[clang] [CIR] Add support for calling virtual functions (PR #153893)

[Erich Keane via cfe-commits]

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@@ -157,6 +157,19 @@ class CIRBaseBuilderTy : public mlir::OpBuilder {
     return create<cir::ComplexImagOp>(loc, operandTy.getElementType(), operand);
   }
 
+  cir::LoadOp createLoad(mlir::Location loc, mlir::Value ptr,
+                         uint64_t alignment = 0) {
+    mlir::IntegerAttr alignmentAttr = getAlignmentAttr(alignment);
+    assert(!cir::MissingFeatures::opLoadStoreVolatile());
+    assert(!cir::MissingFeatures::opLoadStoreMemOrder());
+    return create<cir::LoadOp>(loc, ptr, /*isDeref=*/false, alignmentAttr);
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erichkeane wrote:

Since you bugged me about it before, should this be `cir::LoadOp::Create`?

https://github.com/llvm/llvm-project/pull/153893