[all-commits] [llvm/llvm-project] b2c1ba: Revert "[ARM][TypePromotion] Enable by default"

[Reid Kleckner via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: b2c1ba5b1f8049cdacec1a111c2ef267cd5acff5
      https://github.com/llvm/llvm-project/commit/b2c1ba5b1f8049cdacec1a111c2ef267cd5acff5
  Author: Reid Kleckner <rnk at google.com>
  Date:   2019-12-22 (Sun, 22 Dec 2019)

  Changed paths:
    M llvm/lib/CodeGen/TypePromotion.cpp
    M llvm/test/Transforms/TypePromotion/ARM/calls.ll
    M llvm/test/Transforms/TypePromotion/ARM/casts.ll
    M llvm/test/Transforms/TypePromotion/ARM/clear-structures.ll
    M llvm/test/Transforms/TypePromotion/ARM/icmps.ll
    M llvm/test/Transforms/TypePromotion/ARM/phis-ret.ll
    M llvm/test/Transforms/TypePromotion/ARM/pointers.ll
    M llvm/test/Transforms/TypePromotion/ARM/signed-icmps.ll
    M llvm/test/Transforms/TypePromotion/ARM/signed.ll
    M llvm/test/Transforms/TypePromotion/ARM/switch.ll
    M llvm/test/Transforms/TypePromotion/ARM/wrapping.ll

  Log Message:
  -----------
  Revert "[ARM][TypePromotion] Enable by default"

This reverts commit ee7579409b7d940c4e1314d126e900db30c4edff.

It causes crashes during ThinLTO. I suspect the issue is related to
races on the global TypeSize variable, which is 80 at the time of the
crash.