[all-commits] [llvm/llvm-project] 3580a4: [GWP-ASan] Move random-related code in the allocat...

[Kostya Kortchinsky via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 3580a45014e90a9895cc2dec28ab2e7f78c47470
      https://github.com/llvm/llvm-project/commit/3580a45014e90a9895cc2dec28ab2e7f78c47470
  Author: Kostya Kortchinsky <kostyak at google.com>
  Date:   2020-10-22 (Thu, 22 Oct 2020)

  Changed paths:
    M compiler-rt/lib/gwp_asan/CMakeLists.txt
    M compiler-rt/lib/gwp_asan/guarded_pool_allocator.cpp
    M compiler-rt/lib/gwp_asan/guarded_pool_allocator.h
    M compiler-rt/lib/gwp_asan/options.inc
    M compiler-rt/lib/gwp_asan/platform_specific/guarded_pool_allocator_posix.cpp
    R compiler-rt/lib/gwp_asan/random.cpp
    R compiler-rt/lib/gwp_asan/random.h

  Log Message:
  -----------
  [GWP-ASan] Move random-related code in the allocator (redo)

This is a redo of D89908, which triggered some `-Werror=conversion`
errors with GCC due to assignments to the 31-bit variable.

This CL adds to the original one a 31-bit mask variable that is used
at every assignment to silence the warning.

Differential Revision: https://reviews.llvm.org/D89984