From: Andrew Kaylor Date: Mon, 11 May 2015 19:41:19 +0000 (+0000) Subject: [WinEH] Update exception numbering to give handlers their own base state. X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=aeeca679f7bfb5b1e68b1c41762e31e1d8924f63;p=oota-llvm.git [WinEH] Update exception numbering to give handlers their own base state. Differential Revision: http://reviews.llvm.org/D9512 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237014 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/include/llvm/CodeGen/WinEHFuncInfo.h b/include/llvm/CodeGen/WinEHFuncInfo.h index 5fc2b126db8..904e01c448a 100644 --- a/include/llvm/CodeGen/WinEHFuncInfo.h +++ b/include/llvm/CodeGen/WinEHFuncInfo.h @@ -136,6 +136,7 @@ struct WinEHFuncInfo { DenseMap CatchHandlerParentFrameObjIdx; DenseMap CatchHandlerParentFrameObjOffset; DenseMap CatchHandlerMaxState; + DenseMap HandlerBaseState; SmallVector UnwindMap; SmallVector TryBlockMap; SmallVector, 4> IPToStateList; diff --git a/lib/CodeGen/AsmPrinter/Win64Exception.cpp b/lib/CodeGen/AsmPrinter/Win64Exception.cpp index b89ca011648..72aa4214f9a 100644 --- a/lib/CodeGen/AsmPrinter/Win64Exception.cpp +++ b/lib/CodeGen/AsmPrinter/Win64Exception.cpp @@ -299,6 +299,17 @@ void Win64Exception::emitCXXFrameHandler3Table(const MachineFunction *MF) { // The parent function and the catch handlers contribute to the 'ip2state' // table. + + // Include ip2state entries for the beginning of the main function and + // for catch handler functions. + if (F == ParentF) { + FuncInfo.IPToStateList.push_back(std::make_pair(LastLabel, -1)); + LastEHState = -1; + } else if (FuncInfo.HandlerBaseState.count(F)) { + FuncInfo.IPToStateList.push_back(std::make_pair(LastLabel, + FuncInfo.HandlerBaseState[F])); + LastEHState = FuncInfo.HandlerBaseState[F]; + } for (const auto &MBB : *MF) { for (const auto &MI : MBB) { if (!MI.isEHLabel()) { @@ -323,7 +334,8 @@ void Win64Exception::emitCXXFrameHandler3Table(const MachineFunction *MF) { assert(BeginLabel == LandingPad->BeginLabels[P.RangeIndex] && "Inconsistent landing pad map!"); - if (SawPotentiallyThrowing) { + // FIXME: Should this be using FuncInfo.HandlerBaseState? + if (SawPotentiallyThrowing && LastEHState != -1) { FuncInfo.IPToStateList.push_back(std::make_pair(LastLabel, -1)); SawPotentiallyThrowing = false; LastEHState = -1; diff --git a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp index fc5ca3ec586..3248ac71aa2 100644 --- a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp +++ b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp @@ -82,16 +82,18 @@ static ISD::NodeType getPreferredExtendForValue(const Value *V) { namespace { struct WinEHNumbering { - WinEHNumbering(WinEHFuncInfo &FuncInfo) : FuncInfo(FuncInfo), NextState(0) {} + WinEHNumbering(WinEHFuncInfo &FuncInfo) : FuncInfo(FuncInfo), + CurrentBaseState(-1), NextState(0) {} WinEHFuncInfo &FuncInfo; + int CurrentBaseState; int NextState; SmallVector HandlerStack; SmallPtrSet VisitedHandlers; int currentEHNumber() const { - return HandlerStack.empty() ? -1 : HandlerStack.back()->getEHState(); + return HandlerStack.empty() ? CurrentBaseState : HandlerStack.back()->getEHState(); } void createUnwindMapEntry(int ToState, ActionHandler *AH); @@ -401,17 +403,33 @@ static void print_name(const Value *V) { void WinEHNumbering::processCallSite(ArrayRef Actions, ImmutableCallSite CS) { + DEBUG(dbgs() << "processCallSite (EH state = " << currentEHNumber() + << ") for: "); + print_name(CS ? CS.getCalledValue() : nullptr); + DEBUG(dbgs() << '\n'); + + DEBUG(dbgs() << "HandlerStack: \n"); + for (int I = 0, E = HandlerStack.size(); I < E; ++I) { + DEBUG(dbgs() << " "); + print_name(HandlerStack[I]->getHandlerBlockOrFunc()); + DEBUG(dbgs() << '\n'); + } + DEBUG(dbgs() << "Actions: \n"); + for (int I = 0, E = Actions.size(); I < E; ++I) { + DEBUG(dbgs() << " "); + print_name(Actions[I]->getHandlerBlockOrFunc()); + DEBUG(dbgs() << '\n'); + } int FirstMismatch = 0; for (int E = std::min(HandlerStack.size(), Actions.size()); FirstMismatch < E; ++FirstMismatch) { if (HandlerStack[FirstMismatch]->getHandlerBlockOrFunc() != Actions[FirstMismatch]->getHandlerBlockOrFunc()) break; + // Delete any actions that are already represented on the handler stack. delete Actions[FirstMismatch]; } - bool EnteringScope = (int)Actions.size() > FirstMismatch; - // Don't recurse while we are looping over the handler stack. Instead, defer // the numbering of the catch handlers until we are done popping. SmallVector PoppedCatches; @@ -425,46 +443,75 @@ void WinEHNumbering::processCallSite(ArrayRef Actions, HandlerStack.pop_back(); } - // We need to create a new state number if we are exiting a try scope and we - // will not push any more actions. int TryHigh = NextState - 1; - if (!EnteringScope && !PoppedCatches.empty()) { - createUnwindMapEntry(currentEHNumber(), nullptr); - ++NextState; - } - int LastTryLowIdx = 0; for (int I = 0, E = PoppedCatches.size(); I != E; ++I) { CatchHandler *CH = PoppedCatches[I]; + DEBUG(dbgs() << "Popped handler with state " << CH->getEHState() << "\n"); if (I + 1 == E || CH->getEHState() != PoppedCatches[I + 1]->getEHState()) { int TryLow = CH->getEHState(); auto Handlers = makeArrayRef(&PoppedCatches[LastTryLowIdx], I - LastTryLowIdx + 1); + DEBUG(dbgs() << "createTryBlockMapEntry(" << TryLow << ", " << TryHigh); + for (int J = 0; J < Handlers.size(); ++J) { + DEBUG(dbgs() << ", "); + print_name(Handlers[J]->getHandlerBlockOrFunc()); + } + DEBUG(dbgs() << ")\n"); createTryBlockMapEntry(TryLow, TryHigh, Handlers); LastTryLowIdx = I + 1; } } for (CatchHandler *CH : PoppedCatches) { - if (auto *F = dyn_cast(CH->getHandlerBlockOrFunc())) + if (auto *F = dyn_cast(CH->getHandlerBlockOrFunc())) { + DEBUG(dbgs() << "Assigning base state " << NextState << " to "); + print_name(F); + DEBUG(dbgs() << '\n'); + FuncInfo.HandlerBaseState[F] = NextState; + DEBUG(dbgs() << "createUnwindMapEntry(" << currentEHNumber() + << ", null)\n"); + createUnwindMapEntry(currentEHNumber(), nullptr); + ++NextState; calculateStateNumbers(*F); + } delete CH; } + // The handler functions may have pushed actions onto the handler stack + // that we expected to push here. Compare the handler stack to our + // actions again to check for that possibility. + if (HandlerStack.size() > FirstMismatch) { + for (int E = std::min(HandlerStack.size(), Actions.size()); + FirstMismatch < E; ++FirstMismatch) { + if (HandlerStack[FirstMismatch]->getHandlerBlockOrFunc() != + Actions[FirstMismatch]->getHandlerBlockOrFunc()) + break; + delete Actions[FirstMismatch]; + } + } + + DEBUG(dbgs() << "Pushing actions for CallSite: "); + print_name(CS ? CS.getCalledValue() : nullptr); + DEBUG(dbgs() << '\n'); + bool LastActionWasCatch = false; for (size_t I = FirstMismatch; I != Actions.size(); ++I) { // We can reuse eh states when pushing two catches for the same invoke. bool CurrActionIsCatch = isa(Actions[I]); // FIXME: Reenable this optimization! if (CurrActionIsCatch && LastActionWasCatch && false) { + DEBUG(dbgs() << "setEHState for handler to " << currentEHNumber() + << "\n"); Actions[I]->setEHState(currentEHNumber()); } else { + DEBUG(dbgs() << "createUnwindMapEntry(" << currentEHNumber() << ", "); + print_name(Actions[I]->getHandlerBlockOrFunc()); + DEBUG(dbgs() << ")\n"); createUnwindMapEntry(currentEHNumber(), Actions[I]); + DEBUG(dbgs() << "setEHState for handler to " << NextState << "\n"); Actions[I]->setEHState(NextState); NextState++; - DEBUG(dbgs() << "Creating unwind map entry for: ("); - print_name(Actions[I]->getHandlerBlockOrFunc()); - DEBUG(dbgs() << ", " << currentEHNumber() << ")\n"); } HandlerStack.push_back(Actions[I]); LastActionWasCatch = CurrActionIsCatch; @@ -480,6 +527,11 @@ void WinEHNumbering::calculateStateNumbers(const Function &F) { if (!I.second) return; // We've already visited this handler, don't renumber it. + int OldBaseState = CurrentBaseState; + if (FuncInfo.HandlerBaseState.count(&F)) { + CurrentBaseState = FuncInfo.HandlerBaseState[&F]; + } + DEBUG(dbgs() << "Calculating state numbers for: " << F.getName() << '\n'); SmallVector ActionList; for (const BasicBlock &BB : F) { @@ -498,12 +550,19 @@ void WinEHNumbering::calculateStateNumbers(const Function &F) { continue; assert(ActionsCall->getIntrinsicID() == Intrinsic::eh_actions); parseEHActions(ActionsCall, ActionList); + if (ActionList.empty()) + continue; processCallSite(ActionList, II); ActionList.clear(); FuncInfo.LandingPadStateMap[LPI] = currentEHNumber(); + DEBUG(dbgs() << "Assigning state " << currentEHNumber() + << " to landing pad at " << LPI->getParent()->getName() + << '\n'); } FuncInfo.CatchHandlerMaxState[&F] = NextState - 1; + + CurrentBaseState = OldBaseState; } /// clear - Clear out all the function-specific state. This returns this diff --git a/test/CodeGen/WinEH/cppeh-prepared-catch-reordered.ll b/test/CodeGen/WinEH/cppeh-prepared-catch-reordered.ll index 5c8170b0d4b..6383ca7f188 100644 --- a/test/CodeGen/WinEH/cppeh-prepared-catch-reordered.ll +++ b/test/CodeGen/WinEH/cppeh-prepared-catch-reordered.ll @@ -120,7 +120,7 @@ stub: ; preds = %entry ; CHECK-NEXT: .long ($stateUnwindMap$main)@IMGREL ; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long ($tryMap$main)@IMGREL -; CHECK-NEXT: .long 1 +; CHECK-NEXT: .long 3 ; CHECK-NEXT: .long ($ip2state$main)@IMGREL ; CHECK-NEXT: .long 40 ; CHECK-NEXT: .long 0 diff --git a/test/CodeGen/WinEH/cppeh-prepared-catch.ll b/test/CodeGen/WinEH/cppeh-prepared-catch.ll index 2fd4a77f65a..e7aaca86a88 100644 --- a/test/CodeGen/WinEH/cppeh-prepared-catch.ll +++ b/test/CodeGen/WinEH/cppeh-prepared-catch.ll @@ -127,7 +127,7 @@ try.cont8: ; preds = %lpad2, %try.cont ; CHECK-NEXT: .long ("$stateUnwindMap$?f@@YAXXZ")@IMGREL ; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long ("$tryMap$?f@@YAXXZ")@IMGREL -; CHECK-NEXT: .long 3 +; CHECK-NEXT: .long 6 ; CHECK-NEXT: .long ("$ip2state$?f@@YAXXZ")@IMGREL ; CHECK-NEXT: .long 32 ; CHECK-NEXT: .long 0 @@ -165,8 +165,14 @@ try.cont8: ; preds = %lpad2, %try.cont ; CHECK-NEXT: .long "?f@@YAXXZ.catch1"@IMGREL ; CHECK-NEXT: .long ".L?f@@YAXXZ.catch1$parent_frame_offset" ; CHECK-NEXT:"$ip2state$?f@@YAXXZ": +; CHECK-NEXT: .long .Lfunc_begin0@IMGREL +; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long .Ltmp0@IMGREL ; CHECK-NEXT: .long 0 +; CHECK-NEXT: .long .Lfunc_begin1@IMGREL +; CHECK-NEXT: .long 3 +; CHECK-NEXT: .long .Lfunc_begin2@IMGREL +; CHECK-NEXT: .long -1 ; CHECK-NEXT: .long .Ltmp13@IMGREL ; CHECK-NEXT: .long 1 ; CHECK-NEXT: .long .Ltmp16@IMGREL diff --git a/test/CodeGen/WinEH/cppeh-prepared-cleanups.ll b/test/CodeGen/WinEH/cppeh-prepared-cleanups.ll index b9585892135..876cb53baba 100644 --- a/test/CodeGen/WinEH/cppeh-prepared-cleanups.ll +++ b/test/CodeGen/WinEH/cppeh-prepared-cleanups.ll @@ -36,7 +36,7 @@ $_TI1H = comdat any ; CHECK-NEXT: .long ("$stateUnwindMap$?test1@@YAXXZ")@IMGREL ; CHECK-NEXT: .long 0 ; CHECK-NEXT: .long 0 -; CHECK-NEXT: .long 1 +; CHECK-NEXT: .long 2 ; CHECK-NEXT: .long ("$ip2state$?test1@@YAXXZ")@IMGREL ; CHECK-NEXT: .long 32 ; CHECK-NEXT: .long 0 @@ -45,6 +45,8 @@ $_TI1H = comdat any ; CHECK-NEXT: .long -1 ; CHECK-NEXT: .long "?test1@@YAXXZ.cleanup"@IMGREL ; CHECK-NEXT:"$ip2state$?test1@@YAXXZ": +; CHECK-NEXT: .long .Lfunc_begin0@IMGREL +; CHECK-NEXT: .long -1 ; CHECK-NEXT: .long .Ltmp0@IMGREL ; CHECK-NEXT: .long 0 diff --git a/test/CodeGen/WinEH/cppeh-state-calc-1.ll b/test/CodeGen/WinEH/cppeh-state-calc-1.ll new file mode 100644 index 00000000000..87df6182aa8 --- /dev/null +++ b/test/CodeGen/WinEH/cppeh-state-calc-1.ll @@ -0,0 +1,289 @@ +; RUN: llc < %s | FileCheck %s + +; This test was generated from the following code. +; +; void test() { +; try { +; try { +; try { +; two(); +; throw 2; +; } catch (int x) { +; catch_two(); +; } +; a(); +; throw 'a'; +; } catch (char c) { +; catch_a(); +; } +; one(); +; throw 1; +; } catch(int x) { +; catch_one(); +; } catch(...) { +; catch_all(); +; } +; } +; +; The function calls before the throws were declared as 'noexcept' and are +; just here to make blocks easier to identify in the IR. + +; ModuleID = '' +target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc" + +%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } +%eh.CatchHandlerType = type { i32, i8* } +%eh.CatchableType = type { i32, i32, i32, i32, i32, i32, i32 } +%eh.CatchableTypeArray.1 = type { i32, [1 x i32] } +%eh.ThrowInfo = type { i32, i32, i32, i32 } + +$"\01??_R0H@8" = comdat any + +$"\01??_R0D@8" = comdat any + +$"_CT??_R0H@84" = comdat any + +$_CTA1H = comdat any + +$_TI1H = comdat any + +$"_CT??_R0D@81" = comdat any + +$_CTA1D = comdat any + +$_TI1D = comdat any + +@"\01??_7type_info@@6B@" = external constant i8* +@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat +@llvm.eh.handlertype.H.0 = private unnamed_addr constant %eh.CatchHandlerType { i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) }, section "llvm.metadata" +@"\01??_R0D@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".D\00" }, comdat +@llvm.eh.handlertype.D.0 = private unnamed_addr constant %eh.CatchHandlerType { i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0D@8" to i8*) }, section "llvm.metadata" +@__ImageBase = external constant i8 +@"_CT??_R0H@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 -1, i32 0, i32 4, i32 0 }, section ".xdata", comdat +@_CTA1H = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableType* @"_CT??_R0H@84" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32)] }, section ".xdata", comdat +@_TI1H = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableTypeArray.1* @_CTA1H to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section ".xdata", comdat +@"_CT??_R0D@81" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor2* @"\01??_R0D@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 -1, i32 0, i32 1, i32 0 }, section ".xdata", comdat +@_CTA1D = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableType* @"_CT??_R0D@81" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32)] }, section ".xdata", comdat +@_TI1D = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableTypeArray.1* @_CTA1D to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section ".xdata", comdat + +; Function Attrs: nounwind uwtable +define void @"\01?test@@YAXXZ"() #0 { +entry: + %tmp = alloca i32, align 4 + %x = alloca i32, align 4 + %tmp2 = alloca i8, align 1 + %c = alloca i8, align 1 + %tmp11 = alloca i32, align 4 + %x21 = alloca i32, align 4 + call void @"\01?two@@YAXXZ"() #3 + store i32 2, i32* %tmp + %0 = bitcast i32* %tmp to i8* + call void (...) @llvm.frameescape(i32* %x, i8* %c, i32* %x21) + invoke void @_CxxThrowException(i8* %0, %eh.ThrowInfo* @_TI1H) #5 + to label %unreachable unwind label %lpad + +lpad: ; preds = %entry + %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*) + catch %eh.CatchHandlerType* @llvm.eh.handlertype.D.0 + catch %eh.CatchHandlerType* @llvm.eh.handlertype.H.0 + catch i8* null + %recover = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch", i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.D.0 to i8*), i32 1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1", i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2", i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch3") + indirectbr i8* %recover, [label %try.cont, label %try.cont10, label %try.cont22] + +try.cont: ; preds = %lpad + call void @"\01?a@@YAXXZ"() #3 + store i8 97, i8* %tmp2 + invoke void @_CxxThrowException(i8* %tmp2, %eh.ThrowInfo* @_TI1D) #5 + to label %unreachable unwind label %lpad3 + +lpad3: ; preds = %try.cont + %2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch %eh.CatchHandlerType* @llvm.eh.handlertype.D.0 + catch %eh.CatchHandlerType* @llvm.eh.handlertype.H.0 + catch i8* null + %recover1 = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.D.0 to i8*), i32 1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1", i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2", i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch3") + indirectbr i8* %recover1, [label %try.cont10, label %try.cont22] + +try.cont10: ; preds = %lpad3, %lpad + call void @"\01?one@@YAXXZ"() #3 + store i32 1, i32* %tmp11 + %3 = bitcast i32* %tmp11 to i8* + invoke void @_CxxThrowException(i8* %3, %eh.ThrowInfo* @_TI1H) #5 + to label %unreachable unwind label %lpad12 + +lpad12: ; preds = %try.cont10 + %4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + catch %eh.CatchHandlerType* @llvm.eh.handlertype.H.0 + catch i8* null + %recover2 = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.H.0 to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2", i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch3") + indirectbr i8* %recover2, [label %try.cont22] + +try.cont22: ; preds = %lpad12, %lpad3, %lpad + ret void + +unreachable: ; preds = %try.cont10, %try.cont, %entry + unreachable +} + +; Function Attrs: nounwind +declare void @"\01?two@@YAXXZ"() #1 + +declare void @_CxxThrowException(i8*, %eh.ThrowInfo*) + +declare i32 @__CxxFrameHandler3(...) + +; Function Attrs: nounwind readnone +declare i32 @llvm.eh.typeid.for(i8*) #2 + +; Function Attrs: nounwind +declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3 + +; Function Attrs: nounwind +declare void @"\01?catch_two@@YAXXZ"() #1 + +; Function Attrs: nounwind +declare void @llvm.eh.endcatch() #3 + +; Function Attrs: nounwind +declare void @"\01?a@@YAXXZ"() #1 + +; Function Attrs: nounwind +declare void @"\01?catch_a@@YAXXZ"() #1 + +; Function Attrs: nounwind +declare void @"\01?one@@YAXXZ"() #1 + +; Function Attrs: nounwind +declare void @"\01?catch_all@@YAXXZ"() #1 + +; Function Attrs: nounwind +declare void @"\01?catch_one@@YAXXZ"() #1 + +; Function Attrs: nounwind +declare i8* @llvm.eh.actions(...) #3 + +define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) #4 { +entry: + %x.i8 = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0) + %x = bitcast i8* %x.i8 to i32* + %2 = bitcast i32* %x to i8* + call void @"\01?catch_two@@YAXXZ"() #3 + invoke void @llvm.donothing() + to label %entry.split unwind label %stub + +entry.split: ; preds = %entry + ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont) + +stub: ; preds = %entry + %3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + %recover = call i8* (...) @llvm.eh.actions() + unreachable +} + +; Function Attrs: nounwind readnone +declare void @llvm.donothing() #2 + +define internal i8* @"\01?test@@YAXXZ.catch1"(i8*, i8*) #4 { +entry: + call void @"\01?catch_a@@YAXXZ"() #3 + invoke void @llvm.donothing() + to label %entry.split unwind label %stub + +entry.split: ; preds = %entry + ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont10) + +stub: ; preds = %entry + %2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + %recover = call i8* (...) @llvm.eh.actions() + unreachable +} + +define internal i8* @"\01?test@@YAXXZ.catch2"(i8*, i8*) #4 { +entry: + %x21.i8 = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2) + %x21 = bitcast i8* %x21.i8 to i32* + %2 = bitcast i32* %x21 to i8* + call void @"\01?catch_one@@YAXXZ"() #3 + invoke void @llvm.donothing() + to label %entry.split unwind label %stub + +entry.split: ; preds = %entry + ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont22) + +stub: ; preds = %entry + %3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + %recover = call i8* (...) @llvm.eh.actions() + unreachable +} + +define internal i8* @"\01?test@@YAXXZ.catch3"(i8*, i8*) #4 { +entry: + call void @"\01?catch_all@@YAXXZ"() #3 + invoke void @llvm.donothing() + to label %entry.split unwind label %stub + +entry.split: ; preds = %entry + ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont22) + +stub: ; preds = %entry + %2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) + cleanup + %recover = call i8* (...) @llvm.eh.actions() + unreachable +} + +; Function Attrs: nounwind +declare void @llvm.frameescape(...) #3 + +; Function Attrs: nounwind readnone +declare i8* @llvm.framerecover(i8*, i8*, i32) #2 + +attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" "wineh-parent"="?test@@YAXXZ" } +attributes #1 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { nounwind readnone } +attributes #3 = { nounwind } +attributes #4 = { "wineh-parent"="?test@@YAXXZ" } +attributes #5 = { noreturn } + +!llvm.module.flags = !{!0} +!llvm.ident = !{!1} + +!0 = !{i32 1, !"PIC Level", i32 2} +!1 = !{!"clang version 3.7.0 (trunk 236059)"} + +; CHECK-LABEL: "$cppxdata$?test@@YAXXZ": +; CHECK-NEXT: .long 429065506 +; CHECK-NEXT: .long +; CHECK-NEXT: .long ("$stateUnwindMap$?test@@YAXXZ")@IMGREL +; CHECK-NEXT: .long +; CHECK-NEXT: .long ("$tryMap$?test@@YAXXZ")@IMGREL +; CHECK-NEXT: .long +; CHECK-NEXT: .long ("$ip2state$?test@@YAXXZ")@IMGREL +; CHECK-NEXT: .long 40 +; CHECK-NEXT: .long 0 +; CHECK-NEXT: .long 1 +; CHECK: "$stateUnwindMap$?test@@YAXXZ": +; CHECK: "$tryMap$?test@@YAXXZ": +; CHECK: "$handlerMap$0$?test@@YAXXZ": +; CHECK: "$ip2state$?test@@YAXXZ": +; CHECK-NEXT: .long .Lfunc_begin0@IMGREL +; CHECK-NEXT: .long -1 +; CHECK-NEXT: .long .Ltmp0@IMGREL +; CHECK-NEXT: .long 3 +; CHECK-NEXT: .long .Ltmp3@IMGREL +; CHECK-NEXT: .long 2 +; CHECK-NEXT: .long .Ltmp6@IMGREL +; CHECK-NEXT: .long 1 +; CHECK-NEXT: .long .Lfunc_begin1@IMGREL +; CHECK-NEXT: .long 4 +; CHECK-NEXT: .long .Lfunc_begin2@IMGREL +; CHECK-NEXT: .long 5 +; CHECK-NEXT: .long .Lfunc_begin3@IMGREL +; CHECK-NEXT: .long 6 +; CHECK-NEXT: .long .Lfunc_begin4@IMGREL +; CHECK-NEXT: .long 7