Closes #27

Author: gmh5225

llvm/lib/Transforms/Scalar/GVN.cpp

@@ -2692,6 +2692,9 @@ bool GVNPass::runImpl(Function &F, AssumptionCache &RunAC, DominatorTree &RunDT,
                       const TargetLibraryInfo &RunTLI, AAResults &RunAA,
                       MemoryDependenceResults *RunMD, LoopInfo *LI,
                       OptimizationRemarkEmitter *RunORE, MemorySSA *MSSA) {
+  if (F.hasSEH() || F.hasCXXSEH())
+    return false;
+
   AC = &RunAC;
   DT = &RunDT;
   VN.setDomTree(DT);

llvm/lib/Transforms/Scalar/SROA.cpp

@@ -5070,6 +5070,9 @@ bool SROAPass::promoteAllocas(Function &F) {
 
 PreservedAnalyses SROAPass::runImpl(Function &F, DomTreeUpdater &RunDTU,
                                     AssumptionCache &RunAC) {
+  if (F.hasSEH() || F.hasCXXSEH())
+    return PreservedAnalyses::all();
+
   LLVM_DEBUG(dbgs() << "SROA function: " << F.getName() << "\n");
   C = &F.getContext();
   DTU = &RunDTU;

llvm/lib/Transforms/Utils/Mem2Reg.cpp

@@ -34,6 +34,9 @@ STATISTIC(NumPromoted, "Number of alloca's promoted");
 
 static bool promoteMemoryToRegister(Function &F, DominatorTree &DT,
                                     AssumptionCache &AC) {
+  if (F.hasSEH() || F.hasCXXSEH())
+    return false;
+
   std::vector<AllocaInst *> Allocas;
   BasicBlock &BB = F.getEntryBlock(); // Get the entry node for the function
   bool Changed = false;