Declare that lowerinvoke doesn't interact with other lowering passes.

Patch written by Domagoj Babic!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28367 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Utils/LowerAllocations.cpp

@@ -46,6 +46,7 @@ namespace {
       AU.addPreservedID(PromoteMemoryToRegisterID);
       AU.addPreservedID(LowerSelectID);
       AU.addPreservedID(LowerSwitchID);
+      AU.addPreservedID(LowerInvokePassID);
     }
 
     /// doPassInitialization - For the lower allocations pass, this ensures that

lib/Transforms/Utils/LowerInvoke.cpp

@@ -72,6 +72,14 @@ namespace {
     bool doInitialization(Module &M);
     bool runOnFunction(Function &F);
  
+    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+      // This is a cluster of orthogonal Transforms	
+      AU.addPreservedID(PromoteMemoryToRegisterID);
+      AU.addPreservedID(LowerSelectID);
+      AU.addPreservedID(LowerSwitchID);
+      AU.addPreservedID(LowerAllocationsID);
+    }
+       
   private:
     void createAbortMessage();
     void writeAbortMessage(Instruction *IB);

lib/Transforms/Utils/LowerSelect.cpp

@@ -43,6 +43,8 @@ namespace {
       AU.addPreserved<UnifyFunctionExitNodes>();
       AU.addPreservedID(PromoteMemoryToRegisterID);
       AU.addPreservedID(LowerSwitchID);
+      AU.addPreservedID(LowerInvokePassID);
+      AU.addPreservedID(LowerAllocationsID);
     }
 
     bool runOnFunction(Function &F);

lib/Transforms/Utils/LowerSwitch.cpp

@@ -40,6 +40,8 @@ namespace {
       AU.addPreserved<UnifyFunctionExitNodes>();
       AU.addPreservedID(PromoteMemoryToRegisterID);
       AU.addPreservedID(LowerSelectID);
+      AU.addPreservedID(LowerInvokePassID);
+      AU.addPreservedID(LowerAllocationsID);
     }
         
     typedef std::pair<Constant*, BasicBlock*> Case;

lib/Transforms/Utils/Mem2Reg.cpp

@@ -42,6 +42,8 @@ namespace {
       AU.addPreserved<UnifyFunctionExitNodes>();
       AU.addPreservedID(LowerSelectID);
       AU.addPreservedID(LowerSwitchID);
+      AU.addPreservedID(LowerInvokePassID);
+      AU.addPreservedID(LowerAllocationsID);
     }
   };