================
@@ -223,21 +272,114 @@ void CIRRecordLowering::fillOutputFields() {
fieldTypes.size() - 1;
// A field without storage must be a bitfield.
assert(!cir::MissingFeatures::bitfields());
+ if (!member.data)
+ setBitFieldInfo(member.fieldDecl, member.offset, fieldTypes.back());
}
assert(!cir::MissingFeatures::cxxSupport());
}
}
+void CIRRecordLowering::accumulateBitFields(
+ RecordDecl::field_iterator field, RecordDecl::field_iterator fieldEnd) {
+ // Run stores the first element of the current run of bitfields. FieldEnd is
+ // used as a special value to note that we don't have a current run. A
+ // bitfield run is a contiguous collection of bitfields that can be stored in
+ // the same storage block. Zero-sized bitfields and bitfields that would
+ // cross an alignment boundary break a run and start a new one.
+ RecordDecl::field_iterator run = fieldEnd;
+ // Tail is the offset of the first bit off the end of the current run. It's
+ // used to determine if the ASTRecordLayout is treating these two bitfields
as
+ // contiguous. StartBitOffset is offset of the beginning of the Run.
----------------
andykaylor wrote:
```suggestion
// contiguous. 'startBitOffset' is offset of the beginning of the run.
```
https://github.com/llvm/llvm-project/pull/142041
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