2017-10-18 02:20:31 +00:00
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#!/usr/bin/env python
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"""Updates FileCheck checks in MIR tests.
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This script is a utility to update MIR based tests with new FileCheck
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patterns.
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The checks added by this script will cover the entire body of each
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function it handles. Virtual registers used are given names via
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FileCheck patterns, so if you do want to check a subset of the body it
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should be straightforward to trim out the irrelevant parts. None of
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the YAML metadata will be checked, other than function names.
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If there are multiple llc commands in a test, the full set of checks
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will be repeated for each different check pattern. Checks for patterns
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that are common between different commands will be left as-is by
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default, or removed if the --remove-common-prefixes flag is provided.
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"""
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from __future__ import print_function
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import argparse
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import collections
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import os
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import re
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import subprocess
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import sys
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2018-02-28 00:56:24 +00:00
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from UpdateTestChecks import common
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2017-10-18 02:20:31 +00:00
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2017-12-18 23:31:55 +00:00
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MIR_FUNC_NAME_RE = re.compile(r' *name: *(?P<func>[A-Za-z0-9_.-]+)')
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MIR_BODY_BEGIN_RE = re.compile(r' *body: *\|')
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MIR_BASIC_BLOCK_RE = re.compile(r' *bb\.[0-9]+.*:$')
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2017-10-18 02:20:31 +00:00
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VREG_RE = re.compile(r'(%[0-9]+)(?::[a-z0-9_]+)?(?:\([<>a-z0-9 ]+\))?')
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VREG_DEF_RE = re.compile(
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r'^ *(?P<vregs>{0}(?:, {0})*) '
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r'= (?P<opcode>[A-Zt][A-Za-z0-9_]+)'.format(VREG_RE.pattern))
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2017-12-18 23:31:55 +00:00
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MIR_PREFIX_DATA_RE = re.compile(r'^ *(;|bb.[0-9].*: *$|[a-z]+:( |$)|$)')
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2017-12-19 00:49:04 +00:00
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IR_FUNC_NAME_RE = re.compile(
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2018-01-26 22:56:31 +00:00
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r'^\s*define\s+(?:internal\s+)?[^@]*@(?P<func>[A-Za-z0-9_.]+)\s*\(')
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2017-12-19 00:49:04 +00:00
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IR_PREFIX_DATA_RE = re.compile(r'^ *(;|$)')
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2017-10-18 02:20:31 +00:00
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MIR_FUNC_RE = re.compile(
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r'^---$'
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r'\n'
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2017-10-18 05:52:56 +00:00
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r'^ *name: *(?P<func>[A-Za-z0-9_.-]+)$'
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r'.*?'
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r'^ *body: *\|\n'
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r'(?P<body>.*?)\n'
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r'^\.\.\.$',
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flags=(re.M | re.S))
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2018-02-28 00:56:24 +00:00
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2017-10-18 02:20:31 +00:00
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class LLC:
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def __init__(self, bin):
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self.bin = bin
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def __call__(self, args, ir):
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if ir.endswith('.mir'):
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args = '{} -x mir'.format(args)
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with open(ir) as ir_file:
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stdout = subprocess.check_output('{} {}'.format(self.bin, args),
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shell=True, stdin=ir_file)
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# Fix line endings to unix CR style.
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stdout = stdout.replace('\r\n', '\n')
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return stdout
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class Run:
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def __init__(self, prefixes, cmd_args, triple):
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self.prefixes = prefixes
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self.cmd_args = cmd_args
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self.triple = triple
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def __getitem__(self, index):
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return [self.prefixes, self.cmd_args, self.triple][index]
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def log(msg, verbose=True):
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if verbose:
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print(msg, file=sys.stderr)
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def warn(msg, test_file=None):
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if test_file:
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msg = '{}: {}'.format(test_file, msg)
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print('WARNING: {}'.format(msg), file=sys.stderr)
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def find_triple_in_ir(lines, verbose=False):
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for l in lines:
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2018-02-28 00:56:24 +00:00
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m = common.TRIPLE_IR_RE.match(l)
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2017-10-18 02:20:31 +00:00
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if m:
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return m.group(1)
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return None
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def find_run_lines(test, lines, verbose=False):
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raw_lines = [m.group(1)
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2018-02-28 00:56:24 +00:00
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for m in [common.RUN_LINE_RE.match(l) for l in lines] if m]
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2017-10-18 02:20:31 +00:00
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run_lines = [raw_lines[0]] if len(raw_lines) > 0 else []
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for l in raw_lines[1:]:
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if run_lines[-1].endswith("\\"):
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run_lines[-1] = run_lines[-1].rstrip("\\") + " " + l
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else:
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run_lines.append(l)
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if verbose:
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log('Found {} RUN lines:'.format(len(run_lines)))
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for l in run_lines:
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log(' RUN: {}'.format(l))
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return run_lines
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def build_run_list(test, run_lines, verbose=False):
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run_list = []
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all_prefixes = []
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for l in run_lines:
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commands = [cmd.strip() for cmd in l.split('|', 1)]
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llc_cmd = commands[0]
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filecheck_cmd = commands[1] if len(commands) > 1 else ''
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if not llc_cmd.startswith('llc '):
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warn('Skipping non-llc RUN line: {}'.format(l), test_file=test)
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continue
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if not filecheck_cmd.startswith('FileCheck '):
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warn('Skipping non-FileChecked RUN line: {}'.format(l),
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test_file=test)
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continue
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triple = None
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m = common.TRIPLE_ARG_RE.search(llc_cmd)
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if m:
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triple = m.group(1)
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# If we find -march but not -mtriple, use that.
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m = common.MARCH_ARG_RE.search(llc_cmd)
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if m and not triple:
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triple = '{}--'.format(m.group(1))
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cmd_args = llc_cmd[len('llc'):].strip()
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cmd_args = cmd_args.replace('< %s', '').replace('%s', '').strip()
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2018-02-28 00:56:24 +00:00
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check_prefixes = [
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item
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for m in common.CHECK_PREFIX_RE.finditer(filecheck_cmd)
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for item in m.group(1).split(',')]
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2017-10-18 02:20:31 +00:00
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if not check_prefixes:
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check_prefixes = ['CHECK']
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all_prefixes += check_prefixes
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run_list.append(Run(check_prefixes, cmd_args, triple))
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# Remove any common prefixes. We'll just leave those entirely alone.
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common_prefixes = set([prefix for prefix in all_prefixes
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if all_prefixes.count(prefix) > 1])
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for run in run_list:
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run.prefixes = [p for p in run.prefixes if p not in common_prefixes]
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return run_list, common_prefixes
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def find_functions_with_one_bb(lines, verbose=False):
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result = []
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cur_func = None
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bbs = 0
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for line in lines:
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2017-12-18 23:31:55 +00:00
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m = MIR_FUNC_NAME_RE.match(line)
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if m:
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if bbs == 1:
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result.append(cur_func)
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cur_func = m.group('func')
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bbs = 0
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2017-12-18 23:31:55 +00:00
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m = MIR_BASIC_BLOCK_RE.match(line)
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2017-10-18 02:20:31 +00:00
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if m:
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bbs += 1
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if bbs == 1:
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result.append(cur_func)
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return result
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def build_function_body_dictionary(test, raw_tool_output, triple, prefixes,
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func_dict, verbose):
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for m in MIR_FUNC_RE.finditer(raw_tool_output):
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func = m.group('func')
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body = m.group('body')
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if verbose:
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log('Processing function: {}'.format(func))
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for l in body.splitlines():
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log(' {}'.format(l))
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for prefix in prefixes:
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if func in func_dict[prefix] and func_dict[prefix][func] != body:
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warn('Found conflicting asm for prefix: {}'.format(prefix),
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test_file=test)
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func_dict[prefix][func] = body
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def add_checks_for_function(test, output_lines, run_list, func_dict, func_name,
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2018-02-28 00:44:46 +00:00
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single_bb, verbose=False):
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2017-10-18 02:20:31 +00:00
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printed_prefixes = set()
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for run in run_list:
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for prefix in run.prefixes:
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if prefix in printed_prefixes:
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continue
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if not func_dict[prefix][func_name]:
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continue
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# if printed_prefixes:
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# # Add some space between different check prefixes.
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# output_lines.append('')
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printed_prefixes.add(prefix)
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log('Adding {} lines for {}'.format(prefix, func_name), verbose)
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add_check_lines(test, output_lines, prefix, func_name, single_bb,
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2018-02-28 00:44:46 +00:00
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func_dict[prefix][func_name].splitlines())
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break
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return output_lines
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def add_check_lines(test, output_lines, prefix, func_name, single_bb,
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func_body):
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if single_bb:
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# Don't bother checking the basic block label for a single BB
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func_body.pop(0)
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if not func_body:
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warn('Function has no instructions to check: {}'.format(func_name),
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test_file=test)
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return
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first_line = func_body[0]
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indent = len(first_line) - len(first_line.lstrip(' '))
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# A check comment, indented the appropriate amount
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check = '{:>{}}; {}'.format('', indent, prefix)
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output_lines.append('{}-LABEL: name: {}'.format(check, func_name))
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vreg_map = {}
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for func_line in func_body:
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if not func_line.strip():
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continue
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m = VREG_DEF_RE.match(func_line)
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if m:
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for vreg in VREG_RE.finditer(m.group('vregs')):
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name = mangle_vreg(m.group('opcode'), vreg_map.values())
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vreg_map[vreg.group(1)] = name
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func_line = func_line.replace(
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vreg.group(1), '[[{}:%[0-9]+]]'.format(name), 1)
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for number, name in vreg_map.items():
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2017-11-06 21:06:09 +00:00
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func_line = re.sub(r'{}\b'.format(number), '[[{}]]'.format(name),
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func_line)
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2017-10-18 02:20:31 +00:00
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check_line = '{}: {}'.format(check, func_line[indent:]).rstrip()
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output_lines.append(check_line)
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def mangle_vreg(opcode, current_names):
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base = opcode
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# Simplify some common prefixes and suffixes
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if opcode.startswith('G_'):
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base = base[len('G_'):]
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if opcode.endswith('_PSEUDO'):
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base = base[:len('_PSEUDO')]
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# Shorten some common opcodes with long-ish names
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base = dict(IMPLICIT_DEF='DEF',
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GLOBAL_VALUE='GV',
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CONSTANT='C',
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FCONSTANT='C',
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MERGE_VALUES='MV',
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UNMERGE_VALUES='UV',
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INTRINSIC='INT',
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INTRINSIC_W_SIDE_EFFECTS='INT',
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INSERT_VECTOR_ELT='IVEC',
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EXTRACT_VECTOR_ELT='EVEC',
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SHUFFLE_VECTOR='SHUF').get(base, base)
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2017-10-18 15:37:09 +00:00
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# Avoid ambiguity when opcodes end in numbers
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if len(base.rstrip('0123456789')) < len(base):
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base += '_'
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2017-10-18 02:20:31 +00:00
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i = 0
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for name in current_names:
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2017-10-18 15:37:09 +00:00
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if name.rstrip('0123456789') == base:
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2017-10-18 02:20:31 +00:00
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i += 1
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if i:
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return '{}{}'.format(base, i)
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return base
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def should_add_line_to_output(input_line, prefix_set):
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# Skip any check lines that we're handling.
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2018-02-28 00:56:24 +00:00
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m = common.CHECK_RE.match(input_line)
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2017-10-18 02:20:31 +00:00
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if m and m.group(1) in prefix_set:
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return False
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return True
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2018-02-28 00:44:46 +00:00
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def update_test_file(llc, test, remove_common_prefixes=False, verbose=False):
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2017-10-18 02:20:31 +00:00
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log('Scanning for RUN lines in test file: {}'.format(test), verbose)
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with open(test) as fd:
|
|
|
|
|
input_lines = [l.rstrip() for l in fd]
|
|
|
|
|
|
|
|
|
|
triple_in_ir = find_triple_in_ir(input_lines, verbose)
|
|
|
|
|
run_lines = find_run_lines(test, input_lines, verbose)
|
|
|
|
|
run_list, common_prefixes = build_run_list(test, run_lines, verbose)
|
|
|
|
|
|
|
|
|
|
simple_functions = find_functions_with_one_bb(input_lines, verbose)
|
|
|
|
|
|
|
|
|
|
func_dict = {}
|
|
|
|
|
for run in run_list:
|
|
|
|
|
for prefix in run.prefixes:
|
|
|
|
|
func_dict.update({prefix: dict()})
|
|
|
|
|
for prefixes, llc_args, triple_in_cmd in run_list:
|
|
|
|
|
log('Extracted LLC cmd: llc {}'.format(llc_args), verbose)
|
|
|
|
|
log('Extracted FileCheck prefixes: {}'.format(prefixes), verbose)
|
|
|
|
|
|
|
|
|
|
raw_tool_output = llc(llc_args, test)
|
|
|
|
|
if not triple_in_cmd and not triple_in_ir:
|
|
|
|
|
warn('No triple found: skipping file', test_file=test)
|
|
|
|
|
return
|
|
|
|
|
|
2017-10-18 05:39:22 +00:00
|
|
|
build_function_body_dictionary(test, raw_tool_output,
|
2017-10-18 02:20:31 +00:00
|
|
|
triple_in_cmd or triple_in_ir,
|
|
|
|
|
prefixes, func_dict, verbose)
|
|
|
|
|
|
|
|
|
|
state = 'toplevel'
|
|
|
|
|
func_name = None
|
|
|
|
|
prefix_set = set([prefix for run in run_list for prefix in run.prefixes])
|
|
|
|
|
log('Rewriting FileCheck prefixes: {}'.format(prefix_set), verbose)
|
|
|
|
|
|
|
|
|
|
if remove_common_prefixes:
|
|
|
|
|
prefix_set.update(common_prefixes)
|
|
|
|
|
elif common_prefixes:
|
|
|
|
|
warn('Ignoring common prefixes: {}'.format(common_prefixes),
|
|
|
|
|
test_file=test)
|
|
|
|
|
|
2017-12-19 00:49:04 +00:00
|
|
|
comment_char = '#' if test.endswith('.mir') else ';'
|
|
|
|
|
autogenerated_note = ('{} NOTE: Assertions have been autogenerated by '
|
|
|
|
|
'utils/{}'.format(comment_char,
|
|
|
|
|
os.path.basename(__file__)))
|
2017-10-18 02:20:31 +00:00
|
|
|
output_lines = []
|
|
|
|
|
output_lines.append(autogenerated_note)
|
|
|
|
|
|
|
|
|
|
for input_line in input_lines:
|
|
|
|
|
if input_line == autogenerated_note:
|
|
|
|
|
continue
|
|
|
|
|
|
|
|
|
|
if state == 'toplevel':
|
2017-12-19 00:49:04 +00:00
|
|
|
m = IR_FUNC_NAME_RE.match(input_line)
|
|
|
|
|
if m:
|
|
|
|
|
state = 'ir function prefix'
|
|
|
|
|
func_name = m.group('func')
|
2018-01-23 06:39:04 +00:00
|
|
|
if input_line.rstrip('| \r\n') == '---':
|
2017-10-18 02:20:31 +00:00
|
|
|
state = 'document'
|
|
|
|
|
output_lines.append(input_line)
|
|
|
|
|
elif state == 'document':
|
2017-12-18 23:31:55 +00:00
|
|
|
m = MIR_FUNC_NAME_RE.match(input_line)
|
2017-10-18 02:20:31 +00:00
|
|
|
if m:
|
2017-12-18 23:31:55 +00:00
|
|
|
state = 'mir function metadata'
|
2017-10-18 02:20:31 +00:00
|
|
|
func_name = m.group('func')
|
|
|
|
|
if input_line.strip() == '...':
|
|
|
|
|
state = 'toplevel'
|
|
|
|
|
func_name = None
|
|
|
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
|
|
|
output_lines.append(input_line)
|
2017-12-18 23:31:55 +00:00
|
|
|
elif state == 'mir function metadata':
|
2017-10-18 02:20:31 +00:00
|
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
|
|
|
output_lines.append(input_line)
|
2017-12-18 23:31:55 +00:00
|
|
|
m = MIR_BODY_BEGIN_RE.match(input_line)
|
2017-10-18 02:20:31 +00:00
|
|
|
if m:
|
|
|
|
|
if func_name in simple_functions:
|
|
|
|
|
# If there's only one block, put the checks inside it
|
2017-12-18 23:31:55 +00:00
|
|
|
state = 'mir function prefix'
|
2017-10-18 02:20:31 +00:00
|
|
|
continue
|
2017-12-18 23:31:55 +00:00
|
|
|
state = 'mir function body'
|
2017-10-18 02:20:31 +00:00
|
|
|
add_checks_for_function(test, output_lines, run_list,
|
2018-02-28 00:44:46 +00:00
|
|
|
func_dict, func_name, single_bb=False,
|
|
|
|
|
verbose=verbose)
|
2017-12-18 23:31:55 +00:00
|
|
|
elif state == 'mir function prefix':
|
|
|
|
|
m = MIR_PREFIX_DATA_RE.match(input_line)
|
2017-10-18 02:20:31 +00:00
|
|
|
if not m:
|
2017-12-18 23:31:55 +00:00
|
|
|
state = 'mir function body'
|
2017-10-18 02:20:31 +00:00
|
|
|
add_checks_for_function(test, output_lines, run_list,
|
2018-02-28 00:44:46 +00:00
|
|
|
func_dict, func_name, single_bb=True,
|
|
|
|
|
verbose=verbose)
|
2017-10-18 02:20:31 +00:00
|
|
|
|
|
|
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
|
|
|
output_lines.append(input_line)
|
2017-12-18 23:31:55 +00:00
|
|
|
elif state == 'mir function body':
|
2017-10-18 02:20:31 +00:00
|
|
|
if input_line.strip() == '...':
|
|
|
|
|
state = 'toplevel'
|
|
|
|
|
func_name = None
|
|
|
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
|
|
|
output_lines.append(input_line)
|
2017-12-19 00:49:04 +00:00
|
|
|
elif state == 'ir function prefix':
|
|
|
|
|
m = IR_PREFIX_DATA_RE.match(input_line)
|
|
|
|
|
if not m:
|
|
|
|
|
state = 'ir function body'
|
|
|
|
|
add_checks_for_function(test, output_lines, run_list,
|
2018-03-12 18:06:58 +00:00
|
|
|
func_dict, func_name, single_bb=False,
|
|
|
|
|
verbose=verbose)
|
2017-12-19 00:49:04 +00:00
|
|
|
|
|
|
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
|
|
|
output_lines.append(input_line)
|
|
|
|
|
elif state == 'ir function body':
|
|
|
|
|
if input_line.strip() == '}':
|
|
|
|
|
state = 'toplevel'
|
|
|
|
|
func_name = None
|
|
|
|
|
if should_add_line_to_output(input_line, prefix_set):
|
|
|
|
|
output_lines.append(input_line)
|
|
|
|
|
|
2017-10-18 02:20:31 +00:00
|
|
|
|
|
|
|
|
log('Writing {} lines to {}...'.format(len(output_lines), test), verbose)
|
|
|
|
|
|
|
|
|
|
with open(test, 'wb') as fd:
|
|
|
|
|
fd.writelines([l + '\n' for l in output_lines])
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def main():
|
|
|
|
|
parser = argparse.ArgumentParser(
|
|
|
|
|
description=__doc__, formatter_class=argparse.RawTextHelpFormatter)
|
|
|
|
|
parser.add_argument('-v', '--verbose', action='store_true',
|
|
|
|
|
help='Show verbose output')
|
|
|
|
|
parser.add_argument('--llc-binary', dest='llc', default='llc', type=LLC,
|
|
|
|
|
help='The "llc" binary to generate the test case with')
|
|
|
|
|
parser.add_argument('--remove-common-prefixes', action='store_true',
|
|
|
|
|
help='Remove existing check lines whose prefixes are '
|
|
|
|
|
'shared between multiple commands')
|
|
|
|
|
parser.add_argument('tests', nargs='+')
|
|
|
|
|
args = parser.parse_args()
|
|
|
|
|
|
|
|
|
|
for test in args.tests:
|
2017-10-18 22:36:08 +00:00
|
|
|
try:
|
|
|
|
|
update_test_file(args.llc, test, args.remove_common_prefixes,
|
2018-02-28 00:44:46 +00:00
|
|
|
verbose=args.verbose)
|
2017-10-18 22:36:08 +00:00
|
|
|
except Exception:
|
|
|
|
|
warn('Error processing file', test_file=test)
|
|
|
|
|
raise
|
2017-10-18 02:20:31 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
|
main()
|
