llvm-project

f905935f - Fix tbaa.struct metadata for bitfields using big endian. (#87753)

Fix tbaa.struct metadata for bitfields using big endian. (#87753) When generating tbaa.struct metadata we treat multiple adjacent bitfields as a single "field", with one corresponding entry in the metadata. At the moment this is achieved by adding an entry for the first bitfield in the run using its StorageSize and skipping the remaining bitfields. The problem is that "first" is determined by checking that the Offset of the field in the run is 0, which breaks for big endian. PR: https://github.com/llvm/llvm-project/pull/87753