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
diff --git a/include/llvm/CodeGen/MachineModuleInfo.h b/include/llvm/CodeGen/MachineModuleInfo.h
index 4daa663..a09a714 100644
--- a/include/llvm/CodeGen/MachineModuleInfo.h
+++ b/include/llvm/CodeGen/MachineModuleInfo.h
@@ -119,6 +119,10 @@
/// information in the current function.
std::vector<LandingPadInfo> LandingPads;
+ /// LPadToCallSiteMap - Map a landing pad's EH symbol to the call site
+ /// indexes.
+ DenseMap<MCSymbol*, SmallVector<unsigned, 4> > LPadToCallSiteMap;
+
/// CallSiteMap - Map of invoke call site index values to associated begin
/// EH_LABEL for the current function.
DenseMap<MCSymbol*, unsigned> CallSiteMap;
@@ -327,6 +331,16 @@
return LandingPads;
}
+ /// setCallSiteLandingPad - Map the landing pad's EH symbol to the call
+ /// site indexes.
+ void setCallSiteLandingPad(MCSymbol *Sym, ArrayRef<unsigned> Sites);
+
+ /// getCallSiteLandingPad - Get the call site indexes for a landing pad EH
+ /// symbol.
+ SmallVectorImpl<unsigned> &getCallSiteLandingPad(MCSymbol *Sym) {
+ return LPadToCallSiteMap[Sym];
+ }
+
/// setCallSiteBeginLabel - Map the begin label for a call site.
void setCallSiteBeginLabel(MCSymbol *BeginLabel, unsigned Site) {
CallSiteMap[BeginLabel] = Site;
diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index 58ced92..80c4854 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -499,6 +499,14 @@
}
}
+/// setCallSiteLandingPad - Map the landing pad's EH symbol to the call site
+/// indexes.
+void MachineModuleInfo::setCallSiteLandingPad(MCSymbol *Sym,
+ ArrayRef<unsigned> Sites) {
+ for (unsigned I = 0, E = Sites.size(); I != E; ++I)
+ LPadToCallSiteMap[Sym].push_back(Sites[I]);
+}
+
/// getTypeIDFor - Return the type id for the specified typeinfo. This is
/// function wide.
unsigned MachineModuleInfo::getTypeIDFor(const GlobalVariable *TI) {
