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/* $OpenBSD: node.h,v 1.4 2008/08/17 18:40:13 ragge Exp $ */
/*
* Copyright (c) 2003 Anders Magnusson (ragge@ludd.luth.se).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef NODE_H
#define NODE_H
/*
* The node structure is the basic element in the compiler.
* Depending on the operator, it may be one of several types.
*
* This is rewritten to be a struct instead of a union as it
* was in the old compiler.
*/
typedef unsigned int TWORD;
#define NIL (NODE *)0
struct symtab;
struct suedef;
struct regw;
typedef struct node {
struct node *next;
int n_op;
union {
int _reg;
struct regw *_regw;
} n_3;
#define n_reg n_3._reg
#define n_regw n_3._regw
TWORD n_type;
TWORD n_qual;
int n_su;
union {
char * _name;
int _stsize;
union dimfun *_df;
} n_5;
union {
int _label;
int _stalign;
int _flags;
struct suedef *_sue;
} n_6;
union {
struct {
union {
struct node *_left;
CONSZ _lval;
#ifdef SPECIAL_INTEGERS
SPECLVAL _slval;
#endif
} n_l;
union {
struct node *_right;
int _rval;
struct symtab *_sp;
} n_r;
} n_u;
long double _dcon;
} n_f;
} NODE;
#define n_name n_5._name
#define n_stsize n_5._stsize
#define n_df n_5._df
#define n_label n_6._label
#define n_stalign n_6._stalign
#define n_flags n_6._flags
#define n_sue n_6._sue
#define n_left n_f.n_u.n_l._left
#define n_lval n_f.n_u.n_l._lval
#define n_slval n_f.n_u.n_l._slval
#define n_right n_f.n_u.n_r._right
#define n_rval n_f.n_u.n_r._rval
#define n_sp n_f.n_u.n_r._sp
#define n_dcon n_f._dcon
#define NLOCAL1 010000
#define NLOCAL2 020000
#define NLOCAL3 040000
/*
* Node types.
*
* MAXOP is the highest number used by the backend.
*/
#define FREE 1
/*
* Value nodes.
*/
#define NAME 2
#define ICON 4
#define FCON 5
#define REG 6
#define OREG 7
#define TEMP 8
#define XARG 9
/*
* Arithmetic nodes.
*/
#define PLUS 10
#define MINUS 11
#define DIV 12
#define MOD 13
#define MUL 14
/*
* Bitwise operations.
*/
#define AND 15
#define OR 16
#define ER 17
#define LS 18
#define RS 19
#define COMPL 20
#define UMUL 23
#define UMINUS 24
/*
* Logical compare nodes.
*/
#define EQ 25
#define NE 26
#define LE 27
#define LT 28
#define GE 29
#define GT 30
#define ULE 31
#define ULT 32
#define UGE 33
#define UGT 34
/*
* Branch nodes.
*/
#define CBRANCH 35
/*
* Convert types.
*/
#define FLD 36
#define SCONV 37
#define PCONV 38
#define PMCONV 39
#define PVCONV 40
/*
* Function calls.
*/
#define CALL 41
#define UCALL 42
#define FORTCALL 43
#define UFORTCALL 44
#define STCALL 45
#define USTCALL 46
/*
* Other used nodes.
*/
#define CCODES 47
#define CM 48
#define ASSIGN 49
#define STASG 50
#define STARG 51
#define FORCE 52
#define XASM 53
#define GOTO 54
#define RETURN 55
#define STREF 56
#define FUNARG 57
#define ADDROF 58
#define MAXOP 58
#endif
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