[all-commits] [llvm/llvm-project] 932e3d: Revert "GlobalISel/AArch64: don't optimize away re...

[Muhammad Omair Javaid via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 932e3d9960c115d0f6a92b6b4c9529892ade8d32
      https://github.com/llvm/llvm-project/commit/932e3d9960c115d0f6a92b6b4c9529892ade8d32
  Author: Muhammad Omair Javaid <omair.javaid at linaro.org>
  Date:   2021-07-09 (Fri, 09 Jul 2021)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
    M llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
    M llvm/test/CodeGen/AArch64/GlobalISel/arm64-atomic.ll
    M llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
    M llvm/test/CodeGen/AArch64/unwind-preserved.ll
    M llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/jump_table_and_brjt.ll
    M llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/long_ambiguous_chain_s32.ll
    M llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/long_ambiguous_chain_s64.ll
    M llvm/test/CodeGen/Mips/GlobalISel/llvm-ir/phi.ll
    R llvm/test/DebugInfo/AArch64/fallthrough-branch.ll

  Log Message:
  -----------
  Revert "GlobalISel/AArch64: don't optimize away redundant branches at -O0"

This reverts commit 458c230b5ef893238d2471fcff27cd275e8026d5.

This broke LLDB buildbot testcase where breakpoint set at start of loop
failed to hit. https://lab.llvm.org/buildbot/#/builders/96/builds/9404

https://github.com/llvm/llvm-project/blob/main/lldb/test/API/commands/process/attach/main.cpp#L15

Differential Revision: https://reviews.llvm.org/D105238