Use values we've already computed, update comment.

No functional change.

llvm-svn: 203681

1 files changed, 3 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
index fe5ded34cbe..581fe226482 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
@@ -1891,10 +1891,9 @@ void DwarfUnit::constructMemberDIE(DIE &Buffer, DIDerivedType DT) {
     uint64_t OffsetInBytes;
 
     if (Size != FieldSize) {
-      // Handle bitfield.
-      addUInt(MemberDie, dwarf::DW_AT_byte_size, None,
-              getBaseTypeSize(DD, DT) >> 3);
-      addUInt(MemberDie, dwarf::DW_AT_bit_size, None, DT.getSizeInBits());
+      // Handle bitfield, assume bytes are 8 bits.
+      addUInt(MemberDie, dwarf::DW_AT_byte_size, None, FieldSize/8);
+      addUInt(MemberDie, dwarf::DW_AT_bit_size, None, Size);
 
       uint64_t Offset = DT.getOffsetInBits();
       uint64_t AlignMask = ~(DT.getAlignInBits() - 1);