1 files changed, 49 insertions, 0 deletions
diff --git a/test/CAPI/standalone-capi-test.c b/test/CAPI/standalone-capi-test.c
new file mode 100644
index 0000000..54f3ca7
--- /dev/null
+++ b/test/CAPI/standalone-capi-test.c
@@ -0,0 +1,49 @@
+//===- standalone-cap-demo.c - Simple demo of C-API -----------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM
+// Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// RUN: standalone-capi-test 2>&1 | FileCheck %s
+
+#include <stdio.h>
+
+#include "Standalone-c/Dialects.h"
+#include "mlir-c/IR.h"
+#include "mlir-c/RegisterEverything.h"
+
+static void registerAllUpstreamDialects(MlirContext ctx) {
+  MlirDialectRegistry registry = mlirDialectRegistryCreate();
+  mlirRegisterAllDialects(registry);
+  mlirContextAppendDialectRegistry(ctx, registry);
+  mlirDialectRegistryDestroy(registry);
+}
+
+int main(int argc, char **argv) {
+  MlirContext ctx = mlirContextCreate();
+  // TODO: Create the dialect handles for the builtin dialects and avoid this.
+  // This adds dozens of MB of binary size over just the standalone dialect.
+  registerAllUpstreamDialects(ctx);
+  mlirDialectHandleRegisterDialect(mlirGetDialectHandle__standalone__(), ctx);
+
+  MlirModule module = mlirModuleCreateParse(
+      ctx, mlirStringRefCreateFromCString("%0 = arith.constant 2 : i32\n"
+                                          "%1 = standalone.foo %0 : i32\n"));
+  if (mlirModuleIsNull(module)) {
+    printf("ERROR: Could not parse.\n");
+    mlirContextDestroy(ctx);
+    return 1;
+  }
+  MlirOperation op = mlirModuleGetOperation(module);
+
+  // CHECK: %[[C:.*]] = arith.constant 2 : i32
+  // CHECK: standalone.foo %[[C]] : i32
+  mlirOperationDump(op);
+
+  mlirModuleDestroy(module);
+  mlirContextDestroy(ctx);
+  return 0;
+}