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16-Feb-2016 |
David Brazdil <dbrazdil@google.com> |
Build dominator tree before generating HInstructions
Second CL in the series of merging HGraphBuilder and SsaBuilder. This
patch refactors the builders so that dominator tree can be built
before any HInstructions are generated. This puts the SsaBuilder
removal of HLoadLocals/HStoreLocals straight after HGraphBuilder's
HInstruction generation phase. Next CL will therefore be able to
merge them.
This patch also adds util classes for iterating bytecode and switch
tables which allowed to simplify the code.
Bug: 27894376
Change-Id: Ic425d298b2e6e7980481ed697230b1a0b7904526
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