[PATCH] D55660: [SampleFDO] handle ProfileSampleAccurate when initializing function entry count

[Wei Mi via Phabricator via llvm-commits]

wmi created this revision.
wmi added reviewers: eraman, tejohnson, danielcdh.

ProfileSampleAccurate is used to indicate the profile has exact match to the code to be optimized.

Previously ProfileSampleAccurate is handled in ProfileSummaryInfo::isColdCallSite and ProfileSummaryInfo::isColdBlock. A better solution is to initialize function entry count to 0 when ProfileSampleAccurate is true, so we don't have to handle ProfileSampleAccurate in multiple places.

Thanks to Easwaran for the idea to the improvement.


Repository:
  rL LLVM

https://reviews.llvm.org/D55660

Files:
  lib/Analysis/ProfileSummaryInfo.cpp
  lib/Transforms/IPO/SampleProfile.cpp
  test/Transforms/CodeGenPrepare/section-samplepgo.ll
  test/Transforms/Inline/inline-cold-callsite-samplepgo.ll
  test/Transforms/SampleProfile/inline-cold-callsite-samplepgo.ll
  test/Transforms/SampleProfile/section-accurate-samplepgo.ll

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