[PATCH] D103542: Fix dfsan handling of musttail calls.

[Andrew via Phabricator via llvm-commits]

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Without this change, a callsite like:

  [[clang::musttail]] return func_call(x);

will cause an error like:

  fatal error: error in backend: failed to perform tail call elimination
  on a call site marked musttail

due to DFSan inserting instrumentation between the musttail call and
the return.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103542

Files:
  llvm/lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
  llvm/test/Instrumentation/DataFlowSanitizer/musttailcall.ll

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