[PATCH] D124412: [BOLT] Report per-section hotness in bolt-heatmap.

[Rahman Lavaee via Phabricator via llvm-commits]

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Refactoring.


rahmanl added a comment.

WIP.


This patch adds a new feature to bolt heatmap to print the hotness of each section in terms of the percentage of samples within that section.

Sample output generated for the clang binary:

Section Name, Begin Address, End Address, Percentage Hotness
.text, 0x1a7b9b0, 0x20a2cc0, 1.4709
.init, 0x20a2cc0, 0x20a2ce1, 0.0001
.fini, 0x20a2ce4, 0x20a2cf2, 0.0000
.text.unlikely, 0x20a2d00, 0x431990c, 0.3061
.text.hot, 0x4319910, 0x4bc6927, 97.2197
.text.startup, 0x4bc6930, 0x4c10c89, 0.0058
.plt, 0x4c10c90, 0x4c12010, 0.9974


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124412

Files:
  bolt/include/bolt/Core/BinaryContext.h
  bolt/include/bolt/Profile/Heatmap.h
  bolt/lib/Core/BinaryContext.cpp
  bolt/lib/Profile/DataAggregator.cpp
  bolt/lib/Profile/Heatmap.cpp

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