Revert of [turbofan] Add the StackSlot operator to turbofan.

Revert of [turbofan] Add the StackSlot operator to turbofan. (patchset #4 id:60001 of https://codereview.chromium.org/1645653002/ )

Reason for revert:
problems on Mac64

Original issue's description:
> [turbofan] Add the StackSlot operator to turbofan.
>
> The StackSlot operator allows to allocate a spill slot on the stack. We
> are going to use this operator to pass floats through pointers to c
> functions, which we need for floating point rounding in the case where
> the architecture does not provide rounding instructions.
>
> R=titzer@chromium.org, v8-arm-ports@googlegroups.com, v8-ppc-ports@googlegroups.com, v8-mips-ports@googlegroups.com
>
> Committed: https://crrev.com/7a693437787090d62d937b862e29521debcc5223
> Cr-Commit-Position: refs/heads/master@{#33600}

TBR=titzer@chromium.org,v8-arm-ports@googlegroups.com,v8-mips-ports@googlegroups.com,v8-ppc-ports@googlegroups.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/11f7c2e63c98783650ef1fc9f01160cf2910e44e
Cr-Commit-Position: refs/heads/master@{#33601}

[ahaas, 2016-01-29 08:18:27]

Created Revert of [turbofan] Add the StackSlot operator to turbofan.

[commit-bot: I haz the power, 2016-01-29 08:18:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1644283002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1644283002/1

[commit-bot: I haz the power, 2016-01-29 08:18:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-29 08:19:17]

Description was changed from

==========
Revert of [turbofan] Add the StackSlot operator to turbofan. (patchset #4
id:60001 of https://codereview.chromium.org/1645653002/ )

Reason for revert:
problems on Mac64

Original issue's description:
> [turbofan] Add the StackSlot operator to turbofan.
> 
> The StackSlot operator allows to allocate a spill slot on the stack. We
> are going to use this operator to pass floats through pointers to c
> functions, which we need for floating point rounding in the case where
> the architecture does not provide rounding instructions.
> 
> R=titzer@chromium.org, v8-arm-ports@googlegroups.com,
v8-ppc-ports@googlegroups.com, v8-mips-ports@googlegroups.com
> 
> Committed: https://crrev.com/7a693437787090d62d937b862e29521debcc5223
> Cr-Commit-Position: refs/heads/master@{#33600}

TBR=titzer@chromium.org,v8-arm-ports@googlegroups.com,v8-mips-ports@googlegro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of [turbofan] Add the StackSlot operator to turbofan. (patchset #4
id:60001 of https://codereview.chromium.org/1645653002/ )

Reason for revert:
problems on Mac64

Original issue's description:
> [turbofan] Add the StackSlot operator to turbofan.
>
> The StackSlot operator allows to allocate a spill slot on the stack. We
> are going to use this operator to pass floats through pointers to c
> functions, which we need for floating point rounding in the case where
> the architecture does not provide rounding instructions.
>
> R=titzer@chromium.org, v8-arm-ports@googlegroups.com,
v8-ppc-ports@googlegroups.com, v8-mips-ports@googlegroups.com
>
> Committed: https://crrev.com/7a693437787090d62d937b862e29521debcc5223
> Cr-Commit-Position: refs/heads/master@{#33600}

TBR=titzer@chromium.org,v8-arm-ports@googlegroups.com,v8-mips-ports@googlegro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/11f7c2e63c98783650ef1fc9f01160cf2910e44e
Cr-Commit-Position: refs/heads/master@{#33601}
==========

[commit-bot: I haz the power, 2016-01-29 08:19:22]

Patchset 1 (id:??) landed as
https://crrev.com/11f7c2e63c98783650ef1fc9f01160cf2910e44e
Cr-Commit-Position: refs/heads/master@{#33601}