[Mlir-commits] [mlir] [mlir] Make overloads of SymbolTable::replaceAllSymbolUses consistent. (PR #68320)

[Ingo Müller]

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@@ -0,0 +1,107 @@
+//===- SymbolTableTest.cpp - SymbolTable unit tests -----------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+#include "mlir/IR/SymbolTable.h"
+#include "../../test/lib/Dialect/Test/TestDialect.h"
+#include "mlir/IR/Verifier.h"
+#include "mlir/Interfaces/CallInterfaces.h"
+#include "mlir/Interfaces/FunctionInterfaces.h"
+#include "mlir/Parser/Parser.h"
+
+#include "gtest/gtest.h"
+
+using namespace mlir;
+
+namespace {
+TEST(SymbolTableTest, ReplaceAllSymbolUses) {
+  MLIRContext context;
+  context.getOrLoadDialect<test::TestDialect>();
+
+  auto testReplaceAllSymbolUses = [&](auto replaceFn) {
+    const static llvm::StringLiteral input = R"MLIR(
+      module {
+        test.conversion_func_op private @foo() {
+          "test.conversion_call_op"() { callee=@bar } : () -> ()
+          "test.return"() : () -> ()
+        }
+        test.conversion_func_op private @bar()
+      }
+    )MLIR";
+
+    // Set up IR and find func ops.
+    OwningOpRef<Operation *> module = parseSourceString(input, &context);
+    SymbolTable symbolTable(module.get());
+    auto ops = module->getRegion(0).getBlocks().front().getOperations().begin();
+    auto fooOp = cast<FunctionOpInterface>(ops++);
+    auto barOp = cast<FunctionOpInterface>(ops++);
+    ASSERT_EQ(fooOp.getNameAttr(), "foo");
+    ASSERT_EQ(barOp.getNameAttr(), "bar");
+
+    // Call test function that does symbol replacement.
+    LogicalResult res = replaceFn(symbolTable, module.get(), fooOp, barOp);
+    ASSERT_TRUE(succeeded(res));
+    ASSERT_TRUE(succeeded(verify(module.get())));
+
+    // Check that it got renamed.
+    bool calleeFound = false;
+    fooOp->walk([&](CallOpInterface callOp) {
+      StringAttr callee = callOp.getCallableForCallee()
+                              .dyn_cast<SymbolRefAttr>()
+                              .getLeafReference();
+      EXPECT_EQ(callee, "baz");
+      calleeFound = true;
+    });
+    EXPECT_TRUE(calleeFound);
+  };
+
+  // Symbol as `Operation *`, rename within module.
+  testReplaceAllSymbolUses(
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ingomueller-net wrote:

Hmm... I *thought* of a fixture but didn't take the step of looking up how to do it with googletest. I might do that on Monday.

https://github.com/llvm/llvm-project/pull/68320