[PATCH] D25139: [CUDA] Add Sema::CUDADiagBuilder and Sema::CUDADiagIfDeviceCode().

[Justin Lebar via cfe-commits]

jlebar created this revision.
jlebar added a reviewer: rnk.
jlebar added subscribers: tra, cfe-commits.

Together these let you easily create diagnostics that

- are never emitted for host code
- are always emitted for __device__ and __global__ functions, and
- are emitted for __host__ __device__ functions iff these functions are codegen'ed.

At the moment there are only three diagnostics that need this treatment,
but I have more to add, and it's not sustainable to write code for emitting
every such diagnostic twice, and from a special wrapper in SemaCUDA.cpp.

While we're at it, don't emit the function name in
err_cuda_device_exceptions: It's not necessary to print it, and making
this work in the new framework in the face of a null value for
dyn_cast<FunctionDecl>(CurContext) isn't worth the effort.


https://reviews.llvm.org/D25139

Files:
  clang/include/clang/Basic/DiagnosticSemaKinds.td
  clang/include/clang/Sema/Sema.h
  clang/lib/Sema/SemaCUDA.cpp
  clang/lib/Sema/SemaExprCXX.cpp
  clang/lib/Sema/SemaStmt.cpp
  clang/lib/Sema/SemaType.cpp
  clang/test/SemaCUDA/exceptions-host-device.cu
  clang/test/SemaCUDA/exceptions.cu

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