[all-commits] [llvm/llvm-project] 119f97: [scudo] Optimize scudo test string allocation

[Dominic Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 119f977d9e3f8af9f5ac54270e828e354452f903
      https://github.com/llvm/llvm-project/commit/119f977d9e3f8af9f5ac54270e828e354452f903
  Author: Dominic Chen <daming_chen at apple.com>
  Date:   2022-12-12 (Mon, 12 Dec 2022)

  Changed paths:
    M compiler-rt/lib/scudo/standalone/string_utils.h
    M compiler-rt/lib/scudo/standalone/tests/strings_test.cpp

  Log Message:
  -----------
  [scudo] Optimize scudo test string allocation

When the underlying vector becomes full, it resizes, remaps, and then copies over the old data. To avoid thes excess allocations, allow reservation from the backing vector.

Differential Revision: https://reviews.llvm.org/D135119