Initial commit.

2014-01-31 08:23:00 +13:00
commit 08a613ed0e
322 changed files with 45306 additions and 0 deletions
@@ -0,0 +1,55 @@
+
+#ifndef CODEGEN_H
+#define CODEGEN_H
+
+#include "std.h"
+
+enum{
+	IR_JUMP,IR_JUMPT,IR_JUMPF,IR_JUMPGE,
+
+	IR_SEQ,IR_MOVE,IR_MEM,IR_LOCAL,IR_GLOBAL,IR_ARG,IR_CONST,
+
+	IR_JSR,IR_RET,IR_AND,IR_OR,IR_XOR,IR_SHL,IR_SHR,IR_SAR,
+
+	IR_CALL,IR_RETURN,IR_CAST,
+	IR_NEG,IR_ADD,IR_SUB,IR_MUL,IR_DIV,
+	IR_SETEQ,IR_SETNE,IR_SETLT,IR_SETGT,IR_SETLE,IR_SETGE,
+
+	IR_FCALL,IR_FRETURN,IR_FCAST,
+	IR_FNEG,IR_FADD,IR_FSUB,IR_FMUL,IR_FDIV,
+	IR_FSETEQ,IR_FSETNE,IR_FSETLT,IR_FSETGT,IR_FSETLE,IR_FSETGE,
+};
+
+struct TNode{
+
+	int op;				//opcode
+	TNode *l,*r;		//args
+	int iconst;			//for CONST type_int
+	string sconst;		//for CONST type_string
+
+	TNode( int op,TNode *l=0,TNode *r=0 ):op(op),l(l),r(r),iconst(0){}
+	TNode( int op,TNode *l,TNode *r,int i ):op(op),l(l),r(r),iconst(i){}
+	TNode( int op,TNode *l,TNode *r,const string &s ):op(op),l(l),r(r),iconst(0),sconst(s){}
+	~TNode(){ delete l;delete r; }
+
+	void log();
+};
+
+class Codegen{
+public:
+	ostream &out;
+	bool debug;
+	Codegen( ostream &out,bool debug ):out( out ),debug( debug ){}
+
+	virtual void enter( const string &l,int frameSize )=0;
+	virtual void code( TNode *code )=0;
+	virtual void leave( TNode *cleanup,int pop_sz )=0;
+	virtual void label( const string &l )=0;
+	virtual void i_data( int i,const string &l="" )=0;
+	virtual void s_data( const string &s,const string &l="" )=0;
+	virtual void p_data( const string &p,const string &l="" )=0;
+	virtual void align_data( int n )=0;
+	virtual void flush()=0;
+};
+
+#endif