[PATCH] D41915: [lldCOFF] Print detailed timing information with /VERBOSE

[Zachary Turner via Phabricator via llvm-commits]

zturner created this revision.
zturner added a reviewer: ruiu.

When passing /VERBOSE, lld will now print detailed timing information about the various linking phases.  For example, when linking clang with /verbose, I get this output:

  Timing:
    Code Layout Time:          (  1.38%)   229 ms
    Commit Output File:        (  0.09%)    15 ms
    PDB Emission (Cumulative): ( 96.03%) 15969 ms
      Globals Stream Layout:   (  1.18%)   197 ms
      Symbol Merging:          ( 26.26%)  4367 ms
      Type Merging:            ( 36.94%)  6142 ms
      TPI Stream Layout:       (  6.95%)  1155 ms
      Commit to Disk:          ( 18.65%)  3101 ms
  -----------------------------------------------
    Total Link Time:           (100.00%) 16629 ms


https://reviews.llvm.org/D41915

Files:
  lld/COFF/Config.h
  lld/COFF/PDB.cpp
  lld/COFF/Writer.cpp
  lld/include/lld/Common/LinkTimer.h

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