[all-commits] [llvm/llvm-project] e766e3: [clang][deps] Print timing information

[Jan Svoboda via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e766e3afedeba90dfbd0513a675a9bf32c5cc8e9
      https://github.com/llvm/llvm-project/commit/e766e3afedeba90dfbd0513a675a9bf32c5cc8e9
  Author: Jan Svoboda <jan_svoboda at apple.com>
  Date:   2023-04-20 (Thu, 20 Apr 2023)

  Changed paths:
    A clang/test/ClangScanDeps/print-timing.c
    M clang/tools/clang-scan-deps/ClangScanDeps.cpp
    M clang/tools/clang-scan-deps/Opts.td

  Log Message:
  -----------
  [clang][deps] Print timing information

This patch adds new `-print-timing` option to `clang-scan-deps`. It measures the wall and process time taken to scan dependencies for the compilation database. This provides more representative data compared to measuring the timing for the whole tool invocation, since that includes parsing and generating JSON files, which can be significant for larger inputs.

Reviewed By: akyrtzi

Differential Revision: https://reviews.llvm.org/D147815