Remove map

Author: elsh

lib/SILOptimizer/IPO/CrossModuleOptimization.cpp

@@ -151,9 +151,6 @@ class InstructionVisitor : public SILCloner<InstructionVisitor> {
   CrossModuleOptimization &CMS;
   VisitMode mode;
   bool isInstSerializable = true;
-  // Tracks whether an instruction can be serialized by
-  // checking its contained types and fields.
-  llvm::DenseMap<SILInstruction *, bool> instToSerializeMap;
 
 public:
   InstructionVisitor(SILFunction &F, CrossModuleOptimization &CMS, VisitMode visitMode) :
@@ -236,13 +233,6 @@ class InstructionVisitor : public SILCloner<InstructionVisitor> {
 
   void postProcess(SILInstruction *Orig, SILInstruction *Cloned) {
     SILCloner<InstructionVisitor>::postProcess(Orig, Cloned);
-    switch (mode) {
-      case VisitMode::DetectSerializableInst:
-        instToSerializeMap[Orig] = isInstSerializable;
-        break;
-      case VisitMode::SerializeInst:
-        break;
-    }
     Cloned->eraseFromParent();
   }
 
@@ -251,10 +241,7 @@ class InstructionVisitor : public SILCloner<InstructionVisitor> {
   SILBasicBlock *remapBasicBlock(SILBasicBlock *BB) { return BB; }
 
   bool canSerializeTypesInInst(SILInstruction *inst) {
-    auto iter = instToSerializeMap.find(inst);
-    if (iter != instToSerializeMap.end())
-      return iter->getSecond();
-    return false;
+    return isInstSerializable;
   }
 };