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

[Vigneshwar Jayakumar via cfe-commits]

================
@@ -2259,6 +2259,17 @@ QualType Sema::BuildArrayType(QualType T, 
ArraySizeModifier ASM,
              isSFINAEContext() ? diag::err_typecheck_zero_array_size
                                : diag::ext_typecheck_zero_array_size)
             << 0 << ArraySize->getSourceRange();
+
+        // zero sized static arrays are not allowed in HIP device functions
+        if (LangOpts.HIP && LangOpts.CUDAIsDevice) {
----------------
VigneshwarJ wrote:

Thanks for pointing it out, moved the logic to SemaVarDeclaration, also 
checking for the typedef and pointers

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