Support string-add in LLVM backend

1 files changed, 28 insertions, 0 deletions

diff --git a/src/test/java/org/shedlang/compiler/backends/llvm/LlvmCodeGenStringAddTests.java b/src/test/java/org/shedlang/compiler/backends/llvm/LlvmCodeGenStringAddTests.java
new file mode 100644
index 00000000..29fa4370
--- /dev/null
+++ b/src/test/java/org/shedlang/compiler/backends/llvm/LlvmCodeGenStringAddTests.java
@@ -0,0 +1,28 @@
+package org.shedlang.compiler.backends.llvm;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.shedlang.compiler.backends.llvm.ir.ast.LlvmIr;
+import org.shedlang.compiler.stackir.instructions.Instructions;
+import org.shedlang.compiler.testing.snapshots.SnapshotResolver;
+import org.shedlang.compiler.testing.snapshots.Snapshotter;
+
+import java.io.IOException;
+
+import static org.shedlang.compiler.backends.llvm.LlvmCodeGenTesting.serializeContext;
+
+@ExtendWith({SnapshotResolver.class})
+public class LlvmCodeGenStringAddTests {
+    @Test
+    public void stringAddIsCompiledToCallToRuntimeStringAdd(Snapshotter snapshotter) throws IOException {
+        var instruction = Instructions.stringAdd();
+        var context = LlvmCodeGenContext.EMPTY
+            .push(LlvmIr.variableLocal("a"))
+            .push(LlvmIr.variableLocal("b"))
+            .push(LlvmIr.variableLocal("c"));
+
+        var result = LlvmCodeGen.generateInstruction(instruction, context);
+
+        snapshotter.assertSnapshot(serializeContext(result));
+    }
+}