The type feedback vector makes this easy to do.
This is a re-land of https://codereview.chromium.org/868453005/
with a fix for the DCHECK failure.

Review URL: https://codereview.chromium.org/885593002

Cr-Commit-Position: refs/heads/master@{#26302}

Revert of Continue learning for calls in optimized code when we have no type feedback. (patchset #4 id:60001 of https://codereview.chromium.org/868453005/)

Reason for revert:
Serializer tests broke. Need to debug and fix.

Original issue's description:
> Continue learning for calls in optimized code when we have no type feedback.
>
> Based on CL https://codereview.chromium.org/871063002/ which needs to land first.
>
> BUG=
>
> Committed: https://crrev.com/f5f2692b5ff70ac3cd06a903b7846174b97a2e55
> Cr-Commit-Position: refs/heads/master@{#26292}

TBR=verwaest@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/878103002

Cr-Commit-Position: refs/heads/master@{#26293}

Based on CL https://codereview.chromium.org/871063002/ which needs to land first.

BUG=

Review URL: https://codereview.chromium.org/868453005

Cr-Commit-Position: refs/heads/master@{#26292}

R=verwaest@chromium.org

Committed: https://crrev.com/622be8f71e70b6ece4ea6a89bcfa1bc4be5e70c1
Cr-Commit-Position: refs/heads/master@{#26159}

Review URL: https://codereview.chromium.org/860003002

Cr-Commit-Position: refs/heads/master@{#26235}

Revert of [x86] Use AVX in Crankshaft when available. (patchset #1 id:1 of https://codereview.chromium.org/860003002/)

Reason for revert:
Breaks chromium vista and XP browser tests:
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_vista_rel_ng/builds/23

Original issue's description:
> [x86] Use AVX in Crankshaft when available.
>
> R=verwaest@chromium.org
>
> Committed: https://crrev.com/622be8f71e70b6ece4ea6a89bcfa1bc4be5e70c1
> Cr-Commit-Position: refs/heads/master@{#26159}

TBR=verwaest@chromium.org,bmeurer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/863423002

Cr-Commit-Position: refs/heads/master@{#26230}

TEST=mjsunit,cctest,unittests
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/863633002

Cr-Commit-Position: refs/heads/master@{#26180}

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/860003002

Cr-Commit-Position: refs/heads/master@{#26159}

This patch finally allows running and passing tests with vector-based
Load and KeyedLoad ICs.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/767743002

Cr-Commit-Position: refs/heads/master@{#25800}

It has been turned on by default for a long time, and hydrogenized BinaryOpStubs actually depend on it being turned on.

BUG=v8:3487
LOG=n
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/630023002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/618643002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24319 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/596783002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24161 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/551803005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23969 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

of code stubs are too complex to be described this way, and
they are encoded with the macro
DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR().

Along the way:
* allowed inheritance of CallInterfaceDescriptors.
* Defined static Register methods for some of the new
  CallInterfaceDescriptors. We could go a lot further here, but
  it doesn't have to be done immediately.
* Added Representation arrays to some CallInterfaceDescriptors,
  especially where future hydrogen versions of the stubs could
  benefit from this knowledge.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/551043005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23854 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/552803002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23778 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/553833002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23773 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

the megamorphic load case in hydrogen. A simple approach is to
wrap the probe activity in a hydrogen instruction.

The instruction is novel in that it always tail-calls away.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/535873002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23772 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/553843002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23767 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/544123002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23744 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Make concrete classes for individual call descriptors. The ic-convention classes that hold register specifications are merged into these new call descriptor classes, which should represent a final home for that information.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/527093002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23639 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

There was no difference between these two classes in a hierarchical
relationship.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/532473002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23560 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This adds context deoptimization to Turbofan and Crankshaft (also submitted separately as https://codereview.chromium.org/515723004/).

The second patchset removes the deoptimization/continuation block from calls.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/522873002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23547 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A change to a convention shouldn't require recompilation of ic.h/.cc.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/486213003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This way we don't clash with the ASSERT* macros
defined by GoogleTest, and we are one step closer
to being able to replace our homegrown base/ with
base/ from Chrome.

R=jochen@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/430503007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22812 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
TEST=mozilla (with new --always-opt)

Review URL: https://codereview.chromium.org/423093009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22803 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/426233002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=v8:3469
LOG=N

Review URL: https://codereview.chromium.org/425943002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22665 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

When FLAG_vector_ics is true, then AST nodes that use Load and KeyedLoad ICs
will allocate a type vector slot to store feedback information. Full codegen
will emit a load of the slot into a register if the flag is on.

Support is incomplete, right now the IC doesn't know how to use the feedback
slot.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/398053002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22500 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

StubCallInterfaceDescriptor and CallInterfaceDescriptor are unified under a base class InterfaceDescriptor.

Handling of the context register had to be massaged to effect the unification. This will make it easier to call hydrogen code stubs directly from crankshaft.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/384403002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22448 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This continues refactoring already applied for LoadIC in r22035 (https://code.google.com/p/v8/source/detail?r=22035).

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/381633002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is a mostly mechanical CL (more than 90% Emacs macros and
query-replace-regexp) moving FILE*/StringStream*-based APIs to
OStream-based APIs. There are a few places where this had to stop,
otherwise the CL would be even bigger, but this can easily and
incrementally cleaned up later.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/363323003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22232 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

On arm, arm64 and x64 there is a different register specification between LoadIC and KeyedLoadIC.

It would be nicer if these are the same, allowing some key optimizations.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/338963003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22103 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/356713003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22035 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/333013002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21894 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Patch from Steven Keuchel <keuchel@chromium.org>

BUG=v8:2198
LOG=N
TEST=mjsunit/harmony/block-let-crankshaft.js
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/307593002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- this avoids using relative include paths which are forbidden by the style guide
- makes the code more readable since it's clear which header is meant
- allows for starting to use checkdeps

BUG=none
R=jkummerow@chromium.org, danno@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/304153016

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=mjsunit/array-shift,mjsunit/array-shift2,mjsunit/array-shift3
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/308793010

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21592 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/308593003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21589 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- Move HType to it's own file.
- Add HType::HeapObject and some other useful types.
- Get rid of the broken and useless HType::NonPrimitive.
- Introduce HType::FromType() to convert from HeapType to HType.
- Also add unit tests for HType.
- Fix types in Crankshaft.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/300893003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21578 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This way an HStoreNamedField instruction can never deoptimize
itself, which is another important step towards a working
store elimination.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/299373005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21509 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/299423005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21505 ce2b1a6d-e550-0410-aec6-3dcde31c8c00