/* $OpenBSD: macdefs.h,v 1.2 2007/11/01 10:52:58 otto 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. */ /* * Machine-dependent defines for both passes. */ /* * Convert (multi-)character constant to integer. */ #define makecc(val,i) lastcon = (lastcon<<8)|((val<<24)>>24); /* * Storage space requirements */ #define SZCHAR 8 #define SZBOOL 32 #define SZINT 32 #define SZFLOAT 32 #define SZDOUBLE 64 #define SZLDOUBLE 96 #define SZLONG 32 #define SZSHORT 16 #define SZLONGLONG 64 #define SZPOINT(t) 32 /* * Alignment constraints */ #define ALCHAR 8 #define ALBOOL 32 #define ALINT 32 #define ALFLOAT 32 #define ALDOUBLE 32 #define ALLDOUBLE 32 #define ALLONG 32 #define ALLONGLONG 32 #define ALSHORT 16 #define ALPOINT 32 #define ALSTRUCT 32 #define ALSTACK 32 /* * Min/max values. */ #define MIN_CHAR -128 #define MAX_CHAR 127 #define MAX_UCHAR 255 #define MIN_SHORT -32768 #define MAX_SHORT 32767 #define MAX_USHORT 65535 #define MIN_INT -1 #define MAX_INT 0x7fffffff #define MAX_UNSIGNED 0xffffffff #define MIN_LONG MIN_INT #define MAX_LONG MAX_INT #define MAX_ULONG MAX_UNSIGNED #define MIN_LONGLONG 0x8000000000000000LL #define MAX_LONGLONG 0x7fffffffffffffffLL #define MAX_ULONGLONG 0xffffffffffffffffULL #define CHAR_UNSIGNED #define TARGET_STDARGS #define BOOL_TYPE INT /* what used to store _Bool */ #define WCHAR_TYPE INT /* what used to store wchar_t */ #define ELFABI /* * Use large-enough types. */ typedef long long CONSZ; typedef unsigned long long U_CONSZ; typedef long long OFFSZ; #define CONFMT "%lld" /* format for printing constants */ #ifdef ELFABI #define LABFMT ".L%d" /* format for printing labels */ #else #define LABFMT "L%d" /* format for printing labels */ #endif #define STABLBL "LL%d" /* format for stab (debugging) labels */ #define STAB_LINE_ABSOLUTE /* S_LINE fields use absolute addresses */ #define MYP2TREE(p) myp2tree(p); #undef FIELDOPS /* no bit-field instructions */ #if 0 #define RTOLBYTES /* bytes are numbered right to left */ #endif #define ENUMSIZE(high,low) INT /* enums are always stored in full int */ /* Definitions mostly used in pass2 */ #define BYTEOFF(x) ((x)&03) #define wdal(k) (BYTEOFF(k)==0) #define BITOOR(x) (x) /* bit offset to oreg offset XXX die! */ #define STOARG(p) #define STOFARG(p) #define STOSTARG(p) #define szty(t) (((t) == DOUBLE || (t) == FLOAT || \ (t) == LONGLONG || (t) == ULONGLONG) ? 2 : (t) == LDOUBLE ? 3 : 1) /* * The PPC register definition are taken from apple docs. * * The classes used are: * A - general registers * B - 64-bit register pairs */ #define R0 0 // scratch register #define R1 1 // stack base pointer #define R2 2 #define R3 3 // return register / argument 0 #define R4 4 // return register (for longlong) / argument 1 #define R5 5 // scratch register / argument 2 #define R6 6 // scratch register / argument 3 #define R7 7 // scratch register / argument 4 #define R8 8 // scratch register / argument 5 #define R9 9 // scratch register / argument 6 #define R10 10 // scratch register / argument 7 #define R11 11 // scratch register #define R12 12 // scratch register #define R13 13 #define R14 14 #define R15 15 #define R16 16 #define R17 17 #define R18 18 #define R19 19 #define R20 20 #define R21 21 #define R22 22 #define R23 23 #define R24 24 #define R25 25 #define R26 26 #define R27 27 #define R28 28 #define R29 29 #define R30 30 #define R31 31 #define R3R4 32 #define R4R5 33 #define R5R6 34 #define R6R7 35 #define R7R8 36 #define R8R9 37 #define R9R10 38 #define R14R15 39 #define R16R17 40 #define R18R19 41 #define R20R21 42 #define R22R23 43 #define R24R25 44 #define R26R27 45 #define R28R29 46 #define R30R31 47 #define NUMCLASS 4 // XXX must always be 4 #define MAXREGS 48 #define RSTATUS \ 0, 0, SAREG|TEMPREG, SAREG|TEMPREG, \ SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, \ SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG, \ SAREG, SAREG, SAREG, SAREG, \ SAREG, SAREG, SAREG, SAREG, \ SAREG, SAREG, SAREG, SAREG, \ SAREG, SAREG, SAREG, SAREG, \ SAREG, SAREG, SAREG, SAREG, \ \ SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \ SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \ \ SBREG, SBREG, SBREG, SBREG, \ SBREG, SBREG, SBREG, SBREG, \ SBREG, #define ROVERLAP \ { -1 }, { -1 }, { -1 }, \ { R3R4, -1 }, { R3R4, R4R5, -1 }, \ { R4R5, R5R6, -1 }, { R5R6, R6R7, -1 }, \ { R6R7, R7R8, -1 }, { R7R8, R8R9, -1 }, \ { R8R9, R9R10, -1 }, { R9R10, -1 }, \ { -1 }, { -1 }, { -1 }, \ { R14R15, -1 }, { R14R15, -1 }, \ { R16R17, -1 }, { R16R17, -1 }, \ { R18R19, -1 }, { R18R19, -1 }, \ { R20R21, -1 }, { R20R21, -1 }, \ { R22R23, -1 }, { R22R23, -1 }, \ { R24R25, -1 }, { R24R25, -1 }, \ { R26R27, -1 }, { R26R27, -1 }, \ { R28R29, -1 }, { R28R29, -1 }, \ { R30R31, -1 }, { R30R31, -1 }, \ \ { R3, R4, R4R5, -1 }, { R4, R5, R3R4, R5R6, -1 }, \ { R5, R6, R4R5, R6R7, -1 }, { R6, R7, R5R6, R7R8, -1 }, \ { R7, R8, R6R7, R8R9, -1 }, { R8, R9, R7R8, R8R9, -1 }, \ { R9, R10, R8R9, -1 }, \ { R14, R15, -1 }, { R16, R17, -1 }, \ { R18, R19, -1 }, { R20, R21, -1 }, \ { R22, R23, -1 }, { R24, R25, -1 }, \ { R26, R27, -1 }, { R28, R29, -1 }, \ { R30, R31, -1 }, #if 0 #define BACKAUTO /* stack grows negatively for automatics */ #define BACKTEMP /* stack grows negatively for temporaries */ #endif #define ARGINIT (24*8) /* # bits above fp where arguments start */ #define AUTOINIT (56*8) /* # bits above fp where automatics start */ /* XXX - to die */ #define FPREG R1 /* frame pointer */ #if 0 #define STKREG R30 /* stack pointer */ #endif /* Return a register class based on the type of the node */ #define PCLASS(p) (p->n_type == LONGLONG || p->n_type == ULONGLONG ? SBREG : \ (p->n_type >= FLOAT && p->n_type <= LDOUBLE ? SCREG : SAREG)) #define GCLASS(x) (x < 32 ? CLASSA : CLASSB) #define DECRA(x,y) (((x) >> (y*6)) & 63) /* decode encoded regs */ #define ENCRD(x) (x) /* Encode dest reg in n_reg */ #define ENCRA1(x) ((x) << 6) /* A1 */ #define ENCRA2(x) ((x) << 12) /* A2 */ #define ENCRA(x,y) ((x) << (6+y*6)) /* encode regs in int */ #define RETREG(x) ((x) == ULONGLONG || (x) == LONGLONG ? R3R4 : R3) int COLORMAP(int c, int *r); #define MYREADER(p) myreader(p) #define MYCANON(p) mycanon(p) #define MYOPTIM #define SHSTR (MAXSPECIAL+1) /* short struct */ #define SFUNCALL (MAXSPECIAL+2) /* struct assign after function call */ #define SPCON (MAXSPECIAL+3) /* positive constant */ struct stub { struct { struct stub *q_forw, *q_back; } link; char *name; }; #define FIXEDSTACKSIZE 200 /* in bytes */