1 //===-- llvm/CodeGen/MachineModuleInfo.cpp ----------------------*- C++ -*-===//
8 //===----------------------------------------------------------------------===//
57     /// Symbols - The symbols for the label.
66   /// BBCallbacks - Callbacks for the BasicBlock's that we have entries for.  We
70   /// DeletedAddrLabelsNeedingEmission - This is a per-function list of symbols
95   assert(BB->hasAddressTaken() &&  in getAddrLabelSymbolToEmit()
101     assert(BB->getParent() == Entry.Fn && "Parent changed");  in getAddrLabelSymbolToEmit()
109   Entry.Index = BBCallbacks.size() - 1;  in getAddrLabelSymbolToEmit()
110   Entry.Fn = BB->getParent();  in getAddrLabelSymbolToEmit()
115 /// takeDeletedSymbolsForFunction - If we have any deleted symbols for F, return
126   std::swap(Result, I->second);  in takeDeletedSymbolsForFunction()
140   assert((BB->getParent() == nullptr || BB->getParent() == Entry.Fn) &&  in UpdateForDeletedBlock()
144     if (Sym->isDefined())  in UpdateForDeletedBlock()
179   Map->UpdateForDeletedBlock(cast<BasicBlock>(getValPtr()));  in deleted()
183   Map->UpdateForRAUWBlock(cast<BasicBlock>(getValPtr()), cast<BasicBlock>(V2));  in allUsesReplacedWith()
187 //===----------------------------------------------------------------------===//
236 /// EndFunction - Discard function meta information.
255 //===- Address of Block Management ----------------------------------------===//
257 /// getAddrLabelSymbolToEmit - Return the symbol to be used for the specified
265  return AddrLabelSymbols->getAddrLabelSymbolToEmit(const_cast<BasicBlock*>(BB));  in getAddrLabelSymbolToEmit()
269 /// takeDeletedSymbolsForFunction - If the specified function has had any
270 /// references to address-taken blocks generated, but the block got deleted,
278   return AddrLabelSymbols->  in takeDeletedSymbolsForFunction()
282 //===- EH -----------------------------------------------------------------===//
284 /// getOrCreateLandingPadInfo - Find or create an LandingPadInfo for the
290     LandingPadInfo &LP = LandingPads[i];  in getOrCreateLandingPadInfo()  local
291     if (LP.LandingPadBlock == LandingPad)  in getOrCreateLandingPadInfo()
292       return LP;  in getOrCreateLandingPadInfo()
299 /// addInvoke - Provide the begin and end labels of an invoke style call and
303   LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);  in addInvoke()  local
304   LP.BeginLabels.push_back(BeginLabel);  in addInvoke()
305   LP.EndLabels.push_back(EndLabel);  in addInvoke()
308 /// addLandingPad - Provide the label of a try LandingPad block.
312   LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);  in addLandingPad()  local
313   LP.LandingPadLabel = LandingPadLabel;  in addLandingPad()
324 /// addCatchTypeInfo - Provide the catch typeinfo for a landing pad.
329   LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);  in addCatchTypeInfo()  local
330   for (unsigned N = TyInfo.size(); N; --N)  in addCatchTypeInfo()
331     LP.TypeIds.push_back(getTypeIDFor(TyInfo[N - 1]));  in addCatchTypeInfo()
334 /// addFilterTypeInfo - Provide the filter typeinfo for a landing pad.
339   LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);  in addFilterTypeInfo()  local
343   LP.TypeIds.push_back(getFilterIDFor(IdsInFilter));  in addFilterTypeInfo()
346 /// addCleanup - Add a cleanup action for a landing pad.
349   LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);  in addCleanup()  local
350   LP.TypeIds.push_back(0);  in addCleanup()
356   LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);  in addSEHCatchHandler()  local
360   LP.SEHHandlers.push_back(Handler);  in addSEHCatchHandler()
365   LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);  in addSEHCleanupHandler()  local
369   LP.SEHHandlers.push_back(Handler);  in addSEHCleanupHandler()
372 /// TidyLandingPads - Remap landing pad labels and remove any deleted landing
378         !LandingPad.LandingPadLabel->isDefined() &&  in TidyLandingPads()
382     // Special case: we *should* emit LPs with null LP MBB. This indicates  in TidyLandingPads()
392       if ((BeginLabel->isDefined() ||  in TidyLandingPads()
394           (EndLabel->isDefined() ||  in TidyLandingPads()
399       --j, --e;  in TidyLandingPads()
402     // Remove landing pads with no try-ranges.  in TidyLandingPads()
417 /// setCallSiteLandingPad - Map the landing pad's EH symbol to the call site
424 /// getTypeIDFor - Return the type id for the specified typeinfo.  This is
434 /// getFilterIDFor - Return the filter id for the specified typeinfos.  This is
438   // re-use the existing filter.  Folding filters more than this requires  in getFilterIDFor()
439   // re-ordering filters and/or their elements - probably not worth it.  in getFilterIDFor()
445       if (FilterIds[--i] != TyIds[--j])  in getFilterIDFor()
450       return -(1 + i);  in getFilterIDFor()
456   int FilterID = -(1 + FilterIds.size());  in getFilterIDFor()