Typo.

[oota-llvm.git] / lib / CodeGen / MachineModuleInfo.cpp

diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index 88d8507425077226197e852d66d48827938ab87c..8360745ff167268a5c6619287b56f3ee2875e067 100644 (file)
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -1476,6 +1476,8 @@ MachineModuleInfo::MachineModuleInfo()
 , FrameMoves()
 , LandingPads()
 , Personalities()
+, CallsEHReturn(0)
+, CallsUnwindInit(0)
 {
   // Always emit "no personality" info
   Personalities.push_back(NULL);
@@ -1523,6 +1525,8 @@ void MachineModuleInfo::EndFunction() {
   TypeInfos.clear();
   FilterIds.clear();
   FilterEnds.clear();
+  CallsEHReturn = 0;
+  CallsUnwindInit = 0;
 }
 
 /// getDescFor - Convert a Value to a debug information descriptor.
@@ -1722,6 +1726,13 @@ void MachineModuleInfo::addFilterTypeInfo(MachineBasicBlock *LandingPad,
   LP.TypeIds.push_back(getFilterIDFor(IdsInFilter));
 }
 
+/// addCleanup - Add a cleanup action for a landing pad.
+///
+void MachineModuleInfo::addCleanup(MachineBasicBlock *LandingPad) {
+  LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
+  LP.TypeIds.push_back(0);
+}
+
 /// TidyLandingPads - Remap landing pad labels and remove any deleted landing
 /// pads.
 void MachineModuleInfo::TidyLandingPads() {
@@ -1729,22 +1740,18 @@ void MachineModuleInfo::TidyLandingPads() {
     LandingPadInfo &LandingPad = LandingPads[i];
     LandingPad.LandingPadLabel = MappedLabel(LandingPad.LandingPadLabel);
 
-    if (!LandingPad.LandingPadBlock)
-      // Must not have cleanups if no landing pad.
-      LandingPad.TypeIds.clear();
-
     // Special case: we *should* emit LPs with null LP MBB. This indicates
     // "rethrow" case.
     if (!LandingPad.LandingPadLabel && LandingPad.LandingPadBlock) {
       LandingPads.erase(LandingPads.begin() + i);
       continue;
     }
-          
+
     for (unsigned j=0; j != LandingPads[i].BeginLabels.size(); ) {
       unsigned BeginLabel = MappedLabel(LandingPad.BeginLabels[j]);
       unsigned EndLabel = MappedLabel(LandingPad.EndLabels[j]);
-            
-          
+
+
       if (!BeginLabel || !EndLabel) {
         LandingPad.BeginLabels.erase(LandingPad.BeginLabels.begin() + j);
         LandingPad.EndLabels.erase(LandingPad.EndLabels.begin() + j);
@@ -1755,7 +1762,19 @@ void MachineModuleInfo::TidyLandingPads() {
       LandingPad.EndLabels[j] = EndLabel;
       ++j;
     }
-    
+
+    // Remove landing pads with no try-ranges.
+    if (!LandingPads[i].BeginLabels.size()) {
+      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;
   }
 }