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Change-Id: Idffbdb02c29e2be03a75f5a0a664603f2299504a
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Adapt the existing counted loop analysis and range/null check
elimination code to work with the new loop building heuristics.
Cleaned up the old ad-hoc loop builder.
Suspend polling is enabled by default for loops. The backward chaining
cell will be used in self-verification and profiling mode.
If the loop includes accesses to resolved fields/classes, abort code
generation for now and revert to the basic acyclic trace. Added
tests/090-loop-formation to make sure the JIT won't choke on such
instructions.
Change-Id: Idbc57df0a745be3b692f68c1acb6d4861c537f75
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The current implementation is to reconstruct the leaf Dalvik frame and
punt to the interpreter, since the amount of work involed to match
each catch block and walk through the stack frames is just not worth
JIT'ing.
Additional changes:
- Fixed a control-flow bug where a block that ends with a throw shouldn't
have a fall-through block.
- Fixed a code cache lookup bug so that method-based compilation is
guaranteed a slot in the profiling table.
- Created separate handler routines based on opcode format for the
method-based JIT.
- Renamed a few core registers that also have special meanings to the
VM or ARM architecture.
Change-Id: I429b3633f281a0e04d352ae17a1c4f4a41bab156
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Enhanced code cache management to accommodate both trace and method
compilations. Also implemented a hacky dispatch routine for virtual
leaf methods.
Microbenchmark showed 3x speedup in leaf method invocation.
Change-Id: I79d95b7300ba993667b3aa221c1df9c7b0583521
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