[all-commits] [llvm/llvm-project] 9678b0: Revert 7a0da8894348, "scudo: Support memory taggin...

[pcc via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9678b07e42ee4cfabbc7405441ccc8ac493df4b5
      https://github.com/llvm/llvm-project/commit/9678b07e42ee4cfabbc7405441ccc8ac493df4b5
  Author: Peter Collingbourne <peter at pcc.me.uk>
  Date:   2021-02-25 (Thu, 25 Feb 2021)

  Changed paths:
    M compiler-rt/lib/scudo/standalone/allocator_config.h
    M compiler-rt/lib/scudo/standalone/combined.h
    M compiler-rt/lib/scudo/standalone/common.h
    M compiler-rt/lib/scudo/standalone/fuchsia.cpp
    M compiler-rt/lib/scudo/standalone/linux.cpp
    M compiler-rt/lib/scudo/standalone/memtag.h
    M compiler-rt/lib/scudo/standalone/primary64.h
    M compiler-rt/lib/scudo/standalone/secondary.h
    M compiler-rt/lib/scudo/standalone/tests/combined_test.cpp
    M compiler-rt/lib/scudo/standalone/tests/secondary_test.cpp
    M compiler-rt/lib/scudo/standalone/tsd_exclusive.h
    M compiler-rt/lib/scudo/standalone/tsd_shared.h

  Log Message:
  -----------
  Revert 7a0da8894348, "scudo: Support memory tagging in the secondary allocator."

We measured a 2.5 seconds (17.5%) regression in Android boot time
performance with this change.