[PATCH] D83595: [Draft][MSAN] Optimize away poisoning allocas that are always written before load

[Gui Andrade via Phabricator via llvm-commits]

guiand updated this revision to Diff 282099.
guiand added a comment.

I've cut it down to only within a basic block as @eugenis and @vitalybuka suggested.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D83595/new/

https://reviews.llvm.org/D83595

Files:
  compiler-rt/test/msan/getaddrinfo.cpp
  compiler-rt/test/msan/qsort.cpp
  llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp
  llvm/test/Instrumentation/MemorySanitizer/alloca-store.ll
  llvm/test/Instrumentation/MemorySanitizer/alloca.ll
  llvm/test/Instrumentation/MemorySanitizer/msan_x86_bts_asm.ll

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