S390: Fixed condition code handling on FP->INT and FP rounding in simulator.

S390: Fixed condition code handling on FP->INT and FP rounding in simulator.

The below instructions were fixed so that the produced condition
codes in simulator matched behaviour in native s390 CPUs:

CFDBR
CGDBR
CGEBR
CFEBR
CLFDBR
CLGDBR
CLGEBR

Also implemented the CLFEBR instruction in s390 simulator.

(Copypaste of 1763663003, which was pointing at wrong branch - should be master, not lkgr)

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,joransiu@ca.ibm.com,michael_dawson@ca.ibm.com,mbrandy@us.ibm.com,jyan@ca.ibm.com

BUG=

Committed: https://crrev.com/2fdc0ae3aa6fbab76e0ac2663be7998fe99d75dc
Cr-Commit-Position: refs/heads/master@{#34598}

[bcleung, 2016-03-07 20:58:58]

Description was changed from

==========
Fixed condition code handling on FP->INT and FP rounding in simulator.

The below instructions were fixed so that the produced condition
codes in simulator matched behaviour in native s390 CPUs:

CFDBR
CGDBR
CGEBR
CFEBR
CLFDBR
CLGDBR
CLGEBR

Conflicts:
	src/s390/simulator-s390.cc

BUG=
==========

to

==========
S390: Fixed condition code handling on FP->INT and FP rounding in simulator.

The below instructions were fixed so that the produced condition
codes in simulator matched behaviour in native s390 CPUs:

CFDBR
CGDBR
CGEBR
CFEBR
CLFDBR
CLGDBR
CLGEBR

Also implemented the CLFEBR instruction in s390 simulator.

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,joransiu@ca.i...

BUG=
==========

[bcleung, 2016-03-07 20:58:58]

bryleun@ca.ibm.com changed reviewers:
+ danno@chromium.org, jkummerow@chromium.org, jochen@chromium.org,
joransiu@ca.ibm.com, jyan@ca.ibm.com, mbrandy@us.ibm.com,
michael_dawson@ca.ibm.com, verwaest@chromium.org

[bcleung, 2016-03-07 21:03:00]

Description was changed from

==========
S390: Fixed condition code handling on FP->INT and FP rounding in simulator.

The below instructions were fixed so that the produced condition
codes in simulator matched behaviour in native s390 CPUs:

CFDBR
CGDBR
CGEBR
CFEBR
CLFDBR
CLGDBR
CLGEBR

Also implemented the CLFEBR instruction in s390 simulator.

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,joransiu@ca.i...

BUG=
==========

to

==========
S390: Fixed condition code handling on FP->INT and FP rounding in simulator.

The below instructions were fixed so that the produced condition
codes in simulator matched behaviour in native s390 CPUs:

CFDBR
CGDBR
CGEBR
CFEBR
CLFDBR
CLGDBR
CLGEBR

Also implemented the CLFEBR instruction in s390 simulator.

(Copypaste of 1763663003, which was pointing at wrong branch - should be master,
not lkgr)

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,joransiu@ca.i...

BUG=
==========

[Jakob Kummerow, 2016-03-07 21:41:13]

lgtm

[JoranSiu, 2016-03-08 18:28:20]

lgtm

[bcleung, 2016-03-08 18:49:06]

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

[commit-bot: I haz the power, 2016-03-08 18:49:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1773813002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1773813002/1

[commit-bot: I haz the power, 2016-03-08 19:15:12]

Description was changed from

==========
S390: Fixed condition code handling on FP->INT and FP rounding in simulator.

The below instructions were fixed so that the produced condition
codes in simulator matched behaviour in native s390 CPUs:

CFDBR
CGDBR
CGEBR
CFEBR
CLFDBR
CLGDBR
CLGEBR

Also implemented the CLFEBR instruction in s390 simulator.

(Copypaste of 1763663003, which was pointing at wrong branch - should be master,
not lkgr)

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,joransiu@ca.i...

BUG=
==========

to

==========
S390: Fixed condition code handling on FP->INT and FP rounding in simulator.

The below instructions were fixed so that the produced condition
codes in simulator matched behaviour in native s390 CPUs:

CFDBR
CGDBR
CGEBR
CFEBR
CLFDBR
CLGDBR
CLGEBR

Also implemented the CLFEBR instruction in s390 simulator.

(Copypaste of 1763663003, which was pointing at wrong branch - should be master,
not lkgr)

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,joransiu@ca.i...

BUG=
==========

[commit-bot: I haz the power, 2016-03-08 19:15:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-08 19:16:33]

Description was changed from

==========
S390: Fixed condition code handling on FP->INT and FP rounding in simulator.

The below instructions were fixed so that the produced condition
codes in simulator matched behaviour in native s390 CPUs:

CFDBR
CGDBR
CGEBR
CFEBR
CLFDBR
CLGDBR
CLGEBR

Also implemented the CLFEBR instruction in s390 simulator.

(Copypaste of 1763663003, which was pointing at wrong branch - should be master,
not lkgr)

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,joransiu@ca.i...

BUG=
==========

to

==========
S390: Fixed condition code handling on FP->INT and FP rounding in simulator.

The below instructions were fixed so that the produced condition
codes in simulator matched behaviour in native s390 CPUs:

CFDBR
CGDBR
CGEBR
CFEBR
CLFDBR
CLGDBR
CLGEBR

Also implemented the CLFEBR instruction in s390 simulator.

(Copypaste of 1763663003, which was pointing at wrong branch - should be master,
not lkgr)

R=danno@chromium.org,jkummerow@chromium.org,jochen@chromium.org,joransiu@ca.i...

BUG=

Committed: https://crrev.com/2fdc0ae3aa6fbab76e0ac2663be7998fe99d75dc
Cr-Commit-Position: refs/heads/master@{#34598}
==========

[commit-bot: I haz the power, 2016-03-08 19:16:34]

Patchset 1 (id:??) landed as
https://crrev.com/2fdc0ae3aa6fbab76e0ac2663be7998fe99d75dc
Cr-Commit-Position: refs/heads/master@{#34598}

[bcleung, 2016-03-23 21:28:47]

Patchset #2 (id:20001) has been deleted