BUG=

Review-Url: https://codereview.chromium.org/2513413006
Cr-Commit-Position: refs/heads/master@{#41202}

This adds more useful information to the v8-heap-stats tool.

BUG=v8:5489

Review-Url: https://codereview.chromium.org/2394213003
Cr-Commit-Position: refs/heads/master@{#40361}

X87: Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable pointers to update wasm memory size references in generated code.

  port 117a56b7 (r36044)

  original commit message:
  - Add new RelocInfo mode WASM_MEMORY_SIZE_REFERENCE in the assembler and add relocation information to immediates in compare instructions.
  - Use relocatable constants for MemSize/BoundsCheck in the wasm compiler

BUG=

Review-Url: https://codereview.chromium.org/1947413003
Cr-Commit-Position: refs/heads/master@{#36058}

We expect that the majority of malloc'd memory held by V8 is allocated
in Zone objects. Introduce an Allocator class that is used by Zones to
manage memory, and allows for querying the current usage.

BUG=none
R=titzer@chromium.org,bmeurer@chromium.org,jarin@chromium.org
LOG=n
TBR=rossberg@chromium.org

Review URL: https://codereview.chromium.org/1847543002

Cr-Commit-Position: refs/heads/master@{#35196}

  port e1a7c1e7 (r34836)

  original commit message:
   - New RelocInfo mode WASM_MEMORY_REFERENCE as a marker for wasm code objects that need to be relocated on a heap change
   - RelocInfo mode recorded for immediates that use the memory buffer as base
   - Tests to verify address patching works

BUG=

Review URL: https://codereview.chromium.org/1809973002

Cr-Commit-Position: refs/heads/master@{#34845}

 - New RelocInfo mode WASM_MEMORY_REFERENCE as a marker for wasm code objects that need to be relocated on a heap change
 - RelocInfo mode recorded for immediates that use the memory buffer as base
 - Tests to verify address patching works

BUG=

Committed: https://crrev.com/cc815b69c17da368107ed77306a5bb161170c834
Cr-Commit-Position: refs/heads/master@{#34831}

Review URL: https://codereview.chromium.org/1759873002

Cr-Commit-Position: refs/heads/master@{#34836}

Revert of Assembler changes for enabling GrowHeap in Wasm (patchset #13 id:260001 of https://codereview.chromium.org/1759873002/ )

Reason for revert:
Breaks compile:
https://build.chromium.org/p/client.v8/builders/V8%20Mac64/builds/7740

Probably had outdated tryjobs

Original issue's description:
> Assembler changes for enabling GrowHeap in Wasm
>  - New RelocInfo mode WASM_MEMORY_REFERENCE as a marker for wasm code objects that need to be relocated on a heap change
>  - RelocInfo mode recorded for immediates that use the memory buffer as base
>  - Tests to verify address patching works
>
> BUG=
>
> Committed: https://crrev.com/cc815b69c17da368107ed77306a5bb161170c834
> Cr-Commit-Position: refs/heads/master@{#34831}

TBR=titzer@chromium.org,yangguo@chromium.org,bradnelson@chromium.org,bradnelson@google.com,marija.antic@imgtec.com,gdeepti@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1808823002

Cr-Commit-Position: refs/heads/master@{#34832}

 - New RelocInfo mode WASM_MEMORY_REFERENCE as a marker for wasm code objects that need to be relocated on a heap change
 - RelocInfo mode recorded for immediates that use the memory buffer as base
 - Tests to verify address patching works

BUG=

Review URL: https://codereview.chromium.org/1759873002

Cr-Commit-Position: refs/heads/master@{#34831}