1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/***********************************************************************/
/* */
/* Coq Compiler */
/* */
/* Benjamin Gregoire, projets Logical and Cristal */
/* INRIA Rocquencourt */
/* */
/* */
/***********************************************************************/
/* Arnaud Spiwack: expanded the virtual machine with operators used
for fast computation of bounded (31bits) integers */
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <caml/config.h>
#include <caml/misc.h>
#include <caml/mlvalues.h>
#include <caml/fail.h>
#include <caml/memory.h>
#include "coq_instruct.h"
#include "coq_fix_code.h"
#ifdef THREADED_CODE
char ** coq_instr_table;
char * coq_instr_base;
int arity[STOP+1];
void init_arity () {
/* instruction with zero operand */
arity[ACC0]=arity[ACC1]=arity[ACC2]=arity[ACC3]=arity[ACC4]=arity[ACC5]=
arity[ACC6]=arity[ACC7]=arity[PUSH]=arity[PUSHACC0]=arity[PUSHACC1]=
arity[PUSHACC2]=arity[PUSHACC3]=arity[PUSHACC4]=arity[PUSHACC5]=
arity[PUSHACC6]=arity[PUSHACC7]=arity[ENVACC1]=arity[ENVACC2]=
arity[ENVACC3]=arity[ENVACC4]=arity[PUSHENVACC1]=arity[PUSHENVACC2]=
arity[PUSHENVACC3]=arity[PUSHENVACC4]=arity[APPLY1]=arity[APPLY2]=
arity[APPLY3]=arity[RESTART]=arity[OFFSETCLOSUREM2]=
arity[OFFSETCLOSURE0]=arity[OFFSETCLOSURE2]=arity[PUSHOFFSETCLOSUREM2]=
arity[PUSHOFFSETCLOSURE0]=arity[PUSHOFFSETCLOSURE2]=
arity[GETFIELD0]=arity[GETFIELD1]=arity[SETFIELD0]=arity[SETFIELD1]=
arity[CONST0]=arity[CONST1]=arity[CONST2]=arity[CONST3]=
arity[PUSHCONST0]=arity[PUSHCONST1]=arity[PUSHCONST2]=arity[PUSHCONST3]=
arity[ACCUMULATE]=arity[STOP]=arity[MAKEPROD]=
arity[ADDINT31]=arity[ADDCINT31]=arity[ADDCARRYCINT31]=
arity[SUBINT31]=arity[SUBCINT31]=arity[SUBCARRYCINT31]=
arity[MULCINT31]=arity[MULINT31]=arity[COMPAREINT31]=
arity[DIV21INT31]=arity[DIVINT31]=arity[ADDMULDIVINT31]=
arity[HEAD0INT31]=arity[TAIL0INT31]=
arity[COMPINT31]=arity[DECOMPINT31]=
arity[ORINT31]=arity[ANDINT31]=arity[XORINT31]=0;
/* instruction with one operand */
arity[ACC]=arity[PUSHACC]=arity[POP]=arity[ENVACC]=arity[PUSHENVACC]=
arity[PUSH_RETADDR]=arity[APPLY]=arity[APPTERM1]=arity[APPTERM2]=
arity[APPTERM3]=arity[RETURN]=arity[GRAB]=arity[OFFSETCLOSURE]=
arity[PUSHOFFSETCLOSURE]=arity[GETGLOBAL]=arity[PUSHGETGLOBAL]=
arity[MAKEBLOCK1]=arity[MAKEBLOCK2]=arity[MAKEBLOCK3]=arity[MAKEBLOCK4]=
arity[MAKEACCU]=arity[CONSTINT]=arity[PUSHCONSTINT]=arity[GRABREC]=
arity[PUSHFIELDS]=arity[GETFIELD]=arity[SETFIELD]=
arity[BRANCH]=arity[ISCONST]= 1;
/* instruction with two operands */
arity[APPTERM]=arity[MAKEBLOCK]=arity[CLOSURE]=
arity[ARECONST]=arity[PROJ]=2;
/* instruction with four operands */
arity[MAKESWITCHBLOCK]=4;
/* instruction with arbitrary operands */
arity[CLOSUREREC]=arity[CLOSURECOFIX]=arity[SWITCH]=0;
}
#endif /* THREADED_CODE */
void * coq_stat_alloc (asize_t sz)
{
void * result = malloc (sz);
if (result == NULL) raise_out_of_memory ();
return result;
}
value coq_makeaccu (value i) {
code_t q;
code_t res = coq_stat_alloc(8);
q = res;
*q++ = VALINSTR(MAKEACCU);
*q = (opcode_t)Int_val(i);
return (value)res;
}
value coq_pushpop (value i) {
code_t res;
int n;
n = Int_val(i);
if (n == 0) {
res = coq_stat_alloc(4);
*res = VALINSTR(STOP);
return (value)res;
}
else {
code_t q;
res = coq_stat_alloc(12);
q = res;
*q++ = VALINSTR(POP);
*q++ = (opcode_t)n;
*q = VALINSTR(STOP);
return (value)res;
}
}
value coq_is_accumulate_code(value code){
code_t q;
int res;
q = (code_t)code;
res = Is_instruction(q,ACCUMULATE);
return Val_bool(res);
}
#ifdef ARCH_BIG_ENDIAN
#define Reverse_32(dst,src) { \
char * _p, * _q; \
char _a, _b; \
_p = (char *) (src); \
_q = (char *) (dst); \
_a = _p[0]; \
_b = _p[1]; \
_q[0] = _p[3]; \
_q[1] = _p[2]; \
_q[3] = _a; \
_q[2] = _b; \
}
#define COPY32(dst,src) Reverse_32(dst,src)
#else
#define COPY32(dst,src) (*dst=*src)
#endif /* ARCH_BIG_ENDIAN */
value coq_tcode_of_code (value code, value size) {
code_t p, q, res;
asize_t len = (asize_t) Long_val(size);
res = coq_stat_alloc(len);
q = res;
len /= sizeof(opcode_t);
for (p = (code_t)code; p < (code_t)code + len; /*nothing*/) {
opcode_t instr;
COPY32(&instr,p);
p++;
if (instr < 0 || instr > STOP){
instr = STOP;
};
*q++ = VALINSTR(instr);
if (instr == SWITCH) {
uint32_t i, sizes, const_size, block_size;
COPY32(q,p); p++;
sizes=*q++;
const_size = sizes & 0xFFFFFF;
block_size = sizes >> 24;
sizes = const_size + block_size;
for(i=0; i<sizes; i++) { COPY32(q,p); p++; q++; };
} else if (instr == CLOSUREREC || instr==CLOSURECOFIX) {
uint32_t i, n;
COPY32(q,p); p++; /* ndefs */
n = 3 + 2*(*q); /* ndefs, nvars, start, typlbls,lbls*/
q++;
for(i=1; i<n; i++) { COPY32(q,p); p++; q++; };
} else {
uint32_t i, ar;
ar = arity[instr];
for(i=0; i<ar; i++) { COPY32(q,p); p++; q++; };
}
}
return (value)res;
}
|
