PPC/s390: [wasm] Separate compilation from instantiation

PPC/s390: [wasm] Separate compilation from instantiation

Port c1d01aea117c62759cc2be1805493ed59218558c

Original commit message:

    Compilation of wasm functions happens before instantiation. Imports are linked afterwards, at instantiation time. Globals and memory are also
    allocated and then tied in via relocation at instantiation time.

    This paves the way for implementing Wasm.compile, a prerequisite to
    offering the compiled code serialization feature.

    Currently, the WasmModule::Compile method just returns a fixed array
    containing the code objects. More appropriate modeling of the compiled module to come.

    Opportunistically centralized the logic on how to update memory
    references, size, and globals, since that logic is the exact same on each
    architecture, except for the actual storing of values back in the
    instruction stream.

R=mtrofin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=v8:5072
LOG=N

Committed: https://crrev.com/8071e21ce5ce133d91ab749cd7f9bde189cdddb6
Cr-Commit-Position: refs/heads/master@{#37116}

[JaideepBajwa, 2016-06-20 15:41:07]

PTAL

[Mircea Trofin, 2016-06-20 15:42:27]

On 2016/06/20 15:41:07, JaideepBajwa wrote:
> PTAL

lgtm

[john.yan, 2016-06-20 18:46:15]

lgtm

[JaideepBajwa, 2016-06-20 18:46:48]

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

[commit-bot: I haz the power, 2016-06-20 18:46:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2087453002/1

[commit-bot: I haz the power, 2016-06-20 19:09:28]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-20 19:12:15]

Description was changed from

==========
PPC/s390: [wasm] Separate compilation from instantiation

Port c1d01aea117c62759cc2be1805493ed59218558c

Original commit message:

    Compilation of wasm functions happens before instantiation. Imports are
linked afterwards, at instantiation time. Globals and memory are also
    allocated and then tied in via relocation at instantiation time.

    This paves the way for implementing Wasm.compile, a prerequisite to
    offering the compiled code serialization feature.

    Currently, the WasmModule::Compile method just returns a fixed array
    containing the code objects. More appropriate modeling of the compiled
module to come.

    Opportunistically centralized the logic on how to update memory
    references, size, and globals, since that logic is the exact same on each
    architecture, except for the actual storing of values back in the
    instruction stream.

R=mtrofin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=v8:5072
LOG=N
==========

to

==========
PPC/s390: [wasm] Separate compilation from instantiation

Port c1d01aea117c62759cc2be1805493ed59218558c

Original commit message:

    Compilation of wasm functions happens before instantiation. Imports are
linked afterwards, at instantiation time. Globals and memory are also
    allocated and then tied in via relocation at instantiation time.

    This paves the way for implementing Wasm.compile, a prerequisite to
    offering the compiled code serialization feature.

    Currently, the WasmModule::Compile method just returns a fixed array
    containing the code objects. More appropriate modeling of the compiled
module to come.

    Opportunistically centralized the logic on how to update memory
    references, size, and globals, since that logic is the exact same on each
    architecture, except for the actual storing of values back in the
    instruction stream.

R=mtrofin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=v8:5072
LOG=N

Committed: https://crrev.com/8071e21ce5ce133d91ab749cd7f9bde189cdddb6
Cr-Commit-Position: refs/heads/master@{#37116}
==========

[commit-bot: I haz the power, 2016-06-20 19:12:17]

Patchset 1 (id:??) landed as
https://crrev.com/8071e21ce5ce133d91ab749cd7f9bde189cdddb6
Cr-Commit-Position: refs/heads/master@{#37116}