S390: Fix prologue offset in GeneratePrologue

S390: Fix prologue offset in GeneratePrologue

Updates the prologue_offset value in LCodeGen::GeneratePrologue after
generating ahi/aghi.
prologue_offset is used in FindCodeAgeSequence. Failing to update
prologue_offset will result in failing to correctly identify the code
aging sequence (young).

R=joransiu@ca.ibm.com, mbrandy@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/2e48dc018aa432ad02d37f41bc71a2367a33bc48
Cr-Commit-Position: refs/heads/master@{#35112}

[john.yan, 2016-03-29 17:00:46]

PTAL

[JoranSiu, 2016-03-29 17:01:57]

On 2016/03/29 17:00:46, john.yan wrote:
> PTAL

lgtm

[john.yan, 2016-03-29 17:04:30]

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

[commit-bot: I haz the power, 2016-03-29 17:04:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1843673002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1843673002/1

[commit-bot: I haz the power, 2016-03-29 17:24:41]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-29 17:25:40]

Description was changed from

==========
S390: Fix prologue offset in GeneratePrologue

Updates the prologue_offset value in LCodeGen::GeneratePrologue after
generating ahi/aghi.
prologue_offset is used in FindCodeAgeSequence. Failing to update
prologue_offset will result in failing to correctly identify the code
aging sequence (young).

R=joransiu@ca.ibm.com, mbrandy@us.ibm.com, michael_dawson@ca.ibm.com
BUG=
==========

to

==========
S390: Fix prologue offset in GeneratePrologue

Updates the prologue_offset value in LCodeGen::GeneratePrologue after
generating ahi/aghi.
prologue_offset is used in FindCodeAgeSequence. Failing to update
prologue_offset will result in failing to correctly identify the code
aging sequence (young).

R=joransiu@ca.ibm.com, mbrandy@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/2e48dc018aa432ad02d37f41bc71a2367a33bc48
Cr-Commit-Position: refs/heads/master@{#35112}
==========

[commit-bot: I haz the power, 2016-03-29 17:25:41]

Patchset 1 (id:??) landed as
https://crrev.com/2e48dc018aa432ad02d37f41bc71a2367a33bc48
Cr-Commit-Position: refs/heads/master@{#35112}