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Bitfield support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26593 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1334,20 +1334,32 @@ DIE *DwarfWriter::NewType(DIE *Context, TypeDesc *TyDesc) {
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if (CompileUnitDesc *File = MemberDesc->getFile()) {
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CompileUnit *FileUnit = FindCompileUnit(File);
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unsigned FileID = FileUnit->getID();
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int Line = TyDesc->getLine();
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int Line = MemberDesc->getLine();
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Member->AddUInt(DW_AT_decl_file, 0, FileID);
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Member->AddUInt(DW_AT_decl_line, 0, Line);
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}
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// FIXME - Bitfields not quite right but getting there.
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uint64_t ByteSize = Size;
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uint64_t ByteOffset = Offset;
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if (TypeDesc *FromTy = MemberDesc->getFromType()) {
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Member->AddDIEntry(DW_AT_type, DW_FORM_ref4,
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NewType(Context, FromTy));
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ByteSize = FromTy->getSize();
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}
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if (ByteSize != Size) {
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ByteOffset -= Offset % ByteSize;
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Member->AddUInt(DW_AT_byte_size, 0, ByteSize >> 3);
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Member->AddUInt(DW_AT_bit_size, 0, Size % ByteSize);
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Member->AddUInt(DW_AT_bit_offset, 0, Offset - ByteOffset);
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}
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// Add computation for offset.
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DIEBlock *Block = new DIEBlock();
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Block->AddUInt(DW_FORM_data1, DW_OP_plus_uconst);
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Block->AddUInt(DW_FORM_udata, Offset >> 3);
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Block->AddUInt(DW_FORM_udata, ByteOffset >> 3);
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Block->ComputeSize(*this);
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Member->AddBlock(DW_AT_data_member_location, 0, Block);
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