[all-commits] [llvm/llvm-project] dfcf1a: [ELF] Improve 2 SmallVector<*, N> usage

[Fangrui Song via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: dfcf1acf13226be0f599a7ab6b395b66dc9545d6
      https://github.com/llvm/llvm-project/commit/dfcf1acf13226be0f599a7ab6b395b66dc9545d6
  Author: Fangrui Song <i at maskray.me>
  Date:   2020-11-29 (Sun, 29 Nov 2020)

  Changed paths:
    M lld/ELF/MarkLive.cpp
    M lld/ELF/OutputSections.h

  Log Message:
  -----------
  [ELF] Improve 2 SmallVector<*, N> usage

For --gc-sections, SmallVector<InputSection *, 256> -> SmallVector<InputSection *, 0> because the code bloat (1296 bytes) is not worthwhile (the saved reallocation is negligible).
For OutputSection::compressedData, N=1 is useless (for a compressed .debug_*, the size is always larger than 1).