return "MDNode* CreateNode(const IGC::" + item + "& " + item + "Var" +", Module* module, StringRef name)\n"
emitCodeBlock(structureNames, "struct", fmtFn, printStructCalls, outputFile)
def emitEnumReadNode(outputFile):
def fmtFn(item):
return "void readNode( IGC::" + item + " &" + item + "Var," + " MDNode* node)\n"
emitCodeBlock(enumNames, "enum", fmtFn, printEnumReadCalls, outputFile)
def emitStructReadNode(outputFile):
def fmtFn(item):
return "void readNode( IGC::" + item + " &" + item + "Var," + " MDNode* node)\n"
emitCodeBlock(structureNames, "struct", fmtFn, printStructReadCalls, outputFile)
def genCode(fileName):
outputFile = None
try:
outputFile = open(fileName, 'w')
except:
sys.exit("Failed to open the file " + fileName)
emitEnumCreateNode(outputFile)
emitStructCreateNode(outputFile)
emitEnumReadNode(outputFile)
emitStructReadNode(outputFile)
outputFile.close()
if __name__ == '__main__':
__MDFrameWorkFile__ , __genFile__ = parseCmdArgs()
parseFile(__MDFrameWorkFile__, False)
genCode(__genFile__)
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