Revert of Convert SIMD wasm ops to runtime function calls

Revert of Convert SIMD wasm ops to runtime function calls (patchset #17 id:320001 of https://codereview.chromium.org/1991143002/ )

Reason for revert:
[Sheriff] Violates msan and tsan:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/9663
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/10670

Original issue's description:
> Convert SIMD machine ops to runtime function calls
>  - Add Simd128 type to Wasm AST types
>  - Add a pass that converts SIMD machine ops to runtime calls
>  - Sample opcodes Int32x4Splat, Int32x4ExtractLane and test
>  - Separate out generic SIMD Machine ops as these cannot be
>  handled by runtime functions just yet.
>
> LOG=N
> BUG=v8:4124
>
> R=bradnelson@chromium.org, bbudge@chromium.org, titzer@chromium.org
>
> Committed: https://crrev.com/73df92fc2fdbbfadc17e8ab4e58ec56ae2b3d91a
> Cr-Commit-Position: refs/heads/master@{#37789}

TBR=bbudge@chromium.org,bradnelson@chromium.org,titzer@chromium.org,gdeepti@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124
Committed: https://crrev.com/9f46c1112b98e0e3e6317d244a76b96516b1ef16
Cr-Commit-Position: refs/heads/master@{#37790}

[Michael Achenbach, 2016-07-15 08:59:23]

The CQ bit was checked by machenbach@chromium.org

[Michael Achenbach, 2016-07-15 08:59:23]

Created Revert of Convert SIMD wasm ops to runtime function calls

[commit-bot: I haz the power, 2016-07-15 08:59:32]

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, 2016-07-15 08:59:48]

Description was changed from

==========
Revert of Convert SIMD wasm ops to runtime function calls (patchset #17
id:320001 of https://codereview.chromium.org/1991143002/ )

Reason for revert:
[Sheriff] Violates msan and tsan:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20...
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/10670

Original issue's description:
> Convert SIMD machine ops to runtime function calls
>  - Add Simd128 type to Wasm AST types
>  - Add a pass that converts SIMD machine ops to runtime calls
>  - Sample opcodes Int32x4Splat, Int32x4ExtractLane and test
>  - Separate out generic SIMD Machine ops as these cannot be
>  handled by runtime functions just yet.
> 
> LOG=N
> BUG=v8:4124
> 
> R=bradnelson@chromium.org, bbudge@chromium.org, titzer@chromium.org
> 
> Committed: https://crrev.com/73df92fc2fdbbfadc17e8ab4e58ec56ae2b3d91a
> Cr-Commit-Position: refs/heads/master@{#37789}

TBR=bbudge@chromium.org,bradnelson@chromium.org,titzer@chromium.org,gdeepti@c...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124
==========

to

==========
Revert of Convert SIMD wasm ops to runtime function calls (patchset #17
id:320001 of https://codereview.chromium.org/1991143002/ )

Reason for revert:
[Sheriff] Violates msan and tsan:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20...
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/10670

Original issue's description:
> Convert SIMD machine ops to runtime function calls
>  - Add Simd128 type to Wasm AST types
>  - Add a pass that converts SIMD machine ops to runtime calls
>  - Sample opcodes Int32x4Splat, Int32x4ExtractLane and test
>  - Separate out generic SIMD Machine ops as these cannot be
>  handled by runtime functions just yet.
> 
> LOG=N
> BUG=v8:4124
> 
> R=bradnelson@chromium.org, bbudge@chromium.org, titzer@chromium.org
> 
> Committed: https://crrev.com/73df92fc2fdbbfadc17e8ab4e58ec56ae2b3d91a
> Cr-Commit-Position: refs/heads/master@{#37789}

TBR=bbudge@chromium.org,bradnelson@chromium.org,titzer@chromium.org,gdeepti@c...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124
==========

[commit-bot: I haz the power, 2016-07-15 08:59:49]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-15 09:00:10]

Description was changed from

==========
Revert of Convert SIMD wasm ops to runtime function calls (patchset #17
id:320001 of https://codereview.chromium.org/1991143002/ )

Reason for revert:
[Sheriff] Violates msan and tsan:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20...
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/10670

Original issue's description:
> Convert SIMD machine ops to runtime function calls
>  - Add Simd128 type to Wasm AST types
>  - Add a pass that converts SIMD machine ops to runtime calls
>  - Sample opcodes Int32x4Splat, Int32x4ExtractLane and test
>  - Separate out generic SIMD Machine ops as these cannot be
>  handled by runtime functions just yet.
> 
> LOG=N
> BUG=v8:4124
> 
> R=bradnelson@chromium.org, bbudge@chromium.org, titzer@chromium.org
> 
> Committed: https://crrev.com/73df92fc2fdbbfadc17e8ab4e58ec56ae2b3d91a
> Cr-Commit-Position: refs/heads/master@{#37789}

TBR=bbudge@chromium.org,bradnelson@chromium.org,titzer@chromium.org,gdeepti@c...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124
==========

to

==========
Revert of Convert SIMD wasm ops to runtime function calls (patchset #17
id:320001 of https://codereview.chromium.org/1991143002/ )

Reason for revert:
[Sheriff] Violates msan and tsan:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20...
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/10670

Original issue's description:
> Convert SIMD machine ops to runtime function calls
>  - Add Simd128 type to Wasm AST types
>  - Add a pass that converts SIMD machine ops to runtime calls
>  - Sample opcodes Int32x4Splat, Int32x4ExtractLane and test
>  - Separate out generic SIMD Machine ops as these cannot be
>  handled by runtime functions just yet.
>
> LOG=N
> BUG=v8:4124
>
> R=bradnelson@chromium.org, bbudge@chromium.org, titzer@chromium.org
>
> Committed: https://crrev.com/73df92fc2fdbbfadc17e8ab4e58ec56ae2b3d91a
> Cr-Commit-Position: refs/heads/master@{#37789}

TBR=bbudge@chromium.org,bradnelson@chromium.org,titzer@chromium.org,gdeepti@c...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124

Committed: https://crrev.com/9f46c1112b98e0e3e6317d244a76b96516b1ef16
Cr-Commit-Position: refs/heads/master@{#37790}
==========

[commit-bot: I haz the power, 2016-07-15 09:00:11]

Patchset 1 (id:??) landed as
https://crrev.com/9f46c1112b98e0e3e6317d244a76b96516b1ef16
Cr-Commit-Position: refs/heads/master@{#37790}