Add LLVM unreachable instruction

3 files changed, 8 insertions, 1 deletions

diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializer.java b/src/main/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializer.java
index a68c7039..34bf31f5 100644
--- a/src/main/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializer.java
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializer.java
@@ -254,6 +254,9 @@ public class LlvmIrSerializer {
             case LlvmReturnVoid returnVoid -> {
                 writer.append("ret void");
             }
+            case LlvmUnreachable unreachable -> {
+                writer.append("unreachable");
+            }
         }
     }
 
diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/instructions/LlvmTerminatorInstruction.java b/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/instructions/LlvmTerminatorInstruction.java
index 12265086..1b8120ab 100644
--- a/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/instructions/LlvmTerminatorInstruction.java
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/instructions/LlvmTerminatorInstruction.java
@@ -1,4 +1,4 @@
 package org.shedlang.compiler.backends.llvm.ir.ast.instructions;
 
-public sealed interface LlvmTerminatorInstruction permits LlvmBr, LlvmBrUnconditional, LlvmReturn, LlvmReturnVoid {
+public sealed interface LlvmTerminatorInstruction permits LlvmBr, LlvmBrUnconditional, LlvmReturn, LlvmReturnVoid, LlvmUnreachable {
 }
diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/instructions/LlvmUnreachable.java b/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/instructions/LlvmUnreachable.java
new file mode 100644
index 00000000..ce50441a
--- /dev/null
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/instructions/LlvmUnreachable.java
@@ -0,0 +1,4 @@
+package org.shedlang.compiler.backends.llvm.ir.ast.instructions;
+
+public record LlvmUnreachable() implements LlvmTerminatorInstruction {
+}