Reason for revert:
Regressed Sunspider.
Original issue's description:
> Avoid excessive GCs in small heaps.
>
> Small heaps and small heap growing factor can lead to excessive GCs in corner cases.
>
> Consider function F(old_gen_size, factor) that returns the number of bytes that
> have to be allocated in the old generation to start incremental marking.
>
> F(4MB, 1.1) = 4MB (because of kMinimumOldGenerationAllocationLimit)
> F(6MB, 1.1) = 2MB (because of kMinimumOldGenerationAllocationLimit)
> F(8MB, 1.1) = 800KB
>
> Funtion F should be monotonic in old_gen_size, but it currently has a minimum
> at kMinimumOldGenerationAllocationLimit.
>
> This CL makes F monotonic.
>
> BUG=
>
> Committed: https://crrev.com/22b1da99732b4db0754bf267ec470a2831216fb2
> Cr-Commit-Position: refs/heads/master@{#28549}
TBR=hpayer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review URL: https://codereview.chromium.org/1152533002
Cr-Commit-Position: refs/heads/master@{#28558}
Currently the stub simply calls out to the runtime, this will be
improved in a later CLs. The current state at least avoids bit-rot and
later merging horror.
Fixes frame construction logic for stubs, too, and contains quite a few
tiny cleanups in stub-land.
Review URL: https://codereview.chromium.org/1150673002
Cr-Commit-Position: refs/heads/master@{#28555}
Reason for revert:
Causes assertions to fire when serializing optimized code.
Original issue's description:
> Remove obsolete JSFunction::IsOptimizable predicate.
>
> This just delegates to SharedFunctionInfo::optimization_disabled and
> was primarily used for assertions. Removing it due to misleading name
> because already optimized functions reported being "non-optimizable".
>
> R=titzer@chromium.org
>
> Committed: https://crrev.com/181d7b85977eb752b19e1de902093783e31330ef
> Cr-Commit-Position: refs/heads/master@{#28551}
TBR=titzer@chromium.org,bmeurer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1148973005
Cr-Commit-Position: refs/heads/master@{#28554}
This just delegates to SharedFunctionInfo::optimization_disabled and
was primarily used for assertions. Removing it due to misleading name
because already optimized functions reported being "non-optimizable".
R=titzer@chromium.org
Review URL: https://codereview.chromium.org/1150683002
Cr-Commit-Position: refs/heads/master@{#28551}
The inliner previously assumed that there will only be returns reaching
the end node, but that's not true. This refactoring will make it
possible to also hook up Deoptimize, Throw and Terminate nodes reaching
end properly.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/1146393002
Cr-Commit-Position: refs/heads/master@{#28550}
Small heaps and small heap growing factor can lead to excessive GCs in corner cases.
Consider function F(old_gen_size, factor) that returns the number of bytes that
have to be allocated in the old generation to start incremental marking.
F(4MB, 1.1) = 4MB (because of kMinimumOldGenerationAllocationLimit)
F(6MB, 1.1) = 2MB (because of kMinimumOldGenerationAllocationLimit)
F(8MB, 1.1) = 800KB
Funtion F should be monotonic in old_gen_size, but it currently has a minimum
at kMinimumOldGenerationAllocationLimit.
This CL makes F monotonic.
BUG=
Review URL: https://codereview.chromium.org/1144223002
Cr-Commit-Position: refs/heads/master@{#28549}
This allows enabling TurboFan on a certain subset of language features
in the AstNumberingVisitor. The heuristics of when to optimize remain
unchanged, only the choice of which optimizing compiler to use changes.
R=bmeurer@chromium.org
BUG=v8:4131
LOG=N
Review URL: https://codereview.chromium.org/1155503002
Cr-Commit-Position: refs/heads/master@{#28544}
Replace the --turbo-deoptimization flag with --turbo-asm-deoptimization
and enable deoptimization for non-asm.js TurboFan code unconditionally.
R=jarin@chromium.org
Review URL: https://codereview.chromium.org/1153483002
Cr-Commit-Position: refs/heads/master@{#28543}
This should help to keep syntax errors from creeping into v8.h
Also, I'll remove usages of to-be-deprecated APIs and turn this flag on
for standalone builds
BUG=4134
R=vogelheim@chromium.org
LOG=n
Review URL: https://codereview.chromium.org/1149633003
Cr-Commit-Position: refs/heads/master@{#28538}
Sample new space allocation throughput at scavenge and at idle notificatioon.
This will allow better estimation of mutator idleness for switching between
latency and memory modes in idle notification handler.
BUG=chromium:486005
LOG=NO
TEST=cctest/test-heap/NewSpaceAllocationThroughput
Review URL: https://codereview.chromium.org/1125193005
Cr-Commit-Position: refs/heads/master@{#28537}
This allows you to put iterables into your array literals
and the will get spread into the array.
let x = [0, ...range(1, 3)]; // [0, 1, 2]
This is done by treating the array literal up to the first
spread element as usual, including using a boiler plate
array, and then appending the remaining expressions and rest
expressions.
BUG=v8:3018
LOG=N
Review URL: https://codereview.chromium.org/1125183008
Cr-Commit-Position: refs/heads/master@{#28534}
port 09aaf003a9 (r28516).
original commit message:
Also removed ornamentation like "VectorRaw" from stub names.
BUG=
Review URL: https://codereview.chromium.org/1152473003
Cr-Commit-Position: refs/heads/master@{#28532}
port 78f0452d31 (r28491)
original commit message:
Also check whether the arguments count is smaller than the number of
required parameters which is the same as the SharedFunctionInfo length.
BUG=
Review URL: https://codereview.chromium.org/1146103003
Cr-Commit-Position: refs/heads/master@{#28531}
Previously this patch was attempted with reduce and reduceRight included;
however, some of those tests crashed in the trybots. This version has
just map, fiter and some, together with their tests.
R=arv@chromium.org
BUG=v8:3578
LOG=Y
Review URL: https://codereview.chromium.org/1145013002
Cr-Commit-Position: refs/heads/master@{#28529}
This flag mostly duplicates SharedFunctionInfo::optimization_disabled
and is only queried in places where the original is available. Remove
the brittle and error-prone duplication.
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/1148043002
Cr-Commit-Position: refs/heads/master@{#28520}
