[clang] [CIR] Implement part of ConstantExpr support for ScalarExpr (PR #173009)

[Amr Hesham via cfe-commits]

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@@ -141,6 +141,23 @@ class ScalarExprEmitter : public StmtVisitor<ScalarExprEmitter, mlir::Value> {
   }
 
   mlir::Value VisitConstantExpr(ConstantExpr *e) {
+    // A constant expression of type 'void' generates no code and produces no
+    // value.
+    if (e->getType()->isVoidType()) {
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AmrDeveloper wrote:

Thank you, I updated it

https://github.com/llvm/llvm-project/pull/173009