[PATCH] D29704: [XRay] [clang] Allow logging the first argument of a function call.

[Martin Pelikán via Phabricator via cfe-commits]

pelikan created this revision.

Functions with the "xray_log_args" attribute will tell LLVM to emit a special
XRay sled for compiler-rt to copy any call arguments to your logging handler.


https://reviews.llvm.org/D29704

Files:
  include/clang/Basic/Attr.td
  include/clang/Basic/AttrDocs.td
  lib/CodeGen/CodeGenFunction.cpp
  lib/Sema/SemaDeclAttr.cpp
  test/CodeGen/xray-log-args.cpp
  test/Sema/xray-log-args-oob.c
  test/Sema/xray-log-args-oob.cpp

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