#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/ilist.h"
#include "llvm/ADT/Optional.h"
+#include "llvm/Analysis/EHPersonalities.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/Metadata.h"
#include "llvm/MC/MCDwarf.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/ArrayRecycler.h"
#include "llvm/Support/Compiler.h"
BitVector(static_cast<unsigned>(Property::LastProperty)+1);
};
+struct SEHHandler {
+ /// Filter or finally function. Null indicates a catch-all.
+ const Function *FilterOrFinally;
+
+ /// Address of block to recover at. Null for a finally handler.
+ const BlockAddress *RecoverBA;
+};
+
+
+/// This structure is used to retain landing pad info for the current function.
+struct LandingPadInfo {
+ MachineBasicBlock *LandingPadBlock; // Landing pad block.
+ SmallVector<MCSymbol *, 1> BeginLabels; // Labels prior to invoke.
+ SmallVector<MCSymbol *, 1> EndLabels; // Labels after invoke.
+ SmallVector<SEHHandler, 1> SEHHandlers; // SEH handlers active at this lpad.
+ MCSymbol *LandingPadLabel; // Label at beginning of landing pad.
+ std::vector<int> TypeIds; // List of type ids (filters negative).
+
+ explicit LandingPadInfo(MachineBasicBlock *MBB)
+ : LandingPadBlock(MBB), LandingPadLabel(nullptr) {}
+};
+
class MachineFunction {
const Function *Fn;
const TargetMachine &Target;
/// by debug and exception handling consumers.
std::vector<MCCFIInstruction> FrameInstructions;
+ /// \name Exception Handling
+ /// \{
+
+ /// List of LandingPadInfo describing the landing pad information.
+ std::vector<LandingPadInfo> LandingPads;
+
+ /// Map a landing pad's EH symbol to the call site indexes.
+ DenseMap<MCSymbol*, SmallVector<unsigned, 4> > LPadToCallSiteMap;
+
+ /// Map of invoke call site index values to associated begin EH_LABEL.
+ DenseMap<MCSymbol*, unsigned> CallSiteMap;
+
+ bool CallsEHReturn = false;
+ bool CallsUnwindInit = false;
+ bool HasEHFunclets = false;
+
+ /// List of C++ TypeInfo used.
+ std::vector<const GlobalValue *> TypeInfos;
+
+ /// List of typeids encoding filters used.
+ std::vector<unsigned> FilterIds;
+
+ /// List of the indices in FilterIds corresponding to filter terminators.
+ std::vector<unsigned> FilterEnds;
+
+ EHPersonality PersonalityTypeCache = EHPersonality::Unknown;
+
+ /// \}
+
MachineFunction(const MachineFunction &) = delete;
void operator=(const MachineFunction&) = delete;
return FrameInstructions.size() - 1;
}
+ /// \name Exception Handling
+ /// \{
+
+ bool callsEHReturn() const { return CallsEHReturn; }
+ void setCallsEHReturn(bool b) { CallsEHReturn = b; }
+
+ bool callsUnwindInit() const { return CallsUnwindInit; }
+ void setCallsUnwindInit(bool b) { CallsUnwindInit = b; }
+
+ bool hasEHFunclets() const { return HasEHFunclets; }
+ void setHasEHFunclets(bool V) { HasEHFunclets = V; }
+
+ /// Find or create an LandingPadInfo for the specified MachineBasicBlock.
+ LandingPadInfo &getOrCreateLandingPadInfo(MachineBasicBlock *LandingPad);
+
+ /// Remap landing pad labels and remove any deleted landing pads.
+ void tidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap = nullptr);
+
+ /// Return a reference to the landing pad info for the current function.
+ const std::vector<LandingPadInfo> &getLandingPads() const {
+ return LandingPads;
+ }
+
+ /// Provide the begin and end labels of an invoke style call and associate it
+ /// with a try landing pad block.
+ void addInvoke(MachineBasicBlock *LandingPad,
+ MCSymbol *BeginLabel, MCSymbol *EndLabel);
+
+ /// Add a new panding pad. Returns the label ID for the landing pad entry.
+ MCSymbol *addLandingPad(MachineBasicBlock *LandingPad);
+
+ /// Provide the catch typeinfo for a landing pad.
+ void addCatchTypeInfo(MachineBasicBlock *LandingPad,
+ ArrayRef<const GlobalValue *> TyInfo);
+
+ /// Provide the filter typeinfo for a landing pad.
+ void addFilterTypeInfo(MachineBasicBlock *LandingPad,
+ ArrayRef<const GlobalValue *> TyInfo);
+
+ /// Add a cleanup action for a landing pad.
+ void addCleanup(MachineBasicBlock *LandingPad);
+
+ void addSEHCatchHandler(MachineBasicBlock *LandingPad, const Function *Filter,
+ const BlockAddress *RecoverLabel);
+
+ void addSEHCleanupHandler(MachineBasicBlock *LandingPad,
+ const Function *Cleanup);
+
+ /// Return the type id for the specified typeinfo. This is function wide.
+ unsigned getTypeIDFor(const GlobalValue *TI);
+
+ /// Return the id of the filter encoded by TyIds. This is function wide.
+ int getFilterIDFor(std::vector<unsigned> &TyIds);
+
+ /// Map the landing pad's EH symbol to the call site indexes.
+ void setCallSiteLandingPad(MCSymbol *Sym, ArrayRef<unsigned> Sites);
+
+ /// Get the call site indexes for a landing pad EH symbol.
+ SmallVectorImpl<unsigned> &getCallSiteLandingPad(MCSymbol *Sym) {
+ assert(hasCallSiteLandingPad(Sym) &&
+ "missing call site number for landing pad!");
+ return LPadToCallSiteMap[Sym];
+ }
+
+ /// Return true if the landing pad Eh symbol has an associated call site.
+ bool hasCallSiteLandingPad(MCSymbol *Sym) {
+ return !LPadToCallSiteMap[Sym].empty();
+ }
+
+ /// Map the begin label for a call site.
+ void setCallSiteBeginLabel(MCSymbol *BeginLabel, unsigned Site) {
+ CallSiteMap[BeginLabel] = Site;
+ }
+
+ /// Get the call site number for a begin label.
+ unsigned getCallSiteBeginLabel(MCSymbol *BeginLabel) const {
+ assert(hasCallSiteBeginLabel(BeginLabel) &&
+ "Missing call site number for EH_LABEL!");
+ return CallSiteMap.lookup(BeginLabel);
+ }
+
+ /// Return true if the begin label has a call site number associated with it.
+ bool hasCallSiteBeginLabel(MCSymbol *BeginLabel) const {
+ return CallSiteMap.count(BeginLabel);
+ }
+
+ /// Return a reference to the C++ typeinfo for the current function.
+ const std::vector<const GlobalValue *> &getTypeInfos() const {
+ return TypeInfos;
+ }
+
+ /// Return a reference to the typeids encoding filters used in the current
+ /// function.
+ const std::vector<unsigned> &getFilterIds() const {
+ return FilterIds;
+ }
+
+ /// \}
+
/// Collect information used to emit debugging information of a variable.
void setVariableDbgInfo(const DILocalVariable *Var, const DIExpression *Expr,
unsigned Slot, const DILocation *Loc) {
}
};
+/// \name Exception Handling
+/// \{
+
+/// Extract the exception handling information from the landingpad instruction
+/// and add them to the specified machine module info.
+void addLandingPadInfo(const LandingPadInst &I, MachineBasicBlock &MBB);
+
+/// \}
+
//===--------------------------------------------------------------------===//
// GraphTraits specializations for function basic block graphs (CFGs)
//===--------------------------------------------------------------------===//
#include "llvm/ADT/PointerIntPair.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
-#include "llvm/Analysis/EHPersonalities.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/ValueHandle.h"
#include "llvm/MC/MCContext.h"
class PointerType;
class StructType;
-struct SEHHandler {
- // Filter or finally function. Null indicates a catch-all.
- const Function *FilterOrFinally;
-
- // Address of block to recover at. Null for a finally handler.
- const BlockAddress *RecoverBA;
-};
-
-//===----------------------------------------------------------------------===//
-/// This structure is used to retain landing pad info for the current function.
-///
-struct LandingPadInfo {
- MachineBasicBlock *LandingPadBlock; // Landing pad block.
- SmallVector<MCSymbol *, 1> BeginLabels; // Labels prior to invoke.
- SmallVector<MCSymbol *, 1> EndLabels; // Labels after invoke.
- SmallVector<SEHHandler, 1> SEHHandlers; // SEH handlers active at this lpad.
- MCSymbol *LandingPadLabel; // Label at beginning of landing pad.
- std::vector<int> TypeIds; // List of type ids (filters negative).
-
- explicit LandingPadInfo(MachineBasicBlock *MBB)
- : LandingPadBlock(MBB), LandingPadLabel(nullptr) {}
-};
-
//===----------------------------------------------------------------------===//
/// This class can be derived from and used by targets to hold private
/// target-specific information for each Module. Objects of type are
/// want.
MachineModuleInfoImpl *ObjFileMMI;
- /// List of LandingPadInfo describing the landing pad information in the
- /// current function.
- std::vector<LandingPadInfo> LandingPads;
-
- /// Map a landing pad's EH symbol to the call site indexes.
- DenseMap<MCSymbol*, SmallVector<unsigned, 4> > LPadToCallSiteMap;
+ /// \name Exception Handling
+ /// \{
- /// Map of invoke call site index values to associated begin EH_LABEL for the
- /// current function.
- DenseMap<MCSymbol*, unsigned> CallSiteMap;
+ /// Vector of all personality functions ever seen. Used to emit common EH
+ /// frames.
+ std::vector<const Function *> Personalities;
/// The current call site index being processed, if any. 0 if none.
unsigned CurCallSite;
- /// List of C++ TypeInfo used in the current function.
- std::vector<const GlobalValue *> TypeInfos;
-
- /// List of typeids encoding filters used in the current function.
- std::vector<unsigned> FilterIds;
-
- /// List of the indices in FilterIds corresponding to filter terminators.
- std::vector<unsigned> FilterEnds;
-
- /// Vector of all personality functions ever seen. Used to emit common EH
- /// frames.
- std::vector<const Function *> Personalities;
+ /// \}
/// This map keeps track of which symbol is being used for the specified
/// basic block's address of label.
MMIAddrLabelMap *AddrLabelSymbols;
- bool CallsEHReturn;
- bool CallsUnwindInit;
- bool HasEHFunclets;
-
// TODO: Ideally, what we'd like is to have a switch that allows emitting
// synchronous (precise at call-sites only) CFA into .eh_frame. However,
// even under this switch, we'd like .debug_frame to be precise when using.
/// comments in lib/Target/X86/X86FrameLowering.cpp for more details.
bool UsesMorestackAddr;
- EHPersonality PersonalityTypeCache;
-
MachineFunctionInitializer *MFInitializer;
/// Maps IR Functions to their corresponding MachineFunctions.
DenseMap<const Function*, std::unique_ptr<MachineFunction>> MachineFunctions;
bool doInitialization(Module &) override;
bool doFinalization(Module &) override;
- /// Discard function meta information.
- void EndFunction();
-
const MCContext &getContext() const { return Context; }
MCContext &getContext() { return Context; }
bool hasDebugInfo() const { return DbgInfoAvailable; }
void setDebugInfoAvailability(bool avail) { DbgInfoAvailable = avail; }
- bool callsEHReturn() const { return CallsEHReturn; }
- void setCallsEHReturn(bool b) { CallsEHReturn = b; }
-
- bool callsUnwindInit() const { return CallsUnwindInit; }
- void setCallsUnwindInit(bool b) { CallsUnwindInit = b; }
-
- bool hasEHFunclets() const { return HasEHFunclets; }
- void setHasEHFunclets(bool V) { HasEHFunclets = V; }
-
bool usesVAFloatArgument() const {
return UsesVAFloatArgument;
}
void takeDeletedSymbolsForFunction(const Function *F,
std::vector<MCSymbol*> &Result);
-
- //===- EH ---------------------------------------------------------------===//
-
- /// Find or create an LandingPadInfo for the specified MachineBasicBlock.
- LandingPadInfo &getOrCreateLandingPadInfo(MachineBasicBlock *LandingPad);
-
- /// Provide the begin and end labels of an invoke style call and associate it
- /// with a try landing pad block.
- void addInvoke(MachineBasicBlock *LandingPad,
- MCSymbol *BeginLabel, MCSymbol *EndLabel);
-
- /// Add a new panding pad. Returns the label ID for the landing pad entry.
- MCSymbol *addLandingPad(MachineBasicBlock *LandingPad);
-
- /// Provide the personality function for the exception information.
- void addPersonality(const Function *Personality);
-
- /// Return array of personality functions ever seen.
- const std::vector<const Function *>& getPersonalities() const {
- return Personalities;
- }
-
- /// Provide the catch typeinfo for a landing pad.
- void addCatchTypeInfo(MachineBasicBlock *LandingPad,
- ArrayRef<const GlobalValue *> TyInfo);
-
- /// Provide the filter typeinfo for a landing pad.
- void addFilterTypeInfo(MachineBasicBlock *LandingPad,
- ArrayRef<const GlobalValue *> TyInfo);
-
- /// Add a cleanup action for a landing pad.
- void addCleanup(MachineBasicBlock *LandingPad);
-
- void addSEHCatchHandler(MachineBasicBlock *LandingPad, const Function *Filter,
- const BlockAddress *RecoverLabel);
-
- void addSEHCleanupHandler(MachineBasicBlock *LandingPad,
- const Function *Cleanup);
-
- /// Return the type id for the specified typeinfo. This is function wide.
- unsigned getTypeIDFor(const GlobalValue *TI);
-
- /// Return the id of the filter encoded by TyIds. This is function wide.
- int getFilterIDFor(std::vector<unsigned> &TyIds);
-
- /// Remap landing pad labels and remove any deleted landing pads.
- void TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap = nullptr);
-
- /// Return a reference to the landing pad info for the current function.
- const std::vector<LandingPadInfo> &getLandingPads() const {
- return LandingPads;
- }
-
- /// Map the landing pad's EH symbol to the call site indexes.
- void setCallSiteLandingPad(MCSymbol *Sym, ArrayRef<unsigned> Sites);
-
- /// Get the call site indexes for a landing pad EH symbol.
- SmallVectorImpl<unsigned> &getCallSiteLandingPad(MCSymbol *Sym) {
- assert(hasCallSiteLandingPad(Sym) &&
- "missing call site number for landing pad!");
- return LPadToCallSiteMap[Sym];
- }
-
- /// Return true if the landing pad Eh symbol has an associated call site.
- bool hasCallSiteLandingPad(MCSymbol *Sym) {
- return !LPadToCallSiteMap[Sym].empty();
- }
-
- /// Map the begin label for a call site.
- void setCallSiteBeginLabel(MCSymbol *BeginLabel, unsigned Site) {
- CallSiteMap[BeginLabel] = Site;
- }
-
- /// Get the call site number for a begin label.
- unsigned getCallSiteBeginLabel(MCSymbol *BeginLabel) {
- assert(hasCallSiteBeginLabel(BeginLabel) &&
- "Missing call site number for EH_LABEL!");
- return CallSiteMap[BeginLabel];
- }
-
- /// Return true if the begin label has a call site number associated with it.
- bool hasCallSiteBeginLabel(MCSymbol *BeginLabel) {
- return CallSiteMap[BeginLabel] != 0;
- }
+ /// \name Exception Handling
+ /// \{
/// Set the call site currently being processed.
void setCurrentCallSite(unsigned Site) { CurCallSite = Site; }
/// none.
unsigned getCurrentCallSite() { return CurCallSite; }
- /// Return a reference to the C++ typeinfo for the current function.
- const std::vector<const GlobalValue *> &getTypeInfos() const {
- return TypeInfos;
- }
+ /// Provide the personality function for the exception information.
+ void addPersonality(const Function *Personality);
- /// Return a reference to the typeids encoding filters used in the current
- /// function.
- const std::vector<unsigned> &getFilterIds() const {
- return FilterIds;
+ /// Return array of personality functions ever seen.
+ const std::vector<const Function *>& getPersonalities() const {
+ return Personalities;
}
+ /// \}
}; // End class MachineModuleInfo
//===- MMI building helpers -----------------------------------------------===//
/// which will link in MSVCRT's floating-point support.
void computeUsesVAFloatArgument(const CallInst &I, MachineModuleInfo &MMI);
-/// Extract the exception handling information from the landingpad instruction
-/// and add them to the specified machine module info.
-void addLandingPadInfo(const LandingPadInst &I, MachineModuleInfo &MMI,
- MachineBasicBlock &MBB);
-
-
} // End llvm namespace
#endif
DenseMap<const MachineBasicBlock *, int> FuncletMembership;
// We don't have anything to do if there aren't any EH pads.
- if (!MF.getMMI().hasEHFunclets())
+ if (!MF.hasEHFunclets())
return FuncletMembership;
int EntryBBNumber = MF.front().getNumber();
F->hasPersonalityFn() && !isNoOpWithoutInvoke(classifyEHPersonality(Per)) &&
F->needsUnwindTableEntry();
bool shouldEmitPersonality = forceEmitPersonality ||
- !MMI->getLandingPads().empty();
+ !MF->getLandingPads().empty();
if (!Asm->MF->getFunction()->needsUnwindTableEntry() &&
!shouldEmitPersonality)
ATS.emitCantUnwind();
}
void ARMException::emitTypeInfos(unsigned TTypeEncoding) {
- const std::vector<const GlobalValue *> &TypeInfos = MMI->getTypeInfos();
- const std::vector<unsigned> &FilterIds = MMI->getFilterIds();
+ const MachineFunction *MF = Asm->MF;
+ const std::vector<const GlobalValue *> &TypeInfos = MF->getTypeInfos();
+ const std::vector<unsigned> &FilterIds = MF->getFilterIds();
bool VerboseAsm = Asm->OutStreamer->isVerboseAsm();
// Emit target-specific gunk after the function body.
EmitFunctionBodyEnd();
- if (!MMI->getLandingPads().empty() || MMI->hasDebugInfo() ||
- MMI->hasEHFunclets() || MAI->hasDotTypeDotSizeDirective()) {
+ if (!MF->getLandingPads().empty() || MMI->hasDebugInfo() ||
+ MF->hasEHFunclets() || MAI->hasDotTypeDotSizeDirective()) {
// Create a symbol for the end of function.
CurrentFnEnd = createTempSymbol("func_end");
OutStreamer->EmitLabel(CurrentFnEnd);
HI.TimerGroupDescription, TimePassesIsEnabled);
HI.Handler->endFunction(MF);
}
- MMI->EndFunction();
OutStreamer->AddBlankLine();
}
CurrentFnBegin = nullptr;
CurExceptionSym = nullptr;
bool NeedsLocalForSize = MAI->needsLocalForSize();
- if (!MMI->getLandingPads().empty() || MMI->hasDebugInfo() ||
- MMI->hasEHFunclets() || NeedsLocalForSize) {
+ if (!MF.getLandingPads().empty() || MMI->hasDebugInfo() ||
+ MF.hasEHFunclets() || NeedsLocalForSize) {
CurrentFnBegin = createTempSymbol("func_begin");
if (NeedsLocalForSize)
CurrentFnSymForSize = CurrentFnBegin;
void DwarfCFIExceptionBase::markFunctionEnd() {
endFragment();
- if (MMI->getLandingPads().empty())
- return;
-
// Map all labels and get rid of any dead landing pads.
- MMI->TidyLandingPads();
+ if (!Asm->MF->getLandingPads().empty()) {
+ MachineFunction *NonConstMF = const_cast<MachineFunction*>(Asm->MF);
+ NonConstMF->tidyLandingPads();
+ }
}
void DwarfCFIExceptionBase::endFragment() {
const Function *F = MF->getFunction();
// If any landing pads survive, we need an EH table.
- bool hasLandingPads = !MMI->getLandingPads().empty();
+ bool hasLandingPads = !MF->getLandingPads().empty();
// See if we need frame move info.
AsmPrinter::CFIMoveType MoveType = Asm->needsCFIMoves();
/// endFunction - Gather and emit post-function exception information.
///
-void DwarfCFIException::endFunction(const MachineFunction *) {
+void DwarfCFIException::endFunction(const MachineFunction *MF) {
if (!shouldEmitPersonality)
return;
// output using a fixed width encoding. FilterOffsets[i] holds the byte
// offset corresponding to FilterIds[i].
- const std::vector<unsigned> &FilterIds = MMI->getFilterIds();
+ const std::vector<unsigned> &FilterIds = Asm->MF->getFilterIds();
SmallVector<int, 16> FilterOffsets;
FilterOffsets.reserve(FilterIds.size());
int Offset = -1;
else {
// SjLj EH must maintain the call sites in the order assigned
// to them by the SjLjPrepare pass.
- unsigned SiteNo = MMI->getCallSiteBeginLabel(BeginLabel);
+ unsigned SiteNo = Asm->MF->getCallSiteBeginLabel(BeginLabel);
if (CallSites.size() < SiteNo)
CallSites.resize(SiteNo);
CallSites[SiteNo - 1] = Site;
/// 3. Type ID table contains references to all the C++ typeinfo for all
/// catches in the function. This tables is reverse indexed base 1.
void EHStreamer::emitExceptionTable() {
- const std::vector<const GlobalValue *> &TypeInfos = MMI->getTypeInfos();
- const std::vector<unsigned> &FilterIds = MMI->getFilterIds();
- const std::vector<LandingPadInfo> &PadInfos = MMI->getLandingPads();
+ const MachineFunction *MF = Asm->MF;
+ const std::vector<const GlobalValue *> &TypeInfos = MF->getTypeInfos();
+ const std::vector<unsigned> &FilterIds = MF->getFilterIds();
+ const std::vector<LandingPadInfo> &PadInfos = MF->getLandingPads();
// Sort the landing pads in order of their type ids. This is used to fold
// duplicate actions.
}
void EHStreamer::emitTypeInfos(unsigned TTypeEncoding) {
- const std::vector<const GlobalValue *> &TypeInfos = MMI->getTypeInfos();
- const std::vector<unsigned> &FilterIds = MMI->getFilterIds();
+ const MachineFunction *MF = Asm->MF;
+ const std::vector<const GlobalValue *> &TypeInfos = MF->getTypeInfos();
+ const std::vector<unsigned> &FilterIds = MF->getFilterIds();
bool VerboseAsm = Asm->OutStreamer->isVerboseAsm();
shouldEmitMoves = shouldEmitPersonality = shouldEmitLSDA = false;
// If any landing pads survive, we need an EH table.
- bool hasLandingPads = !MMI->getLandingPads().empty();
- bool hasEHFunclets = MMI->hasEHFunclets();
+ bool hasLandingPads = !MF->getLandingPads().empty();
+ bool hasEHFunclets = MF->hasEHFunclets();
const Function *F = MF->getFunction();
// Get rid of any dead landing pads if we're not using funclets. In funclet
// schemes, the landing pad is not actually reachable. It only exists so
// that we can emit the right table data.
- if (!isFuncletEHPersonality(Per))
- MMI->TidyLandingPads();
+ if (!isFuncletEHPersonality(Per)) {
+ MachineFunction *NonConstMF = const_cast<MachineFunction*>(MF);
+ NonConstMF->tidyLandingPads();
+ }
endFunclet();
// endFunclet will emit the necessary .xdata tables for x64 SEH.
- if (Per == EHPersonality::MSVC_Win64SEH && MMI->hasEHFunclets())
+ if (Per == EHPersonality::MSVC_Win64SEH && MF->hasEHFunclets())
return;
if (shouldEmitPersonality || shouldEmitLSDA) {
if (!CurrentFuncletEntry)
return;
+ const MachineFunction *MF = Asm->MF;
if (shouldEmitMoves || shouldEmitPersonality) {
- const Function *F = Asm->MF->getFunction();
+ const Function *F = MF->getFunction();
EHPersonality Per = EHPersonality::Unknown;
if (F->hasPersonalityFn())
Per = classifyEHPersonality(F->getPersonalityFn()->stripPointerCasts());
MCSymbol *FuncInfoXData = Asm->OutContext.getOrCreateSymbol(
Twine("$cppxdata$", FuncLinkageName));
Asm->OutStreamer->EmitValue(create32bitRef(FuncInfoXData), 4);
- } else if (Per == EHPersonality::MSVC_Win64SEH && MMI->hasEHFunclets() &&
+ } else if (Per == EHPersonality::MSVC_Win64SEH && MF->hasEHFunclets() &&
!CurrentFuncletEntry->isEHFuncletEntry()) {
// If this is the parent function in Win64 SEH, emit the LSDA immediately
// following .seh_handlerdata.
- emitCSpecificHandlerTable(Asm->MF);
+ emitCSpecificHandlerTable(MF);
}
// Switch back to the previous section now that we are done writing to
Twine(getFunctionNumber()) + "$pb");
}
+/// \name Exception Handling
+/// \{
+
+LandingPadInfo &
+MachineFunction::getOrCreateLandingPadInfo(MachineBasicBlock *LandingPad) {
+ unsigned N = LandingPads.size();
+ for (unsigned i = 0; i < N; ++i) {
+ LandingPadInfo &LP = LandingPads[i];
+ if (LP.LandingPadBlock == LandingPad)
+ return LP;
+ }
+
+ LandingPads.push_back(LandingPadInfo(LandingPad));
+ return LandingPads[N];
+}
+
+void MachineFunction::addInvoke(MachineBasicBlock *LandingPad,
+ MCSymbol *BeginLabel, MCSymbol *EndLabel) {
+ LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
+ LP.BeginLabels.push_back(BeginLabel);
+ LP.EndLabels.push_back(EndLabel);
+}
+
+MCSymbol *MachineFunction::addLandingPad(MachineBasicBlock *LandingPad) {
+ MCSymbol *LandingPadLabel = Ctx.createTempSymbol();
+ LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
+ LP.LandingPadLabel = LandingPadLabel;
+ return LandingPadLabel;
+}
+
+void MachineFunction::addCatchTypeInfo(MachineBasicBlock *LandingPad,
+ ArrayRef<const GlobalValue *> TyInfo) {
+ LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
+ for (unsigned N = TyInfo.size(); N; --N)
+ LP.TypeIds.push_back(getTypeIDFor(TyInfo[N - 1]));
+}
+
+void MachineFunction::addFilterTypeInfo(MachineBasicBlock *LandingPad,
+ ArrayRef<const GlobalValue *> TyInfo) {
+ LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
+ std::vector<unsigned> IdsInFilter(TyInfo.size());
+ for (unsigned I = 0, E = TyInfo.size(); I != E; ++I)
+ IdsInFilter[I] = getTypeIDFor(TyInfo[I]);
+ LP.TypeIds.push_back(getFilterIDFor(IdsInFilter));
+}
+
+void MachineFunction::tidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap) {
+ for (unsigned i = 0; i != LandingPads.size(); ) {
+ LandingPadInfo &LandingPad = LandingPads[i];
+ if (LandingPad.LandingPadLabel &&
+ !LandingPad.LandingPadLabel->isDefined() &&
+ (!LPMap || (*LPMap)[LandingPad.LandingPadLabel] == 0))
+ LandingPad.LandingPadLabel = nullptr;
+
+ // Special case: we *should* emit LPs with null LP MBB. This indicates
+ // "nounwind" case.
+ if (!LandingPad.LandingPadLabel && LandingPad.LandingPadBlock) {
+ LandingPads.erase(LandingPads.begin() + i);
+ continue;
+ }
+
+ for (unsigned j = 0, e = LandingPads[i].BeginLabels.size(); j != e; ++j) {
+ MCSymbol *BeginLabel = LandingPad.BeginLabels[j];
+ MCSymbol *EndLabel = LandingPad.EndLabels[j];
+ if ((BeginLabel->isDefined() ||
+ (LPMap && (*LPMap)[BeginLabel] != 0)) &&
+ (EndLabel->isDefined() ||
+ (LPMap && (*LPMap)[EndLabel] != 0))) continue;
+
+ LandingPad.BeginLabels.erase(LandingPad.BeginLabels.begin() + j);
+ LandingPad.EndLabels.erase(LandingPad.EndLabels.begin() + j);
+ --j;
+ --e;
+ }
+
+ // Remove landing pads with no try-ranges.
+ if (LandingPads[i].BeginLabels.empty()) {
+ LandingPads.erase(LandingPads.begin() + i);
+ continue;
+ }
+
+ // If there is no landing pad, ensure that the list of typeids is empty.
+ // If the only typeid is a cleanup, this is the same as having no typeids.
+ if (!LandingPad.LandingPadBlock ||
+ (LandingPad.TypeIds.size() == 1 && !LandingPad.TypeIds[0]))
+ LandingPad.TypeIds.clear();
+ ++i;
+ }
+}
+
+void MachineFunction::addCleanup(MachineBasicBlock *LandingPad) {
+ LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
+ LP.TypeIds.push_back(0);
+}
+
+void MachineFunction::addSEHCatchHandler(MachineBasicBlock *LandingPad,
+ const Function *Filter,
+ const BlockAddress *RecoverBA) {
+ LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
+ SEHHandler Handler;
+ Handler.FilterOrFinally = Filter;
+ Handler.RecoverBA = RecoverBA;
+ LP.SEHHandlers.push_back(Handler);
+}
+
+void MachineFunction::addSEHCleanupHandler(MachineBasicBlock *LandingPad,
+ const Function *Cleanup) {
+ LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
+ SEHHandler Handler;
+ Handler.FilterOrFinally = Cleanup;
+ Handler.RecoverBA = nullptr;
+ LP.SEHHandlers.push_back(Handler);
+}
+
+void MachineFunction::setCallSiteLandingPad(MCSymbol *Sym,
+ ArrayRef<unsigned> Sites) {
+ LPadToCallSiteMap[Sym].append(Sites.begin(), Sites.end());
+}
+
+unsigned MachineFunction::getTypeIDFor(const GlobalValue *TI) {
+ for (unsigned i = 0, N = TypeInfos.size(); i != N; ++i)
+ if (TypeInfos[i] == TI) return i + 1;
+
+ TypeInfos.push_back(TI);
+ return TypeInfos.size();
+}
+
+int MachineFunction::getFilterIDFor(std::vector<unsigned> &TyIds) {
+ // If the new filter coincides with the tail of an existing filter, then
+ // re-use the existing filter. Folding filters more than this requires
+ // re-ordering filters and/or their elements - probably not worth it.
+ for (std::vector<unsigned>::iterator I = FilterEnds.begin(),
+ E = FilterEnds.end(); I != E; ++I) {
+ unsigned i = *I, j = TyIds.size();
+
+ while (i && j)
+ if (FilterIds[--i] != TyIds[--j])
+ goto try_next;
+
+ if (!j)
+ // The new filter coincides with range [i, end) of the existing filter.
+ return -(1 + i);
+
+try_next:;
+ }
+
+ // Add the new filter.
+ int FilterID = -(1 + FilterIds.size());
+ FilterIds.reserve(FilterIds.size() + TyIds.size() + 1);
+ FilterIds.insert(FilterIds.end(), TyIds.begin(), TyIds.end());
+ FilterEnds.push_back(FilterIds.size());
+ FilterIds.push_back(0); // terminator
+ return FilterID;
+}
+
+void llvm::addLandingPadInfo(const LandingPadInst &I, MachineBasicBlock &MBB) {
+ MachineFunction &MF = *MBB.getParent();
+ if (const auto *PF = dyn_cast<Function>(
+ I.getParent()->getParent()->getPersonalityFn()->stripPointerCasts()))
+ MF.getMMI().addPersonality(PF);
+
+ if (I.isCleanup())
+ MF.addCleanup(&MBB);
+
+ // FIXME: New EH - Add the clauses in reverse order. This isn't 100% correct,
+ // but we need to do it this way because of how the DWARF EH emitter
+ // processes the clauses.
+ for (unsigned i = I.getNumClauses(); i != 0; --i) {
+ Value *Val = I.getClause(i - 1);
+ if (I.isCatch(i - 1)) {
+ MF.addCatchTypeInfo(&MBB,
+ dyn_cast<GlobalValue>(Val->stripPointerCasts()));
+ } else {
+ // Add filters in a list.
+ Constant *CVal = cast<Constant>(Val);
+ SmallVector<const GlobalValue *, 4> FilterList;
+ for (User::op_iterator II = CVal->op_begin(), IE = CVal->op_end();
+ II != IE; ++II)
+ FilterList.push_back(cast<GlobalValue>((*II)->stripPointerCasts()));
+
+ MF.addFilterTypeInfo(&MBB, FilterList);
+ }
+ }
+}
+
+/// \}
+
//===----------------------------------------------------------------------===//
// MachineFrameInfo implementation
//===----------------------------------------------------------------------===//
ObjFileMMI = nullptr;
CurCallSite = 0;
- CallsEHReturn = false;
- CallsUnwindInit = false;
- HasEHFunclets = false;
DbgInfoAvailable = UsesVAFloatArgument = UsesMorestackAddr = false;
- PersonalityTypeCache = EHPersonality::Unknown;
AddrLabelSymbols = nullptr;
TheModule = &M;
return false;
}
-void MachineModuleInfo::EndFunction() {
- // Clean up exception info.
- LandingPads.clear();
- PersonalityTypeCache = EHPersonality::Unknown;
- CallSiteMap.clear();
- TypeInfos.clear();
- FilterIds.clear();
- FilterEnds.clear();
- CallsEHReturn = false;
- CallsUnwindInit = false;
- HasEHFunclets = false;
-}
-
//===- Address of Block Management ----------------------------------------===//
ArrayRef<MCSymbol *>
takeDeletedSymbolsForFunction(const_cast<Function*>(F), Result);
}
-//===- EH -----------------------------------------------------------------===//
-
-LandingPadInfo &MachineModuleInfo::getOrCreateLandingPadInfo
- (MachineBasicBlock *LandingPad) {
- unsigned N = LandingPads.size();
- for (unsigned i = 0; i < N; ++i) {
- LandingPadInfo &LP = LandingPads[i];
- if (LP.LandingPadBlock == LandingPad)
- return LP;
- }
-
- LandingPads.push_back(LandingPadInfo(LandingPad));
- return LandingPads[N];
-}
-
-void MachineModuleInfo::addInvoke(MachineBasicBlock *LandingPad,
- MCSymbol *BeginLabel, MCSymbol *EndLabel) {
- LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
- LP.BeginLabels.push_back(BeginLabel);
- LP.EndLabels.push_back(EndLabel);
-}
-
-MCSymbol *MachineModuleInfo::addLandingPad(MachineBasicBlock *LandingPad) {
- MCSymbol *LandingPadLabel = Context.createTempSymbol();
- LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
- LP.LandingPadLabel = LandingPadLabel;
- return LandingPadLabel;
-}
+/// \name Exception Handling
+/// \{
void MachineModuleInfo::addPersonality(const Function *Personality) {
for (unsigned i = 0; i < Personalities.size(); ++i)
Personalities.push_back(Personality);
}
-void MachineModuleInfo::
-addCatchTypeInfo(MachineBasicBlock *LandingPad,
- ArrayRef<const GlobalValue *> TyInfo) {
- LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
- for (unsigned N = TyInfo.size(); N; --N)
- LP.TypeIds.push_back(getTypeIDFor(TyInfo[N - 1]));
-}
-
-void MachineModuleInfo::
-addFilterTypeInfo(MachineBasicBlock *LandingPad,
- ArrayRef<const GlobalValue *> TyInfo) {
- LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
- std::vector<unsigned> IdsInFilter(TyInfo.size());
- for (unsigned I = 0, E = TyInfo.size(); I != E; ++I)
- IdsInFilter[I] = getTypeIDFor(TyInfo[I]);
- LP.TypeIds.push_back(getFilterIDFor(IdsInFilter));
-}
-
-void MachineModuleInfo::addCleanup(MachineBasicBlock *LandingPad) {
- LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
- LP.TypeIds.push_back(0);
-}
-
-void MachineModuleInfo::addSEHCatchHandler(MachineBasicBlock *LandingPad,
- const Function *Filter,
- const BlockAddress *RecoverBA) {
- LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
- SEHHandler Handler;
- Handler.FilterOrFinally = Filter;
- Handler.RecoverBA = RecoverBA;
- LP.SEHHandlers.push_back(Handler);
-}
-
-void MachineModuleInfo::addSEHCleanupHandler(MachineBasicBlock *LandingPad,
- const Function *Cleanup) {
- LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
- SEHHandler Handler;
- Handler.FilterOrFinally = Cleanup;
- Handler.RecoverBA = nullptr;
- LP.SEHHandlers.push_back(Handler);
-}
-
-void MachineModuleInfo::TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap) {
- for (unsigned i = 0; i != LandingPads.size(); ) {
- LandingPadInfo &LandingPad = LandingPads[i];
- if (LandingPad.LandingPadLabel &&
- !LandingPad.LandingPadLabel->isDefined() &&
- (!LPMap || (*LPMap)[LandingPad.LandingPadLabel] == 0))
- LandingPad.LandingPadLabel = nullptr;
-
- // Special case: we *should* emit LPs with null LP MBB. This indicates
- // "nounwind" case.
- if (!LandingPad.LandingPadLabel && LandingPad.LandingPadBlock) {
- LandingPads.erase(LandingPads.begin() + i);
- continue;
- }
-
- for (unsigned j = 0, e = LandingPads[i].BeginLabels.size(); j != e; ++j) {
- MCSymbol *BeginLabel = LandingPad.BeginLabels[j];
- MCSymbol *EndLabel = LandingPad.EndLabels[j];
- if ((BeginLabel->isDefined() ||
- (LPMap && (*LPMap)[BeginLabel] != 0)) &&
- (EndLabel->isDefined() ||
- (LPMap && (*LPMap)[EndLabel] != 0))) continue;
-
- LandingPad.BeginLabels.erase(LandingPad.BeginLabels.begin() + j);
- LandingPad.EndLabels.erase(LandingPad.EndLabels.begin() + j);
- --j;
- --e;
- }
-
- // Remove landing pads with no try-ranges.
- if (LandingPads[i].BeginLabels.empty()) {
- LandingPads.erase(LandingPads.begin() + i);
- continue;
- }
-
- // If there is no landing pad, ensure that the list of typeids is empty.
- // If the only typeid is a cleanup, this is the same as having no typeids.
- if (!LandingPad.LandingPadBlock ||
- (LandingPad.TypeIds.size() == 1 && !LandingPad.TypeIds[0]))
- LandingPad.TypeIds.clear();
- ++i;
- }
-}
-
-void MachineModuleInfo::setCallSiteLandingPad(MCSymbol *Sym,
- ArrayRef<unsigned> Sites) {
- LPadToCallSiteMap[Sym].append(Sites.begin(), Sites.end());
-}
-
-unsigned MachineModuleInfo::getTypeIDFor(const GlobalValue *TI) {
- for (unsigned i = 0, N = TypeInfos.size(); i != N; ++i)
- if (TypeInfos[i] == TI) return i + 1;
-
- TypeInfos.push_back(TI);
- return TypeInfos.size();
-}
-
-int MachineModuleInfo::getFilterIDFor(std::vector<unsigned> &TyIds) {
- // If the new filter coincides with the tail of an existing filter, then
- // re-use the existing filter. Folding filters more than this requires
- // re-ordering filters and/or their elements - probably not worth it.
- for (std::vector<unsigned>::iterator I = FilterEnds.begin(),
- E = FilterEnds.end(); I != E; ++I) {
- unsigned i = *I, j = TyIds.size();
-
- while (i && j)
- if (FilterIds[--i] != TyIds[--j])
- goto try_next;
-
- if (!j)
- // The new filter coincides with range [i, end) of the existing filter.
- return -(1 + i);
-
-try_next:;
- }
-
- // Add the new filter.
- int FilterID = -(1 + FilterIds.size());
- FilterIds.reserve(FilterIds.size() + TyIds.size() + 1);
- FilterIds.insert(FilterIds.end(), TyIds.begin(), TyIds.end());
- FilterEnds.push_back(FilterIds.size());
- FilterIds.push_back(0); // terminator
- return FilterID;
-}
+/// \}
MachineFunction &MachineModuleInfo::getMachineFunction(const Function &F) {
// Shortcut for the common case where a sequence of MachineFunctionPasses
}
}
}
-
-void llvm::addLandingPadInfo(const LandingPadInst &I, MachineModuleInfo &MMI,
- MachineBasicBlock &MBB) {
- if (const auto *PF = dyn_cast<Function>(
- I.getParent()->getParent()->getPersonalityFn()->stripPointerCasts()))
- MMI.addPersonality(PF);
-
- if (I.isCleanup())
- MMI.addCleanup(&MBB);
-
- // FIXME: New EH - Add the clauses in reverse order. This isn't 100% correct,
- // but we need to do it this way because of how the DWARF EH emitter
- // processes the clauses.
- for (unsigned i = I.getNumClauses(); i != 0; --i) {
- Value *Val = I.getClause(i - 1);
- if (I.isCatch(i - 1)) {
- MMI.addCatchTypeInfo(&MBB,
- dyn_cast<GlobalValue>(Val->stripPointerCasts()));
- } else {
- // Add filters in a list.
- Constant *CVal = cast<Constant>(Val);
- SmallVector<const GlobalValue *, 4> FilterList;
- for (User::op_iterator II = CVal->op_begin(), IE = CVal->op_end();
- II != IE; ++II)
- FilterList.push_back(cast<GlobalValue>((*II)->stripPointerCasts()));
-
- MMI.addFilterTypeInfo(&MBB, FilterList);
- }
- }
-}
// FIXME: SEH catchpads do not create funclets, so we could avoid setting
// this in such cases in order to improve frame layout.
if (!isa<LandingPadInst>(I)) {
- MMI.setHasEHFunclets(true);
+ MF->setHasEHFunclets(true);
MF->getFrameInfo().setHasOpaqueSPAdjustment(true);
}
if (isa<CatchSwitchInst>(I)) {
"Call to landingpad not in landing pad!");
MachineBasicBlock *MBB = FuncInfo.MBB;
- MachineModuleInfo &MMI = DAG.getMachineFunction().getMMI();
- addLandingPadInfo(LP, MMI, *MBB);
+ addLandingPadInfo(LP, *MBB);
// If there aren't registers to copy the values into (e.g., during SjLj
// exceptions), then don't bother to create these DAG nodes.
case Intrinsic::eh_typeid_for: {
// Find the type id for the given typeinfo.
GlobalValue *GV = ExtractTypeInfo(I.getArgOperand(0));
- unsigned TypeID = DAG.getMachineFunction().getMMI().getTypeIDFor(GV);
+ unsigned TypeID = DAG.getMachineFunction().getTypeIDFor(GV);
Res = DAG.getConstant(TypeID, sdl, MVT::i32);
setValue(&I, Res);
return nullptr;
case Intrinsic::eh_return_i32:
case Intrinsic::eh_return_i64:
- DAG.getMachineFunction().getMMI().setCallsEHReturn(true);
+ DAG.getMachineFunction().setCallsEHReturn(true);
DAG.setRoot(DAG.getNode(ISD::EH_RETURN, sdl,
MVT::Other,
getControlRoot(),
getValue(I.getArgOperand(1))));
return nullptr;
case Intrinsic::eh_unwind_init:
- DAG.getMachineFunction().getMMI().setCallsUnwindInit(true);
+ DAG.getMachineFunction().setCallsUnwindInit(true);
return nullptr;
case Intrinsic::eh_dwarf_cfa: {
setValue(&I, DAG.getNode(ISD::EH_DWARF_CFA, sdl,
std::pair<SDValue, SDValue>
SelectionDAGBuilder::lowerInvokable(TargetLowering::CallLoweringInfo &CLI,
const BasicBlock *EHPadBB) {
- MachineModuleInfo &MMI = DAG.getMachineFunction().getMMI();
+ MachineFunction &MF = DAG.getMachineFunction();
+ MachineModuleInfo &MMI = MF.getMMI();
MCSymbol *BeginLabel = nullptr;
if (EHPadBB) {
// so as to maintain the ordering of pads in the LSDA.
unsigned CallSiteIndex = MMI.getCurrentCallSite();
if (CallSiteIndex) {
- MMI.setCallSiteBeginLabel(BeginLabel, CallSiteIndex);
+ MF.setCallSiteBeginLabel(BeginLabel, CallSiteIndex);
LPadToCallSiteMap[FuncInfo.MBBMap[EHPadBB]].push_back(CallSiteIndex);
// Now that the call site is handled, stop tracking it.
DAG.setRoot(DAG.getEHLabel(getCurSDLoc(), getRoot(), EndLabel));
// Inform MachineModuleInfo of range.
- if (MMI.hasEHFunclets()) {
+ if (MF.hasEHFunclets()) {
assert(CLI.CS);
WinEHFuncInfo *EHInfo = DAG.getMachineFunction().getWinEHFuncInfo();
EHInfo->addIPToStateRange(cast<InvokeInst>(CLI.CS->getInstruction()),
BeginLabel, EndLabel);
} else {
- MMI.addInvoke(FuncInfo.MBBMap[EHPadBB], BeginLabel, EndLabel);
+ MF.addInvoke(FuncInfo.MBBMap[EHPadBB], BeginLabel, EndLabel);
}
}
// Add a label to mark the beginning of the landing pad. Deletion of the
// landing pad can thus be detected via the MachineModuleInfo.
- MCSymbol *Label = MF->getMMI().addLandingPad(MBB);
+ MCSymbol *Label = MF->addLandingPad(MBB);
// Assign the call site to the landing pad's begin label.
- MF->getMMI().setCallSiteLandingPad(Label, SDB->LPadToCallSiteMap[MBB]);
+ MF->setCallSiteLandingPad(Label, SDB->LPadToCallSiteMap[MBB]);
const MCInstrDesc &II = TII->get(TargetOpcode::EH_LABEL);
BuildMI(*MBB, FuncInfo->InsertPt, SDB->getCurDebugLoc(), II)
return;
// Functions which call __builtin_unwind_init get all their registers saved.
- bool CallsUnwindInit = MF.getMMI().callsUnwindInit();
+ bool CallsUnwindInit = MF.callsUnwindInit();
const MachineRegisterInfo &MRI = MF.getRegInfo();
for (unsigned i = 0; CSRegs[i]; ++i) {
unsigned Reg = CSRegs[i];
// associated with.
DenseMap<unsigned, SmallVector<MachineBasicBlock*, 2> > CallSiteNumToLPad;
unsigned MaxCSNum = 0;
- MachineModuleInfo &MMI = MF->getMMI();
for (MachineFunction::iterator BB = MF->begin(), E = MF->end(); BB != E;
++BB) {
if (!BB->isEHPad()) continue;
if (!II->isEHLabel()) continue;
MCSymbol *Sym = II->getOperand(0).getMCSymbol();
- if (!MMI.hasCallSiteLandingPad(Sym)) continue;
+ if (!MF->hasCallSiteLandingPad(Sym)) continue;
- SmallVectorImpl<unsigned> &CallSiteIdxs = MMI.getCallSiteLandingPad(Sym);
+ SmallVectorImpl<unsigned> &CallSiteIdxs = MF->getCallSiteLandingPad(Sym);
for (SmallVectorImpl<unsigned>::iterator
CSI = CallSiteIdxs.begin(), CSE = CallSiteIdxs.end();
CSI != CSE; ++CSI) {
SavedRegs.set(SystemZ::ArgGPRs[I]);
// If there are any landing pads, entering them will modify r6/r7.
- if (!MF.getMMI().getLandingPads().empty()) {
+ if (!MF.getLandingPads().empty()) {
SavedRegs.set(SystemZ::R6D);
SavedRegs.set(SystemZ::R7D);
}
// in the compact unwind encoding that Darwin uses. So, bail if there
// is a danger of that being generated.
if (STI->isTargetDarwin() &&
- (!MF.getMMI().getLandingPads().empty() ||
+ (!MF.getLandingPads().empty() ||
(MF.getFunction()->needsUnwindTableEntry() && !TFL->hasFP(MF))))
return false;
/// or if frame pointer elimination is disabled.
bool X86FrameLowering::hasFP(const MachineFunction &MF) const {
const MachineFrameInfo &MFI = MF.getFrameInfo();
- const MachineModuleInfo &MMI = MF.getMMI();
-
return (MF.getTarget().Options.DisableFramePointerElim(MF) ||
TRI->needsStackRealignment(MF) ||
MFI.hasVarSizedObjects() ||
MFI.isFrameAddressTaken() || MFI.hasOpaqueSPAdjustment() ||
MF.getInfo<X86MachineFunctionInfo>()->getForceFramePointer() ||
- MMI.callsUnwindInit() || MMI.hasEHFunclets() || MMI.callsEHReturn() ||
+ MF.callsUnwindInit() || MF.hasEHFunclets() || MF.callsEHReturn() ||
MFI.hasStackMap() || MFI.hasPatchPoint() ||
MFI.hasCopyImplyingStackAdjustment());
}
bool Is64Bit) {
const MachineFunction *MF = MBB.getParent();
const Function *F = MF->getFunction();
- if (!F || MF->getMMI().callsEHReturn())
+ if (!F || MF->callsEHReturn())
return 0;
const TargetRegisterClass &AvailableRegs = *TRI->getGPRsForTailCall(*MF);
if (Fn->hasPersonalityFn())
Personality = classifyEHPersonality(Fn->getPersonalityFn());
bool FnHasClrFunclet =
- MMI.hasEHFunclets() && Personality == EHPersonality::CoreCLR;
+ MF.hasEHFunclets() && Personality == EHPersonality::CoreCLR;
bool IsClrFunclet = IsFunclet && FnHasClrFunclet;
bool HasFP = hasFP(MF);
bool IsWin64CC = STI.isCallingConvWin64(Fn->getCallingConv());
SavedRegs.set(TRI->getBaseRegister());
// Allocate a spill slot for EBP if we have a base pointer and EH funclets.
- if (MF.getMMI().hasEHFunclets()) {
+ if (MF.hasEHFunclets()) {
int FI = MFI.CreateSpillStackObject(SlotSize, SlotSize);
X86FI->setHasSEHFramePtrSave(true);
X86FI->setSEHFramePtrSaveIndex(FI);
// GNU_ARGS_SIZE.
// TODO: We don't need to reset this between subsequent functions,
// if it didn't change.
- bool HasDwarfEHHandlers = !WindowsCFI &&
- !MF.getMMI().getLandingPads().empty();
+ bool HasDwarfEHHandlers = !WindowsCFI && !MF.getLandingPads().empty();
if (HasDwarfEHHandlers && !isDestroy &&
MF.getInfo<X86MachineFunctionInfo>()->getHasPushSequences())
// If this function isn't doing Win64-style C++ EH, we don't need to do
// anything.
const Function *Fn = MF.getFunction();
- if (!STI.is64Bit() || !MF.getMMI().hasEHFunclets() ||
+ if (!STI.is64Bit() || !MF.hasEHFunclets() ||
classifyEHPersonality(Fn->getPersonalityFn()) != EHPersonality::MSVC_CXX)
return;
MachineBasicBlock *BB) const {
DebugLoc DL = MI.getDebugLoc();
MachineFunction *MF = BB->getParent();
- MachineModuleInfo *MMI = &MF->getMMI();
MachineFrameInfo &MFI = MF->getFrameInfo();
MachineRegisterInfo *MRI = &MF->getRegInfo();
const TargetInstrInfo *TII = Subtarget.getInstrInfo();
break;
}
- if (!MMI->hasCallSiteLandingPad(Sym))
+ if (!MF->hasCallSiteLandingPad(Sym))
continue;
- for (unsigned CSI : MMI->getCallSiteLandingPad(Sym)) {
+ for (unsigned CSI : MF->getCallSiteLandingPad(Sym)) {
CallSiteNumToLPad[CSI].push_back(&MBB);
MaxCSNum = std::max(MaxCSNum, CSI);
}
bool HasSSE = Subtarget.hasSSE1();
bool HasAVX = Subtarget.hasAVX();
bool HasAVX512 = Subtarget.hasAVX512();
- bool CallsEHReturn = MF->getMMI().callsEHReturn();
+ bool CallsEHReturn = MF->callsEHReturn();
switch (MF->getFunction()->getCallingConv()) {
case CallingConv::GHC:
// We force the LR to be saved so these instructions are used.
LRUsed = true;
- if (MF.getMMI().callsUnwindInit() || MF.getMMI().callsEHReturn()) {
+ if (MF.callsUnwindInit() || MF.callsEHReturn()) {
// The unwinder expects to find spill slots for the exception info regs R0
// & R1. These are used during llvm.eh.return() to 'restore' the exception
// info. N.B. we do not spill or restore R0, R1 during normal operation.
projects / llvm / commitdiff