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90a66422b7
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Seth Brenith 90a66422b7 Remove 'length' field from ScopeInfo 
This change relands the last part of https://crrev.com/c/2601880 .

ScopeInfo has a vestigial 'length' field from when it used to be a
FixedArray. This change removes that field, which saves some memory.

More specifically:

- Make ScopeInfo inherit from HeapObject, not FixedArrayBase which
  supplied the 'length' field.
- Change FactoryBase::NewScopeInfo to allocate the updated object shape.
  It maintains the existing behavior of filling the newly-allocated
  object with undefined, even though that's not a valid ScopeInfo and
  further initialization is required.
- Change a few length computations to use HeapObject::kHeaderSize rather
  than FixedArray::kHeaderSize.
- Remove an unnecessary heap verifier function.

Change-Id: I9b3980157568fdb0402fa31660949966b401fd31
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2733037
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#73278}
2021-03-08 20:03:47 +00:00
..
blink_tests [test] Remove obsolete blink test skips 2019-01-18 12:30:23 +00:00
cfi [cfi] Use inclusive terminology 2020-07-28 05:57:41 +00:00
clusterfuzz [test] Temporarily drop no-sse flags from differential fuzzing 2021-02-12 15:29:46 +00:00
cppgc cppgc: mirror: Add copybara and migration scripts 2020-07-29 11:53:33 +00:00
debug_helper [build] Create v8_internal_headers target 2021-03-01 16:30:22 +00:00
dev [gm.py] Fix goma detection 2021-03-04 15:36:36 +00:00
gcmole [no-wasm] Remove wasm debugging support 2021-03-02 18:27:53 +00:00
generate_shim_headers Add dependency to ICU 4.6 2013-07-01 08:32:41 +00:00
heap-stats Revert "[objects] Remove uncached internal external string type" 2021-01-15 19:48:34 +00:00
ignition Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
jsfunfuzz [test] update the jsfunfuzz archive in Google Storage 2018-12-18 15:00:35 +00:00
link_clicker.extension [tools] Add link_click chrome extension 2017-05-09 15:25:21 +00:00
mb [tools] Use CAS in 'mb.py run -s' 2021-01-19 16:59:01 +00:00
memory [tools] Clean up insensitive terms 2020-12-01 20:02:48 +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 Remove android_tools deps for v8 repo 2019-07-03 17:59:11 +00:00
perf [tools] Refactor patch/no-patch terminology in run_perf.py 2017-11-22 07:19:50 +00:00
profview [tools,turboprop] Extend profview to show turboprop information 2020-12-07 10:17:25 +00:00
release [presubmit] Clean up insensitive terms 2020-07-27 18:05:48 +00:00
sanitizers [respect] Stop using "blacklist" in several python tools 2020-07-10 19:11:36 +00:00
snapshot Fix a Python3 compatibility issue in asm_to_inline_asm.py. 2020-08-03 22:21:55 +00:00
system-analyzer [tools] Revamp callstats.html 2021-03-02 14:49:02 +00:00
testrunner [mips] Skip all Simd tests on MIPS like PPC 2021-02-26 04:23:06 +00:00
toolchain [build] Add support for the other MIPS architectures 2018-03-19 10:43:07 +00:00
torque [torque] fix formatting of derefence and addressof operators 2020-07-16 10:17:35 +00:00
tracing/proto-converter [tracing] Add the proto to json converter for trace events 2019-03-25 08:56:18 +00:00
turbolizer [turbolizer] Display live range uses 2020-06-02 15:04:11 +00:00
ubsan [ubsan] Make ARM and ARM64 UBSan-clean 2019-09-16 15:03:45 +00:00
unittests [no-wasm] Skip wasm tests if wasm is disabled 2021-02-22 11:06:40 +00:00
v8.xcodeproj Add support for building Xcode project files from GYP files 2011-06-09 09:07:17 +00:00
v8windbg [config] Add V8_NODISCARD for Scope classes 2020-11-26 11:08:45 +00:00
valgrind/asan [build] Add testrunner data deps 2018-03-26 12:17:08 +00:00
vim [vim] Update CrBuild to use autoninja. 2019-05-27 06:27:29 +00:00
visual_studio Remove the Visual Studio project files 2011-05-02 13:43:13 +00:00
wasm Revert "[wasm][eh] Stage exception handling" 2021-02-24 17:38:25 +00:00
wasm-compilation-hints [wasm] Update OWNERS 2020-01-08 14:56:06 +00:00
zone-stats [zone-stats] Show all zones in a filter 2020-09-09 16:16:11 +00:00
__init__.py [test] make python recognize tools and tools/unittests as packages 2018-12-17 12:12:43 +00:00
adb-d8.py Remove JS natives support, step 3 2019-10-22 07:48:05 +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 Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
android-sync.sh [mjsunit][tools] Sync module files for tests 2020-10-07 12:45:19 +00:00
arguments.mjs [tools] Modernize tools .mjs files 2020-11-10 12:32:26 +00:00
avg.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
bash-completion.sh Move remaining files in src/ 2019-05-24 18:24:36 +00:00
bigint-tester.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
BUILD.gn [tools] Add v8windbg, a WinDbg extension for V8 2020-02-18 19:16:18 +00:00
callstats_groups.py [tools] Add grouping to generate-runtime-callstats.py 2019-12-12 14:52:05 +00:00
callstats-from-telemetry.sh [Tools] Improve callstats.html .txt file handling 2021-01-28 10:37:09 +00:00
callstats.html [tools] Revamp callstats.html 2021-03-02 14:49:02 +00:00
callstats.py [callstats] relocate the vpython imports 2020-02-27 14:45:56 +00:00
callstats.py.vpython [tools] Fix platform specification for scipi 2018-08-17 18:49:49 +00:00
check-inline-includes.sh [iwyu] Extend inline include checking to tests. 2017-09-08 09:31:32 +00:00
check-static-initializers.sh Bump expected static initializers count from 2 to 3 2021-02-12 09:47:44 +00:00
check-unused-bailouts.sh [tools] Speed-up check-unused-bailouts.sh 2017-08-02 11:11:19 +00:00
check-unused-symbols.sh [cleanup] Remove unused heap-symbols and add tool. 2018-11-08 17:57:05 +00:00
codemap.mjs [tools] System-analyzer improvements 2020-12-09 09:53:18 +00:00
collect_deprecation_stats.sh [objects] Deprecate GetIsolate/Heap behind a flag 2018-06-01 15:19:21 +00:00
compare_torque_output.py [torque] Add support for torque output comparison 2020-01-21 14:39:04 +00:00
compare-table-gen.js Add more exhaustive tests for Math.min and Math.max. 2015-04-10 12:35:16 +00:00
consarray.mjs [tools] Migrate more tools to ES6 classes 2021-01-11 16:40:39 +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.mjs [tools] Add api events timeline-track to system-analyzer 2020-12-05 10:49:42 +00:00
deprecation_stats.py [tools] Update deprecation_stats.py 2021-01-07 10:07:53 +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] Convert JS-tools to ES6 modules 2020-09-28 14:40:18 +00:00
dumpcpp-driver.mjs [tools] Modernize tools .mjs files 2020-11-10 12:32:26 +00:00
dumpcpp.mjs [tools] Migrate more tools to ES6 classes 2021-01-11 16:40:39 +00:00
eval_gc_nvp.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
eval_gc_time.sh [in-place weak refs] Remove WeakCell 2018-08-14 08:05:05 +00:00
find_depot_tools.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
find-commit-for-patch.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +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 Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gc-nvp-trace-processor.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gdb-v8-support.py [tools] Fix gdb redirect command 2020-03-03 10:33:33 +00:00
gdbinit [objects] Delete double field unboxing 2021-02-11 17:24:15 +00:00
gen-inlining-tests.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
gen-keywords-gen-h.py [parser] Remove #line directives from keywords-gen.h 2018-11-28 15:22:05 +00:00
gen-postmortem-metadata.py Update V8 postmortem metadata script 2020-12-10 16:09:08 +00:00
gen-v8-gn.py [Py3] fix py3 issue in tools 2021-01-25 15:33:53 +00:00
generate-builtins-tests.py [respect] Stop using "blacklist" in several python tools 2020-07-10 19:11:36 +00:00
generate-header-include-checks.py Add RISC-V backend 2021-02-09 17:06:36 +00:00
generate-runtime-call-stats.py [tools] Fix retention of json files in RCS script 2020-03-26 12:07:56 +00:00
generate-ten-powers.scm Fast double-to-ascii conversion. 2010-03-11 14:49:35 +00:00
get_landmines.py [landmines] Force clean build to fix Misc V8 Linux gcc 2019-06-06 21:52:11 +00:00
grokdump.py [objects] Delete double field unboxing 2021-02-11 17:24:15 +00:00
ic-processor [tools] Convert JS-tools to ES6 modules 2020-09-28 14:40:18 +00:00
ic-processor-driver.mjs [tools] Fix ic-processor-driver.mjs 2021-01-08 09:55:01 +00:00
index.html [tools] Remove outdated ic-processor 2020-10-27 14:21:45 +00:00
linux-tick-processor [tools] Port more tools to ES6 classes 2020-11-04 14:45:41 +00:00
ll_prof.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
lldb_commands.py [objects] Delete double field unboxing 2021-02-11 17:24:15 +00:00
locs.py [tools] Use ThreadPoolExecutor with reasonable job count default 2019-04-08 10:41:46 +00:00
logreader.mjs [tools] Migrate more tools to ES6 classes 2021-01-11 16:40:39 +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
Makefile.tags [Makefile] Move tags generation to standalone Makefile 2018-01-26 12:03:32 +00:00
objdump-v8 [disasm] Make jump target printing perf friendly 2017-03-20 14:47:04 +00:00
OWNERS Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
parse-processor [tools] Convert JS-tools to ES6 modules 2020-09-28 14:40:18 +00:00
parse-processor-driver.mjs [tools] Modernize tools .mjs files 2020-11-10 12:32:26 +00:00
parse-processor.html [tools] Prepare parse-processor for baseline compiler 2021-02-22 10:51:00 +00:00
parse-processor.mjs [tools] Prepare parse-processor for baseline compiler 2021-02-22 10:51:00 +00:00
perf-compare.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
predictable_wrapper.py [Py3] Get python scripts in tools closer to Py3 2020-06-29 16:55:16 +00:00
PRESUBMIT.py [presubmit] Clean up insensitive terms 2020-07-27 18:05:48 +00:00
profile_view.js Tick processor: improved [Summary] section 2014-08-04 08:31:49 +00:00
profile_view.mjs [tools] Modernize tools .mjs files 2020-11-10 12:32:26 +00:00
profile.mjs [sparkplug] Change Sparkplug to Baseline 2021-02-12 13:51:35 +00:00
regexp-sequences.py Preparing v8 to use with python3 2019-10-18 13:10:56 +00:00
run_perf.py [test] Make finding build directory more flexible 2020-09-28 12:38:16 +00:00
run-clang-tidy.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +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.py [Py3] Get python scripts in tools closer to Py3 2020-06-29 16:55:16 +00:00
run-perf.sh [cleanup] Replace underscore by minus in d8 flags 2019-04-03 12:32:08 +00:00
run-tests.py [Py3] Get python scripts in tools closer to Py3 2020-06-29 16:55:16 +00:00
run-wasm-api-tests.py [wasm-c-api] Roll 7865f7d: Expose possible traps during Instance::make 2019-08-23 09:46:29 +00:00
run.py Show failure codes in run.py 2020-06-17 17:16:22 +00:00
shell-utils.h Move remaining files in src/ 2019-05-24 18:24:36 +00:00
sourcemap.mjs [tools] Modernize tools .mjs files 2020-11-10 12:32:26 +00:00
splaytree.mjs [tools] Migrate more tools to ES6 classes 2021-01-11 16:40:39 +00:00
stats-viewer.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
test262-results-parser.js test262 roll 2018-08-28 21:18:23 +00:00
tick-processor.html [tools] Convert JS-tools to ES6 modules 2020-09-28 14:40:18 +00:00
tickprocessor-driver.mjs [tools] Modernize tools .mjs files 2020-11-10 12:32:26 +00:00
tickprocessor.mjs [tools] Fix whitespace 2021-02-03 15:42:11 +00:00
try_perf.py [tools] Add support for --confidence-level flag to tools/try_perf.py 2019-06-14 12:33:49 +00:00
turbolizer-perf.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
update-object-macros-undef.py Preparing v8 to use with python3 /tools 2019-02-19 09:12:07 +00:00
v8_presubmit.py [tools] Format JS files in system-analyzer/ if they're unformatted 2020-11-10 11:02:32 +00:00
v8heapconst.py Remove 'length' field from ScopeInfo 2021-03-08 20:03:47 +00:00
whitespace.txt Whitespace change to trigger bots 2021-02-15 09:15:36 +00:00
windbg.js [heap] Add base class for LargeObjectSpaces 2019-10-25 09:22:57 +00:00
windows-tick-processor.bat [tools] Use .mjs in windows-tick-processor.bat 2021-01-07 09:00:23 +00:00
wpr.wprp Step 1 (of 3-ish): Basic ETW Instrumentation in V8 2021-01-05 20:11:03 +00:00