diff options
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp b/llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp index 3bfcaa96593..a685d2e23d5 100644 --- a/llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp @@ -455,12 +455,20 @@ void Win64Exception::emitCXXFrameHandler3Table(const MachineFunction *MF) { const MCSymbolRefExpr *ParentFrameOffsetRef = MCSymbolRefExpr::Create( ParentFrameOffset, MCSymbolRefExpr::VK_None, Asm->OutContext); - MCSymbol *FrameAllocOffset = - Asm->OutContext.getOrCreateFrameAllocSymbol( - GlobalValue::getRealLinkageName(F->getName()), - HT.CatchObjRecoverIdx); - const MCSymbolRefExpr *FrameAllocOffsetRef = MCSymbolRefExpr::Create( - FrameAllocOffset, MCSymbolRefExpr::VK_None, Asm->OutContext); + // Get the frame escape label with the offset of the catch object. If + // the index is -1, then there is no catch object, and we should emit an + // offset of zero, indicating that no copy will occur. + const MCExpr *FrameAllocOffsetRef = nullptr; + if (HT.CatchObjRecoverIdx >= 0) { + MCSymbol *FrameAllocOffset = + Asm->OutContext.getOrCreateFrameAllocSymbol( + GlobalValue::getRealLinkageName(F->getName()), + HT.CatchObjRecoverIdx); + FrameAllocOffsetRef = MCSymbolRefExpr::Create( + FrameAllocOffset, MCSymbolRefExpr::VK_None, Asm->OutContext); + } else { + FrameAllocOffsetRef = MCConstantExpr::Create(0, Asm->OutContext); + } OS.EmitIntValue(HT.Adjectives, 4); // Adjectives OS.EmitValue(createImageRel32(HT.TypeDescriptor), 4); // Type |
