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
|
#include <ejit/ejit.h>
#include <stdio.h>
#include <assert.h>
#include "do_jit.h"
#define NTARGETS 4
struct ejit_label targets[NTARGETS];
int main(int argc, char *argv[])
{
(void)argv;
bool do_jit = argc > 1;
if (do_jit) {
printf("... skipping for now ...\n");
return 0;
}
struct ejit_operand operands[1] = {
EJIT_OPERAND_GPR(0, EJIT_POINTER)
};
struct ejit_func *f = ejit_create_func(EJIT_TYPE(long), 1, operands);
struct ejit_reloc default_target = ejit_bgei_u(f, EJIT_GPR(0),
NTARGETS);
ejit_lshi(f, EJIT_GPR(0), EJIT_GPR(0),
sizeof(struct ejit_label) == 4 ? 2 : 3);
#warning \
"Label rewriting is not currently working so this will fail the jit test"
ejit_ldxi_label(f, EJIT_GPR(1), EJIT_GPR(0), (int64_t)targets);
ejit_jmpr(f, EJIT_GPR(1));
struct ejit_reloc tails[NTARGETS];
for (size_t i = 0; i < NTARGETS; i++) {
targets[i] = ejit_label(f);
ejit_movi(f, EJIT_GPR(0), i * i);
tails[i] = ejit_jmp(f);
}
struct ejit_label default_label = ejit_label(f);
ejit_patch(f, default_target, default_label);
ejit_movi(f, EJIT_GPR(0), 42);
struct ejit_label dst = ejit_label(f);
for (int i = 0; i < NTARGETS; i++) {
ejit_patch(f, tails[i], dst);
}
ejit_retr(f, EJIT_GPR(0));
ejit_select_compile_func(f, 2, 0, EJIT_USE64(long), do_jit);
for (int i = -2; i < ((int) NTARGETS) + 2; i++) {
if (i < 0) {
assert(erf1(f, EJIT_ARG(i, long)) == 42);
} else if (i < NTARGETS) {
assert(erf1(f, EJIT_ARG(i, long)) == i * i);
} else {
assert(erf1(f, EJIT_ARG(i, long)) == 42);
}
}
ejit_destroy_func(f);
}
|
