diff options
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp index 7e1a9879c67..7797ff4273a 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp @@ -748,12 +748,17 @@ void DwarfUnit::addBlockByrefAddress(const DbgVariable &DV, DIE &Die, /// Return true if type encoding is unsigned. static bool isUnsignedDIType(DwarfDebug *DD, DIType Ty) { DIDerivedType DTy(Ty); - if (DTy.isDerivedType()) - return isUnsignedDIType(DD, DD->resolve(DTy.getTypeDerivedFrom())); + if (DTy.isDerivedType()) { + if (DIType Deriv = DD->resolve(DTy.getTypeDerivedFrom())) + return isUnsignedDIType(DD, Deriv); + // FIXME: Enums without a fixed underlying type have unknown signedness + // here, leading to incorrectly emitted constants. + assert(DTy.getTag() == dwarf::DW_TAG_enumeration_type); + return false; + } DIBasicType BTy(Ty); - if (!BTy.isBasicType()) - return false; + assert(BTy.isBasicType()); unsigned Encoding = BTy.getEncoding(); assert(Encoding == dwarf::DW_ATE_unsigned || Encoding == dwarf::DW_ATE_unsigned_char || |
