Add LLVM null operand

2 files changed, 13 insertions, 0 deletions

diff --git a/src/test/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializerOperandsTests.java b/src/test/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializerOperandsTests.java
index 1d6134e3..f8ff5921 100644
--- a/src/test/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializerOperandsTests.java
+++ b/src/test/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializerOperandsTests.java
@@ -12,6 +12,15 @@ import static org.zwobble.precisely.Matchers.equalTo;
 
 public class LlvmIrSerializerOperandsTests {
     @Test
+    public void nullIsSerializedAsNull() {
+        var operand = LlvmIr.operandNull();
+
+        var result = serializeToString(operand, LlvmIrSerializer::serializeOperand);
+
+        assertThat(result, equalTo("null"));
+    }
+
+    @Test
     public void intIsSerializedAsInt() {
         var operand = LlvmIr.operandInt(42);
 
diff --git a/src/test/java/org/shedlang/compiler/backends/llvm/ir/ast/LlvmIr.java b/src/test/java/org/shedlang/compiler/backends/llvm/ir/ast/LlvmIr.java
index a472096f..25dbe833 100644
--- a/src/test/java/org/shedlang/compiler/backends/llvm/ir/ast/LlvmIr.java
+++ b/src/test/java/org/shedlang/compiler/backends/llvm/ir/ast/LlvmIr.java
@@ -83,6 +83,10 @@ public class LlvmIr {
         return new LlvmOperandInt(value);
     }
 
+    public static LlvmOperandNull operandNull() {
+        return new LlvmOperandNull();
+    }
+
     public static LlvmOperand operandStructure(List<LlvmTypedOperand> elements) {
         return new LlvmOperandStructure(elements);
     }