Reviewers: danno, Benedikt Meurer, paul.l..., gergely.kis.imgtec,
akos.palfi.imgtec, dusmil.imgtec,
Description:
MIPS: [turbofan] Optimize certain chains of Branch into a Switch.
Port acd9c46ca7a0ada723d717f2545fd484c824eaa2
Original commit message:
This adds a new ControlFlowOptimizer that - for now - recognizes chains
of Branches generated by the SwitchBuilder for a subset of javascript
switches into Switch nodes. Those Switch nodes are then lowered to
either table or lookup switches.
Also rename Case to IfValue (and introduce IfDefault) for consistency.
BUG=v8:3872
LOG=n
Please review this at https://codereview.chromium.org/931263002/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+198, -52 lines):
M src/compiler/mips/code-generator-mips.cc
M src/compiler/mips/instruction-selector-mips.cc
M src/compiler/mips64/code-generator-mips64.cc
M src/compiler/mips64/instruction-selector-mips64.cc
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