[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

Megamorphic keyed loads often load fast properties from the receiver
(as opposed to its prototype chain). They should avoid polluting the
stub cache for this.

Drive-by fix: --trace-ic printed two identical log lines for
KeyedLoadIC misses taking the LoadIC::Load path.

Committed: https://crrev.com/a767d8f956f5aa51dda4e325188610e1cbfc1b6f
Cr-Commit-Position: refs/heads/master@{#39684}

[Jakob Kummerow, 2016-09-22 22:27:51]

Description was changed from

==========
[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

Megamorphic keyed loads often load fast properties from the receiver
(as opposed to its prototype chain). They should avoid polluting the
stub cache for this.
==========

to

==========
[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

Megamorphic keyed loads often load fast properties from the receiver
(as opposed to its prototype chain). They should avoid polluting the
stub cache for this.

Drive-by fix: --trace-ic printed two identical log lines for KeyedLoadIC misses
taking the LoadIC::Load path.
==========

[Jakob Kummerow, 2016-09-22 22:28:11]

Description was changed from

==========
[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

Megamorphic keyed loads often load fast properties from the receiver
(as opposed to its prototype chain). They should avoid polluting the
stub cache for this.

Drive-by fix: --trace-ic printed two identical log lines for KeyedLoadIC misses
taking the LoadIC::Load path.
==========

to

==========
[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

Megamorphic keyed loads often load fast properties from the receiver
(as opposed to its prototype chain). They should avoid polluting the
stub cache for this.

Drive-by fix: --trace-ic printed two identical log lines for
KeyedLoadIC misses taking the LoadIC::Load path.
==========

[Jakob Kummerow, 2016-09-22 22:28:54]

jkummerow@chromium.org changed reviewers:
+ ishell@chromium.org

[Jakob Kummerow, 2016-09-22 22:28:55]

PTAL.

https://codereview.chromium.org/2358373002/diff/40001/src/code-stub-assembler.cc
File src/code-stub-assembler.cc (left):

https://codereview.chromium.org/2358373002/diff/40001/src/code-stub-assembler...
src/code-stub-assembler.cc:4401: Comment("stub cache probe for fast property
load");
All this has moved into the "Bind(&stub_cache)" block (lines 4438ff in new
code).

https://codereview.chromium.org/2358373002/diff/40001/src/code-stub-assembler.cc
File src/code-stub-assembler.cc (right):

https://codereview.chromium.org/2358373002/diff/40001/src/code-stub-assembler...
src/code-stub-assembler.cc:2876: void
CodeStubAssembler::DescriptorLookupLinear(Node* unique_name,
This is pulled out from below, unchanged.

[Igor Sheludko, 2016-09-23 16:08:19]

lgtm

[Jakob Kummerow, 2016-09-23 17:08:54]

The CQ bit was checked by jkummerow@chromium.org

[commit-bot: I haz the power, 2016-09-23 17:09:00]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-23 17:39:00]

Description was changed from

==========
[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

Megamorphic keyed loads often load fast properties from the receiver
(as opposed to its prototype chain). They should avoid polluting the
stub cache for this.

Drive-by fix: --trace-ic printed two identical log lines for
KeyedLoadIC misses taking the LoadIC::Load path.
==========

to

==========
[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

Megamorphic keyed loads often load fast properties from the receiver
(as opposed to its prototype chain). They should avoid polluting the
stub cache for this.

Drive-by fix: --trace-ic printed two identical log lines for
KeyedLoadIC misses taking the LoadIC::Load path.
==========

[commit-bot: I haz the power, 2016-09-23 17:39:01]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-09-23 17:39:23]

Description was changed from

==========
[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

Megamorphic keyed loads often load fast properties from the receiver
(as opposed to its prototype chain). They should avoid polluting the
stub cache for this.

Drive-by fix: --trace-ic printed two identical log lines for
KeyedLoadIC misses taking the LoadIC::Load path.
==========

to

==========
[stubs] KeyedLoadIC_Megamorphic: inline fast-property lookups

Megamorphic keyed loads often load fast properties from the receiver
(as opposed to its prototype chain). They should avoid polluting the
stub cache for this.

Drive-by fix: --trace-ic printed two identical log lines for
KeyedLoadIC misses taking the LoadIC::Load path.

Committed: https://crrev.com/a767d8f956f5aa51dda4e325188610e1cbfc1b6f
Cr-Commit-Position: refs/heads/master@{#39684}
==========

[commit-bot: I haz the power, 2016-09-23 17:39:24]

Patchset 3 (id:??) landed as
https://crrev.com/a767d8f956f5aa51dda4e325188610e1cbfc1b6f
Cr-Commit-Position: refs/heads/master@{#39684}