[all-commits] [llvm/llvm-project] a05098: [asan] Optimize Quarantine of secondary allocations

[Vitaly Buka via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a0509884d904e91eb18e1bd6b1e216b470b7e970
      https://github.com/llvm/llvm-project/commit/a0509884d904e91eb18e1bd6b1e216b470b7e970
  Author: Vitaly Buka <vitalybuka at google.com>
  Date:   2023-06-22 (Thu, 22 Jun 2023)

  Changed paths:
    M compiler-rt/lib/asan/asan_allocator.cpp

  Log Message:
  -----------
  [asan] Optimize Quarantine of secondary allocations

For the secondary allocation we don't need poison and fill memory if we
skip quarantine, and we don't need to poison after quarantine. In both
cases the secondary allocator will unmap memory and unpoison the shadow
from get_allocator().Deallocate().

Depends on D153496.

Reviewed By: thurston

Differential Revision: https://reviews.llvm.org/D153497