From 25bab8b1fb2fc851ea3f1f630b3de65ca6afdc22 Mon Sep 17 00:00:00 2001
From: Ash Wolf <ninji@wuffs.org>
Date: Wed, 14 Dec 2022 00:16:59 +0000
Subject: haha it's been a while since i last committed, hasn't it

---
 includes/compiler/UseDefChains.h | 60 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

(limited to 'includes/compiler/UseDefChains.h')

diff --git a/includes/compiler/UseDefChains.h b/includes/compiler/UseDefChains.h
index bcdbfe0..6957897 100644
--- a/includes/compiler/UseDefChains.h
+++ b/includes/compiler/UseDefChains.h
@@ -2,5 +2,65 @@
 #define COMPILER_USEDEFCHAINS_H
 
 #include "compiler/common.h"
+#include "compiler/Registers.h"
+#include "compiler/PCodeInfo.h"
+
+#ifdef __MWERKS__
+#pragma options align=mac68k
+#endif
+typedef struct TinyValue {
+    PCOpKind kind;
+    unsigned char arg;
+    union {
+        short reg;
+        Object *object;
+    } u;
+} TinyValue;
+
+typedef struct UseDefInfo {
+    UInt32 *defvec0;
+    UInt32 *defvec4;
+    UInt32 *defvec8;
+    UInt32 *defvecC;
+    UInt32 *usevec10;
+    UInt32 *usevec14;
+    UInt32 *usevec18;
+    UInt32 *usevec1C;
+} UseDefInfo;
+
+typedef struct UseOrDef {
+    PCode *pcode;
+    TinyValue v;
+} UseOrDef;
+
+typedef struct RegUseOrDef {
+    struct RegUseOrDef *next;
+    int id;
+} RegUseOrDef;
+
+typedef struct ObjectUseDef {
+    struct ObjectUseDef *next;
+    struct ObjectUseDef *leftchild;
+    struct ObjectUseDef *rightchild;
+    Object *object;
+    RegUseOrDef *uses;
+    RegUseOrDef *defs;
+} ObjectUseDef;
+#ifdef __MWERKS__
+#pragma options align=reset
+#endif
+
+extern int number_of_Defs;
+extern UseOrDef *Defs;
+extern RegUseOrDef **reg_Defs[RegClassMax];
+extern int number_of_Uses;
+extern UseOrDef *Uses;
+extern RegUseOrDef **reg_Uses[RegClassMax];
+extern UseDefInfo *usedefinfo;
+extern ObjectUseDef *objectusedefs;
+extern ObjectUseDef *objectusedeflist;
+
+extern ObjectUseDef *findobjectusedef(Object *object);
+extern void computeusedefchains(int flag);
 
 #endif
-- 
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