[PATCH] D37964: [XRay][tools] Support tail-call exits before we write them in the runtime

[Dean Michael Berris via Phabricator via llvm-commits]

dberris created this revision.

This change adds support for explicit tail-exit records to be written by
the XRay runtime. This lets us differentiate the tail exit
records/events in the log, and allows us to treat those exit events
especially in the future. For now we allow printing those out in YAML
(and reading them in).


https://reviews.llvm.org/D37964

Files:
  include/llvm/XRay/XRayRecord.h
  include/llvm/XRay/YAMLXRayRecord.h
  lib/XRay/Trace.cpp
  tools/llvm-xray/xray-account.cc
  tools/llvm-xray/xray-converter.cc
  tools/llvm-xray/xray-graph.cc
  tools/llvm-xray/xray-stacks.cc

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