[PATCH] D82313: [OpenCL] Reject block arguments

[Sven van Haastregt via Phabricator via cfe-commits]

svenvh created this revision.
svenvh added a reviewer: Anastasia.
Herald added a subscriber: yaxunl.

OpenCL 2.0 does not allow block arguments, primarily because it is
difficult to support function pointers on the various architectures
that OpenCL targets.  Clang was still accepting them.

Rename and reuse the `err_opencl_half_param` diagnostic.

Fixes PR46324.


https://reviews.llvm.org/D82313

Files:
  clang/include/clang/Basic/DiagnosticSemaKinds.td
  clang/lib/Sema/SemaType.cpp
  clang/test/CodeGenOpenCL/blocks.cl
  clang/test/Frontend/opencl.cl
  clang/test/SemaOpenCL/invalid-block.cl

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