[all-commits] [llvm/llvm-project] 4f9f4b: [ARM] Unrestrict Armv8-a IT when at minsize

[Sam Parker via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 4f9f4b21e07ba8137b40659ac5d3955586ce81bb
      https://github.com/llvm/llvm-project/commit/4f9f4b21e07ba8137b40659ac5d3955586ce81bb
  Author: Sam Parker <sam.parker at arm.com>
  Date:   2020-08-10 (Mon, 10 Aug 2020)

  Changed paths:
    M llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
    M llvm/lib/Target/ARM/ARMSubtarget.cpp
    M llvm/test/CodeGen/ARM/codesize-ifcvt.mir
    M llvm/test/CodeGen/ARM/ifcvt-size.mir

  Log Message:
  -----------
  [ARM] Unrestrict Armv8-a IT when at minsize

IT blocks with more than one instruction were performance deprecated in Armv8
but that doesn't mean we should follow that advise when optimising for size.

Differential Revision: https://reviews.llvm.org/D85638