[mlir][SPIRV] Enable use of opaque-pointers in spirv-cpu-runner

[zero9178]

Summary

Part of https://discourse.llvm.org/t/rfc-switching-the-llvm-dialect-and-dialect-lowerings-to-opaque-pointers/68179

All passes required for lowering have already been successfully converted to allowing opaque-pointers. Switching the Spir-V runner to opaque-pointers is therefore only a matter of turning it on in these conversion passes. Regression tests also did not find any issues.

mlir/tools/mlir-spirv-cpu-runner/mlir-spirv-cpu-runner.cpp

 static LogicalResult runMLIRPasses(Operation *module,
                                    JitRunnerOptions &options) {
   PassManager passManager(module->getContext(),
                           module->getName().getStringRef());
   applyPassManagerCLOptions(passManager);
   passManager.addPass(createGpuKernelOutliningPass());
   passManager.addPass(createConvertGPUToSPIRVPass(/*mapMemorySpace=*/true));
 
+  auto enableOpaquePointers = [](auto options) {
+    options.useOpaquePointers = true;
+    return options;
+  };
+
   OpPassManager &nestedPM = passManager.nest<spirv::ModuleOp>();
   nestedPM.addPass(spirv::createSPIRVLowerABIAttributesPass());
   nestedPM.addPass(spirv::createSPIRVUpdateVCEPass());
-  passManager.addPass(createLowerHostCodeToLLVMPass());
-  passManager.addPass(createConvertSPIRVToLLVMPass());
+  passManager.addPass(createLowerHostCodeToLLVMPass(
+      enableOpaquePointers(LowerHostCodeToLLVMPassOptions{})));
+  passManager.addPass(createConvertSPIRVToLLVMPass(
+      enableOpaquePointers(ConvertSPIRVToLLVMPassOptions{})));
   return passManager.run(module);
 }
 
 int main(int argc, char **argv) {
   llvm::InitLLVM y(argc, argv);
 
   llvm::InitializeNativeTarget();
   llvm::InitializeNativeTargetAsmPrinter();