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#pragma once
typedef struct _PCodeArg {
unsigned int _0;
unsigned int _4;
unsigned int _8;
} PCodeArg;
typedef struct _PCode {
struct _PCode *nextPCode;
struct _PCode *prevPCode;
struct _PCBlock *block;
unsigned int xx_C;
unsigned int _10;
int flags;
unsigned int _18;
unsigned int _1C;
short op;
short argCount;
PCodeArg args[0];
} PCode;
typedef struct _PCLabel {
struct _PCLabel *nextLabel;
struct _PCBlock *block;
short resolved;
short index;
} PCLabel;
typedef struct _PCLink {
struct _PCLink *nextLink;
struct _PCBlock *block;
} PCLink;
typedef struct _PCBlock {
struct _PCBlock *nextBlock;
struct _PCBlock *prevBlock;
PCLabel *labels;
PCLink *predecessors;
PCLink *successors;
PCode *firstPCode;
PCode *lastPCode;
int blockIndex;
int codeOffset; // in bytes
int loopWeight;
short pcodeCount;
unsigned short flags;
} PCBlock;
/* PCode Flags */
enum {
fPCodeFlag1 = 1,
fPCodeFlag2 = 2,
fPCodeFlag4 = 4,
fPCodeFlag8 = 8,
fPCodeFlag10 = 0x10,
fIsPtrOp = 0x20,
fIsConst = 0x40,
fIsVolatile = 0x80,
fSideEffects = 0x100,
fPCodeFlag200 = 0x200,
fPCodeFlag400 = 0x400,
fPCodeFlag800 = 0x800,
fPCodeFlag1000 = 0x1000,
fCommutative = 0x2000,
fIsCSE = 0x4000,
fOverflow = 0x800000,
fLink = 0x1000000,
fBranchNotTaken = 0x4000000,
fBranchTaken = 0x8000000,
fAbsolute = 0x10000000,
fSetsCarry = 0x10000000,
};
enum {
fPCBlockFlag1 = 1,
fPCBlockFlag2 = 2,
fPCBlockFlag4 = 4,
fPCBlockFlag8 = 8,
fPCBlockFlag10 = 0x10,
fPCBlockFlag20 = 0x20
};
extern PCBlock *pcbasicblocks;
extern PCBlock *pclastblock;
extern void *prologue;
extern void *epilogue;
extern PCBlock **depthfirstordering;
extern int pcblockcount;
extern int pcloopweight;
extern void initpcode();
extern PCode *makepcode(short op, ...);
extern void emitpcode(short op, ...);
extern PCode *copypcode(PCode *pcode);
extern PCLabel *makepclabel();
extern PCBlock *makepcblock();
extern void pclabel(PCBlock *block, PCLabel *label);
extern void pcbranch(PCBlock *block, PCLabel *label);
extern void pccomputepredecessors();
extern void deleteblock(PCBlock *block);
extern void deleteunreachableblocks();
extern void appendpcode(PCBlock *block, PCode *pcode);
extern void deletepcode(PCode *pcode);
extern void insertpcodebefore(PCode *anchor, PCode *newpcode);
extern void insertpcodeafter(PCode *anchor, PCode *newpcode);
extern void setpcodeflags(int flags);
extern void clearpcodeflags(int flags);
extern int pccomputeoffsets();
extern void computedepthfirstordering();
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