adding opt flag to run spirv structurizer

Author: joaosaffran-zz

llvm/lib/Target/SPIRV/SPIRV.h

@@ -37,6 +37,7 @@ void initializeSPIRVModuleAnalysisPass(PassRegistry &);
 void initializeSPIRVConvergenceRegionAnalysisWrapperPassPass(PassRegistry &);
 void initializeSPIRVPreLegalizerPass(PassRegistry &);
 void initializeSPIRVPostLegalizerPass(PassRegistry &);
+void initializeSPIRVStructurizerPass(PassRegistry &);
 void initializeSPIRVEmitIntrinsicsPass(PassRegistry &);
 void initializeSPIRVEmitNonSemanticDIPass(PassRegistry &);
 } // namespace llvm

llvm/lib/Target/SPIRV/SPIRVStructurizer.cpp

@@ -1235,7 +1235,7 @@ INITIALIZE_PASS_DEPENDENCY(DominatorTreeWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(LoopInfoWrapperPass)
 INITIALIZE_PASS_DEPENDENCY(SPIRVConvergenceRegionAnalysisWrapperPass)
 
-INITIALIZE_PASS_END(SPIRVStructurizer, "structurize", "structurize SPIRV",
+INITIALIZE_PASS_END(SPIRVStructurizer, "structurizer", "structurize SPIRV",
                     false, false)
 
 FunctionPass *llvm::createSPIRVStructurizerPass() {

llvm/lib/Target/SPIRV/SPIRVTargetMachine.cpp

@@ -45,6 +45,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeSPIRVTarget() {
   initializeGlobalISel(PR);
   initializeSPIRVModuleAnalysisPass(PR);
   initializeSPIRVConvergenceRegionAnalysisWrapperPassPass(PR);
+  initializeSPIRVStructurizerPass(PR);
 }
 
 static std::string computeDataLayout(const Triple &TT) {

llvm/tools/opt/optdriver.cpp

@@ -376,7 +376,7 @@ static bool shouldPinPassToLegacyPM(StringRef Pass) {
       "expand-large-fp-convert",
       "callbrprepare",
       "scalarizer",
-  };
+      "structurizer"};
   for (const auto &P : PassNamePrefix)
     if (Pass.starts_with(P))
       return true;