Second attempt at introducing a premonomorphic state in the call

Second attempt at introducing a premonomorphic state in the call
target caches.

This time we don't go through the premonomorphic state for
the Array call target caches to avoid losing information from
allocation sites that aren't only used once, but where the
resulting array is used heavily.

R=mvstanton@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=19457

[kasperl, 2014-02-17 15:24:41]

This isn't really ready for committing yet. I've only fixed the ia32 version.

We could try to run benchmarks on this one while I port the fix to the other
architectures (if it looks good to you).

[mvstanton, 2014-02-17 15:35:46]

I'd say it looks okay, the sunspider fasta test and octane gameboy were affected
before, perhaps check those on ia32...

[mvstanton, 2014-02-17 15:35:46]

I'd say it looks okay, the sunspider fasta test and octane gameboy were affected
before, perhaps check those on ia32...

[kasperl, 2014-02-18 08:31:57]

Uploaded the missing x64, arm, and a64 ports. This is now ready for a proper
review.

https://codereview.chromium.org/169683003/diff/130001/src/a64/code-stubs-a64.cc
File src/a64/code-stubs-a64.cc (right):

https://codereview.chromium.org/169683003/diff/130001/src/a64/code-stubs-a64....
src/a64/code-stubs-a64.cc:3212: __ JumpIfRoot(x4, kMegamorphicRootIndex, &done);
I think this was missing before.

https://codereview.chromium.org/169683003/diff/130001/src/arm/code-stubs-arm.cc
File src/arm/code-stubs-arm.cc (right):

https://codereview.chromium.org/169683003/diff/130001/src/arm/code-stubs-arm....
src/arm/code-stubs-arm.cc:3034: __ CompareRoot(r4, kMegamorphicRootIndex);
I think this was missing before.

[mvstanton, 2014-02-18 15:22:52]

lgtm. I'll land on your behalf.

https://codereview.chromium.org/169683003/diff/180001/src/runtime.cc
File src/runtime.cc (right):

https://codereview.chromium.org/169683003/diff/180001/src/runtime.cc#newcode1...
src/runtime.cc:14765: *type_info != isolate->heap()->null_value() &&
good catch!

[mvstanton, 2014-02-18 15:34:27]

Committed patchset #3 manually as r19457 (presubmit successful).