[PATCH] D143576: [LowerTypeTests] Support generating Armv6-M jump tables.

[Simon Tatham via Phabricator via llvm-commits]

simon_tatham updated this revision to Diff 496161.
simon_tatham edited the summary of this revision.
simon_tatham added a comment.

Revised the patch to make the right decision on Armv6 and before, where Arm and Thumb-1 jump tables are both available, and we always want to pick Arm because it's smaller and faster. This also exposed a bug in which ``getJumpTableEntrySize`` was ignoring the fact that ``selectJumpTableArmEncoding`` might have swapped to the other one of Arm and Thumb (and until now it didn't matter because the table entries were always the same size for both).


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D143576/new/

https://reviews.llvm.org/D143576

Files:
  llvm/include/llvm/Analysis/TargetTransformInfo.h
  llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
  llvm/lib/Analysis/TargetTransformInfo.cpp
  llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp
  llvm/lib/Target/ARM/ARMTargetTransformInfo.h
  llvm/lib/Transforms/IPO/LowerTypeTests.cpp
  llvm/test/Transforms/LowerTypeTests/function-arm-thumb.ll
  llvm/test/Transforms/LowerTypeTests/function.ll

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