OpenCL: introduce support for function scope __local variables
llvm-svn: 140068
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 497aa6c..52a05db 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -3734,6 +3734,13 @@
}
}
+ if (getLangOptions().OpenCL) {
+ // Set up the special work-group-local storage class for variables in the
+ // OpenCL __local address space.
+ if (R.getAddressSpace() == LangAS::opencl_local)
+ SC = SC_OpenCLWorkGroupLocal;
+ }
+
bool isExplicitSpecialization = false;
VarDecl *NewVD;
if (!getLangOptions().CPlusPlus) {
@@ -3883,6 +3890,7 @@
case SC_Static:
case SC_Extern:
case SC_PrivateExtern:
+ case SC_OpenCLWorkGroupLocal:
break;
}
}
@@ -5715,6 +5723,14 @@
}
}
+ // OpenCL 1.1 6.5.2: "Variables allocated in the __local address space inside
+ // a kernel function cannot be initialized."
+ if (VDecl->getStorageClass() == SC_OpenCLWorkGroupLocal) {
+ Diag(VDecl->getLocation(), diag::err_local_cant_init);
+ VDecl->setInvalidDecl();
+ return;
+ }
+
// Capture the variable that is being initialized and the style of
// initialization.
InitializedEntity Entity = InitializedEntity::InitializeVariable(VDecl);
@@ -6131,6 +6147,9 @@
case SC_Register:
Error = 4;
break;
+ case SC_OpenCLWorkGroupLocal:
+ assert(0 && "Unexpected storage class");
+ break;
}
// FIXME: constexpr isn't allowed here.
//if (DS.isConstexprSpecified())