MIPS: [turbofan] Make VisitBranch and friends to backend specific.
Port r24546 (c3443cd)
Original commit message:
This is required to fix a tricky branch fusion bug on ARM, which was
caused by the interaction between the architecture-independent and
architecture-specific parts of the InstructionSelector. In the end it
wasn't worth sharing a few common lines of code for the additional
complexity, especially if we also want to properly support architectures
without any dedicated flags register (i.e. MIPS).
TEST=mjsunit,unittests
BUG=
R=paul.lind@imgtec.com
Review URL: https://codereview.chromium.org/
644973003
Patch from Balazs Kilvady <balazs.kilvady@imgtec.com>.
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24571
ce2b1a6d-e550-0410-aec6-
3dcde31c8c00