v8/test
bmeurer 6d38f89d26 [turbofan] Boost performance of Array.prototype.shift by 4x.
For small arrays, it's way faster to just move the elements instead of
doing the fairly complex and heavy-weight left-trimming. Crankshaft has
had this optimization for small arrays already; this CL more or less
ports this functionality to TurboFan, which yields a 4x speed-up when
using shift on small arrays (with up to 16 elements).

This should recover some of the regressions reported in the Node.js issues

  https://github.com/nodejs/node/issues/12657

and discovered for the syncthrough module using

  https://github.com/mcollina/syncthrough/blob/master/benchmarks/basic.js

as benchmark.

R=jarin@chromium.org
BUG=v8:6376

Review-Url: https://codereview.chromium.org/2874453002
Cr-Commit-Position: refs/heads/master@{#45216}
2017-05-10 05:48:21 +00:00
..
benchmarks Use --opt instead of --crankshaft in tests. 2017-04-28 14:20:39 +00:00
cctest Unify implementations of Map handles vectors and lists 2017-05-09 22:36:00 +00:00
common [wasm] Fix memory management for Result types 2017-05-08 14:26:57 +00:00
debugger Revert "Reland "Introducing an event loop mechanism for d8."" 2017-05-10 04:50:19 +00:00
fuzzer [cleanup][wasm][fuzzer] Share code among the different fuzzers. 2017-05-08 09:58:26 +00:00
inspector [inspector] use creation stack trace as parent for async call chains 2017-05-09 14:43:15 +00:00
intl Handle private / grandfathered tags gracefully for case-conversion 2017-05-04 22:40:42 +00:00
js-perf-test [js-perf-tests] Fix PropertyQueries test for fast-delete 2017-05-05 15:57:36 +00:00
memory [snapshot] support multiple contexts in the same snapshot. 2016-06-15 15:39:06 +00:00
message [asm.js] Fix validation failure in module variable import. 2017-05-05 11:39:06 +00:00
mjsunit [turbofan] Boost performance of Array.prototype.shift by 4x. 2017-05-10 05:48:21 +00:00
mkgrokdump Introduce mkgrokdump to update tools/v8heapconst.py. 2017-04-20 06:15:02 +00:00
mozilla [asm.js] Widen test coverage to cctest and friends. 2017-03-28 08:00:40 +00:00
preparser [gn] Move build to gypfiles 2016-04-29 10:11:11 +00:00
promises-aplus Make test262 test runner check for which exception is thrown 2016-03-14 21:20:37 +00:00
test262 resolvedTimezone for Etc/UTC should be UTC per Ecma 402 2017-05-04 21:17:39 +00:00
unittests Make ICU a public dep of v8_base when building with i18n support 2017-05-09 13:53:10 +00:00
wasm-spec-tests [test] Skip slow tests 2017-04-28 07:38:13 +00:00
webkit [asm.js] Widen test coverage to message tests. 2017-03-29 08:42:32 +00:00
bot_default.gyp [wasm] Add wasm spec tests to the v8 test runner 2017-04-27 13:00:13 +00:00
bot_default.isolate [wasm] Add wasm spec tests to the v8 test runner 2017-04-27 13:00:13 +00:00
BUILD.gn [wasm] Add wasm spec tests to the v8 test runner 2017-04-27 13:00:13 +00:00
default.gyp [wasm] Add wasm spec tests to the v8 test runner 2017-04-27 13:00:13 +00:00
default.isolate [wasm] Add wasm spec tests to the v8 test runner 2017-04-27 13:00:13 +00:00
optimize_for_size.gyp [gn] Move build to gypfiles 2016-04-29 10:11:11 +00:00
optimize_for_size.isolate [debugger] basic test infrastructure for new debugger test api. 2016-10-21 06:38:05 +00:00
perf.gyp [gn] Move build to gypfiles 2016-04-29 10:11:11 +00:00
perf.isolate Remove SIMD.js from V8. 2017-02-14 06:57:25 +00:00