[clang] [Clang/AMDGPU] Zero sized arrays not allowed in HIP device code. (PR #113470)

[Eli Friedman via cfe-commits]

================
@@ -8714,6 +8714,21 @@ void Sema::CheckVariableDeclarationType(VarDecl *NewVD) {
     }
   }
 
+  // zero sized static arrays are not allowed in HIP device functions
+  if (LangOpts.CUDAIsDevice && LangOpts.HIP) {
+    if (FunctionDecl *FD = getCurFunctionDecl();
+        FD &&
+        (FD->hasAttr<CUDADeviceAttr>() || FD->hasAttr<CUDAGlobalAttr>())) {
----------------
efriedma-quic wrote:

I'd prefer some reuse, even if you need some additional checks.

https://github.com/llvm/llvm-project/pull/113470
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