MIPS: [compiler] Add relocatable pointer constants for wasm memory references.

MIPS: [compiler] Add relocatable pointer constants for wasm memory references.

Add relocatable pointers for wasm memory references that need to be
updated when wasm GrowMemory is used. Code generator changes to accept
relocatable constants as immediates.

Port 52148c41c948f4e70778de758fb1a0ae118cecc2

TEST=
BUG=

Committed: https://crrev.com/ec5995a1049375dcd0df1fb9bb7d7351edb98112
Cr-Commit-Position: refs/heads/master@{#35450}

[Ilija.Pavlovic1, 2016-04-13 12:25:38]

ilija.pavlovic@imgtec.com changed reviewers:
+ akos.palfi@imgtec.com, balazs.kilvady@imgtec.com, gergely.kis@imgtec.com,
ivica.bogosavljevic@imgtec.com, marija.antic@imgtec.com, miran.karic@imgtec.com

[Ilija.Pavlovic1, 2016-04-13 12:25:39]

PTAL

[akos.palfi.imgtec, 2016-04-13 14:55:55]

LGTM

[Ilija.Pavlovic1, 2016-04-13 15:02:03]

The CQ bit was checked by ilija.pavlovic@imgtec.com

[commit-bot: I haz the power, 2016-04-13 15:02:07]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1886723003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1886723003/1

[commit-bot: I haz the power, 2016-04-13 15:21:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-13 15:22:44]

Description was changed from

==========
MIPS: [compiler] Add relocatable pointer constants for wasm memory references.

Add relocatable pointers for wasm memory references that need to be
updated when wasm GrowMemory is used. Code generator changes to accept
relocatable constants as immediates.

Port 52148c41c948f4e70778de758fb1a0ae118cecc2

TEST=
BUG=
==========

to

==========
MIPS: [compiler] Add relocatable pointer constants for wasm memory references.

Add relocatable pointers for wasm memory references that need to be
updated when wasm GrowMemory is used. Code generator changes to accept
relocatable constants as immediates.

Port 52148c41c948f4e70778de758fb1a0ae118cecc2

TEST=
BUG=

Committed: https://crrev.com/ec5995a1049375dcd0df1fb9bb7d7351edb98112
Cr-Commit-Position: refs/heads/master@{#35450}
==========

[commit-bot: I haz the power, 2016-04-13 15:22:48]

Patchset 1 (id:??) landed as
https://crrev.com/ec5995a1049375dcd0df1fb9bb7d7351edb98112
Cr-Commit-Position: refs/heads/master@{#35450}