[PATCH] D20444: [OpenCL] Include opencl-c.h by default as a module

[Yaxun Liu via cfe-commits]

yaxunl created this revision.
yaxunl added reviewers: Anastasia, pxli168, bader, rsmith.
yaxunl added a subscriber: cfe-commits.

Include opencl-c.h by default as a module to utilize the automatic AST caching mechanism of module.

Add an option -fno-default-header to disable default header for OpenCL.

This is an attempting effort to elicit further discussions.

http://reviews.llvm.org/D20444

Files:
  include/clang/Basic/LangOptions.def
  include/clang/Driver/CC1Options.td
  include/clang/Frontend/CompilerInvocation.h
  lib/Frontend/CompilerInvocation.cpp
  lib/Headers/module.modulemap
  test/CodeGenOpenCL/bool_cast.cl
  test/Headers/opencl-c-header.cl
  test/Parser/opencl-atomics-cl20.cl

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