[clang] [OpenACC][CIR] Implement 'self' lowering on compute constructs (PR #135851)

[Erich Keane via cfe-commits]

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@@ -430,6 +430,11 @@ class OpenACCSelfClause final
   }
 
   bool isConditionExprClause() const { return HasConditionExpr.has_value(); }
+  bool isVarListClause() const { return !isConditionExprClause(); }
+  bool isEmptySelfClause() const {
+    return (isConditionExprClause() && !hasConditionExpr()) ||
+           (!isConditionExprClause() && getVarList().empty());
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erichkeane wrote:

These convenience functions made a lot of sense/got good use in codegen, so they seemed sensible to add.

https://github.com/llvm/llvm-project/pull/135851