OpenBSD-4.6/usr.bin/pcc/powerpc/macdefs.h
/* $OpenBSD: macdefs.h,v 1.4 2008/04/11 20:45:52 stefan 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.
*/
#define ELFABI
/*
* 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
#ifdef ELFABI
#define ALLONGLONG 64
#else
#define ALLONGLONG 32
#endif
#define ALSHORT 16
#define ALPOINT 32
#define ALSTRUCT 32
#define ALSTACK (16*SZCHAR)
/*
* 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 BOOL_TYPE INT /* what used to store _Bool */
#define WCHAR_TYPE INT /* what used to store wchar_t */
/*
* 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 */
#if defined(ELFABI)
#define LABFMT ".L%d" /* format for printing labels */
#define REGPREFIX "%" /* format for printing registers */
#elif defined(MACHOABI)
#define LABFMT "L%d" /* format for printing labels */
#define REGPREFIX
#else
#error undefined ABI
#endif
#define STABLBL "LL%d" /* format for stab (debugging) labels */
#ifdef MACHOABI
#define STAB_LINE_ABSOLUTE /* S_LINE fields use absolute addresses */
#endif
#undef FIELDOPS /* no bit-field instructions */
#define ENUMSIZE(high,low) INT /* enums are always stored in full int */
/* Definitions mostly used in pass2 */
#define BYTEOFF(x) ((x)&03)
#define BITOOR(x) (x) /* bit offset to oreg offset XXX die! */
#define szty(t) (((t) == DOUBLE || (t) == LDOUBLE || \
DEUNSIGN(t) == LONGLONG) ? 2 : 1)
/*
* The PPC register definition are taken from apple docs.
*
* The classes used are:
* A - general registers
* B - 64-bit register pairs
* C - floating-point registers
*/
#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 F0 48 // scratch register
#define F1 49 // return value 0 / argument 0
#define F2 50 // return value 1 / argument 1
#define F3 51 // return value 2 / argument 2
#define F4 52 // return value 3 / argument 3
#define F5 53 // argument 4
#define F6 54 // argument 5
#define F7 55 // argument 6
#define F8 56 // argument 7
#define F9 57 // argument 8
#define F10 58 // argument 9
#define F11 59 // argument 10
#define F12 60 // argument 11
#define F13 61 // argument 12
#define F14 62
#define F15 63
#define F16 64
#define F17 65
#define F18 66
#define F19 67
#define F20 68
#define F21 69
#define F22 70
#define F23 71
#define F24 72
#define F25 73
#define F26 74
#define F27 75
#define F28 76
#define F29 77
#define F30 78
#define F31 79
#define NUMCLASS 3
#define MAXREGS 64 // XXX cannot have more than 64
#define RSTATUS \
0, /* R0 */ \
0, /* R1 */ \
SAREG|TEMPREG, /* R2 */ \
SAREG|TEMPREG, /* R3 */ \
SAREG|TEMPREG, /* R4 */ \
SAREG|TEMPREG, /* R5 */ \
SAREG|TEMPREG, /* R6 */ \
SAREG|TEMPREG, /* R7 */ \
SAREG|TEMPREG, /* R8 */ \
SAREG|TEMPREG, /* R9 */ \
SAREG|TEMPREG, /* R10 */ \
SAREG|TEMPREG, /* R11 */ \
SAREG|TEMPREG, /* R12 */ \
SAREG, /* R13 */ \
SAREG, /* R14 */ \
SAREG, /* R15 */ \
SAREG, /* R16 */ \
SAREG, /* R17 */ \
SAREG, /* R18 */ \
SAREG, /* R19 */ \
SAREG, /* R20 */ \
SAREG, /* R21 */ \
SAREG, /* R22 */ \
SAREG, /* R23 */ \
SAREG, /* R24 */ \
SAREG, /* R25 */ \
SAREG, /* R26 */ \
SAREG, /* R27 */ \
SAREG, /* R28 */ \
SAREG, /* R29 */ \
SAREG, /* R30 */ \
SAREG, /* R31 */ \
\
SBREG|TEMPREG, /* R3R4 */ \
SBREG|TEMPREG, /* R4R5 */ \
SBREG|TEMPREG, /* R5R6 */ \
SBREG|TEMPREG, /* R6R7 */ \
SBREG|TEMPREG, /* R7R8 */ \
SBREG|TEMPREG, /* R8R9 */ \
SBREG|TEMPREG, /* R9R10 */ \
\
SBREG, /* R14R15 */ \
SBREG, /* R16R17 */ \
SBREG, /* R18R19 */ \
SBREG, /* R20R21 */ \
SBREG, /* R22R23 */ \
SBREG, /* R24R25 */ \
SBREG, /* R26R2k */ \
SBREG, /* R28R29 */ \
SBREG, /* R30R31 */ \
\
SCREG|TEMPREG, /* F0 */ \
SCREG|TEMPREG, /* F1 */ \
SCREG|TEMPREG, /* F2 */ \
SCREG|TEMPREG, /* F3 */ \
SCREG|TEMPREG, /* F4 */ \
SCREG|TEMPREG, /* F5 */ \
SCREG|TEMPREG, /* F6 */ \
SCREG|TEMPREG, /* F7 */ \
SCREG|TEMPREG, /* F8 */ \
SCREG|TEMPREG, /* F9 */ \
SCREG|TEMPREG, /* F10 */ \
SCREG|TEMPREG, /* F11 */ \
SCREG|TEMPREG, /* F12 */ \
SCREG|TEMPREG, /* F13 */ \
SCREG, /* F14 */ \
SCREG, /* F15 */ \
#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 }, \
\
{ -1 }, { -1 }, { -1 }, { -1 }, \
{ -1 }, { -1 }, { -1 }, { -1 }, \
{ -1 }, { -1 }, { -1 }, { -1 }, \
{ -1 }, { -1 }, { -1 }, { -1 }, \
/*
* According to the ABI documents, there isn't really a frame pointer;
* all references to data on the stack (autos and parameters) are
* indexed relative to the stack pointer. However, pcc isn't really
* capable of running in this manner, and expects a frame pointer.
*/
#define SPREG R1 /* stack pointer */
#define FPREG R30 /* frame pointer */
#define GOTREG R31 /* global offset table (PIC) */
#ifdef FPREG
#define ARGINIT (24*8) /* # bits above fp where arguments start */
#define AUTOINIT (8*8) /* # bits above fp where automatics start */
#define BACKAUTO /* stack grows negatively for automatics */
#define BACKTEMP /* stack grows negatively for temporaries */
#else
#define ARGINIT (24*8) /* # bits above fp where arguments start */
#define AUTOINIT (56*8) /* # bits above fp where automatics start */
#endif
/* Return a register class based on the type of the node */
#define PCLASS(p) (1 << gclass((p)->n_type))
#define GCLASS(x) ((x) < 32 ? CLASSA : ((x) < 48 ? CLASSB : CLASSC))
#define DECRA(x,y) (((x) >> (y*6)) & 63) /* decode encoded regs */
#define ENCRA(x,y) ((x) << (6+y*6)) /* encode regs in int */
#define ENCRD(x) (x) /* Encode dest reg in n_reg */
#define RETREG(x) retreg(x)
int COLORMAP(int c, int *r);
int retreg(int ty);
#define SHSTR (MAXSPECIAL+1) /* short struct */
#define SFUNCALL (MAXSPECIAL+2) /* struct assign after function call */
#define SPCON (MAXSPECIAL+3) /* positive constant */
int features(int f);
#define FEATURE_BIGENDIAN 0x00010000
#define FEATURE_PIC 0x00020000
#define FEATURE_HARDFLOAT 0x00040000
struct stub {
struct { struct stub *q_forw, *q_back; } link;
char *name;
};
extern struct stub stublist;
extern struct stub nlplist;
void addstub(struct stub *list, char *name);
#define TARGET_STDARGS
#define TARGET_BUILTINS \
{ "__builtin_stdarg_start", powerpc_builtin_stdarg_start }, \
{ "__builtin_va_arg", powerpc_builtin_va_arg }, \
{ "__builtin_va_end", powerpc_builtin_va_end }, \
{ "__builtin_va_copy", powerpc_builtin_va_copy }, \
{ "__builtin_return_address", powerpc_builtin_return_address },
#define NODE struct node
struct node;
NODE *powerpc_builtin_stdarg_start(NODE *f, NODE *a);
NODE *powerpc_builtin_va_arg(NODE *f, NODE *a);
NODE *powerpc_builtin_va_end(NODE *f, NODE *a);
NODE *powerpc_builtin_va_copy(NODE *f, NODE *a);
NODE *powerpc_builtin_return_address(NODE *f, NODE *a);
#undef NODE
#define NARGREGS 8
#ifdef ELFABI
#define COM " # "
#else
#define COM " ; "
#endif