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Add an ivar that maps a landing pad's EH symbol to the call sites that may jump
to the landing pad. This will be used by the back-end to generate the jump tables for dispatching the arriving longjmp in sjlj eh. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141224 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -119,6 +119,10 @@ class MachineModuleInfo : public ImmutablePass {
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/// information in the current function.
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std::vector<LandingPadInfo> LandingPads;
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/// LPadToCallSiteMap - Map a landing pad's EH symbol to the call site
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/// indexes.
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DenseMap<MCSymbol*, SmallVector<unsigned, 4> > LPadToCallSiteMap;
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/// CallSiteMap - Map of invoke call site index values to associated begin
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/// EH_LABEL for the current function.
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DenseMap<MCSymbol*, unsigned> CallSiteMap;
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@ -327,6 +331,16 @@ public:
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return LandingPads;
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}
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/// setCallSiteLandingPad - Map the landing pad's EH symbol to the call
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/// site indexes.
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void setCallSiteLandingPad(MCSymbol *Sym, ArrayRef<unsigned> Sites);
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/// getCallSiteLandingPad - Get the call site indexes for a landing pad EH
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/// symbol.
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SmallVectorImpl<unsigned> &getCallSiteLandingPad(MCSymbol *Sym) {
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return LPadToCallSiteMap[Sym];
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}
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/// setCallSiteBeginLabel - Map the begin label for a call site.
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void setCallSiteBeginLabel(MCSymbol *BeginLabel, unsigned Site) {
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CallSiteMap[BeginLabel] = Site;
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@ -499,6 +499,14 @@ void MachineModuleInfo::TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap) {
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}
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}
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/// setCallSiteLandingPad - Map the landing pad's EH symbol to the call site
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/// indexes.
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void MachineModuleInfo::setCallSiteLandingPad(MCSymbol *Sym,
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ArrayRef<unsigned> Sites) {
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for (unsigned I = 0, E = Sites.size(); I != E; ++I)
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LPadToCallSiteMap[Sym].push_back(Sites[I]);
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}
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/// getTypeIDFor - Return the type id for the specified typeinfo. This is
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/// function wide.
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unsigned MachineModuleInfo::getTypeIDFor(const GlobalVariable *TI) {
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