================
@@ -172,6 +195,32 @@ CIRRecordLowering::CIRRecordLowering(CIRGenTypes
&cirGenTypes,
zeroInitializable(true), zeroInitializableAsBase(true), packed(packed),
padded(false) {}
+void CIRRecordLowering::setBitFieldInfo(const FieldDecl *fd,
+ CharUnits startOffset,
+ mlir::Type storageType) {
+ CIRGenBitFieldInfo &info = bitFields[fd->getCanonicalDecl()];
+ info.isSigned = fd->getType()->isSignedIntegerOrEnumerationType();
+ info.offset =
+ (unsigned)(getFieldBitOffset(fd) - astContext.toBits(startOffset));
+ info.size = fd->getBitWidthValue();
+ info.storageSize = getSizeInBits(storageType).getQuantity();
+ info.storageOffset = startOffset;
+ info.storageType = storageType;
+ info.name = fd->getName();
+
+ if (info.size > info.storageSize)
+ info.size = info.storageSize;
+ // Reverse the bit offsets for big endian machines. Because we represent
+ // a bitfield as a single large integer load, we can imagine the bits
----------------
andykaylor wrote:
"Because we represent a bitfield as a single large integer load..."
Do we though?
https://github.com/llvm/llvm-project/pull/142041
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