author Matthew Gaudet <mgaudet@mozilla.com>
Thu, 29 Mar 2018 09:09:58 -0400
changeset 483236 50d88eac66ca91857d88457c33540ba46c949730
parent 350123 578ebd592745ff2b7647b205576f20b5b36f3327
child 512260 2a22490b8a06c9a5eef192ef3192386f8e7ff74f
permissions -rw-r--r--
Bug 1438727: [Part 1] Implement a subset of JSOP_ADD in CacheIR r=jandem This patch adds both Ion and Baseline support for ADD when the arguments are doubles or int32. This is implmented as a strangler via the SharedIC, this falls back to the shared IC if there's no attachment in CacheIR. This should allow preservation of performance throughout. To provide clobber safety to the float registers, this patch uses fixed temporaries on LBinaryCache.

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import imp
import os
import shlex
import sys
    from StringIO import StringIO
except ImportError:
    from io import StringIO

old_bytecode = sys.dont_write_bytecode
sys.dont_write_bytecode = True

path = os.path.join(os.path.dirname(__file__), 'mach')

if not os.path.exists(path):
    path = os.path.join(os.path.dirname(__file__), 'config.status')
    config = imp.load_module('_buildconfig', open(path), path, ('', 'r', imp.PY_SOURCE))
    path = os.path.join(config.topsrcdir, 'mach')
mach_module = imp.load_module('_mach', open(path), path, ('', 'r', imp.PY_SOURCE))

sys.dont_write_bytecode = old_bytecode

def FlagsForFile(filename):
    mach = mach_module.get_mach()
    out = StringIO()

    # Mach calls sys.stdout.fileno(), so we need to fake it when capturing it.
    # Returning an invalid file descriptor does the trick.
    out.fileno = lambda: -1
    out.encoding = None
    mach.run(['compileflags', filename], stdout=out, stderr=out)

    flag_list = shlex.split(out.getvalue())

    # This flag is added by Fennec for android build and causes ycmd to fail to parse the file.
    # Removing this flag is a workaround until ycmd starts to handle this flag properly.
    # https://github.com/Valloric/YouCompleteMe/issues/1490
    final_flags = [x for x in flag_list if not x.startswith('-march=armv')]

    return {
        'flags': final_flags,
        'do_cache': True