Finish 'MIPS: [turbofan] Add backend support for float32 operations.'

Finish 'MIPS: [turbofan] Add backend support for float32 operations.'

Add missing parts of the port to MIPS/MIPS64 implementations.

BUG=

Committed: https://crrev.com/6cb0e87cead8ee081472db731e6e3d2b03f344d4
Cr-Commit-Position: refs/heads/master@{#27551}

[balazs.kilvady, 2015-03-31 17:30:46]

balazs.kilvady@imgtec.com changed reviewers:
+ akos.palfi@imgtec.com, bmeurer@chromium.org, danno@chromium.org,
dusan.milosavljevic@imgtec.com, gergely.kis@imgtec.com, paul.lind@imgtec.com

[paul.l..., 2015-03-31 17:54:16]

LGTM.

[balazs.kilvady, 2015-03-31 17:56:55]

The CQ bit was checked by balazs.kilvady@imgtec.com

[commit-bot: I haz the power, 2015-03-31 17:57:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1047213002/20001

[commit-bot: I haz the power, 2015-03-31 18:26:01]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-31 18:26:25]

Patchset 2 (id:??) landed as
https://crrev.com/6cb0e87cead8ee081472db731e6e3d2b03f344d4
Cr-Commit-Position: refs/heads/master@{#27551}

[jochen (gone - plz use gerrit), 2015-11-25 13:00:26]

jochen@chromium.org changed reviewers:
+ jochen@chromium.org

[jochen (gone - plz use gerrit), 2015-11-25 13:00:26]

https://codereview.chromium.org/1047213002/diff/20001/test/cctest/test-assemb...
File test/cctest/test-assembler-mips.cc (right):

https://codereview.chromium.org/1047213002/diff/20001/test/cctest/test-assemb...
test/cctest/test-assembler-mips.cc:49: // clang-format off
please don't do this. clang-format off is meant to be used a small scope, not a
blanket thing for the entire file.