[Mlir-commits] [mlir] [mlir][spirv] Add spirv-to-llvm conversion for OpControlBarrier (PR #111864)

[Jakub Kuderski]

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@@ -1024,6 +1024,71 @@ class ReturnValuePattern : public SPIRVToLLVMConversion<spirv::ReturnValueOp> {
   }
 };
 
+static LLVM::LLVMFuncOp lookupOrCreateSPIRVFn(Operation *symbolTable,
+                                              StringRef name,
+                                              ArrayRef<Type> paramTypes,
+                                              Type resultType) {
+  auto func = dyn_cast_or_null<LLVM::LLVMFuncOp>(
+      SymbolTable::lookupSymbolIn(symbolTable, name));
+  if (func)
+    return func;
+
+  OpBuilder b(symbolTable->getRegion(0));
+  func = b.create<LLVM::LLVMFuncOp>(
+      symbolTable->getLoc(), name,
+      LLVM::LLVMFunctionType::get(resultType, paramTypes));
+  func.setCConv(LLVM::cconv::CConv::SPIR_FUNC);
+  func.setConvergent(true);
+  func.setNoUnwind(true);
+  func.setWillReturn(true);
+  return func;
+}
+
+static LLVM::CallOp createSPIRVBuiltinCall(Location loc, OpBuilder &rewriter,
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kuhar wrote:

nit: s/rewriter/builder/

https://github.com/llvm/llvm-project/pull/111864