[PATCH] D15321: [OpenMP 4.0]Parsing and Sema support for 'omp declare target' directive (accelerator support)

[Michael Wong via cfe-commits]

fraggamuffin created this revision.
fraggamuffin added a reviewer: cfe-commits.
fraggamuffin set the repository for this revision to rL LLVM.

Add parsing, sema analysis for 'declare target' construct for OpenMP 4.0.
Summary
The declare target directive specifies that variables, functions (C, C++ and
Fortran), and subroutines (Fortran) are mapped to a device. The declare target
directive is a declarative directive.

The syntax of the declare target directive is as follows:
C/C++
Fortran
The syntax of the declare target directive is as follows:

For variables, functions and subroutines:


```
#pragma omp declare target new-line
declarations-definition-seq
#pragma omp end declare target new-line
```

Codegen will be done in a separate delivery. This is based on the clang-omp github branch adapted for 3.8.
All unit tests passes (note that message test needed to add -fnoopenmp-use-tls to pass specifically the threadprivate part because use-tls is now set to default). All regression passes.
OpenMP 4.5 changes will be delivered separately.


Repository:
  rL LLVM

http://reviews.llvm.org/D15321

Files:
  include/clang/AST/DeclBase.h
  include/clang/AST/DeclOpenMP.h
  include/clang/AST/RecursiveASTVisitor.h
  include/clang/Basic/DeclNodes.td
  include/clang/Basic/DiagnosticParseKinds.td
  include/clang/Basic/DiagnosticSemaKinds.td
  include/clang/Basic/OpenMPKinds.def
  include/clang/Basic/OpenMPKinds.h
  include/clang/Parse/Parser.h
  include/clang/Sema/Sema.h
  include/clang/Serialization/ASTBitCodes.h
  lib/AST/ASTContext.cpp
  lib/AST/Decl.cpp
  lib/AST/DeclBase.cpp
  lib/AST/DeclOpenMP.cpp
  lib/AST/DeclPrinter.cpp
  lib/AST/ItaniumMangle.cpp
  lib/AST/MicrosoftMangle.cpp
  lib/Basic/OpenMPKinds.cpp
  lib/CodeGen/CGDecl.cpp
  lib/CodeGen/CodeGenModule.cpp
  lib/CodeGen/CodeGenModule.h
  lib/Parse/ParseDecl.cpp
  lib/Parse/ParseDeclCXX.cpp
  lib/Parse/ParseOpenMP.cpp
  lib/Parse/Parser.cpp
  lib/Sema/SemaDecl.cpp
  lib/Sema/SemaExpr.cpp
  lib/Sema/SemaLookup.cpp
  lib/Sema/SemaOpenMP.cpp
  lib/Sema/SemaTemplateInstantiate.cpp
  lib/Sema/SemaTemplateInstantiateDecl.cpp
  lib/Serialization/ASTCommon.cpp
  lib/Serialization/ASTReaderDecl.cpp
  lib/Serialization/ASTWriterDecl.cpp
  test/OpenMP/declare_target_ast_print.cpp
  test/OpenMP/declare_target_messages.cpp
  tools/libclang/CIndex.cpp

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