[PATCH] D120860: [memprof] Filter out callstack frames which cannot be symbolized.

[Snehasish Kumar via Phabricator via llvm-commits]

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This patch filters out callstack frames which can't be symbolized or if
the frames belong to the runtime. Symbolization may not be possible if
debug information is unavailable or if the addresses are from a shared
library. For now we only support optimization of the main binary which
is statically linked to the compiler runtime.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D120860

Files:
  llvm/lib/ProfileData/RawMemProfReader.cpp
  llvm/test/tools/llvm-profdata/memprof-basic.test
  llvm/test/tools/llvm-profdata/memprof-multi.test
  llvm/unittests/ProfileData/MemProfTest.cpp

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