From 879826dd5cbbd50314bd89caded240c2b12c156c Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Wed, 8 Apr 2026 19:03:26 +0100
Subject: Add poison as LLVM operand

---
 .../java/org/shedlang/compiler/backends/llvm/ir/LlvmIrSerializer.java | 4 ++++
 .../shedlang/compiler/backends/llvm/ir/ast/operands/LlvmOperand.java  | 2 +-
 .../compiler/backends/llvm/ir/ast/operands/LlvmOperandPoison.java     | 4 ++++
 3 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/operands/LlvmOperandPoison.java

(limited to 'src/main/java')

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 4508f90b..6a315272 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
@@ -248,6 +248,10 @@ public class LlvmIrSerializer {
                 writer.append("null");
             }
 
+            case LlvmOperandPoison _ -> {
+                writer.append("poison");
+            }
+
             case LlvmOperandStructure structure -> {
                 writer.append("{");
                 forEachInterspersed(
diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/operands/LlvmOperand.java b/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/operands/LlvmOperand.java
index 624e6dc0..9ada3b12 100644
--- a/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/operands/LlvmOperand.java
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/operands/LlvmOperand.java
@@ -1,4 +1,4 @@
 package org.shedlang.compiler.backends.llvm.ir.ast.operands;
 
-public sealed interface LlvmOperand permits LlvmOperandArray, LlvmOperandGetElementPtr, LlvmOperandInt, LlvmOperandNull, LlvmOperandPtrToInt, LlvmOperandStructure, LlvmVariable {
+public sealed interface LlvmOperand permits LlvmOperandArray, LlvmOperandGetElementPtr, LlvmOperandInt, LlvmOperandNull, LlvmOperandPoison, LlvmOperandPtrToInt, LlvmOperandStructure, LlvmVariable {
 }
diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/operands/LlvmOperandPoison.java b/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/operands/LlvmOperandPoison.java
new file mode 100644
index 00000000..b34cb6a5
--- /dev/null
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/ir/ast/operands/LlvmOperandPoison.java
@@ -0,0 +1,4 @@
+package org.shedlang.compiler.backends.llvm.ir.ast.operands;
+
+public record LlvmOperandPoison() implements LlvmOperand {
+}
-- 
cgit v1.2.3