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PR22356: DebugInfo: Handle the size of a member where the type of that member is a typedef (or other sugar) of a declaration.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227290 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2015-01-28 02:34:53 +00:00
parent 2edbad28d2
commit f02ea34fb2
2 changed files with 83 additions and 79 deletions
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7
lib/CodeGen/AsmPrinter/DwarfUnit.cpp
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@ -627,10 +627,7 @@ static uint64_t getBaseTypeSize(DwarfDebug *DD, DIDerivedType Ty) {
DIType BaseType = DD->resolve(Ty.getTypeDerivedFrom());
// If this type is not derived from any type or the type is a declaration then
// take conservative approach.
if (!BaseType.isValid() || BaseType.isForwardDecl())
return Ty.getSizeInBits();
assert(BaseType.isValid());
// If this is a derived type, go ahead and get the base type, unless it's a
// reference then it's just the size of the field. Pointer types have no need
@ -1474,7 +1471,7 @@ void DwarfUnit::constructMemberDIE(DIE &Buffer, DIDerivedType DT) {
uint64_t FieldSize = getBaseTypeSize(DD, DT);
uint64_t OffsetInBytes;
if (Size != FieldSize) {
if (FieldSize && Size != FieldSize) {
// 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);