2 files changed, 23 insertions, 0 deletions
diff --git a/src/test/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializerInstructionTests.java b/src/test/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializerInstructionTests.java
index 99eda802..eb55a95c 100644
--- a/src/test/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializerInstructionTests.java
+++ b/src/test/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializerInstructionTests.java
@@ -196,6 +196,20 @@ public class LlvmIrSerializerInstructionTests {
     }
 
     @Test
+    public void truncIsSerialized() throws IOException {
+        var instruction = LlvmIr.trunc(
+            LlvmIr.variableLocal("target"),
+            LlvmTypes.INT_64,
+            LlvmIr.variableLocal("source"),
+            LlvmTypes.INT_32
+        );
+
+        var result = serializeToString(instruction, LlvmIrSerializer::serializeInstruction);
+
+        assertThat(result, equalTo("%target = trunc i64 %source to i32"));
+    }
+
+    @Test
     public void zextIsSerialized() throws IOException {
         var instruction = LlvmIr.zext(
             LlvmIr.variableLocal("target"),
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 78685315..5d957365 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
@@ -167,6 +167,15 @@ public class LlvmIr {
         return new LlvmSub(target, type, left, right);
     }
 
+    public static LlvmTrunc trunc(
+        LlvmVariable target,
+        LlvmType sourceType,
+        LlvmOperand value,
+        LlvmType targetType
+    ) {
+        return new LlvmTrunc(target, sourceType, value, targetType);
+    }
+
     public static LlvmTypedOperand typedOperand(LlvmType type, LlvmOperand value) {
         return new LlvmTypedOperand(type, value);
     }