[PATCH] D25143: [CUDA] Disallow __shared__ variables in host functions.

[Justin Lebar via cfe-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL284144: [CUDA] Disallow __shared__ variables in host functions. (authored by jlebar).

Changed prior to commit:
  https://reviews.llvm.org/D25143?vs=73172&id=74565#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D25143

Files:
  cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
  cfe/trunk/lib/Sema/SemaDeclAttr.cpp
  cfe/trunk/test/SemaCUDA/bad-attributes.cu


Index: cfe/trunk/lib/Sema/SemaDeclAttr.cpp
===================================================================
--- cfe/trunk/lib/Sema/SemaDeclAttr.cpp
+++ cfe/trunk/lib/Sema/SemaDeclAttr.cpp
@@ -3724,6 +3724,10 @@
     S.Diag(Attr.getLoc(), diag::err_cuda_extern_shared) << VD;
     return;
   }
+  if (S.getLangOpts().CUDA && VD->hasLocalStorage() &&
+      S.CUDADiagIfHostCode(Attr.getLoc(), diag::err_cuda_host_shared)
+          << S.CurrentCUDATarget())
+    return;
   D->addAttr(::new (S.Context) CUDASharedAttr(
       Attr.getRange(), S.Context, Attr.getAttributeSpellingListIndex()));
 }
Index: cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
===================================================================
--- cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
+++ cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
@@ -6747,6 +6747,9 @@
     "cannot use variable-length arrays in "
     "%select{__device__|__global__|__host__|__host__ __device__}0 functions">;
 def err_cuda_extern_shared : Error<"__shared__ variable %0 cannot be 'extern'">;
+def err_cuda_host_shared : Error<
+    "__shared__ local variables not allowed in "
+    "%select{__device__|__global__|__host__|__host__ __device__}0 functions">;
 def err_cuda_nonglobal_constant : Error<"__constant__ variables must be global">;
 
 def warn_non_pod_vararg_with_format_string : Warning<
Index: cfe/trunk/test/SemaCUDA/bad-attributes.cu
===================================================================
--- cfe/trunk/test/SemaCUDA/bad-attributes.cu
+++ cfe/trunk/test/SemaCUDA/bad-attributes.cu
@@ -65,6 +65,7 @@
 __constant__ int global_constant;
 void host_fn() {
   __constant__ int c; // expected-error {{__constant__ variables must be global}}
+  __shared__ int s; // expected-error {{__shared__ local variables not allowed in __host__ functions}}
 }
 __device__ void device_fn() {
   __constant__ int c; // expected-error {{__constant__ variables must be global}}


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