Modify the mapping from landing pad to call sites to accept more than one call

site.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141226 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 6eb862a..ebf2097 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -5250,7 +5250,7 @@ void SelectionDAGBuilder::LowerCallTo(ImmutableCallSite CS, SDValue Callee,
     unsigned CallSiteIndex = MMI.getCurrentCallSite();
     if (CallSiteIndex) {
       MMI.setCallSiteBeginLabel(BeginLabel, CallSiteIndex);
-      LPadToCallSiteMap[LandingPad] = CallSiteIndex;
+      LPadToCallSiteMap[LandingPad].push_back(CallSiteIndex);
 
       // Now that the call site is handled, stop tracking it.
       MMI.setCurrentCallSite(0);

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index 521e4d3..461677f 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -320,8 +320,8 @@ public:
   /// GFI - Garbage collection metadata for the function.
   GCFunctionInfo *GFI;
 
-  /// LPadToBeginLabelMap - Map a landing pad to the begin label.
-  DenseMap<MachineBasicBlock*, unsigned> LPadToCallSiteMap;
+  /// LPadToCallSiteMap - Map a landing pad to the call site indexes.
+  DenseMap<MachineBasicBlock*, SmallVector<unsigned, 4> > LPadToCallSiteMap;
 
   /// HasTailCall - This is set to true if a call in the current
   /// block has been translated as a tail call. In this case,

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index b6fb978..68b9146 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -691,6 +691,9 @@ void SelectionDAGISel::PrepareEHLandingPad() {
   // landing pad can thus be detected via the MachineModuleInfo.
   MCSymbol *Label = MF->getMMI().addLandingPad(MBB);
 
+  // Assign the call site to the landing pad's begin label.
+  MF->getMMI().setCallSiteLandingPad(Label, SDB->LPadToCallSiteMap[MBB]);
+    
   const MCInstrDesc &II = TM.getInstrInfo()->get(TargetOpcode::EH_LABEL);
   BuildMI(*MBB, FuncInfo->InsertPt, SDB->getCurDebugLoc(), II)
     .addSym(Label);