[PATCH] D27243: Initial work on the XRay Graph tool.

[Alexis Shaw via Phabricator via llvm-commits]

varno created this revision.
varno added reviewers: dberris, dblaikie.
varno added subscribers: dberris, mgorny, llvm-commits.
varno added a dependency: D24377: [XRay] Implement the `llvm-xray account` subcommand.

[XRay] Implement the `llvm-xray graph` subcommand

This is an innitial change to implement a new subcommand for the `llvm-xray` tool.

Here we define the `graph` subcommand which generates a graph from the function
call information and uses it to present the call information graphically with
additional annotations. This tool was originally proposed by dberris.

Depends on https://reviews.llvm.org/D24377.


https://reviews.llvm.org/D27243

Files:
  tools/llvm-xray/CMakeLists.txt
  tools/llvm-xray/xray-graph.cc
  tools/llvm-xray/xray-graph.h

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