[PATCH] D31417: [OpenMP] Add support for omp simd pragmas without runtime

[Graham Hunter via Phabricator via cfe-commits]

huntergr created this revision.
Herald added a subscriber: rengolin.

Adds a new flag ('-fopenmp-simd') to clang which enables processing
of 'simd' and 'declare simd' pragmas without supporting the rest
of OpenMP.

The pragma handler will filter out directives and clauses which
aren't related to simd, and the driver will not add lib(g)omp to
the list of libraries to link.

Documentation updated to describe the new flag.


https://reviews.llvm.org/D31417

Files:
  docs/ClangCommandLineReference.rst
  docs/UsersManual.rst
  include/clang/Basic/LangOptions.def
  include/clang/Driver/Options.td
  lib/CodeGen/CodeGenModule.cpp
  lib/Driver/ToolChains/Clang.cpp
  lib/Frontend/CompilerInvocation.cpp
  lib/Parse/ParsePragma.cpp
  lib/Sema/SemaExpr.cpp
  lib/Sema/SemaOpenMP.cpp
  test/OpenMP/linking.c
  test/OpenMP/simd_only.c

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