[clang] [CIR] Lowering to LLVM for global pointers (PR #125619)

[Erich Keane via cfe-commits]

================
@@ -35,6 +36,54 @@ using namespace llvm;
 namespace cir {
 namespace direct {
 
+class CIRAttrToValue : public CirAttrVisitor<CIRAttrToValue, mlir::Value> {
+public:
+  mlir::Value lowerCirAttrAsValue(mlir::Operation *parentOp,
+                                  mlir::Attribute attr,
+                                  mlir::ConversionPatternRewriter &rewriter,
+                                  const mlir::TypeConverter *converter,
+                                  mlir::DataLayout const &dataLayout) {
+    return visit(attr, parentOp, rewriter, converter, dataLayout);
+  }
+
+  mlir::Value visitCirIntAttr(cir::IntAttr intAttr, mlir::Operation *parentOp,
+                              mlir::ConversionPatternRewriter &rewriter,
+                              const mlir::TypeConverter *converter,
+                              mlir::DataLayout const &dataLayout) {
+    auto loc = parentOp->getLoc();
----------------
erichkeane wrote:

```suggestion
    Location loc = parentOp->getLoc();
```

https://github.com/llvm/llvm-project/pull/125619