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

[llvmlistbot at llvm.org]

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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) {
+    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);
----------------
FMarno wrote:

I would say that it works for now so it's fine. If more conversion pattern that use function calls are created, then they can change this as needed, it should be easy enough. 

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