Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

36 files changed, 1325 insertions, 0 deletions

diff --git a/js/src/devtools/automation/README b/js/src/devtools/automation/README
new file mode 100644
index 0000000000..70f56fd230
--- /dev/null
+++ b/js/src/devtools/automation/README
@@ -0,0 +1,39 @@
+autospider.py is intended both as the harness for running automation builds, as
+well as a way to easily reproduce automation builds on a developer workstation.
+Some brave souls also use it as the basis for doing their normal local builds.
+
+Basic usage:
+
+  ./js/src/devtools/automation/autospider.py plain
+
+The script may be run from any directory. This will configure and build the
+source, then run a series of tests. See the --help message for many different
+ways of suppressing various actions or changing the output.
+
+The different possible build+test configurations are controlled mostly by JSON
+files in a variants/ directory (eg there is a .../variants/plain file for the
+above command).
+
+In automation, the test jobs will run with a dynamically loaded library that
+catches crashes and generates minidumps, so that autospider.py can produce a
+readable stack trace at the end of the run. Currently this library is only
+available on linux64, and is built via the following procedure:
+
+    % git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
+    % export PATH=$PATH:$(pwd)/depot_tools
+    % mkdir breakpad
+    % cd breakpad
+    # python must be python2.7
+    % fetch breakpad
+    % cd src
+    % git fetch https://github.com/hotsphink/breakpad injector
+    % git checkout FETCH_HEAD
+    % cd ..
+    % mkdir obj
+    % cd obj
+    # Possibly set $PATH to include a recent gcc
+    % ../src/configure --enable-static
+    % mkdir ../root
+    % make install DESTDIR=$(pwd)/../root
+
+The shared library will now be in root/usr/local/lib64/libbreakpadinjector.so
diff --git a/js/src/devtools/automation/arm64-jittests-timeouts.txt b/js/src/devtools/automation/arm64-jittests-timeouts.txt
new file mode 100644
index 0000000000..2c23ca3535
--- /dev/null
+++ b/js/src/devtools/automation/arm64-jittests-timeouts.txt
@@ -0,0 +1,2 @@
+basic/bug1610192.js
+ion/pow-base-power-of-two.js
diff --git a/js/src/devtools/automation/arm64-jstests-slow.txt b/js/src/devtools/automation/arm64-jstests-slow.txt
new file mode 100644
index 0000000000..c4c09ac79b
--- /dev/null
+++ b/js/src/devtools/automation/arm64-jstests-slow.txt
@@ -0,0 +1,52 @@
+non262/object/15.2.3.6-dictionary-redefinition-01-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-02-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-03-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-04-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-05-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-06-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-07-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-08-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-09-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-10-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-11-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-12-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-13-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-14-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-15-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-16-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-17-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-18-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-19-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-20-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-21-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-22-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-23-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-24-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-25-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-26-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-27-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-30-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-31-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-32-of-32.js
+non262/object/15.2.3.6-middle-redefinition-1-of-8.js
+non262/object/15.2.3.6-middle-redefinition-2-of-8.js
+non262/object/15.2.3.6-middle-redefinition-3-of-8.js
+non262/object/15.2.3.6-middle-redefinition-4-of-8.js
+non262/object/15.2.3.6-middle-redefinition-5-of-8.js
+non262/object/15.2.3.6-middle-redefinition-6-of-8.js
+non262/object/15.2.3.6-middle-redefinition-7-of-8.js
+non262/object/15.2.3.6-middle-redefinition-8-of-8.js
+non262/object/15.2.3.6-redefinition-1-of-4.js
+non262/object/15.2.3.6-redefinition-2-of-4.js
+non262/object/15.2.3.6-redefinition-3-of-4.js
+non262/object/15.2.3.6-redefinition-4-of-4.js
+non262/extensions/clone-complex-object.js
+non262/reflect-parse/classes.js
+non262/reflect-parse/destructuring-variable-declarations.js
+test262/built-ins/RegExp/CharacterClassEscapes/character-class-non-whitespace-class-escape-flags-u.js
+test262/built-ins/RegExp/CharacterClassEscapes/character-class-non-digit-class-escape-flags-u.js
+test262/built-ins/RegExp/CharacterClassEscapes/character-class-non-word-class-escape-flags-u.js
+test262/built-ins/RegExp/property-escapes/generated/
+test262/built-ins/RegExp/property-escapes/generated/General_Category_-_Letter.js
+test262/built-ins/RegExp/property-escapes/generated/General_Category_-_Other.js
+test262/built-ins/RegExp/property-escapes/generated/General_Category_-_Unassigned.js
diff --git a/js/src/devtools/automation/autospider.py b/js/src/devtools/automation/autospider.py
new file mode 100755
index 0000000000..66e25e2078
--- /dev/null
+++ b/js/src/devtools/automation/autospider.py
@@ -0,0 +1,701 @@
+#!/usr/bin/env python3
+# 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 argparse
+import json
+import logging
+import multiprocessing
+import os
+import platform
+import shlex
+import shutil
+import subprocess
+import sys
+from collections import Counter, namedtuple
+from logging import info
+from os import environ as env
+from pathlib import Path
+from subprocess import Popen
+from threading import Timer
+
+Dirs = namedtuple("Dirs", ["scripts", "js_src", "source", "fetches"])
+
+
+def directories(pathmodule, cwd, fixup=lambda s: s):
+    scripts = pathmodule.join(fixup(cwd), fixup(pathmodule.dirname(__file__)))
+    js_src = pathmodule.abspath(pathmodule.join(scripts, "..", ".."))
+    source = pathmodule.abspath(pathmodule.join(js_src, "..", ".."))
+    mozbuild = pathmodule.abspath(
+        # os.path.expanduser does not work on Windows.
+        env.get("MOZBUILD_STATE_PATH")
+        or pathmodule.join(Path.home(), ".mozbuild")
+    )
+    fetches = pathmodule.abspath(env.get("MOZ_FETCHES_DIR", mozbuild))
+    return Dirs(scripts, js_src, source, fetches)
+
+
+def quote(s):
+    # shlex quotes for the purpose of passing to the native shell, which is cmd
+    # on Windows, and therefore will not replace backslashed paths with forward
+    # slashes. When such a path is passed to sh, the backslashes will be
+    # interpreted as escape sequences.
+    return shlex.quote(s).replace("\\", "/")
+
+
+# Some scripts will be called with sh, which cannot use backslashed
+# paths. So for direct subprocess.* invocation, use normal paths from
+# DIR, but when running under the shell, use POSIX style paths.
+DIR = directories(os.path, os.getcwd())
+
+AUTOMATION = env.get("AUTOMATION", False)
+
+parser = argparse.ArgumentParser(description="Run a spidermonkey shell build job")
+parser.add_argument(
+    "--verbose",
+    action="store_true",
+    default=AUTOMATION,
+    help="display additional logging info",
+)
+parser.add_argument(
+    "--dep", action="store_true", help="do not clobber the objdir before building"
+)
+parser.add_argument(
+    "--keep",
+    action="store_true",
+    help="do not delete the sanitizer output directory (for testing)",
+)
+parser.add_argument(
+    "--platform",
+    "-p",
+    type=str,
+    metavar="PLATFORM",
+    default="",
+    help='build platform, including a suffix ("-debug" or "") used '
+    'by buildbot to override the variant\'s "debug" setting. The platform can be '
+    "used to specify 32 vs 64 bits.",
+)
+parser.add_argument(
+    "--timeout",
+    "-t",
+    type=int,
+    metavar="TIMEOUT",
+    default=12600,
+    help="kill job after TIMEOUT seconds",
+)
+parser.add_argument(
+    "--objdir",
+    type=str,
+    metavar="DIR",
+    # The real default must be set later so that OBJDIR can be
+    # relative to the srcdir.
+    default=env.get("OBJDIR"),
+    help="object directory",
+)
+group = parser.add_mutually_exclusive_group()
+group.add_argument(
+    "--optimize",
+    action="store_true",
+    help="generate an optimized build. Overrides variant setting.",
+)
+group.add_argument(
+    "--no-optimize",
+    action="store_false",
+    dest="optimize",
+    help="generate a non-optimized build. Overrides variant setting.",
+)
+group.set_defaults(optimize=None)
+group = parser.add_mutually_exclusive_group()
+group.add_argument(
+    "--debug",
+    action="store_true",
+    help="generate a debug build. Overrides variant setting.",
+)
+group.add_argument(
+    "--no-debug",
+    action="store_false",
+    dest="debug",
+    help="generate a non-debug build. Overrides variant setting.",
+)
+group.set_defaults(debug=None)
+group = parser.add_mutually_exclusive_group()
+group.add_argument(
+    "--jemalloc",
+    action="store_true",
+    dest="jemalloc",
+    help="use mozilla's jemalloc instead of the default allocator",
+)
+group.add_argument(
+    "--no-jemalloc",
+    action="store_false",
+    dest="jemalloc",
+    help="use the default allocator instead of mozilla's jemalloc",
+)
+group.set_defaults(jemalloc=None)
+parser.add_argument(
+    "--run-tests",
+    "--tests",
+    type=str,
+    metavar="TESTSUITE",
+    default="",
+    help="comma-separated set of test suites to add to the variant's default set",
+)
+parser.add_argument(
+    "--skip-tests",
+    "--skip",
+    type=str,
+    metavar="TESTSUITE",
+    default="",
+    help="comma-separated set of test suites to remove from the variant's default "
+    "set",
+)
+parser.add_argument(
+    "--build-only",
+    "--build",
+    dest="skip_tests",
+    action="store_const",
+    const="all",
+    help="only do a build, do not run any tests",
+)
+parser.add_argument(
+    "--nobuild",
+    action="store_true",
+    help="Do not do a build. Rerun tests on existing build.",
+)
+parser.add_argument(
+    "variant", type=str, help="type of job requested, see variants/ subdir"
+)
+args = parser.parse_args()
+
+logging.basicConfig(level=logging.INFO, format="%(message)s")
+
+env["CPP_UNIT_TESTS_DIR_JS_SRC"] = DIR.js_src
+if AUTOMATION and platform.system() == "Windows":
+    # build/win{32,64}/mozconfig.vs-latest uses TOOLTOOL_DIR to set VSPATH.
+    env["TOOLTOOL_DIR"] = DIR.fetches
+
+OBJDIR = args.objdir or os.path.join(DIR.source, "obj-spider")
+OBJDIR = os.path.abspath(OBJDIR)
+OUTDIR = os.path.join(OBJDIR, "out")
+MAKE = env.get("MAKE", "make")
+PYTHON = sys.executable
+
+for d in DIR._fields:
+    info("DIR.{name} = {dir}".format(name=d, dir=getattr(DIR, d)))
+
+
+def ensure_dir_exists(
+    name, clobber=True, creation_marker_filename="CREATED-BY-AUTOSPIDER"
+):
+    if creation_marker_filename is None:
+        marker = None
+    else:
+        marker = os.path.join(name, creation_marker_filename)
+    if clobber:
+        if (
+            not AUTOMATION
+            and marker
+            and os.path.exists(name)
+            and not os.path.exists(marker)
+        ):
+            raise Exception(
+                "Refusing to delete objdir %s because it was not created by autospider"
+                % name
+            )
+        shutil.rmtree(name, ignore_errors=True)
+    try:
+        os.mkdir(name)
+        if marker:
+            open(marker, "a").close()
+    except OSError:
+        if clobber:
+            raise
+
+
+with open(os.path.join(DIR.scripts, "variants", args.variant)) as fh:
+    variant = json.load(fh)
+
+if args.variant == "nonunified":
+    # Rewrite js/src/**/moz.build to replace UNIFIED_SOURCES to SOURCES.
+    # Note that this modifies the current checkout.
+    for dirpath, dirnames, filenames in os.walk(DIR.js_src):
+        if "moz.build" in filenames:
+            in_place = ["-i"]
+            if platform.system() == "Darwin":
+                in_place.append("")
+            subprocess.check_call(
+                ["sed"]
+                + in_place
+                + ["s/UNIFIED_SOURCES/SOURCES/", os.path.join(dirpath, "moz.build")]
+            )
+
+CONFIGURE_ARGS = variant["configure-args"]
+
+compiler = variant.get("compiler")
+if compiler != "gcc" and "clang-plugin" not in CONFIGURE_ARGS:
+    CONFIGURE_ARGS += " --enable-clang-plugin"
+
+if compiler == "gcc":
+    if AUTOMATION:
+        fetches = env["MOZ_FETCHES_DIR"]
+        env["CC"] = os.path.join(fetches, "gcc", "bin", "gcc")
+        env["CXX"] = os.path.join(fetches, "gcc", "bin", "g++")
+    else:
+        env["CC"] = "gcc"
+        env["CXX"] = "g++"
+
+opt = args.optimize
+if opt is None:
+    opt = variant.get("optimize")
+if opt is not None:
+    CONFIGURE_ARGS += " --enable-optimize" if opt else " --disable-optimize"
+
+opt = args.debug
+if opt is None:
+    opt = variant.get("debug")
+if opt is not None:
+    CONFIGURE_ARGS += " --enable-debug" if opt else " --disable-debug"
+
+opt = args.jemalloc
+if opt is not None:
+    CONFIGURE_ARGS += " --enable-jemalloc" if opt else " --disable-jemalloc"
+
+# By default, we build with NSPR, even if not specified. But we actively allow
+# builds to disable NSPR.
+opt = variant.get("nspr")
+if opt is None or opt:
+    CONFIGURE_ARGS += " --enable-nspr-build"
+
+# Some of the variants request a particular word size (eg ARM simulators).
+word_bits = variant.get("bits")
+
+# On Linux and Windows, we build 32- and 64-bit versions on a 64 bit
+# host, so the caller has to specify what is desired.
+if word_bits is None and args.platform:
+    platform_arch = args.platform.split("-")[0]
+    if platform_arch in ("win32", "linux"):
+        word_bits = 32
+    elif platform_arch in ("win64", "linux64"):
+        word_bits = 64
+
+# Fall back to the word size of the host.
+if word_bits is None:
+    word_bits = 64 if platform.architecture()[0] == "64bit" else 32
+
+# Need a platform name to use as a key in variant files.
+if args.platform:
+    variant_platform = args.platform.split("-")[0]
+elif platform.system() == "Windows":
+    variant_platform = "win64" if word_bits == 64 else "win32"
+elif platform.system() == "Linux":
+    variant_platform = "linux64" if word_bits == 64 else "linux"
+elif platform.system() == "Darwin":
+    variant_platform = "macosx64"
+else:
+    variant_platform = "other"
+
+env["LD_LIBRARY_PATH"] = ":".join(
+    d
+    for d in [
+        # for libnspr etc.
+        os.path.join(OBJDIR, "dist", "bin"),
+        # existing search path, if any
+        env.get("LD_LIBRARY_PATH"),
+    ]
+    if d is not None
+)
+
+os.environ["SOURCE"] = DIR.source
+if platform.system() == "Windows":
+    MAKE = env.get("MAKE", "mozmake")
+
+# Configure flags, based on word length and cross-compilation
+if word_bits == 32:
+    if platform.system() == "Windows":
+        CONFIGURE_ARGS += " --target=i686-pc-windows-msvc"
+    elif platform.system() == "Linux":
+        if not platform.machine().startswith("arm"):
+            CONFIGURE_ARGS += " --target=i686-pc-linux"
+
+    # Add SSE2 support for x86/x64 architectures.
+    if not platform.machine().startswith("arm"):
+        if platform.system() == "Windows":
+            sse_flags = "-arch:SSE2"
+        else:
+            sse_flags = "-msse -msse2 -mfpmath=sse"
+        env["CCFLAGS"] = "{0} {1}".format(env.get("CCFLAGS", ""), sse_flags)
+        env["CXXFLAGS"] = "{0} {1}".format(env.get("CXXFLAGS", ""), sse_flags)
+else:
+    if platform.system() == "Windows":
+        CONFIGURE_ARGS += " --target=x86_64-pc-windows-msvc"
+
+if platform.system() == "Linux" and AUTOMATION:
+    CONFIGURE_ARGS = "--enable-stdcxx-compat " + CONFIGURE_ARGS
+
+# Timeouts.
+ACTIVE_PROCESSES = set()
+
+
+def killall():
+    for proc in ACTIVE_PROCESSES:
+        proc.kill()
+    ACTIVE_PROCESSES.clear()
+
+
+timer = Timer(args.timeout, killall)
+timer.daemon = True
+timer.start()
+
+ensure_dir_exists(OBJDIR, clobber=not args.dep and not args.nobuild)
+ensure_dir_exists(OUTDIR, clobber=not args.keep)
+
+# Any jobs that wish to produce additional output can save them into the upload
+# directory if there is such a thing, falling back to OBJDIR.
+env.setdefault("MOZ_UPLOAD_DIR", OBJDIR)
+ensure_dir_exists(env["MOZ_UPLOAD_DIR"], clobber=False, creation_marker_filename=None)
+info("MOZ_UPLOAD_DIR = {}".format(env["MOZ_UPLOAD_DIR"]))
+
+
+def run_command(command, check=False, **kwargs):
+    kwargs.setdefault("cwd", OBJDIR)
+    info("in directory {}, running {}".format(kwargs["cwd"], command))
+    if platform.system() == "Windows":
+        # Windows will use cmd for the shell, which causes all sorts of
+        # problems. Use sh instead, quoting appropriately. (Use sh in all
+        # cases, not just when shell=True, because we want to be able to use
+        # paths that sh understands and cmd does not.)
+        if not isinstance(command, list):
+            if kwargs.get("shell"):
+                command = shlex.split(command)
+            else:
+                command = [command]
+
+        command = " ".join(quote(c) for c in command)
+        command = ["sh", "-c", command]
+        kwargs["shell"] = False
+    proc = Popen(command, **kwargs)
+    ACTIVE_PROCESSES.add(proc)
+    stdout, stderr = None, None
+    try:
+        stdout, stderr = proc.communicate()
+    finally:
+        ACTIVE_PROCESSES.discard(proc)
+    status = proc.wait()
+    if check and status != 0:
+        raise subprocess.CalledProcessError(status, command, output=stderr)
+    return stdout, stderr, status
+
+
+# Replacement strings in environment variables.
+REPLACEMENTS = {
+    "DIR": DIR.scripts,
+    "MOZ_FETCHES_DIR": DIR.fetches,
+    "MOZ_UPLOAD_DIR": env["MOZ_UPLOAD_DIR"],
+    "OUTDIR": OUTDIR,
+}
+
+# Add in environment variable settings for this variant. Normally used to
+# modify the flags passed to the shell or to set the GC zeal mode.
+for k, v in variant.get("env", {}).items():
+    env[k] = v.format(**REPLACEMENTS)
+
+if AUTOMATION:
+    # Currently only supported on linux64.
+    if platform.system() == "Linux" and word_bits == 64:
+        use_minidump = variant.get("use_minidump", True)
+    else:
+        use_minidump = False
+else:
+    use_minidump = False
+
+
+def resolve_path(dirs, *components):
+    if None in components:
+        return None
+    for dir in dirs:
+        path = os.path.join(dir, *components)
+        if os.path.exists(path):
+            return path
+
+
+if use_minidump:
+    env.setdefault("MINIDUMP_SAVE_PATH", env["MOZ_UPLOAD_DIR"])
+
+    injector_basename = {
+        "Linux": "libbreakpadinjector.so",
+        "Darwin": "breakpadinjector.dylib",
+    }.get(platform.system())
+
+    injector_lib = resolve_path((DIR.fetches,), "injector", injector_basename)
+    stackwalk = resolve_path((DIR.fetches,), "minidump-stackwalk", "minidump-stackwalk")
+    if stackwalk is not None:
+        env.setdefault("MINIDUMP_STACKWALK", stackwalk)
+    dump_syms = resolve_path((DIR.fetches,), "dump_syms", "dump_syms")
+    if dump_syms is not None:
+        env.setdefault("DUMP_SYMS", dump_syms)
+
+    if injector_lib is None:
+        use_minidump = False
+
+    info("use_minidump is {}".format(use_minidump))
+    info("  MINIDUMP_SAVE_PATH={}".format(env["MINIDUMP_SAVE_PATH"]))
+    info("  injector lib is {}".format(injector_lib))
+    info("  MINIDUMP_STACKWALK={}".format(env.get("MINIDUMP_STACKWALK")))
+
+
+mozconfig = os.path.join(DIR.source, "mozconfig.autospider")
+CONFIGURE_ARGS += " --prefix={OBJDIR}/dist".format(OBJDIR=quote(OBJDIR))
+
+# Generate a mozconfig.
+with open(mozconfig, "wt") as fh:
+    if AUTOMATION and platform.system() == "Windows":
+        fh.write('. "$topsrcdir/build/%s/mozconfig.vs-latest"\n' % variant_platform)
+    fh.write("ac_add_options --enable-project=js\n")
+    fh.write("ac_add_options " + CONFIGURE_ARGS + "\n")
+    fh.write("mk_add_options MOZ_OBJDIR=" + quote(OBJDIR) + "\n")
+
+env["MOZCONFIG"] = mozconfig
+
+mach = os.path.join(DIR.source, "mach")
+
+if not args.nobuild:
+    # Do the build
+    run_command([sys.executable, mach, "build"], check=True)
+
+    if use_minidump:
+        # Convert symbols to breakpad format.
+        cmd_env = env.copy()
+        cmd_env["MOZ_SOURCE_REPO"] = "file://" + DIR.source
+        cmd_env["RUSTC_COMMIT"] = "0"
+        cmd_env["MOZ_CRASHREPORTER"] = "1"
+        cmd_env["MOZ_AUTOMATION_BUILD_SYMBOLS"] = "1"
+        run_command(
+            [
+                sys.executable,
+                mach,
+                "build",
+                "recurse_syms",
+            ],
+            check=True,
+            env=cmd_env,
+        )
+
+COMMAND_PREFIX = []
+# On Linux, disable ASLR to make shell builds a bit more reproducible.
+# Bug 1795718 - Disable in automation for now as call to setarch requires extra
+# docker privileges.
+if not AUTOMATION and subprocess.call("type setarch >/dev/null 2>&1", shell=True) == 0:
+    COMMAND_PREFIX.extend(["setarch", platform.machine(), "-R"])
+
+
+def run_test_command(command, **kwargs):
+    _, _, status = run_command(COMMAND_PREFIX + command, check=False, **kwargs)
+    return status
+
+
+def run_jsapitests(args):
+    jsapi_test_binary = os.path.join(OBJDIR, "dist", "bin", "jsapi-tests")
+    test_env = env.copy()
+    test_env["TOPSRCDIR"] = DIR.source
+    if use_minidump and platform.system() == "Linux":
+        test_env["LD_PRELOAD"] = injector_lib
+    st = run_test_command([jsapi_test_binary] + args, env=test_env)
+    if st < 0:
+        print(
+            "PROCESS-CRASH | {} | application crashed".format(
+                " ".join(["jsapi-tests"] + args)
+            )
+        )
+        print("Return code: {}".format(st))
+    return st
+
+
+default_test_suites = frozenset(["jstests", "jittest", "jsapitests", "checks"])
+nondefault_test_suites = frozenset(["gdb"])
+all_test_suites = default_test_suites | nondefault_test_suites
+
+test_suites = set(default_test_suites)
+
+
+def normalize_tests(tests):
+    if "all" in tests:
+        return default_test_suites
+    return tests
+
+
+# Override environment variant settings conditionally.
+for k, v in variant.get("conditional-env", {}).get(variant_platform, {}).items():
+    env[k] = v.format(**REPLACEMENTS)
+
+# Skip any tests that are not run on this platform (or the 'all' platform).
+test_suites -= set(
+    normalize_tests(variant.get("skip-tests", {}).get(variant_platform, []))
+)
+test_suites -= set(normalize_tests(variant.get("skip-tests", {}).get("all", [])))
+
+# Add in additional tests for this platform (or the 'all' platform).
+test_suites |= set(
+    normalize_tests(variant.get("extra-tests", {}).get(variant_platform, []))
+)
+test_suites |= set(normalize_tests(variant.get("extra-tests", {}).get("all", [])))
+
+# Now adjust the variant's default test list with command-line arguments.
+test_suites |= set(normalize_tests(args.run_tests.split(",")))
+test_suites -= set(normalize_tests(args.skip_tests.split(",")))
+if "all" in args.skip_tests.split(","):
+    test_suites = []
+
+# Bug 1557130 - Atomics tests can create many additional threads which can
+# lead to resource exhaustion, resulting in intermittent failures. This was
+# only seen on beefy machines (> 32 cores), so limit the number of parallel
+# workers for now.
+#
+# Bug 1391877 - Windows test runs are getting mysterious timeouts when run
+# through taskcluster, but only when running many jit-test jobs in parallel.
+# Even at 16, some tests can overflow the paging file.
+worker_max = multiprocessing.cpu_count()
+jstest_workers = worker_max
+jittest_workers = worker_max
+if platform.system() == "Windows":
+    jstest_workers = min(worker_max, 16)
+    env["JSTESTS_EXTRA_ARGS"] = "-j{} ".format(jstest_workers) + env.get(
+        "JSTESTS_EXTRA_ARGS", ""
+    )
+    jittest_workers = min(worker_max, 8)
+    env["JITTEST_EXTRA_ARGS"] = "-j{} ".format(jittest_workers) + env.get(
+        "JITTEST_EXTRA_ARGS", ""
+    )
+print(
+    f"using {jstest_workers}/{worker_max} workers for jstests, "
+    f"{jittest_workers}/{worker_max} for jittest"
+)
+
+if use_minidump:
+    # Set up later js invocations to run with the breakpad injector loaded.
+    # Originally, I intended for this to be used with LD_PRELOAD, but when
+    # cross-compiling from 64- to 32-bit, that will fail and produce stderr
+    # output when running any 64-bit commands, which breaks eg mozconfig
+    # processing. So use the --dll command line mechanism universally.
+    for v in ("JSTESTS_EXTRA_ARGS", "JITTEST_EXTRA_ARGS"):
+        env[v] = "--args='--dll %s' %s" % (injector_lib, env.get(v, ""))
+
+# Always run all enabled tests, even if earlier ones failed. But return the
+# first failed status.
+results = [("(make-nonempty)", 0)]
+
+if "checks" in test_suites:
+    results.append(("make check", run_test_command([MAKE, "check"])))
+
+if "jittest" in test_suites:
+    results.append(("make check-jit-test", run_test_command([MAKE, "check-jit-test"])))
+if "jsapitests" in test_suites:
+    st = run_jsapitests([])
+    if st == 0:
+        st = run_jsapitests(["--frontend-only"])
+    results.append(("jsapi-tests", st))
+if "jstests" in test_suites:
+    results.append(("jstests", run_test_command([MAKE, "check-jstests"])))
+if "gdb" in test_suites:
+    test_script = os.path.join(DIR.js_src, "gdb", "run-tests.py")
+    auto_args = ["-s", "-o", "--no-progress"] if AUTOMATION else []
+    extra_args = env.get("GDBTEST_EXTRA_ARGS", "").split(" ")
+    results.append(
+        (
+            "gdb",
+            run_test_command([PYTHON, test_script, *auto_args, *extra_args, OBJDIR]),
+        )
+    )
+
+# FIXME bug 1291449: This would be unnecessary if we could run msan with -mllvm
+# -msan-keep-going, but in clang 3.8 it causes a hang during compilation.
+if variant.get("ignore-test-failures"):
+    logging.warning("Ignoring test results %s" % (results,))
+    results = [("ignored", 0)]
+
+if args.variant == "msan":
+    files = filter(lambda f: f.startswith("sanitize_log."), os.listdir(OUTDIR))
+    fullfiles = [os.path.join(OUTDIR, f) for f in files]
+
+    # Summarize results
+    sites = Counter()
+    errors = Counter()
+    for filename in fullfiles:
+        with open(os.path.join(OUTDIR, filename), "rb") as fh:
+            for line in fh:
+                m = re.match(
+                    r"^SUMMARY: \w+Sanitizer: (?:data race|use-of-uninitialized-value) (.*)",  # NOQA: E501
+                    line.strip(),
+                )
+                if m:
+                    # Some reports include file:line:column, some just
+                    # file:line. Just in case it's nondeterministic, we will
+                    # canonicalize to just the line number.
+                    site = re.sub(r"^(\S+?:\d+)(:\d+)* ", r"\1 ", m.group(1))
+                    sites[site] += 1
+
+    # Write a summary file and display it to stdout.
+    summary_filename = os.path.join(
+        env["MOZ_UPLOAD_DIR"], "%s_summary.txt" % args.variant
+    )
+    with open(summary_filename, "wb") as outfh:
+        for location, count in sites.most_common():
+            print >> outfh, "%d %s" % (count, location)
+    print(open(summary_filename, "rb").read())
+
+    if "max-errors" in variant:
+        max_allowed = variant["max-errors"]
+        print("Found %d errors out of %d allowed" % (len(sites), max_allowed))
+        if len(sites) > max_allowed:
+            results.append(("too many msan errors", 1))
+
+    # Gather individual results into a tarball. Note that these are
+    # distinguished only by pid of the JS process running within each test, so
+    # given the 16-bit limitation of pids, it's totally possible that some of
+    # these files will be lost due to being overwritten.
+    command = [
+        "tar",
+        "-C",
+        OUTDIR,
+        "-zcf",
+        os.path.join(env["MOZ_UPLOAD_DIR"], "%s.tar.gz" % args.variant),
+    ]
+    command += files
+    subprocess.call(command)
+
+# Upload dist/bin/js as js.wasm for the WASI build.
+if args.variant == "wasi":
+    command = [
+        "cp",
+        os.path.join(OBJDIR, "dist/bin/js"),
+        os.path.join(env["MOZ_UPLOAD_DIR"], "js.wasm"),
+    ]
+    subprocess.call(command)
+
+# Generate stacks from minidumps.
+if use_minidump:
+    venv_python = os.path.join(OBJDIR, "_virtualenvs", "build", "bin", "python3")
+    run_command(
+        [
+            venv_python,
+            os.path.join(DIR.source, "testing/mozbase/mozcrash/mozcrash/mozcrash.py"),
+            os.getenv("TMPDIR", "/tmp"),
+            os.path.join(OBJDIR, "dist/crashreporter-symbols"),
+        ]
+    )
+
+for name, st in results:
+    print("exit status %d for '%s'" % (st, name))
+
+# Pick the "worst" exit status. SIGSEGV might give a status of -11, so use the
+# maximum absolute value instead of just the maximum.
+exit_status = max((st for _, st in results), key=abs)
+
+# The exit status on Windows can be something like 2147483651 (0x80000003),
+# which will be converted to status zero in the caller. Mask off the high bits,
+# but if the result is zero then fall back to returning 1.
+if exit_status & 0xFF:
+    sys.exit(exit_status & 0xFF)
+else:
+    sys.exit(1 if exit_status else 0)
diff --git a/js/src/devtools/automation/cgc-jittest-timeouts.txt b/js/src/devtools/automation/cgc-jittest-timeouts.txt
new file mode 100644
index 0000000000..cde72dfd2c
--- /dev/null
+++ b/js/src/devtools/automation/cgc-jittest-timeouts.txt
@@ -0,0 +1,55 @@
+asm.js/testBug1117235.js
+asm.js/testParallelCompile.js
+auto-regress/bug653395.js
+auto-regress/bug654392.js
+auto-regress/bug675251.js
+auto-regress/bug729797.js
+baseline/bug847446.js
+baseline/bug852175.js
+basic/bug1610192.js
+basic/bug632964-regexp.js
+basic/bug656261.js
+basic/bug677957-2.js
+basic/bug753283.js
+basic/bug867946.js
+basic/destructuring-iterator.js
+basic/offThreadCompileToStencil-01.js
+basic/testAtomize.js
+basic/testBug614653.js
+basic/testBug686274.js
+basic/testManyVars.js
+basic/testTypedArrayInit.js
+debug/DebuggeeWouldRun-01.js
+debug/DebuggeeWouldRun-02.js
+gc/bug-1014972.js
+gc/bug-1246593.js
+gc/bug-906236.js
+gc/bug-906241.js
+ion/bug1197769.js
+ion/bug779245.js
+ion/bug787921.js
+ion/bug977966.js
+ion/close-iterators-1.js
+parallel/alloc-many-objs.js
+parallel/alloc-too-many-objs.js
+parser/bug-1263881-1.js
+parser/bug-1263881-2.js
+parser/bug-1263881-3.js
+parser/bug-1355046.js
+parser/modifier-yield-without-operand-2.js
+saved-stacks/bug-1006876-too-much-recursion.js
+self-test/assertDeepEq.js
+sunspider/check-string-unpack-code.js
+TypedObject/jit-read-u16-from-struct-array-in-struct.js
+TypedObject/jit-read-u32-from-struct-array-in-struct.js
+v8-v5/check-earley-boyer.js
+v8-v5/check-raytrace.js
+v8-v5/check-regexp.js
+v8-v5/check-splay.js
+wasm/spec/br_table.wast.js
+wasm/spec/f32.wast.js
+wasm/spec/f32_cmp.wast.js
+wasm/spec/f64.wast.js
+wasm/spec/f64_cmp.wast.js
+wasm/spec/float_exprs.wast.js
+xdr/decode-off-thread.js
diff --git a/js/src/devtools/automation/cgc-jstests-slow.txt b/js/src/devtools/automation/cgc-jstests-slow.txt
new file mode 100644
index 0000000000..16290cb047
--- /dev/null
+++ b/js/src/devtools/automation/cgc-jstests-slow.txt
@@ -0,0 +1,65 @@
+non262/object/15.2.3.6-dictionary-redefinition-01-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-02-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-03-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-04-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-05-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-06-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-07-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-08-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-09-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-10-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-11-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-12-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-13-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-14-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-15-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-16-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-17-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-18-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-19-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-20-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-21-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-22-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-23-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-24-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-25-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-26-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-27-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-28-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-29-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-30-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-31-of-32.js
+non262/object/15.2.3.6-dictionary-redefinition-32-of-32.js
+non262/object/15.2.3.6-middle-redefinition-1-of-8.js
+non262/object/15.2.3.6-middle-redefinition-2-of-8.js
+non262/object/15.2.3.6-middle-redefinition-3-of-8.js
+non262/object/15.2.3.6-middle-redefinition-4-of-8.js
+non262/object/15.2.3.6-middle-redefinition-5-of-8.js
+non262/object/15.2.3.6-middle-redefinition-6-of-8.js
+non262/object/15.2.3.6-middle-redefinition-7-of-8.js
+non262/object/15.2.3.6-middle-redefinition-8-of-8.js
+non262/object/15.2.3.6-redefinition-1-of-4.js
+non262/object/15.2.3.6-redefinition-2-of-4.js
+non262/object/15.2.3.6-redefinition-3-of-4.js
+non262/object/15.2.3.6-redefinition-4-of-4.js
+non262/extensions/array-isArray-proxy-recursion.js
+non262/String/normalize-generateddata-part0.js
+non262/String/normalize-generateddata-part1-not-listed.js
+non262/String/normalize-generateddata-part1.js
+non262/String/normalize-generateddata-part2.js
+non262/String/normalize-generateddata-part3.js
+non262/GC/regress-203278-2.js
+non262/GC/regress-203278-3.js
+non262/GC/regress-278725.js
+non262/regress/regress-312588.js
+non262/regress/regress-321971.js
+non262/regress/regress-360969-01.js
+non262/regress/regress-360969-02.js
+non262/regress/regress-360969-03.js
+non262/regress/regress-360969-04.js
+non262/regress/regress-360969-05.js
+non262/regress/regress-360969-06.js
+non262/extensions/regress-477187.js
+non262/regress/regress-452498-052-a.js
+non262/extensions/clone-complex-object.js
+non262/extensions/clone-object-deep.js
diff --git a/js/src/devtools/automation/smoosh-jittest-known-failure.txt b/js/src/devtools/automation/smoosh-jittest-known-failure.txt
new file mode 100644
index 0000000000..8d32545934
--- /dev/null
+++ b/js/src/devtools/automation/smoosh-jittest-known-failure.txt
@@ -0,0 +1,4 @@
+# https://github.com/mozilla-spidermonkey/jsparagus/issues/641
+class/class-static-01.js
+class/class-static-02.js
+class/class-static-03.js
diff --git a/js/src/devtools/automation/smoosh-jstests-known-failure-and-slow.txt b/js/src/devtools/automation/smoosh-jstests-known-failure-and-slow.txt
new file mode 100644
index 0000000000..7d905ca6c7
--- /dev/null
+++ b/js/src/devtools/automation/smoosh-jstests-known-failure-and-slow.txt
@@ -0,0 +1,81 @@
+# https://github.com/mozilla-spidermonkey/jsparagus/issues/635
+test262/language/expressions/assignmenttargettype/parenthesized-primaryexpression-objectliteral.js
+
+# https://github.com/mozilla-spidermonkey/jsparagus/issues/641
+test262/language/expressions/function/static-init-await-binding.js
+test262/language/expressions/generators/static-init-await-binding.js
+test262/language/expressions/object/ident-name-prop-name-literal-await-static-init.js
+test262/language/expressions/object/identifier-shorthand-static-init-await-valid.js
+test262/language/expressions/object/method-definition/static-init-await-binding-accessor.js
+test262/language/expressions/object/method-definition/static-init-await-binding-generator.js
+test262/language/expressions/object/method-definition/static-init-await-binding-normal.js
+test262/language/statements/class/static-init-abrupt.js
+test262/language/statements/class/static-init-arguments-functions.js
+test262/language/statements/class/static-init-arguments-methods.js
+test262/language/statements/class/static-init-await-binding-valid.js
+test262/language/statements/class/static-init-expr-new-target.js
+test262/language/statements/class/static-init-expr-this.js
+test262/language/statements/class/static-init-scope-lex-close.js
+test262/language/statements/class/static-init-scope-var-close.js
+test262/language/statements/class/static-init-scope-var-derived.js
+test262/language/statements/class/static-init-scope-var-open.js
+test262/language/statements/class/static-init-statement-list-optional.js
+test262/language/statements/class/static-init-super-property.js
+test262/language/statements/const/static-init-await-binding-valid.js
+test262/language/statements/function/static-init-await-binding-valid.js
+test262/language/statements/let/static-init-await-binding-valid.js
+test262/language/statements/try/static-init-await-binding-valid.js
+test262/language/statements/variable/dstr/ary-ptrn-elem-id-static-init-await-valid.js
+test262/language/statements/variable/dstr/obj-ptrn-elem-id-static-init-await-valid.js
+test262/language/statements/variable/static-init-await-binding-valid.js
+
+# https://github.com/mozilla-spidermonkey/jsparagus/issues/650
+test262/language/expressions/dynamic-import/2nd-param-assert-enumeration-abrupt.js
+test262/language/expressions/dynamic-import/2nd-param-assert-enumeration.js
+test262/language/expressions/dynamic-import/2nd-param-assert-non-object.js
+test262/language/expressions/dynamic-import/2nd-param-assert-undefined.js
+test262/language/expressions/dynamic-import/2nd-param-assert-value-abrupt.js
+test262/language/expressions/dynamic-import/2nd-param-assert-value-non-string.js
+test262/language/expressions/dynamic-import/2nd-param-evaluation-abrupt-return.js
+test262/language/expressions/dynamic-import/2nd-param-evaluation-abrupt-throw.js
+test262/language/expressions/dynamic-import/2nd-param-evaluation-sequence.js
+test262/language/expressions/dynamic-import/2nd-param-get-assert-error.js
+test262/language/expressions/dynamic-import/2nd-param-in.js
+test262/language/expressions/dynamic-import/2nd-param-non-object.js
+test262/language/expressions/dynamic-import/2nd-param-trailing-comma-fulfill.js
+test262/language/expressions/dynamic-import/2nd-param-trailing-comma-reject.js
+test262/language/expressions/dynamic-import/2nd-param-yield-expr.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-block-labeled-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-block-labeled-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-block-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-block-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-do-while-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-do-while-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-else-braceless-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-else-braceless-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-else-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-else-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-function-return-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-function-return-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-function-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-function-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-if-braceless-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-if-braceless-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-if-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-if-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-with-expression-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-with-expression-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-with-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-with-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/top-level-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/top-level-trailing-comma-second.js
+test262/language/expressions/dynamic-import/trailing-comma-fulfill.js
+test262/language/expressions/dynamic-import/trailing-comma-reject.js
+
+# slow
+non262/String/normalize-generateddata-part0.js
+non262/String/normalize-generateddata-part1-not-listed.js
+non262/String/normalize-generateddata-part1.js
+non262/String/normalize-generateddata-part2.js
+non262/String/normalize-generateddata-part3.js
+non262/regress/regress-155081-2.js
diff --git a/js/src/devtools/automation/smoosh-jstests-known-failure.txt b/js/src/devtools/automation/smoosh-jstests-known-failure.txt
new file mode 100644
index 0000000000..7a3be5c211
--- /dev/null
+++ b/js/src/devtools/automation/smoosh-jstests-known-failure.txt
@@ -0,0 +1,73 @@
+# https://github.com/mozilla-spidermonkey/jsparagus/issues/635
+test262/language/expressions/assignmenttargettype/parenthesized-primaryexpression-objectliteral.js
+
+# https://github.com/mozilla-spidermonkey/jsparagus/issues/641
+test262/language/expressions/function/static-init-await-binding.js
+test262/language/expressions/generators/static-init-await-binding.js
+test262/language/expressions/object/ident-name-prop-name-literal-await-static-init.js
+test262/language/expressions/object/identifier-shorthand-static-init-await-valid.js
+test262/language/expressions/object/method-definition/static-init-await-binding-accessor.js
+test262/language/expressions/object/method-definition/static-init-await-binding-generator.js
+test262/language/expressions/object/method-definition/static-init-await-binding-normal.js
+test262/language/statements/class/static-init-abrupt.js
+test262/language/statements/class/static-init-arguments-functions.js
+test262/language/statements/class/static-init-arguments-methods.js
+test262/language/statements/class/static-init-await-binding-valid.js
+test262/language/statements/class/static-init-expr-new-target.js
+test262/language/statements/class/static-init-expr-this.js
+test262/language/statements/class/static-init-scope-lex-close.js
+test262/language/statements/class/static-init-scope-var-close.js
+test262/language/statements/class/static-init-scope-var-derived.js
+test262/language/statements/class/static-init-scope-var-open.js
+test262/language/statements/class/static-init-statement-list-optional.js
+test262/language/statements/class/static-init-super-property.js
+test262/language/statements/const/static-init-await-binding-valid.js
+test262/language/statements/function/static-init-await-binding-valid.js
+test262/language/statements/let/static-init-await-binding-valid.js
+test262/language/statements/try/static-init-await-binding-valid.js
+test262/language/statements/variable/dstr/ary-ptrn-elem-id-static-init-await-valid.js
+test262/language/statements/variable/dstr/obj-ptrn-elem-id-static-init-await-valid.js
+test262/language/statements/variable/static-init-await-binding-valid.js
+
+# https://github.com/mozilla-spidermonkey/jsparagus/issues/650
+test262/language/expressions/dynamic-import/2nd-param-assert-enumeration-abrupt.js
+test262/language/expressions/dynamic-import/2nd-param-assert-enumeration.js
+test262/language/expressions/dynamic-import/2nd-param-assert-non-object.js
+test262/language/expressions/dynamic-import/2nd-param-assert-undefined.js
+test262/language/expressions/dynamic-import/2nd-param-assert-value-abrupt.js
+test262/language/expressions/dynamic-import/2nd-param-assert-value-non-string.js
+test262/language/expressions/dynamic-import/2nd-param-evaluation-abrupt-return.js
+test262/language/expressions/dynamic-import/2nd-param-evaluation-abrupt-throw.js
+test262/language/expressions/dynamic-import/2nd-param-evaluation-sequence.js
+test262/language/expressions/dynamic-import/2nd-param-get-assert-error.js
+test262/language/expressions/dynamic-import/2nd-param-in.js
+test262/language/expressions/dynamic-import/2nd-param-non-object.js
+test262/language/expressions/dynamic-import/2nd-param-trailing-comma-fulfill.js
+test262/language/expressions/dynamic-import/2nd-param-trailing-comma-reject.js
+test262/language/expressions/dynamic-import/2nd-param-yield-expr.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-block-labeled-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-block-labeled-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-block-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-block-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-do-while-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-do-while-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-else-braceless-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-else-braceless-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-else-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-else-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-function-return-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-function-return-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-function-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-function-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-if-braceless-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-if-braceless-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-if-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-if-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-with-expression-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-with-expression-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-with-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/nested-with-trailing-comma-second.js
+test262/language/expressions/dynamic-import/syntax/valid/top-level-trailing-comma-first.js
+test262/language/expressions/dynamic-import/syntax/valid/top-level-trailing-comma-second.js
+test262/language/expressions/dynamic-import/trailing-comma-fulfill.js
+test262/language/expressions/dynamic-import/trailing-comma-reject.js
diff --git a/js/src/devtools/automation/smoosh-jstests-slow.txt b/js/src/devtools/automation/smoosh-jstests-slow.txt
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/js/src/devtools/automation/smoosh-jstests-slow.txt
diff --git a/js/src/devtools/automation/tsan-slow.txt b/js/src/devtools/automation/tsan-slow.txt
new file mode 100644
index 0000000000..06dc763c08
--- /dev/null
+++ b/js/src/devtools/automation/tsan-slow.txt
@@ -0,0 +1,23 @@
+# Skip tests that run too slowly under tsan.
+basic/spread-call-maxarg.js
+basic/spread-call-near-maxarg.js
+arrays/too-long-array-splice.js
+bug-1698543.js
+# Skip tests that use too much memory under tsan - see bug 1519263.
+bug1355573.js
+max-string-length.js
+expr-decompiler-bug1475953.js
+regress-303213.js
+f32.wast.js
+f64.wast.js
+f32_cmp.wast.js
+f64_cmp.wast.js
+bug1470732.js
+bug1238815.js
+bug1315943.js
+bug-1382431.js
+float_exprs.wast.js
+bug858586.js
+bug1296667.js
+bug-1465695.js
+integer.js
diff --git a/js/src/devtools/automation/variants/arm-sim b/js/src/devtools/automation/variants/arm-sim
new file mode 100644
index 0000000000..80ca937e01
--- /dev/null
+++ b/js/src/devtools/automation/variants/arm-sim
@@ -0,0 +1,7 @@
+{
+    "__comment1": "Bug 1700372: --disable-clang-plugin is needed to avoid a warning (that we treat as an error) for comparing a number to itself to test for NaN",
+    "configure-args": "--enable-simulator=arm --target=i686-pc-linux --enable-rust-simd --disable-clang-plugin",
+    "optimize": true,
+    "debug": true,
+    "bits": 32
+}
diff --git a/js/src/devtools/automation/variants/arm-sim-osx b/js/src/devtools/automation/variants/arm-sim-osx
new file mode 100644
index 0000000000..4e03dadd9f
--- /dev/null
+++ b/js/src/devtools/automation/variants/arm-sim-osx
@@ -0,0 +1,6 @@
+{
+    "configure-args": "--enable-simulator=arm --target=i686-apple-darwin10.0.0 --enable-rust-simd",
+    "optimize": true,
+    "debug": true,
+    "bits": 32
+}
diff --git a/js/src/devtools/automation/variants/arm64-sim b/js/src/devtools/automation/variants/arm64-sim
new file mode 100644
index 0000000000..bbaec58fac
--- /dev/null
+++ b/js/src/devtools/automation/variants/arm64-sim
@@ -0,0 +1,10 @@
+{
+    "configure-args": "--enable-simulator=arm64 --enable-rust-simd",
+    "optimize": true,
+    "debug": true,
+    "env": {
+        "JSTESTS_EXTRA_ARGS": "--exclude-file={DIR}/arm64-jstests-slow.txt",
+        "JITTEST_EXTRA_ARGS": "--ignore-timeouts={DIR}/arm64-jittests-timeouts.txt --jitflags=none --args=--baseline-eager -x ion/ -x asm.js/"
+    },
+    "bits": 64
+}
diff --git a/js/src/devtools/automation/variants/asan b/js/src/devtools/automation/variants/asan
new file mode 100644
index 0000000000..62091639f6
--- /dev/null
+++ b/js/src/devtools/automation/variants/asan
@@ -0,0 +1,10 @@
+{
+    "configure-args": "--enable-debug-symbols='-gline-tables-only' --enable-gczeal --disable-jemalloc --enable-address-sanitizer --enable-rust-simd",
+    "optimize": true,
+    "debug": false,
+    "compiler": "clang",
+    "env": {
+        "LLVM_SYMBOLIZER": "{MOZ_FETCHES_DIR}/llvm-symbolizer/bin/llvm-symbolizer"
+    },
+    "use_minidump": false
+}
diff --git a/js/src/devtools/automation/variants/compacting b/js/src/devtools/automation/variants/compacting
new file mode 100644
index 0000000000..68d22bd72e
--- /dev/null
+++ b/js/src/devtools/automation/variants/compacting
@@ -0,0 +1,14 @@
+{
+    "configure-args": "--enable-ctypes --enable-rust-simd",
+    "optimize": true,
+    "debug": true,
+    "env": {
+        "JS_GC_ZEAL": "IncrementalMultipleSlices",
+        "JITTEST_EXTRA_ARGS": "--args=--enable-parallel-marking --jitflags=debug --ignore-timeouts={DIR}/cgc-jittest-timeouts.txt",
+        "JSTESTS_EXTRA_ARGS": "--args=--enable-parallel-marking --exclude-file={DIR}/cgc-jstests-slow.txt"
+    },
+    "skip-tests": {
+        "win32": ["jstests"],
+        "win64": ["jstests"]
+    }
+}
diff --git a/js/src/devtools/automation/variants/dtrace b/js/src/devtools/automation/variants/dtrace
new file mode 100644
index 0000000000..0678819225
--- /dev/null
+++ b/js/src/devtools/automation/variants/dtrace
@@ -0,0 +1,5 @@
+{
+    "configure-args": "--enable-dtrace --enable-debug-symbols --enable-rust-simd",
+    "optimize": true,
+    "debug": true,
+}
diff --git a/js/src/devtools/automation/variants/fuzzilli b/js/src/devtools/automation/variants/fuzzilli
new file mode 100644
index 0000000000..61605e3a96
--- /dev/null
+++ b/js/src/devtools/automation/variants/fuzzilli
@@ -0,0 +1,14 @@
+{
+    "configure-args": "--enable-js-fuzzilli --enable-fuzzing --enable-gczeal --disable-shared-js",
+    "optimize": true,
+    "debug": true,
+    "nspr": false,
+    "compiler": "clang",
+    "env": {
+        "JITTEST_EXTRA_ARGS": "--jitflags=ion"
+    },
+    "skip-tests": {
+        "all": ["jstests"]
+    },
+    "use_minidump": false
+}
diff --git a/js/src/devtools/automation/variants/fuzzing b/js/src/devtools/automation/variants/fuzzing
new file mode 100644
index 0000000000..146b89e355
--- /dev/null
+++ b/js/src/devtools/automation/variants/fuzzing
@@ -0,0 +1,13 @@
+{
+    "configure-args": "--enable-fuzzing --enable-gczeal --enable-debug-symbols='-gline-tables-only -gdwarf-2' --disable-jemalloc --disable-stdcxx-compat --enable-address-sanitizer --enable-ctypes --enable-nspr-build --enable-rust-simd",
+    "optimize": true,
+    "debug": false,
+    "compiler": "clang",
+    "env": {
+        "JITTEST_EXTRA_ARGS": "--jitflags=none",
+        "JSTESTS_EXTRA_ARGS": "--jitflags=none",
+        "LLVM_SYMBOLIZER": "{MOZ_FETCHES_DIR}/llvm-symbolizer/bin/llvm-symbolizer",
+        "ASAN_SYMBOLIZER_PATH": "{MOZ_FETCHES_DIR}/llvm-symbolizer/bin/llvm-symbolizer"
+    },
+    "use_minidump": false
+}
diff --git a/js/src/devtools/automation/variants/gdb b/js/src/devtools/automation/variants/gdb
new file mode 100644
index 0000000000..d86d265680
--- /dev/null
+++ b/js/src/devtools/automation/variants/gdb
@@ -0,0 +1,16 @@
+{
+    "configure-args": "--enable-rust-simd",
+    "debug": true,
+    "optimize": false,
+    "compiler": "gcc",
+    "skip-tests": {
+        "all": ["jstests", "jittest", "jsapitests"]
+    },
+    "extra-tests": {
+        "all": ["gdb"]
+    },
+    "env": {
+        "GDBTEST_EXTRA_ARGS": "--exclude=unwind"
+    },
+    "use_minidump": false
+}
diff --git a/js/src/devtools/automation/variants/msan b/js/src/devtools/automation/variants/msan
new file mode 100644
index 0000000000..e85e67dfb5
--- /dev/null
+++ b/js/src/devtools/automation/variants/msan
@@ -0,0 +1,14 @@
+{
+    "configure-args": "--enable-debug-symbols='-gline-tables-only' --disable-jemalloc --enable-memory-sanitizer --without-system-zlib --enable-rust-simd",
+    "optimize": true,
+    "debug": false,
+    "compiler": "clang",
+    "env": {
+        "JITTEST_EXTRA_ARGS": "--jitflags=interp --ignore-timeouts={DIR}/cgc-jittest-timeouts.txt",
+        "JSTESTS_EXTRA_ARGS": "--jitflags=interp --exclude-file={DIR}/cgc-jstests-slow.txt",
+        "MSAN_OPTIONS": "external_symbolizer_path={MOZ_FETCHES_DIR}/llvm-symbolizer/bin/llvm-symbolizer:log_path={OUTDIR}/sanitize_log"
+    },
+    "ignore-test-failures": "true",
+    "max-errors": 7,
+    "use_minidump": false
+}
diff --git a/js/src/devtools/automation/variants/nojit b/js/src/devtools/automation/variants/nojit
new file mode 100644
index 0000000000..9cebcfcd16
--- /dev/null
+++ b/js/src/devtools/automation/variants/nojit
@@ -0,0 +1,4 @@
+{
+    "configure-args": "--disable-jit --enable-warnings-as-errors --enable-rust-simd",
+    "optimize": true
+}
diff --git a/js/src/devtools/automation/variants/nojit-debug b/js/src/devtools/automation/variants/nojit-debug
new file mode 100644
index 0000000000..c067d617b1
--- /dev/null
+++ b/js/src/devtools/automation/variants/nojit-debug
@@ -0,0 +1,4 @@
+{
+    "configure-args": "--disable-jit --enable-warnings-as-errors --enable-rust-simd",
+    "optimize": false
+}
diff --git a/js/src/devtools/automation/variants/nonunified b/js/src/devtools/automation/variants/nonunified
new file mode 100644
index 0000000000..9e6c40430f
--- /dev/null
+++ b/js/src/devtools/automation/variants/nonunified
@@ -0,0 +1,10 @@
+{
+    "configure-args": "--enable-warnings-as-errors --enable-rust-simd",
+    "debug": true,
+    "env": {
+        "JS_SMOOSH_DISABLE_OPCODE_CHECK": "1"
+    },
+    "skip-tests": {
+        "all": ["jstests", "jittest", "checks"]
+    }
+}
diff --git a/js/src/devtools/automation/variants/plain b/js/src/devtools/automation/variants/plain
new file mode 100644
index 0000000000..0c97a5d535
--- /dev/null
+++ b/js/src/devtools/automation/variants/plain
@@ -0,0 +1,8 @@
+{
+    "configure-args": "--enable-rust-simd",
+    "optimize": true,
+    "compiler": "gcc",
+    "env": {
+        "JSTESTS_EXTRA_ARGS": "--jitflags=jstests"
+    }
+}
diff --git a/js/src/devtools/automation/variants/plaindebug b/js/src/devtools/automation/variants/plaindebug
new file mode 100644
index 0000000000..c03419f8f9
--- /dev/null
+++ b/js/src/devtools/automation/variants/plaindebug
@@ -0,0 +1,7 @@
+{
+    "configure-args": "--enable-rust-simd",
+    "debug": true,
+    "env": {
+        "JSTESTS_EXTRA_ARGS": "--jitflags=debug"
+    }
+}
diff --git a/js/src/devtools/automation/variants/rootanalysis b/js/src/devtools/automation/variants/rootanalysis
new file mode 100644
index 0000000000..7c0fb5242b
--- /dev/null
+++ b/js/src/devtools/automation/variants/rootanalysis
@@ -0,0 +1,9 @@
+{
+    "configure-args": "--enable-ctypes --enable-rust-simd",
+    "optimize": true,
+    "debug": true,
+    "env": {
+        "JS_GC_ZEAL": "GenerationalGC",
+        "JSTESTS_EXTRA_ARGS": "--jitflags=debug"
+    }
+}
diff --git a/js/src/devtools/automation/variants/rtdebug b/js/src/devtools/automation/variants/rtdebug
new file mode 100644
index 0000000000..d3450261ff
--- /dev/null
+++ b/js/src/devtools/automation/variants/rtdebug
@@ -0,0 +1,8 @@
+{
+    "debug": true,
+    "optimize": true,
+    "configure-args": "--enable-record-tuple",
+    "skip-tests": {
+        "all": ["jittest", "jsapitests", "checks"]
+    }
+}
diff --git a/js/src/devtools/automation/variants/smoosh b/js/src/devtools/automation/variants/smoosh
new file mode 100644
index 0000000000..148c2f8c21
--- /dev/null
+++ b/js/src/devtools/automation/variants/smoosh
@@ -0,0 +1,8 @@
+{
+    "configure-args": "--enable-rust-simd --enable-smoosh",
+    "optimize": true,
+    "env": {
+        "JSTESTS_EXTRA_ARGS": "--args='--smoosh' --jitflags=jstests --exclude-file={DIR}/smoosh-jstests-known-failure.txt",
+        "JITTEST_EXTRA_ARGS": "--args='--smoosh' --exclude-file={DIR}/smoosh-jittest-known-failure.txt"
+    }
+}
diff --git a/js/src/devtools/automation/variants/smooshdebug b/js/src/devtools/automation/variants/smooshdebug
new file mode 100644
index 0000000000..07b50cf917
--- /dev/null
+++ b/js/src/devtools/automation/variants/smooshdebug
@@ -0,0 +1,8 @@
+{
+    "configure-args": "--enable-rust-simd --enable-smoosh",
+    "debug": true,
+    "env": {
+        "JSTESTS_EXTRA_ARGS": "--args='--smoosh' --jitflags=debug --exclude-file={DIR}/smoosh-jstests-known-failure-and-slow.txt",
+        "JITTEST_EXTRA_ARGS": "--args='--smoosh' --exclude-file={DIR}/smoosh-jittest-known-failure.txt"
+    }
+}
diff --git a/js/src/devtools/automation/variants/tsan b/js/src/devtools/automation/variants/tsan
new file mode 100644
index 0000000000..76629bd576
--- /dev/null
+++ b/js/src/devtools/automation/variants/tsan
@@ -0,0 +1,12 @@
+{
+    "configure-args": "--enable-debug-symbols='-gline-tables-only' --disable-jemalloc --enable-thread-sanitizer --enable-rust-simd",
+    "optimize": true,
+    "debug": false,
+    "compiler": "clang",
+    "env": {
+        "LLVM_SYMBOLIZER": "{MOZ_FETCHES_DIR}/llvm-symbolizer/bin/llvm-symbolizer",
+        "JITTEST_EXTRA_ARGS": "--args=--enable-parallel-marking --jitflags=tsan --ignore-timeouts={DIR}/cgc-jittest-timeouts.txt --unusable-error-status --exclude-from={DIR}/tsan-slow.txt",
+        "JSTESTS_EXTRA_ARGS": "--args=--enable-parallel-marking --exclude-file={DIR}/cgc-jstests-slow.txt"
+    },
+    "use_minidump": false
+}
diff --git a/js/src/devtools/automation/variants/warnaserr b/js/src/devtools/automation/variants/warnaserr
new file mode 100644
index 0000000000..98d5e96fe1
--- /dev/null
+++ b/js/src/devtools/automation/variants/warnaserr
@@ -0,0 +1,4 @@
+{
+    "configure-args": "--enable-warnings-as-errors --enable-rust-simd",
+    "optimize": true
+}
diff --git a/js/src/devtools/automation/variants/warnaserrdebug b/js/src/devtools/automation/variants/warnaserrdebug
new file mode 100644
index 0000000000..ca1f14fef1
--- /dev/null
+++ b/js/src/devtools/automation/variants/warnaserrdebug
@@ -0,0 +1,4 @@
+{
+    "configure-args": "--enable-warnings-as-errors",
+    "debug": true
+}
diff --git a/js/src/devtools/automation/variants/wasi b/js/src/devtools/automation/variants/wasi
new file mode 100644
index 0000000000..18fb91ba4e
--- /dev/null
+++ b/js/src/devtools/automation/variants/wasi
@@ -0,0 +1,14 @@
+{
+    "configure-args": "--enable-project=js --target=wasm32-unknown-wasi --disable-stdcxx-compat --without-system-zlib --without-intl-api --disable-jit --disable-shared-js --disable-shared-memory --disable-tests --disable-clang-plugin --disable-debug-symbols --enable-jitspew",
+    "optimize": true,
+    "debug": false,
+    "nspr": false,
+    "compiler": "clang",
+    "env": {
+        "JITTEST_EXTRA_ARGS": "--jitflags=none"
+    },
+    "skip-tests": {
+        "all": ["jstests", "jittest", "jsapitests"]
+    },
+    "use_minidump": false
+}
diff --git a/js/src/devtools/automation/variants/wasi-intl b/js/src/devtools/automation/variants/wasi-intl
new file mode 100644
index 0000000000..dbaaffff66
--- /dev/null
+++ b/js/src/devtools/automation/variants/wasi-intl
@@ -0,0 +1,14 @@
+{
+    "configure-args": "--enable-project=js --target=wasm32-unknown-wasi --disable-stdcxx-compat --without-system-zlib --disable-jit --disable-shared-js --disable-shared-memory --disable-tests --disable-clang-plugin --disable-debug-symbols --enable-jitspew",
+    "optimize": true,
+    "debug": false,
+    "nspr": false,
+    "compiler": "clang",
+    "env": {
+        "JITTEST_EXTRA_ARGS": "--jitflags=none"
+    },
+    "skip-tests": {
+        "all": ["jstests", "jittest", "jsapitests"]
+    },
+    "use_minidump": false
+}
diff --git a/js/src/devtools/automation/variants/wasm-noexperimental b/js/src/devtools/automation/variants/wasm-noexperimental
new file mode 100644
index 0000000000..2d1fcb4e58
--- /dev/null
+++ b/js/src/devtools/automation/variants/wasm-noexperimental
@@ -0,0 +1,7 @@
+{
+    "configure-args": "--wasm-no-experimental",
+    "debug": true,
+    "skip-tests": {
+        "all": ["jstests", "jsapitests"]
+    }
+}