[PATCH] D60454: [OpenCL] Prevent mangling kernel functions

[Anastasia Stulova via Phabricator via cfe-commits]

Anastasia created this revision.
Anastasia added reviewers: rjmccall, bader.
Herald added subscribers: ebevhan, yaxunl.

Kernel function names have to be preserved as in the original source to be able to access them from the host API side.

This patch adds restriction to kernels that prevents them to be used in overloading, templates, etc. This is implemented by enclosing the kernels implicitly into C linkage clause. Therefore all C linkage restrictions will apply to the kernels.


https://reviews.llvm.org/D60454

Files:
  include/clang/Basic/DiagnosticSemaKinds.td
  lib/Sema/SemaDecl.cpp
  test/CodeGenOpenCLCXX/addrspace-of-this.cl
  test/CodeGenOpenCLCXX/local_addrspace_init.cl
  test/SemaOpenCLCXX/kernel_invalid.cl

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