[llvm-branch-commits] [clang] [HLSL] Global resource arrays element access (PR #152454)

[Finn Plummer via llvm-branch-commits]

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@@ -4532,6 +4533,15 @@ LValue CodeGenFunction::EmitArraySubscriptExpr(const ArraySubscriptExpr *E,
                                  LHS.getBaseInfo(), TBAAAccessInfo());
   }
 
+  // The HLSL runtime handle the subscript expression on global resource arrays.
+  if (getLangOpts().HLSL && (E->getType()->isHLSLResourceRecord() ||
+                             E->getType()->isHLSLResourceRecordArray())) {
+    std::optional<LValue> LV =
+        CGM.getHLSLRuntime().emitResourceArraySubscriptExpr(E, *this);
+    if (LV.has_value())
+      return *LV;
+  }
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inbelic wrote:

It seems strange to me to only conditionally return here. Curious if that ever happens?

https://github.com/llvm/llvm-project/pull/152454