[PATCH] D147651: [PseudoProbe] Encode/Decode FS discriminator

[Hongtao Yu via Phabricator via llvm-commits]

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Encoding FS discriminators for block probes. Decoding them correspondingly.

The encoding/decoding of FS discriminators are conditional, only for probes with a non-zero discriminator. This saves encoding size, also ensures downwards-compatiblity.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D147651

Files:
  llvm/include/llvm/IR/PseudoProbe.h
  llvm/include/llvm/MC/MCPseudoProbe.h
  llvm/include/llvm/MC/MCStreamer.h
  llvm/lib/CodeGen/AsmPrinter/PseudoProbePrinter.cpp
  llvm/lib/MC/MCAsmStreamer.cpp
  llvm/lib/MC/MCParser/AsmParser.cpp
  llvm/lib/MC/MCPseudoProbe.cpp
  llvm/lib/MC/MCStreamer.cpp
  llvm/test/Transforms/SampleProfile/pseudo-probe-emit-inline.ll
  llvm/test/Transforms/SampleProfile/pseudo-probe-emit.ll
  llvm/test/tools/llvm-profgen/Inputs/fs-discriminator-probe.perfbin
  llvm/test/tools/llvm-profgen/pseudoprobe-decoding-discriminator.test

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