source: mainline/uspace/app/pcc/arch/amd64/macdefs.h@ 423e5e87

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 423e5e87 was a7de7182, checked in by Jiří Zárevúcky <zarevucky.jiri@…>, 14 years ago

Added pcc source tree (contents of pcc-1.0.0.tgz)
  • Property mode set to 100644
File size: 8.8 KB
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1/* $Id: macdefs.h,v 1.17 2011/02/18 17:16:57 ragge Exp $ */
2/*
3 * Copyright (c) 2008 Michael Shalayeff
4 * Copyright (c) 2003 Anders Magnusson (ragge@ludd.luth.se).
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/*
31 * Machine-dependent defines for both passes.
32 */
33
34/*
35 * Convert (multi-)character constant to integer.
36 */
37#define makecc(val,i) lastcon = (lastcon<<8)|((val<<24)>>24);
38
39#define ARGINIT 128 /* # bits above fp where arguments start */
40#define AUTOINIT 0 /* # bits below fp where automatics start */
41
42/*
43 * Storage space requirements
44 */
45#define SZCHAR 8
46#define SZBOOL 8
47#define SZSHORT 16
48#define SZINT 32
49#define SZLONG 64
50#define SZPOINT(t) 64
51#define SZLONGLONG 64
52#define SZFLOAT 32
53#define SZDOUBLE 64
54#define SZLDOUBLE 128
55
56/*
57 * Alignment constraints
58 */
59#define ALCHAR 8
60#define ALBOOL 8
61#define ALSHORT 16
62#define ALINT 32
63#define ALLONG 64
64#define ALPOINT 64
65#define ALLONGLONG 64
66#define ALFLOAT 32
67#define ALDOUBLE 64
68#define ALLDOUBLE 128
69/* #undef ALSTRUCT amd64 struct alignment is member defined */
70#define ALSTACK 64
71#define ALMAX 128
72
73/*
74 * Min/max values.
75 */
76#define MIN_CHAR -128
77#define MAX_CHAR 127
78#define MAX_UCHAR 255
79#define MIN_SHORT -32768
80#define MAX_SHORT 32767
81#define MAX_USHORT 65535
82#define MIN_INT (-0x7fffffff-1)
83#define MAX_INT 0x7fffffff
84#define MAX_UNSIGNED 0xffffffffU
85#define MIN_LONG 0x8000000000000000L
86#define MAX_LONG 0x7fffffffffffffffL
87#define MAX_ULONG 0xffffffffffffffffUL
88#define MIN_LONGLONG 0x8000000000000000LL
89#define MAX_LONGLONG 0x7fffffffffffffffLL
90#define MAX_ULONGLONG 0xffffffffffffffffULL
91
92/* Default char is signed */
93#undef CHAR_UNSIGNED
94#define BOOL_TYPE CHAR /* what used to store _Bool */
95
96/*
97 * Use large-enough types.
98 */
99typedef long long CONSZ;
100typedef unsigned long long U_CONSZ;
101typedef long long OFFSZ;
102
103#define CONFMT "%lld" /* format for printing constants */
104#define LABFMT ".L%d" /* format for printing labels */
105#define STABLBL ".LL%d" /* format for stab (debugging) labels */
106#ifdef LANG_F77
107#define BLANKCOMMON "_BLNK_"
108#define MSKIREG (M(TYSHORT)|M(TYLONG))
109#define TYIREG TYLONG
110#define FSZLENG FSZLONG
111#define AUTOREG EBP
112#define ARGREG EBP
113#define ARGOFFSET 8
114#endif
115
116#define BACKAUTO /* stack grows negatively for automatics */
117#define BACKTEMP /* stack grows negatively for temporaries */
118
119#undef FIELDOPS /* no bit-field instructions */
120#define RTOLBYTES /* bytes are numbered right to left */
121
122#define ENUMSIZE(high,low) INT /* enums are always stored in full int */
123
124#define FINDMOPS /* i386 has instructions that modifies memory */
125
126#define CC_DIV_0 /* division by zero is safe in the compiler */
127
128/* Definitions mostly used in pass2 */
129
130#define BYTEOFF(x) ((x)&07)
131#define wdal(k) (BYTEOFF(k)==0)
132#define BITOOR(x) (x) /* bit offset to oreg offset XXX die! */
133
134#define STOARG(p)
135#define STOFARG(p)
136#define STOSTARG(p)
137#define genfcall(a,b) gencall(a,b)
138
139/* How many integer registers are needed? (used for stack allocation) */
140#define szty(t) (t < LONG || t == FLOAT ? 1 : t == LDOUBLE ? 4 : 2)
141
142/*
143 * The amd64 architecture has a much cleaner interface to its registers
144 * than the x86, even though a part of the register block comes from
145 * the x86 architecture. Therefore currently only two non-overlapping
146 * register classes are used; integer and xmm registers.
147 *
148 * All registers are given a sequential number to
149 * identify it which must match rnames[] in local2.c.
150 *
151 * The classes used on amd64 are:
152 * A - integer registers
153 * B - xmm registers
154 * C - x87 registers
155 */
156#define RAX 000
157#define RDX 001
158#define RCX 002
159#define RBX 003
160#define RSI 004
161#define RDI 005
162#define RBP 006
163#define RSP 007
164#define R08 010
165#define R09 011
166#define R10 012
167#define R11 013
168#define R12 014
169#define R13 015
170#define R14 016
171#define R15 017
172
173#define XMM0 020
174#define XMM1 021
175#define XMM2 022
176#define XMM3 023
177#define XMM4 024
178#define XMM5 025
179#define XMM6 026
180#define XMM7 027
181#define XMM8 030
182#define XMM9 031
183#define XMM10 032
184#define XMM11 033
185#define XMM12 034
186#define XMM13 035
187#define XMM14 036
188#define XMM15 037
189
190#define MAXREGS 050 /* 40 registers */
191
192#define RSTATUS \
193 SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG|PERMREG, \
194 SAREG|TEMPREG, SAREG|TEMPREG, 0, 0, \
195 SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, \
196 SAREG|PERMREG, SAREG|PERMREG, SAREG|PERMREG, SAREG|PERMREG, \
197 SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \
198 SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \
199 SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \
200 SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \
201 SCREG, SCREG, SCREG, SCREG, SCREG, SCREG, SCREG, SCREG,
202
203
204/* no overlapping registers at all */
205#define ROVERLAP \
206 { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, \
207 { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, \
208 { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, \
209 { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, \
210 { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 },
211
212
213/* Return a register class based on the type of the node */
214#define PCLASS(p) (p->n_type == FLOAT || p->n_type == DOUBLE ? SBREG : \
215 p->n_type == LDOUBLE ? SCREG : SAREG)
216
217#define NUMCLASS 3 /* highest number of reg classes used */
218
219int COLORMAP(int c, int *r);
220#define GCLASS(x) (x < 16 ? CLASSA : x < 32 ? CLASSB : CLASSC)
221#define DECRA(x,y) (((x) >> (y*8)) & 255) /* decode encoded regs */
222#define ENCRD(x) (x) /* Encode dest reg in n_reg */
223#define ENCRA1(x) ((x) << 8) /* A1 */
224#define ENCRA2(x) ((x) << 16) /* A2 */
225#define ENCRA(x,y) ((x) << (8+y*8)) /* encode regs in int */
226
227#define RETREG(x) (x == FLOAT || x == DOUBLE ? XMM0 : \
228 x == LDOUBLE ? 32 : RAX)
229
230/* XXX - to die */
231#define FPREG RBP /* frame pointer */
232#define STKREG RSP /* stack pointer */
233
234#define SHSTR (MAXSPECIAL+1) /* short struct */
235#define SFUNCALL (MAXSPECIAL+2) /* struct assign after function call */
236#define SPCON (MAXSPECIAL+3) /* positive nonnamed constant */
237
238/*
239 * Specials that indicate the applicability of machine idioms.
240 */
241#define SMIXOR (MAXSPECIAL+4)
242#define SMILWXOR (MAXSPECIAL+5)
243#define SMIHWXOR (MAXSPECIAL+6)
244#define SCON32 (MAXSPECIAL+7) /* 32-bit constant */
245
246/*
247 * i386-specific symbol table flags.
248 */
249#define SBEENHERE SLOCAL1
250#define STLS SLOCAL2
251
252/*
253 * Extended assembler macros.
254 */
255int xasmconstregs(char *);
256void targarg(char *w, void *arg, int n);
257#define XASM_TARGARG(w, ary) \
258 (w[1] == 'b' || w[1] == 'h' || w[1] == 'w' || w[1] == 'k' ? \
259 w++, targarg(w, ary, n), 1 : 0)
260int numconv(void *ip, void *p, void *q);
261#define XASM_NUMCONV(ip, p, q) numconv(ip, p, q)
262#define XASMCONSTREGS(x) xasmconstregs(x)
263
264/*
265 * builtins.
266 */
267#define TARGET_VALIST
268#define TARGET_STDARGS
269#define TARGET_BUILTINS \
270 { "__builtin_stdarg_start", amd64_builtin_stdarg_start, 2 }, \
271 { "__builtin_va_start", amd64_builtin_stdarg_start, 2 }, \
272 { "__builtin_va_arg", amd64_builtin_va_arg, 2 }, \
273 { "__builtin_va_end", amd64_builtin_va_end, 1 }, \
274 { "__builtin_va_copy", amd64_builtin_va_copy, 2 }, \
275 { "__builtin_frame_address", i386_builtin_frame_address, -1 }, \
276 { "__builtin_return_address", i386_builtin_return_address, -1 },
277
278#define NODE struct node
279struct node;
280NODE *amd64_builtin_stdarg_start(NODE *f, NODE *a, unsigned int);
281NODE *amd64_builtin_va_arg(NODE *f, NODE *a, unsigned int);
282NODE *amd64_builtin_va_end(NODE *f, NODE *a, unsigned int);
283NODE *amd64_builtin_va_copy(NODE *f, NODE *a, unsigned int);
284NODE *i386_builtin_frame_address(NODE *f, NODE *a, unsigned int);
285NODE *i386_builtin_return_address(NODE *f, NODE *a, unsigned int);
286#undef NODE
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