[PATCH] D21698: [OpenCL] Allow user to add supported OpenCL extensions by pragma

[Yaxun Liu via cfe-commits]

yaxunl created this revision.
yaxunl added a reviewer: Anastasia.
yaxunl added subscribers: cfe-commits, bader, pxli168, tstellarAMD.

Allow user to use pragma to add supported extensions:

  #pragma OPENCL EXTENSION the_new_extension_name : register

After that, users can use

  #pragma OPENCL EXTENSION the_new_extension_name : enable/disable

in subsequent code. 


http://reviews.llvm.org/D21698

Files:
  include/clang/Basic/DiagnosticParseKinds.td
  include/clang/Basic/OpenCLOptions.h
  include/clang/Serialization/ASTReader.h
  lib/Basic/Targets.cpp
  lib/Frontend/InitPreprocessor.cpp
  lib/Parse/ParsePragma.cpp
  lib/Sema/DeclSpec.cpp
  lib/Sema/Sema.cpp
  lib/Sema/SemaCast.cpp
  lib/Sema/SemaDecl.cpp
  lib/Sema/SemaExpr.cpp
  lib/Sema/SemaType.cpp
  lib/Serialization/ASTReader.cpp
  lib/Serialization/ASTWriter.cpp
  test/PCH/opencl-extensions.cl
  test/Parser/opencl-pragma.cl
  test/SemaOpenCL/extension-register.cl

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