[llvm-commits] [PATCH] Efficient implementation of ITState tracking in Thumb disassembler

[Richard Barton]

Hello reviewers

The attached patch refactors the disassembly of Thumb IT instructions. The IT
state is pushed to a stack and then popped and applied to subsequent
instructions in the IT block. 

The old implementation used an insertion at the front of a vector which is
linear in complexity to the size of the vector. My patch replaces it with an
actual stack, and encapsulates it in a class.

Please review.

Thanks 

Richard Barton
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