PPC/s390: Reland: [TypeFeedbackVector] Store optimized code in the vector

PPC/s390: Reland: [TypeFeedbackVector] Store optimized code in the vector

Port 662aa425bac00f468d2b2e91a149b5f35e2a4ad3

Original Commit Message:

    Since the feedback vector is itself a native context structure, why
    not store optimized code for a function in there rather than in
    a map from native context to code? This allows us to get rid of
    the optimized code map in the SharedFunctionInfo, saving a pointer,
    and making lookup of any optimized code quicker.

    Original patch by Michael Stanton <mvstanton@chromium.org>;

R=rmcilroy@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:6246
LOG=N

Review-Url: https://codereview.chromium.org/2861863003
Cr-Commit-Position: refs/heads/master@{#45111}
Committed: https://chromium.googlesource.com/v8/v8/+/d587812258c232f7b9a1f1a9a017ba3f9cea12ea

[JaideepBajwa, 2017-05-04 15:54:05]

ptal

[john.yan, 2017-05-04 16:40:08]

lgtm

[JaideepBajwa, 2017-05-04 18:30:27]

The CQ bit was checked by bjaideep@ca.ibm.com

[commit-bot: I haz the power, 2017-05-04 18:30:36]

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, 2017-05-04 19:02:27]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1493922627906380, "parent_rev":
"c6540ab1b75ff33aaf20949c90412a1610f324b5", "commit_rev":
"d587812258c232f7b9a1f1a9a017ba3f9cea12ea"}

[commit-bot: I haz the power, 2017-05-04 19:02:33]

Description was changed from

==========
PPC/s390: Reland: [TypeFeedbackVector] Store optimized code in the vector

Port 662aa425bac00f468d2b2e91a149b5f35e2a4ad3

Original Commit Message:

    Since the feedback vector is itself a native context structure, why
    not store optimized code for a function in there rather than in
    a map from native context to code? This allows us to get rid of
    the optimized code map in the SharedFunctionInfo, saving a pointer,
    and making lookup of any optimized code quicker.

    Original patch by Michael Stanton <mvstanton@chromium.org>

R=rmcilroy@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=v8:6246
LOG=N
==========

to

==========
PPC/s390: Reland: [TypeFeedbackVector] Store optimized code in the vector

Port 662aa425bac00f468d2b2e91a149b5f35e2a4ad3

Original Commit Message:

    Since the feedback vector is itself a native context structure, why
    not store optimized code for a function in there rather than in
    a map from native context to code? This allows us to get rid of
    the optimized code map in the SharedFunctionInfo, saving a pointer,
    and making lookup of any optimized code quicker.

    Original patch by Michael Stanton <mvstanton@chromium.org>

R=rmcilroy@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=v8:6246
LOG=N

Review-Url: https://codereview.chromium.org/2861863003
Cr-Commit-Position: refs/heads/master@{#45111}
Committed:
https://chromium.googlesource.com/v8/v8/+/d587812258c232f7b9a1f1a9a017ba3f9ce...
==========

[commit-bot: I haz the power, 2017-05-04 19:02:34]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/d587812258c232f7b9a1f1a9a017ba3f9ce...

[JaideepBajwa, 2017-05-09 03:20:57]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2870703003/ by bjaideep@ca.ibm.com.

The reason for reverting is: Original CL reverted.
Crashing on Canary
BUG=chromium:718891.