From d9fcabcdd39332a57c8b3e6e55ce21ef4fbdc336 Mon Sep 17 00:00:00 2001 From: James Molloy <james.molloy@arm.com> Date: Mon, 12 Oct 2015 08:50:47 +0000 Subject: [PATCH] [MISched] Python script to check coverage of misched info This script prints a CSV of all misched models of a target when given the output of the debug output of subtarget using: llvm-tblgen --gen-subtarget --debug-only=subtarget-emitter ... With thanks to Dave Estes for mentioning the idea at the 2014 LLVM Developers' Meeting. Patch by Christof Douma! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250020 91177308-0d34-0410-b5e6-96231b3b80d8 --- utils/schedcover.py | 77 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 utils/schedcover.py diff --git a/utils/schedcover.py b/utils/schedcover.py new file mode 100644 index 00000000000..ad9b78b207f --- /dev/null +++ b/utils/schedcover.py @@ -0,0 +1,77 @@ +#!/usr/bin/python + +# This creates a CSV file from the output of the debug output of subtarget: +# llvm-tblgen --gen-subtarget --debug-only=subtarget-emitter +# With thanks to Dave Estes for mentioning the idea at 2014 LLVM Developers' Meeting + +import os; +import sys; +import re; +import operator; + +table = {} +models = set() +filt = None + +def add(instr, model, resource=None): + global table, models + + entry = table.setdefault(instr, dict()) + entry[model] = resource + models.add(model) + +def filter_model(m): + global filt + if m and filt: + return filt.search(m) != None + else: + return True + + +def display(): + global table, models + + ordered_table = sorted(table.items(), key=operator.itemgetter(0)) + ordered_models = filter(filter_model, sorted(models)) + + # print header + sys.stdout.write("instruction") + for model in ordered_models: + if not model: model = "default" + sys.stdout.write(", {}".format(model)) + sys.stdout.write(os.linesep) + + for (instr, mapping) in ordered_table: + sys.stdout.write(instr) + for model in ordered_models: + if model in mapping: + sys.stdout.write(", {}".format(mapping[model])) + else: + sys.stdout.write(", ") + sys.stdout.write(os.linesep) + + +def machineModelCover(path): + # The interesting bits + re_sched_default = re.compile("SchedRW machine model for ([^ ]*) (.*)\n"); + re_sched_no_default = re.compile("No machine model for ([^ ]*)\n"); + re_sched_spec = re.compile("InstRW on ([^ ]*) for ([^ ]*) (.*)\n"); + re_sched_no_spec = re.compile("No machine model for ([^ ]*) on processor (.*)\n"); + + # scan the file + with open(path, 'r') as f: + for line in f.readlines(): + match = re_sched_default.match(line) + if match: add(match.group(1), None, match.group(2)) + match = re_sched_no_default.match(line) + if match: add(match.group(1), None) + match = re_sched_spec.match(line) + if match: add(match.group(2), match.group(1), match.group(3)) + match = re_sched_no_default.match(line) + if match: add(match.group(1), None) + + display() + +if len(sys.argv) > 2: + filt = re.compile(sys.argv[2], re.IGNORECASE) +machineModelCover(sys.argv[1]) -- 2.34.1