[all-commits] [llvm/llvm-project] b5a0f0: [ELF] Add ELFFileBase::{elfShdrs, numELFShdrs} to a...

[Fangrui Song via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b5a0f0f397c778cc7db71754c1b9c939f669568e
      https://github.com/llvm/llvm-project/commit/b5a0f0f397c778cc7db71754c1b9c939f669568e
  Author: Fangrui Song <i at maskray.me>
  Date:   2021-12-24 (Fri, 24 Dec 2021)

  Changed paths:
    M lld/ELF/DWARF.cpp
    M lld/ELF/Driver.cpp
    M lld/ELF/InputFiles.cpp
    M lld/ELF/InputFiles.h
    M lld/ELF/InputSection.cpp
    M lld/ELF/Relocations.cpp

  Log Message:
  -----------
  [ELF] Add ELFFileBase::{elfShdrs,numELFShdrs} to avoid duplicate llvm::object::ELFFile::sections()

This mainly avoid `relsOrRelas` cost in `InputSectionBase::relocate`.
`llvm::object::ELFFile::sections()` has redundant and expensive checks.