The mode without write barriers works only if incremental marking
is disabled and the single generation mode is enabled.

Bug: v8:9533
Change-Id: Iecf83b0810f757c9b50e7fb338a2905af938f1d8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1716471
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63033}

The s390 port uses the auxvector APIs to detect hardware/OS
support for various z/Architecture features.  These checks
only make sense if we are running native, non-simulator mode.

Moving the include<auxv.h> under V8_HOST_ARCH_S390 enables
compilation of s390 simulation on platforms that do not have auxv.h
header available.

R=miladfar@ca.ibm.com,jyan@ca.ibm.com

Change-Id: I685681a4f8786509beb181d8ae63876b3a4235b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1726844Reviewed-by: Milad Farazmand <miladfar@ca.ibm.com>
Commit-Queue: Joran Siu <joransiu@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#62999}

Change-Id: If012756df78646769fb89200f2d10d71827d01a5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1687063
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#62787}

The {msg} argument to Assembler::stop is dead since
https://crrev.com/2178093003 (July 2016). This CL removes it.

R=mstarzinger@chromium.org

Bug: v8:9396
Change-Id: I1593361709ab4977760f1ea21e3008797ef99cab
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1692925
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62623}

This CL renames jsregexp.{h,cc} to regexp.{h,cc}, hides all non-public
functions of RegExpImpl in the .cc file, and renames the public parts
of RegExpImpl to just RegExp. Include directives from outside the
src/regexp directory are limited to regexp.h, regexp-stack.h, and
regexp-utils.h. We also expose all result codes that can be returned
by irregexp code (including RETRY) on the public header since they
are needed elsewhere, e.g. in builtins.

Bug: v8:9359
Change-Id: Iae1a01ac9f6e1e4dc168f3fbe8fe8679cb6b1259
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1662297Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62240}

Port 7b48dd55

Original Commit Message:

    This changes Generate_ContinueToBuiltinHelper to generate code to load
    the builtin address directly from the builtins table rather than going
    via the executable code in the trampoline's code object.

    The set up for Generate_ContinueToBuiltinHelper is changed so that the
    builtin index is stored on the stack in place of the builtin Code
    object which is no longer needed.

R=delphick@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: Ie696468685517333515bf4b0b78fdd7d8c4e7763
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1660628Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#62187}

Since TurboAssembler::CallBuiltinPointer actually takes the
builtin_index as input, rename the function to CallBuiltinByIndex.

Bug: v8:9183
Change-Id: I4958d96f18a48a2ec91525d80d597a35e45d5989
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1657915
Auto-Submit: Dan Elphick <delphick@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62151}

Bug: v8:9247
Change-Id: I2f999ed3a8cc0931e5092f2ac6e709b8ff3f9e42
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630678
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61896}