From c796f48cdf66aafaca202515848422e56aa0ef05 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sun, 1 Oct 2023 17:27:45 +0100
Subject: Remove alloc-stack instruction

---
 .../compiler/backends/llvm/LlvmPatioCodeGen.java         |  4 ----
 .../compiler/backends/wasm/WasmPatioCodeGen.java         |  4 ----
 .../org/shedlang/compiler/patio/ast/PatioSerializer.java |  7 -------
 .../compiler/patio/ast/instructions/PatioAllocStack.java | 16 ----------------
 .../patio/ast/instructions/PatioInstruction.java         |  2 +-
 5 files changed, 1 insertion(+), 32 deletions(-)
 delete mode 100644 src/main/java/org/shedlang/compiler/patio/ast/instructions/PatioAllocStack.java

(limited to 'src/main/java')

diff --git a/src/main/java/org/shedlang/compiler/backends/llvm/LlvmPatioCodeGen.java b/src/main/java/org/shedlang/compiler/backends/llvm/LlvmPatioCodeGen.java
index 78fb6fb9..167c85be 100644
--- a/src/main/java/org/shedlang/compiler/backends/llvm/LlvmPatioCodeGen.java
+++ b/src/main/java/org/shedlang/compiler/backends/llvm/LlvmPatioCodeGen.java
@@ -197,10 +197,6 @@ public class LlvmPatioCodeGen {
                 ));
             }
 
-            case PatioAllocStack patioAllocStack -> {
-                throw new UnsupportedOperationException();
-            }
-
             case PatioBoolToInt patioBoolToInt -> {
                 var targetResult = context.addPatioLocalToLlvmLocal(patioBoolToInt.target());
                 var target = targetResult.value;
diff --git a/src/main/java/org/shedlang/compiler/backends/wasm/WasmPatioCodeGen.java b/src/main/java/org/shedlang/compiler/backends/wasm/WasmPatioCodeGen.java
index 1848f727..dadfa918 100644
--- a/src/main/java/org/shedlang/compiler/backends/wasm/WasmPatioCodeGen.java
+++ b/src/main/java/org/shedlang/compiler/backends/wasm/WasmPatioCodeGen.java
@@ -140,10 +140,6 @@ public class WasmPatioCodeGen {
                 yield context;
             }
 
-            case PatioAllocStack patioAllocStack -> {
-                throw new UnsupportedOperationException();
-            }
-
             case PatioBoolToInt patioBoolToInt ->
                 generateOperandToPatioLocal(
                     patioBoolToInt.target(),
diff --git a/src/main/java/org/shedlang/compiler/patio/ast/PatioSerializer.java b/src/main/java/org/shedlang/compiler/patio/ast/PatioSerializer.java
index 5868ce3e..c8b51f0a 100644
--- a/src/main/java/org/shedlang/compiler/patio/ast/PatioSerializer.java
+++ b/src/main/java/org/shedlang/compiler/patio/ast/PatioSerializer.java
@@ -140,13 +140,6 @@ public class PatioSerializer {
                     dataLayoutToTree(allocHeap.layout())
                 );
 
-            case PatioAllocStack allocStack ->
-                treeList(
-                    treeIdentifier("alloc-stack"),
-                    operandToTree(allocStack.target()),
-                    typeToTree(allocStack.type())
-                );
-
             case PatioBoolToInt boolToInt ->
                 treeList(
                     treeIdentifier("bool-to-int"),
diff --git a/src/main/java/org/shedlang/compiler/patio/ast/instructions/PatioAllocStack.java b/src/main/java/org/shedlang/compiler/patio/ast/instructions/PatioAllocStack.java
deleted file mode 100644
index e94accd1..00000000
--- a/src/main/java/org/shedlang/compiler/patio/ast/instructions/PatioAllocStack.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package org.shedlang.compiler.patio.ast.instructions;
-
-import org.shedlang.compiler.patio.ast.operands.PatioLocalRef;
-import org.shedlang.compiler.patio.ast.types.PatioType;
-import org.shedlang.compiler.sources.Source;
-
-/**
- * Allocate space on the stack for the given type, and store the pointer
- * to the allocated memory in the target local.
- */
-public record PatioAllocStack(
-    PatioLocalRef target,
-    PatioType type,
-    Source source
-) implements PatioInstruction {
-}
diff --git a/src/main/java/org/shedlang/compiler/patio/ast/instructions/PatioInstruction.java b/src/main/java/org/shedlang/compiler/patio/ast/instructions/PatioInstruction.java
index 0c8d5721..f68f752e 100644
--- a/src/main/java/org/shedlang/compiler/patio/ast/instructions/PatioInstruction.java
+++ b/src/main/java/org/shedlang/compiler/patio/ast/instructions/PatioInstruction.java
@@ -2,6 +2,6 @@ package org.shedlang.compiler.patio.ast.instructions;
 
 import org.shedlang.compiler.sources.Source;
 
-public sealed interface PatioInstruction permits PatioAllocHeap, PatioAllocStack, PatioBoolToInt, PatioCall, PatioCallPointer, PatioDataPtrToInt, PatioIf, PatioIntAdd, PatioIntEquals, PatioIntNotEqual, PatioIntSub, PatioIntToBool, PatioIntToDataPtr, PatioLocalStore, PatioLoop, PatioLoopBreak, PatioLoopContinue, PatioMemoryLoad, PatioMemoryStore, PatioReturn, PatioVarLoad, PatioVarStore {
+public sealed interface PatioInstruction permits PatioAllocHeap, PatioBoolToInt, PatioCall, PatioCallPointer, PatioDataPtrToInt, PatioIf, PatioIntAdd, PatioIntEquals, PatioIntNotEqual, PatioIntSub, PatioIntToBool, PatioIntToDataPtr, PatioLocalStore, PatioLoop, PatioLoopBreak, PatioLoopContinue, PatioMemoryLoad, PatioMemoryStore, PatioReturn, PatioVarLoad, PatioVarStore {
     Source source();
 }
-- 
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