[PATCH] D17491: Add performance check to flag function parameters of expensive to copy types that can be safely converted to const references.

[Felix Berger via cfe-commits]

flx created this revision.
flx added a reviewer: alexfh.
flx added a subscriber: cfe-commits.
flx set the repository for this revision to rL LLVM.

The patch uses [[ http://reviews.llvm.org/D17488 | D17488 ]] as diff base. Once D17488 is submitted I'll update the diffbase to head.

Repository:
  rL LLVM

http://reviews.llvm.org/D17491

Files:
  clang-tidy/performance/CMakeLists.txt
  clang-tidy/performance/PerformanceTidyModule.cpp
  clang-tidy/performance/UnnecessaryValueParamCheck.cpp
  clang-tidy/performance/UnnecessaryValueParamCheck.h
  docs/clang-tidy/checks/list.rst
  docs/clang-tidy/checks/performance-unnecessary-value-param.rst
  test/clang-tidy/performance-unnecessary-value-param.cpp

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