[clang] [RFC][Clang] Add __builtin_pointee_address_space (PR #210242)

[Yaxun Liu via cfe-commits]

================
@@ -115,6 +99,112 @@ inline bool isPtrSizeAddressSpace(LangAS AS) {
           AS == LangAS::ptr64);
 }
 
+namespace PointeeAddressSpace {
+
+enum ID : unsigned {
+  Default = 0,
+  OpenCLGlobal = 1,
+  OpenCLLocal = 2,
+  OpenCLConstant = 3,
+  OpenCLPrivate = 4,
+  OpenCLGeneric = 5,
+  OpenCLGlobalDevice = 6,
+  OpenCLGlobalHost = 7,
----------------
yxsamliu wrote:

Thanks. I removed the separate values and macros for these deprecated OpenCL and SYCL address spaces. The builtin now reports them as their corresponding global address space, with OpenCL and SYCL tests.

https://github.com/llvm/llvm-project/pull/210242