1f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar#!/usr/bin/python 2f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 3f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar# This creates a CSV file from the output of the debug output of subtarget: 4f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar# llvm-tblgen --gen-subtarget --debug-only=subtarget-emitter 5f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar# With thanks to Dave Estes for mentioning the idea at 2014 LLVM Developers' Meeting 6f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 7f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainarimport os; 8f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainarimport sys; 9f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainarimport re; 10f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainarimport operator; 11f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 12f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainartable = {} 13f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainarmodels = set() 14f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainarfilt = None 15f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 16f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainardef add(instr, model, resource=None): 17f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar global table, models 18f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 19f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar entry = table.setdefault(instr, dict()) 20f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar entry[model] = resource 21f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar models.add(model) 22f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 23f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainardef filter_model(m): 24f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar global filt 25f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar if m and filt: 26f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar return filt.search(m) != None 27f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar else: 28f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar return True 29f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 30f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 31f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainardef display(): 32f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar global table, models 33f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 34f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar ordered_table = sorted(table.items(), key=operator.itemgetter(0)) 35f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar ordered_models = filter(filter_model, sorted(models)) 36f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 37f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar # print header 38f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar sys.stdout.write("instruction") 39f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar for model in ordered_models: 40f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar if not model: model = "default" 41f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar sys.stdout.write(", {}".format(model)) 42f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar sys.stdout.write(os.linesep) 43f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 44f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar for (instr, mapping) in ordered_table: 45f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar sys.stdout.write(instr) 46f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar for model in ordered_models: 47f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar if model in mapping: 48f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar sys.stdout.write(", {}".format(mapping[model])) 49f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar else: 50f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar sys.stdout.write(", ") 51f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar sys.stdout.write(os.linesep) 52f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 53f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 54f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainardef machineModelCover(path): 55f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar # The interesting bits 56f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar re_sched_default = re.compile("SchedRW machine model for ([^ ]*) (.*)\n"); 57f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar re_sched_no_default = re.compile("No machine model for ([^ ]*)\n"); 58f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar re_sched_spec = re.compile("InstRW on ([^ ]*) for ([^ ]*) (.*)\n"); 59f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar re_sched_no_spec = re.compile("No machine model for ([^ ]*) on processor (.*)\n"); 60f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 61f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar # scan the file 62f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar with open(path, 'r') as f: 63f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar for line in f.readlines(): 64f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar match = re_sched_default.match(line) 65f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar if match: add(match.group(1), None, match.group(2)) 66f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar match = re_sched_no_default.match(line) 67f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar if match: add(match.group(1), None) 68f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar match = re_sched_spec.match(line) 69f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar if match: add(match.group(2), match.group(1), match.group(3)) 70f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar match = re_sched_no_default.match(line) 71f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar if match: add(match.group(1), None) 72f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 73f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar display() 74f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar 75f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainarif len(sys.argv) > 2: 76f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga Nainar filt = re.compile(sys.argv[2], re.IGNORECASE) 77f3ef5332fa3f4d5ec72c178a2b19dac363a19383Pirama Arumuga NainarmachineModelCover(sys.argv[1]) 78