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/CopyPropagation.h | 46 +++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

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

diff --git a/includes/compiler/CopyPropagation.h b/includes/compiler/CopyPropagation.h
index 841f8dc..8d80067 100644
--- a/includes/compiler/CopyPropagation.h
+++ b/includes/compiler/CopyPropagation.h
@@ -2,5 +2,51 @@
 #define COMPILER_COPYPROPAGATION_H
 
 #include "compiler/common.h"
+#include "compiler/UseDefChains.h"
+
+typedef int (*IsCandidateFunc)(PCode *);
+typedef int (*PropagatesToUseFunc)(int a, int b);
+typedef void (*PropagateAndFinishFunc)(int id);
+
+#ifdef __MWERKS__
+#pragma options align=mac68k
+#endif
+typedef struct Propagation {
+    IsCandidateFunc is_candidate;
+    PropagatesToUseFunc propagatestouse;
+    PropagateAndFinishFunc propagateandfinish;
+    char *name;
+    char *nameplural;
+    char *format;
+    Boolean computesUseDefChains;
+} Propagation;
+
+typedef struct Candidate {
+    PCode *pcode;
+    RegUseOrDef *list;
+} Candidate;
+
+typedef struct PropInfo {
+    UInt32 *vec0;
+    UInt32 *vec4;
+    UInt32 *vec8;
+    UInt32 *vecC;
+} PropInfo;
+#ifdef __MWERKS__
+#pragma options align=reset
+#endif
+
+extern int propagatedcopies;
+extern int propagated_instructions;
+extern int recursive_propagation;
+extern int number_of_candidates;
+extern Candidate *Candidates;
+extern PropInfo *propinfo;
+extern int *ncandidatesinblock;
+extern int *firstcandidateinblock;
+
+extern int precedes(PCode *a, PCode *b);
+extern void propagateinstructions(Object *proc, Propagation *config, int passCount, Boolean localflag);
+extern void propagatecopyinstructions(Object *proc, int flag);
 
 #endif
-- 
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