MIPS64: Replace JR/JALR with JIC/JIALC for r6.

MIPS64: Replace JR/JALR with JIC/JIALC for r6.

Port of changes that replace JR and JALR instructions with JIC and JIALC
for mips64r6. Macroassembler Jump and Call functions now use JIC and
JIALC if branch delay slot is not used. Code patching is adjusted to
work with new changes. Jr and Jalr macroassembler functions are removed.
Other changes where mips32r6 uses jr/jalr are not done because mips64r6
uses j/jal instructions.

BUG=

Committed: https://crrev.com/a3f941aed4afb475232b2d7d11179720d5e52fd6
Cr-Commit-Position: refs/heads/master@{#35141}

[miran.karic, 2016-03-24 13:17:45]

miran.karic@imgtec.com changed reviewers:
+ akos.palfi@imgtec.com, balazs.kilvady@imgtec.com, ilija.pavlovic@imgtec.com,
ivica.bogosavljevic@imgtec.com, marija.antic@imgtec.com

[balazs.kilvady, 2016-03-24 17:03:10]

Looks good. A nit:

https://codereview.chromium.org/1830133002/diff/1/src/full-codegen/mips64/ful...
File src/full-codegen/mips64/full-codegen-mips64.cc (right):

https://codereview.chromium.org/1830133002/diff/1/src/full-codegen/mips64/ful...
src/full-codegen/mips64/full-codegen-mips64.cc:4070: }
Could you use the same constant-based solution here as on 32-bit part 2 CL? And
for the all of the other pc +/- <magic value> part. Do you plan to create a
separated 64 version of the ... part 2 CL?

[miran.karic, 2016-03-25 09:30:09]

https://codereview.chromium.org/1830133002/diff/1/src/full-codegen/mips64/ful...
File src/full-codegen/mips64/full-codegen-mips64.cc (right):

https://codereview.chromium.org/1830133002/diff/1/src/full-codegen/mips64/ful...
src/full-codegen/mips64/full-codegen-mips64.cc:4070: }
On 2016/03/24 17:03:10, balazs.kilvady wrote:
> Could you use the same constant-based solution here as on 32-bit part 2 CL?
And
> for the all of the other pc +/- <magic value> part. Do you plan to create a
> separated 64 version of the ... part 2 CL?

Yes, I was planing to do that the same way as for mips32. When I finish testing
I will upload the CL. These are all the changes I plan to do, the rest of the
code uses j/jal in mips64 so I won't change it.

[balazs.kilvady, 2016-03-30 15:35:29]

LGTM. Please put a dot to the end of the 1st line of the description:
MIPS64: Replace JR/JALR with JIC/JIALC for r6.

[miran.karic, 2016-03-30 16:23:36]

Description was changed from

==========
MIPS64: Replace JR/JALR with JIC/JIALC for r6

Port of changes that replace JR and JALR instructions with JIC and JIALC
for mips64r6. Macroassembler Jump and Call functions now use JIC and
JIALC if branch delay slot is not used. Code patching is adjusted to
work with new changes. Jr and Jalr macroassembler functions are removed.
Other changes where mips32r6 uses jr/jalr are not done because mips64r6
uses j/jal instructions.

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

to

==========
MIPS64: Replace JR/JALR with JIC/JIALC for r6.

Port of changes that replace JR and JALR instructions with JIC and JIALC
for mips64r6. Macroassembler Jump and Call functions now use JIC and
JIALC if branch delay slot is not used. Code patching is adjusted to
work with new changes. Jr and Jalr macroassembler functions are removed.
Other changes where mips32r6 uses jr/jalr are not done because mips64r6
uses j/jal instructions.

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

[miran.karic, 2016-03-30 16:24:15]

The CQ bit was checked by miran.karic@imgtec.com

[miran.karic, 2016-03-30 16:24:15]

The patchset sent to the CQ was uploaded after l-g-t-m from
balazs.kilvady@imgtec.com
Link to the patchset: https://codereview.chromium.org/1830133002/#ps40001
(title: " ")

[commit-bot: I haz the power, 2016-03-30 16:24:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1830133002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1830133002/40001

[commit-bot: I haz the power, 2016-03-30 16:44:00]

Description was changed from

==========
MIPS64: Replace JR/JALR with JIC/JIALC for r6.

Port of changes that replace JR and JALR instructions with JIC and JIALC
for mips64r6. Macroassembler Jump and Call functions now use JIC and
JIALC if branch delay slot is not used. Code patching is adjusted to
work with new changes. Jr and Jalr macroassembler functions are removed.
Other changes where mips32r6 uses jr/jalr are not done because mips64r6
uses j/jal instructions.

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

to

==========
MIPS64: Replace JR/JALR with JIC/JIALC for r6.

Port of changes that replace JR and JALR instructions with JIC and JIALC
for mips64r6. Macroassembler Jump and Call functions now use JIC and
JIALC if branch delay slot is not used. Code patching is adjusted to
work with new changes. Jr and Jalr macroassembler functions are removed.
Other changes where mips32r6 uses jr/jalr are not done because mips64r6
uses j/jal instructions.

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

[commit-bot: I haz the power, 2016-03-30 16:44:01]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-03-30 16:44:54]

Description was changed from

==========
MIPS64: Replace JR/JALR with JIC/JIALC for r6.

Port of changes that replace JR and JALR instructions with JIC and JIALC
for mips64r6. Macroassembler Jump and Call functions now use JIC and
JIALC if branch delay slot is not used. Code patching is adjusted to
work with new changes. Jr and Jalr macroassembler functions are removed.
Other changes where mips32r6 uses jr/jalr are not done because mips64r6
uses j/jal instructions.

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

to

==========
MIPS64: Replace JR/JALR with JIC/JIALC for r6.

Port of changes that replace JR and JALR instructions with JIC and JIALC
for mips64r6. Macroassembler Jump and Call functions now use JIC and
JIALC if branch delay slot is not used. Code patching is adjusted to
work with new changes. Jr and Jalr macroassembler functions are removed.
Other changes where mips32r6 uses jr/jalr are not done because mips64r6
uses j/jal instructions.

BUG=

Committed: https://crrev.com/a3f941aed4afb475232b2d7d11179720d5e52fd6
Cr-Commit-Position: refs/heads/master@{#35141}
==========

[commit-bot: I haz the power, 2016-03-30 16:44:55]

Patchset 3 (id:??) landed as
https://crrev.com/a3f941aed4afb475232b2d7d11179720d5e52fd6
Cr-Commit-Position: refs/heads/master@{#35141}