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

[Victor Perez]

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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);
+    func.setNoUnwind(true);
+    func.setWillReturn(true);
+  }
+  return func;
+}
+
+static LLVM::CallOp createSPIRVBuiltinCall(Location loc,
+                                           ConversionPatternRewriter &rewriter,
+                                           LLVM::LLVMFuncOp func,
+                                           ValueRange args) {
+  auto call = rewriter.create<LLVM::CallOp>(loc, func, args);
+  call.setCConv(func.getCConv());
+  call.setConvergentAttr(func.getConvergentAttr());
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victor-eds wrote:

Same.

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