[PATCH] D91281: [CUDA][HIP] Diagnose reference of host variable

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl marked an inline comment as done.
yaxunl added inline comments.


================
Comment at: clang/lib/Sema/SemaExpr.cpp:357
 
+  if (LangOpts.CUDAIsDevice) {
+    auto *FD = dyn_cast_or_null<FunctionDecl>(CurContext);
----------------
tra wrote:
> This could use a comment why we only check `D->H` references.
Just added a comment: 

Reference of device global variables in host functions is
 allowed through shadow variables therefore it is not diagnosed.


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  https://reviews.llvm.org/D91281/new/

https://reviews.llvm.org/D91281