[PATCH] D50800: [ARM] Use correct jump table sizes

[Phillip Raffeck via Phabricator via llvm-commits]

praffeck created this revision.
praffeck added a reviewer: eli.friedman.
praffeck created this object with visibility "All Users".
Herald added a reviewer: javed.absar.
Herald added subscribers: llvm-commits, chrib, kristof.beyls.

This patch ensures that the jump table sizes are represented correctly (as entries can be words, halfwords or bytes), both during the initial placement and after subsequent shrinking. As the resulting smaller tables may make some far branches unnecessary, far branches are checked again,after all tables are placced and optimized.


Repository:
  rL LLVM

https://reviews.llvm.org/D50800

Files:
  lib/Target/ARM/ARMConstantIslandPass.cpp
  test/CodeGen/ARM/jump-table-size.mir

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