PPC/s390: [builtins] Introduce proper Float64Exp operator.

PPC/s390: [builtins] Introduce proper Float64Exp operator.

Port d5f2ac5e3326f281cbe7ba57464a4b17a9938e37

Original commit message:

    Import base::ieee754::exp() from FreeBSD msun and introduce a Float64Exp
    TurboFan operator based on that, similar to what we do for Float64Log.
    Rewrite Math.exp() as TurboFan builtin and use that operator to also
    inline Math.exp() into optimized TurboFan functions.

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

BUG=v8:3266, v8:3468, v8:3493, v8:5086, v8:5108, chromium:620786
LOG=N

Committed: https://crrev.com/a54e289e68c649cb3f1fc33d27b850d825d575cb
Cr-Commit-Position: refs/heads/master@{#37073}

[JaideepBajwa, 2016-06-17 21:40:01]

PTAL

[john.yan, 2016-06-18 02:13:50]

Lgtm with one comment.

https://codereview.chromium.org/2075263002/diff/1/src/crankshaft/s390/lithium...
File src/crankshaft/s390/lithium-s390.cc (right):

https://codereview.chromium.org/2075263002/diff/1/src/crankshaft/s390/lithium...
src/crankshaft/s390/lithium-s390.cc:1050: LOperand* input =
UseFixedDouble(instr->value(), d1);
I think the first parameter for fp isn't d1. Are you sure that's all right?

[JaideepBajwa, 2016-06-18 04:09:11]

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

[JaideepBajwa, 2016-06-18 04:09:12]

The patchset sent to the CQ was uploaded after l-g-t-m from jyan@ca.ibm.com
Link to the patchset: https://codereview.chromium.org/2075263002/#ps20001
(title: "addressed comments, uploaded doubleregister to d0")

[commit-bot: I haz the power, 2016-06-18 04:09:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2075263002/20001

[JaideepBajwa, 2016-06-18 04:10:38]

On 2016/06/18 02:13:50, john.yan wrote:
> Lgtm with one comment.
> 
>
https://codereview.chromium.org/2075263002/diff/1/src/crankshaft/s390/lithium...
> File src/crankshaft/s390/lithium-s390.cc (right):
> 
>
https://codereview.chromium.org/2075263002/diff/1/src/crankshaft/s390/lithium...
> src/crankshaft/s390/lithium-s390.cc:1050: LOperand* input =
> UseFixedDouble(instr->value(), d1);
> I think the first parameter for fp isn't d1. Are you sure that's all right?

Thanks, I've added the fix

[commit-bot: I haz the power, 2016-06-18 09:35:54]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-06-18 09:38:35]

Description was changed from

==========
PPC/s390: [builtins] Introduce proper Float64Exp operator.

Port d5f2ac5e3326f281cbe7ba57464a4b17a9938e37

Original commit message:

    Import base::ieee754::exp() from FreeBSD msun and introduce a Float64Exp
    TurboFan operator based on that, similar to what we do for Float64Log.
    Rewrite Math.exp() as TurboFan builtin and use that operator to also
    inline Math.exp() into optimized TurboFan functions.

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

BUG=v8:3266,v8:3468,v8:3493,v8:5086,v8:5108,chromium:620786
LOG=N
==========

to

==========
PPC/s390: [builtins] Introduce proper Float64Exp operator.

Port d5f2ac5e3326f281cbe7ba57464a4b17a9938e37

Original commit message:

    Import base::ieee754::exp() from FreeBSD msun and introduce a Float64Exp
    TurboFan operator based on that, similar to what we do for Float64Log.
    Rewrite Math.exp() as TurboFan builtin and use that operator to also
    inline Math.exp() into optimized TurboFan functions.

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

BUG=v8:3266,v8:3468,v8:3493,v8:5086,v8:5108,chromium:620786
LOG=N

Committed: https://crrev.com/a54e289e68c649cb3f1fc33d27b850d825d575cb
Cr-Commit-Position: refs/heads/master@{#37073}
==========

[commit-bot: I haz the power, 2016-06-18 09:38:36]

Patchset 2 (id:??) landed as
https://crrev.com/a54e289e68c649cb3f1fc33d27b850d825d575cb
Cr-Commit-Position: refs/heads/master@{#37073}