================
@@ -372,9 +372,11 @@ Address CIRGenFunction::getAddrOfBitFieldStorage(LValue
base,
unsigned index) {
mlir::Location loc = getLoc(field->getLocation());
cir::PointerType fieldPtr = cir::PointerType::get(fieldType);
+ auto rec = cast<cir::RecordType>(base.getAddress().getElementType());
+ if (index == 0 && rec.isUnion())
----------------
Andres-Salamanca wrote:
```diff
- loc, fieldPtr, base.getPointer(), field->getName(), index);
+ loc, fieldPtr, base.getPointer(), field->getName(), rec.isUnion() ?
field->getFieldIndex() : index);
```
I changed it to use `field->getFieldIndex()`, similar to how
`CIRGenFunction::emitAddrOfFieldStorage` does.
https://github.com/llvm/llvm-project/pull/154398
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