[all-commits] [llvm/llvm-project] 6e6033: [SampleFDO] Read call-graph matching recovered top...

[Lei Wang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6e60330af55bfdf5b34aed4c9197cd3afbf00498
      https://github.com/llvm/llvm-project/commit/6e60330af55bfdf5b34aed4c9197cd3afbf00498
  Author: Lei Wang <wlei at fb.com>
  Date:   2024-09-04 (Wed, 04 Sep 2024)

  Changed paths:
    M llvm/include/llvm/ProfileData/SampleProfReader.h
    M llvm/include/llvm/Transforms/IPO/SampleProfileMatcher.h
    M llvm/lib/Transforms/IPO/SampleProfileMatcher.cpp
    A llvm/test/Transforms/SampleProfile/Inputs/pseudo-probe-stale-profile-toplev-func.prof
    A llvm/test/Transforms/SampleProfile/pseudo-probe-stale-profile-toplev-func.ll

  Log Message:
  -----------
  [SampleFDO] Read call-graph matching recovered top-level function profile (#101053)

With extbinary profile format, initial profile loading only reads
profile based on current function names in the module. However, if a
function is renamed, sample loader skips to load its original
profile(which has a different name), we will miss this case. To address
this, we load the top-level profile candidate explicitly for the
matching. If a match is found later, the function profile will be
further preserved for use by the sample loader.



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