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18d02b4fa9
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Benedikt Meurer 18d02b4fa9 [turbofan] Reduce promise creation overhead in async functions 
This adds a new operator JSCreatePromise, which currently allocates
a native JSPromise instance and initializes it to pending state.

In addition to that we introduce a new PromiseHookProtector, which
get's invalidated the first time someone enables the debugger or
installs a PromiseHook (via async_hooks for example). As long as
the protector is intact we lower AsyncFunctionPromiseCreate to
JSCreatePromise and AsyncFunctionPromiseRelease to a no-op in
optimized code.

This yields a speedup of roughly 33% on the benchmark mentioned
in the bug.

Bug: v8:7271, v8:7253
Change-Id: Ib5d219f2b6e052a7cc5e6ed5aa66dd3c8885a859
Reviewed-on: https://chromium-review.googlesource.com/883124
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50849}
2018-01-24 19:03:43 +00:00
..
blink_tests [Interpreter] Remove failure expectation for observer-expectations blink test. 2016-06-27 16:10:20 +00:00
cfi Port cfi blacklist from chromium. 2015-09-15 08:45:51 +00:00
dev [gm.py] Use autoninja instead of ninja 2018-01-19 19:31:58 +00:00
foozzie [foozzie] Add flag experiment on correctness fuzzer for atomic gc-stress 2018-01-17 14:30:54 +00:00
gcmole [gyp] move gyp files from src to gypfiles. 2018-01-23 09:54:36 +00:00
generate_shim_headers Add dependency to ICU 4.6 2013-07-01 08:32:41 +00:00
heap-stats [object-stats] Record details for BytecodeArray and Code 2018-01-24 14:32:22 +00:00
ignition [Interpreter] Replace --ignition flag with a --stress-fullcodegen 2017-07-13 13:05:00 +00:00
jsfunfuzz [gyp] move gyp files from src to gypfiles. 2018-01-23 09:54:36 +00:00
link_clicker.extension [tools] Add link_click chrome extension 2017-05-09 15:25:21 +00:00
mb [build] Drop Chromium-specific features from V8's MB fork 2017-11-21 10:25:19 +00:00
memory [build] Fix win-asan compilation 2017-10-16 08:37:15 +00:00
msan [gn] Add missing dep and blacklist for msan 2016-07-29 09:01:24 +00:00
ninja [ycm] The YouCompleteMe configuration is not VIM specific. 2015-02-12 07:21:13 +00:00
node [node] move build path fully into gyp file. 2018-01-19 09:58:32 +00:00
perf [tools] Refactor patch/no-patch terminology in run_perf.py 2017-11-22 07:19:50 +00:00
profview [profview] Use identity operator 2017-11-08 09:11:33 +00:00
profviz [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
release [node] scripts to fetch deps and build monolithic .a for node. 2017-12-18 09:57:28 +00:00
sanitizers Revert "[heap] Add TSAN suppression for lock-order inversion in Scavenger" 2017-10-25 10:18:49 +00:00
sodium Add tool to visualize machine code/lithium. 2013-10-21 13:35:48 +00:00
testrunner [test] Move timeout control to timeout processor 2018-01-24 19:02:37 +00:00
turbolizer [turbolizer] Fix scrolling in disassembly view 2018-01-18 13:47:35 +00:00
ubsan [build] Fix ubsan compilation 2017-07-19 14:08:39 +00:00
unittests [test] Roll out new test runner to all testing with arch x64 2018-01-24 09:06:23 +00:00
v8.xcodeproj Add support for building Xcode project files from GYP files 2011-06-09 09:07:17 +00:00
vim [ycm] The YouCompleteMe configuration is not VIM specific. 2015-02-12 07:21:13 +00:00
visual_studio Remove the Visual Studio project files 2011-05-02 13:43:13 +00:00
wasm [wasm] Update spec tests 2017-12-08 15:25:10 +00:00
adb-d8.py [tools] Various small adb-d8.py enhancements 2017-08-24 14:20:55 +00:00
android-build.sh Rewrite Makefile rules for Android to allow parallel execution 2012-07-27 11:14:44 +00:00
android-ll-prof.sh Change default ARCH version in android low-level profiler script to 4.6 2012-10-08 11:11:30 +00:00
android-run.py Bug fix: android-run.py 2016-07-18 09:45:23 +00:00
android-sync.sh [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
arguments.js [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
bash-completion.sh [tools] Fix tools/bash-completion.sh for bool flags and harmony features 2015-12-10 10:01:39 +00:00
bigint-tester.py [bigint] Add tests for unary/binary ops 2017-10-23 19:11:01 +00:00
BUILD.gn [test] Add benchmarks to deopt-fuzzer and remove obsolete configs 2018-01-19 13:47:06 +00:00
callstats.html [tools] Update tools/callstats.* with the new background GC group. 2017-12-04 15:46:28 +00:00
callstats.py [tools] Update tools/callstats.* with the new background GC group. 2017-12-04 15:46:28 +00:00
check-inline-includes.sh [iwyu] Extend inline include checking to tests. 2017-09-08 09:31:32 +00:00
check-static-initializers.gyp [gyp] move gyp files from src to gypfiles. 2018-01-23 09:54:36 +00:00
check-static-initializers.isolate [swarming] Isolate static initializer check. 2016-01-08 12:58:30 +00:00
check-static-initializers.sh Reland^3 r22105 "Remove static initializer from isolate" 2014-07-07 10:56:36 +00:00
check-unused-bailouts.sh [tools] Speed-up check-unused-bailouts.sh 2017-08-02 11:11:19 +00:00
codemap.js [profiler] Graphical front-end for tick processor. 2017-03-04 13:04:58 +00:00
compare-table-gen.js Add more exhaustive tests for Math.min and Math.max. 2015-04-10 12:35:16 +00:00
concatenate-files.py Fix common misspellings 2017-08-02 09:35:28 +00:00
consarray.js Make sure files end with exactly one new line and police this in presubmit. 2013-11-22 13:50:39 +00:00
cpu.sh [tools] Allow specifying cores for cpu.sh script. 2015-11-18 10:53:30 +00:00
cross_build_gcc.sh Fix tools/cross_build_gcc.sh. 2014-02-20 16:37:40 +00:00
csvparser.js [log] Escape newline with \n 2017-11-03 16:41:39 +00:00
DEPS Add DEPS files and run checkdeps in presubmit check 2014-06-03 13:39:42 +00:00
detect-builtins.js [tools] Fix detect-builtins.js 2016-06-09 10:17:32 +00:00
disasm.py [grokdump] Include -z flag to make objdump disassemble all-zero sections 2017-04-21 13:35:37 +00:00
draw_instruction_graph.sh Rename A64 port to ARM64 port 2014-03-21 09:28:26 +00:00
dump-cpp.py [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
dumpcpp-driver.js [prof] Add slide offset in dumpcpp script 2016-05-30 08:56:59 +00:00
dumpcpp.js [prof] Add slide offset in dumpcpp script 2016-05-30 08:56:59 +00:00
eval_gc_nvp.py [tools] Compute percentiles for GC NVP 2016-04-08 12:05:59 +00:00
eval_gc_time.sh [Heap] Remove code flushing. 2017-05-22 09:34:43 +00:00
find_depot_tools.py Prototype for a client-side performance trybot script. 2014-11-18 14:40:00 +00:00
find-commit-for-patch.py Add tools/find-commit-for-patch.py 2014-12-16 14:25:00 +00:00
freebsd-tick-processor * Fix build errors on FreeBSD 8.2 2011-03-16 11:15:43 +00:00
fuzz-harness.sh [compiler] Make --debug-code the default in debug builds. 2016-12-02 11:36:55 +00:00
gc_nvp_common.py Clean up mark-compact phases and GC counter names. 2015-12-11 11:26:21 +00:00
gc-nvp-to-csv.py [tools] Add gc-nvp-to-csv.py script. 2015-06-19 10:40:47 +00:00
gc-nvp-trace-processor.py [tools] Add gc-nvp-to-csv.py script. 2015-06-19 10:40:47 +00:00
gcov.sh [test] Simplify flags for configuring testing variants. 2017-11-27 13:10:26 +00:00
gdb-v8-support.py [tools] Add redirect gdb helper 2017-11-24 16:55:16 +00:00
gdbinit Fix jlh gdb macro. 2017-12-06 19:42:23 +00:00
gen-inlining-tests.py [turbofan] Remove --turbo shorthand for --turbo-filter. 2017-06-23 11:19:19 +00:00
gen-postmortem-metadata.py [runtime] Cleanup Map fields and bit fields definitions. 2017-12-07 11:55:56 +00:00
generate-builtins-tests.py Add a script that can generate simple test cases for user-exposed JS builtins 2014-09-11 09:58:58 +00:00
generate-ten-powers.scm Fast double-to-ascii conversion. 2010-03-11 14:49:35 +00:00
grokdump.py [tools] Teach grokdump how to find objdumps in the third_party directory 2017-11-22 16:12:25 +00:00
gyp_flag_compare.py [gn] Let gyp/gn comparison be more verbose on error 2016-07-12 11:18:40 +00:00
ic-explorer.html [tools] Fix IC-Explorer drilldown and format file 2017-10-30 11:17:43 +00:00
ic-processor [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
ic-processor-driver.js [tools] Fix IC-Explorer drilldown and format file 2017-10-30 11:17:43 +00:00
ic-processor.js [ic-processor] Also print the slow_reason if present. 2017-10-30 08:31:45 +00:00
isolate_driver.py [swarming] Port updated version of isolate_driver.py 2016-07-06 14:21:12 +00:00
js2c.py Remove initial whitespace & empty lines to decrease JS files size 2017-12-19 00:04:19 +00:00
jsmin.py jsmin.py: Fix issue with escaping of back ticks 2015-06-24 22:29:46 +00:00
linux-tick-processor [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
ll_prof.py Fix annotated disassembly in ll_prof.py 2016-04-06 12:38:44 +00:00
lldb_commands.py [tools] add lldbinit 2017-03-27 06:44:15 +00:00
lldbinit [debugging] Add helper to print transition trees 2017-07-06 10:44:01 +00:00
logreader.js [tools/logreader] Print overflow drops to stderr 2017-03-17 13:42:14 +00:00
mac-nm [profiler] Graphical front-end for tick processor. 2017-03-04 13:04:58 +00:00
mac-tick-processor Implement shared libraries logging on Mac OS X, added required support in Tick Processor. 2009-07-14 05:01:06 +00:00
map-processor [tools] All new shiny maptracer.html 2017-12-18 12:48:00 +00:00
map-processor-driver.js [tools] All new shiny maptracer.html 2017-12-18 12:48:00 +00:00
map-processor.html [tools] All new shiny maptracer.html 2017-12-18 12:48:00 +00:00
map-processor.js [tools] All new shiny maptracer.html 2017-12-18 12:48:00 +00:00
mingw-generate-makefiles.sh [build] Move gyp folder 2016-04-27 12:37:35 +00:00
objdump-v8 [disasm] Make jump target printing perf friendly 2017-03-20 14:47:04 +00:00
OWNERS Add initial set of sub directory OWNERS file 2015-04-02 08:46:24 +00:00
parse-processor [tools] New parse processor tool 2017-12-20 13:07:17 +00:00
parse-processor-driver.js [tools] New parse processor tool 2017-12-20 13:07:17 +00:00
parse-processor.html [tools] New parse processor tool 2017-12-20 13:07:17 +00:00
parse-processor.js [tools] New parse processor tool 2017-12-20 13:07:17 +00:00
parser-shell.cc [cleanup] use unique_ptr for the DefaultPlatform 2017-11-14 09:57:18 +00:00
parser-shell.gyp [gyp] move gyp files from src to gypfiles. 2018-01-23 09:54:36 +00:00
perf-compare.py Reland "Reland "[test] Creating command before execution phase."" 2017-12-04 13:40:29 +00:00
perf-to-html.py Reland "Reland "[test] Creating command before execution phase."" 2017-12-04 13:40:29 +00:00
plot-timer-events [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
predictable_wrapper.py [test] Move predictable testing into a python wrapper 2017-12-08 14:46:10 +00:00
presubmit.py [test] Continuously run test-runner tests 2018-01-03 17:03:35 +00:00
profile_view.js Tick processor: improved [Summary] section 2014-08-04 08:31:49 +00:00
profile.js [profiler] Add script name to v8.log with --log-source-code. 2017-08-10 04:43:43 +00:00
run_perf.py Reland "Reland "[test] Creating command before execution phase."" 2017-12-04 13:40:29 +00:00
run-deopt-fuzzer.py TestRunner initial refactor 2017-10-13 08:52:28 +00:00
run-gc-fuzzer.py Temporary GC fuzzer. 2017-11-10 14:23:38 +00:00
run-llprof.sh Fix tools/run-llprof.sh to work with newer perf. 2014-10-09 06:01:41 +00:00
run-num-fuzzer.gyp [gyp] move gyp files from src to gypfiles. 2018-01-23 09:54:36 +00:00
run-num-fuzzer.isolate [test] Implement gc fuzzer with test processors 2018-01-19 16:58:49 +00:00
run-num-fuzzer.py [test] Implement gc fuzzer with test processors 2018-01-19 16:58:49 +00:00
run-perf.sh [tools] run-perf: ensure command line arguments are prepended 2016-10-05 15:15:38 +00:00
run-tests.py TestRunner initial refactor 2017-10-13 08:52:28 +00:00
run.py First cut at run_mksnapshot action for gn 2014-06-03 06:50:46 +00:00
shell-utils.h [presubmit] Enable readability/namespace linter checking. 2015-09-30 13:47:11 +00:00
SourceMap.js Add source map support to tick processor. 2013-08-23 17:20:54 +00:00
splaytree.js Remove support for logging into a memory buffer. 2011-07-13 11:31:22 +00:00
stats-viewer.py Fix common misspellings 2017-08-02 09:35:28 +00:00
tick-processor.html [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
tickprocessor-driver.js [tools] Add options to separate more entries in tickprocessor 2017-04-11 10:23:02 +00:00
tickprocessor.js [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00
trace-maps-processor.py Add FLAG_trace_maps 2014-11-07 16:03:44 +00:00
try_perf.py Add ability to trigger perf bots on swarming 2018-01-24 15:05:29 +00:00
turbolizer-perf.py [turbolizer] Fixed naming of turbolizer perf script. 2016-07-28 12:38:00 +00:00
v8heapconst.py [turbofan] Reduce promise creation overhead in async functions 2018-01-24 19:03:43 +00:00
whitespace.txt Whitespace change to test fuzzers 2018-01-19 11:25:43 +00:00
windows-tick-processor.bat [tools] Move common arguments processing into separate file 2017-10-24 00:25:04 +00:00