Removal of GenericAddressAnalysis pass

GenericAddressAnalysis pass is not used anywhere, so it's getting
removed as it is redundant.

Author: smilczek

IGC/AdaptorOCL/UnifyIROCL.cpp

@@ -491,7 +491,6 @@ static void CommonOCLBasedPasses(
     mpm.add(new ExtensionFuncsAnalysis());
     mpm.add(new ExtensionArgAnalysis());
     mpm.add(new DeviceEnqueueFuncsAnalysis());
-    mpm.add(createGenericAddressAnalysisPass());
 
     mpm.add(new BuiltinCallGraphAnalysis());
 

IGC/Compiler/InitializePasses.h

@@ -54,7 +54,6 @@ void initializeExtensionFuncsResolutionPass(llvm::PassRegistry&);
 void initializeErrorCheckPass(llvm::PassRegistry&);
 void initializePoisonFP64KernelsPass(llvm::PassRegistry&);
 void initializeReduceOptPassPass(llvm::PassRegistry&);
-void initializeGenericAddressAnalysisPass(llvm::PassRegistry&);
 void initializeGenericAddressDynamicResolutionPass(llvm::PassRegistry&);
 void initializeGenFDIVEmulationPass(llvm::PassRegistry&);
 void initializeGenIRLoweringPass(llvm::PassRegistry&);

IGC/Compiler/Optimizer/OpenCLPasses/GenericAddressResolution/GenericAddressDynamicResolution.cpp

@@ -27,67 +27,6 @@ using namespace llvm;
 using namespace IGC;
 using IGCLLVM::getAlign;
 
-namespace {
-    class GenericAddressAnalysis : public FunctionPass {
-    public:
-        static char ID;
-
-        GenericAddressAnalysis()
-            : FunctionPass(ID)
-        {
-        }
-        ~GenericAddressAnalysis() = default;
-
-        virtual void getAnalysisUsage(AnalysisUsage& AU) const override
-        {
-            AU.setPreservesCFG();
-            AU.addRequired<MetaDataUtilsWrapper>();
-        }
-
-        virtual StringRef getPassName() const override
-        {
-            return "GenericAddressAnalysis";
-        }
-
-        virtual bool runOnFunction(Function& F) override;
-    };
-} // namespace
-
-// Register pass
-#define PASS_FLAG2 "igc-generic-address-analysis"
-#define PASS_DESCRIPTION2 "Finds when generic pointers are used"
-#define PASS_CFG_ONLY2 false
-#define PASS_ANALYSIS2 false
-IGC_INITIALIZE_PASS_BEGIN(GenericAddressAnalysis, PASS_FLAG2, PASS_DESCRIPTION2, PASS_CFG_ONLY2, PASS_ANALYSIS2)
-IGC_INITIALIZE_PASS_DEPENDENCY(MetaDataUtilsWrapper)
-IGC_INITIALIZE_PASS_DEPENDENCY(CastToGASWrapperPass)
-IGC_INITIALIZE_PASS_END(GenericAddressAnalysis, PASS_FLAG2, PASS_DESCRIPTION2, PASS_CFG_ONLY2, PASS_ANALYSIS2)
-
-char GenericAddressAnalysis::ID = 0;
-
-bool GenericAddressAnalysis::runOnFunction(Function& F)
-{
-    for (auto& BB : F.getBasicBlockList()) {
-        for (auto& Inst : BB.getInstList()) {
-            Type* Ty = Inst.getType();
-            if (auto AI = dyn_cast<AllocaInst>(&Inst))
-                Ty = AI->getAllocatedType();
-            else if (auto LI = dyn_cast<LoadInst>(&Inst))
-                Ty = LI->getPointerOperand()->getType();
-            else if (auto SI = dyn_cast<StoreInst>(&Inst))
-                Ty = SI->getPointerOperand()->getType();
-            else if (auto GEP = dyn_cast<GetElementPtrInst>(&Inst))
-                Ty = GEP->getPointerOperandType();
-            auto PT = dyn_cast<PointerType>(Ty);
-            if (PT && PT->getAddressSpace() == ADDRESS_SPACE_GENERIC) {
-                return true;
-            }
-        }
-    }
-
-    return false;
-}
-
 namespace {
     class GenericAddressDynamicResolution : public FunctionPass {
     public:
@@ -521,10 +460,6 @@ bool GenericAddressDynamicResolution::visitIntrinsicCall(CallInst& I)
 }
 
 namespace IGC {
-    FunctionPass* createGenericAddressAnalysisPass()
-    {
-        return new GenericAddressAnalysis;
-    }
     FunctionPass* createGenericAddressDynamicResolutionPass()
     {
         return new GenericAddressDynamicResolution;

IGC/Compiler/Optimizer/OpenCLPasses/GenericAddressResolution/GenericAddressDynamicResolution.hpp

@@ -13,9 +13,6 @@ SPDX-License-Identifier: MIT
 #include "common/LLVMWarningsPop.hpp"
 
 namespace IGC {
-    llvm::FunctionPass* createGenericAddressAnalysisPass();
-    void initializeGenericAddressAnalysisPass(llvm::PassRegistry&);
-
     llvm::FunctionPass* createGenericAddressDynamicResolutionPass();
     void initializeGenericAddressDynamicResolutionPass(llvm::PassRegistry&);
 } // End namespace IGC