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Andreas Haas 59bb18867a [x64] Consider both operands when emitting the REX prefix for testb. 
The testb instruction requires the REX prefix when either of its
operands uses a register with the high bit set. The existing code only
considered the register operand. In the test case the REX prefix was not
emitted because the testb instruction had the register operand RAX which
does not have the high bit set. The REX prefix was necessary though
because the memory operand used R8, which has the high bit set.

R=bmeurer@chromium.org
BUG=chromium:688876

Change-Id: Ib214bebbe75965664f2aea530e29afa95a54f44f
Reviewed-on: https://chromium-review.googlesource.com/439145
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43030}
2017-02-08 10:27:45 +00:00
benchmarks
build_overrides Remove build_overrides/v8.gni. 2017-01-26 20:18:58 +00:00
docs
gni [foozzie] Support multi-architecture builds 2017-02-02 11:32:52 +00:00
gypfiles Reland "[test] Add back lsan leak detection" 2017-02-01 10:39:28 +00:00
include Expose more %ArrayPrototype% functions to the public API. 2017-02-07 21:42:06 +00:00
infra [build] Let v8gen support mipsel architectures 2017-02-06 09:28:07 +00:00
samples Reland of land "Turn libbase into a component" (patchset #1 id:1 of https://codereview.chromium.org/2396933002/ ) 2016-10-07 07:56:52 +00:00
src [x64] Consider both operands when emitting the REX prefix for testb. 2017-02-08 10:27:45 +00:00
test [x64] Consider both operands when emitting the REX prefix for testb. 2017-02-08 10:27:45 +00:00
testing Use GTEST_LANG_CXX11 in V8 2016-07-25 13:06:42 +00:00
third_party Adapt String::find method via StringUtil adapter. 2017-02-03 22:17:24 +00:00
tools [foozzie] Suppress syntax errors from stack overflow 2017-02-08 08:16:27 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.gitignore Revert of [wasm] include JS conformance tests in Wasm mjsunit tests (patchset #5 id:80001 of https://codereview.chromium.org/2660903003/ ) 2017-01-31 19:59:30 +00:00
.gn [build] Roll build a3b623a:11a223f 2016-11-29 11:17:15 +00:00
.ycm_extra_conf.py Use C++11 / gnu++11, not 0x 2016-03-22 15:24:43 +00:00
AUTHORS [counters] Add UseCounters for 'f() = 0' syntax 2016-12-27 17:48:40 +00:00
BUILD.gn [builtins] Port parameter and argument-related code stubs to CSA 2017-02-07 16:02:44 +00:00
ChangeLog
CODE_OF_CONDUCT.md
codereview.settings
DEPS Revert of test262 roll (patchset #1 id:1 of https://codereview.chromium.org/2681833003/ ) 2017-02-07 23:33:08 +00:00
LICENSE
LICENSE.fdlibm Add LICENSE.fdlibm for all the fdlibm imported sources. 2016-06-09 07:17:03 +00:00
LICENSE.strongtalk
LICENSE.v8
LICENSE.valgrind
Makefile Make enabling of CSA verifier a build-time flag 2017-01-27 11:32:27 +00:00
Makefile.android [build] Fix d8-for-Android builds 2016-05-20 12:10:45 +00:00
OWNERS Make clemensh owner (wasm, asmjs and general) 2017-01-13 10:20:44 +00:00
PRESUBMIT.py [test] Only run presubmit for changed status files 2016-12-06 11:42:11 +00:00
README.md
snapshot_toolchain.gni Use clang for snapshot_toolchain by default, except on ChromeOS. 2016-08-23 14:04:27 +00:00
WATCHLISTS [inspector] added devtools-reviews@chromium.org in WATCHLISTS for inspector 2016-09-29 15:16:54 +00:00

README.md

V8 JavaScript Engine

V8 is Google's open source JavaScript engine.

V8 implements ECMAScript as specified in ECMA-262.

V8 is written in C++ and is used in Google Chrome, the open source browser from Google.

V8 can run standalone, or can be embedded into any C++ application.

V8 Project page: https://github.com/v8/v8/wiki

Getting the Code

Checkout depot tools, and run

    fetch v8

This will checkout V8 into the directory v8 and fetch all of its dependencies. To stay up to date, run

    git pull origin
    gclient sync

For fetching all branches, add the following into your remote configuration in .git/config:

    fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
    fetch = +refs/tags/*:refs/tags/*

Contributing

Please follow the instructions mentioned on the V8 wiki.