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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
# Copyright 2013-2015 David Malcolm <dmalcolm@redhat.com>
# Copyright 2013-2015 Red Hat, Inc.
#
# This is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.
import ctypes
import os
import tempfile
import unittest
import gccjit
int_int_func_type = ctypes.CFUNCTYPE(ctypes.c_int, ctypes.c_int)
class JitTests(unittest.TestCase):
def test_square(self):
from examples.square import test_calling_fn
for i in range(5):
self.assertEqual(test_calling_fn(i), i * i)
def test_sum_of_squares(self):
from examples.sum_of_squares import test_calling_fn
for i in range(5):
self.assertEqual(test_calling_fn(i),
sum([j * j for j in range(i)]))
def test_imported_function(self):
"""
void some_fn (const char *name)
{
static char buffer[1024];
snprintf(buffer, sizeof(buffer), "hello %s\n", name);
}
"""
ctxt = gccjit.Context()
void_type = ctxt.get_type(gccjit.TypeKind.VOID)
const_char_p = ctxt.get_type(gccjit.TypeKind.CONST_CHAR_PTR)
char_type = ctxt.get_type(gccjit.TypeKind.CHAR)
char_p = char_type.get_pointer()
int_type = ctxt.get_type(gccjit.TypeKind.INT)
size_type = ctxt.get_type(gccjit.TypeKind.SIZE_T)
buf_type = ctxt.new_array_type(char_type, 1024)
# extern int snprintf(char *str, size_t size, const char *format, ...);
snprintf = ctxt.new_function(gccjit.FunctionKind.IMPORTED,
int_type,
b'snprintf',
[ctxt.new_param(char_p, b's'),
ctxt.new_param(size_type, b'n'),
ctxt.new_param(const_char_p, b'format')],
is_variadic=True)
# void some_fn (const char *name) {
param_name = ctxt.new_param(const_char_p, b'name')
func = ctxt.new_function(gccjit.FunctionKind.EXPORTED,
void_type,
b'some_fn',
[param_name])
# static char buffer[1024];
buffer = func.new_local(buf_type, b'buffer')
# snprintf(buffer, sizeof(buffer), "hello %s\n", name);
args = [ctxt.new_cast(buffer.get_address(), char_p),
ctxt.new_rvalue_from_int(size_type, 1024),
ctxt.new_string_literal(b'hello %s\n'),
param_name]
block = func.new_block(b'entry')
call = ctxt.new_call(snprintf, args)
self.assertEqual(call.get_type(), int_type)
block.add_eval(call)
block.end_with_void_return()
result = ctxt.compile()
py_func_type = ctypes.CFUNCTYPE(None, ctypes.c_char_p)
py_func = py_func_type(result.get_code(b'some_fn'))
py_func(b'blah')
def test_opaque_struct(self):
ctxt = gccjit.Context()
foo = ctxt.new_struct(b'foo')
foo_ptr = foo.get_pointer()
self.assertEqual(str(foo_ptr), 'struct foo *')
foo.set_fields([ctxt.new_field(foo_ptr, b'prev'),
ctxt.new_field(foo_ptr, b'next')])
def test_rvalue_from_ptr(self):
ctxt = gccjit.Context()
type_ = ctxt.get_type(gccjit.TypeKind.CONST_CHAR_PTR)
null_ptr = ctxt.new_rvalue_from_ptr(type_, 0)
self.assertEqual(str(null_ptr), '(const char *)NULL')
type_ = ctxt.get_type(gccjit.TypeKind.VOID_PTR)
nonnull_ptr = ctxt.new_rvalue_from_ptr(type_, id(self))
self.assertEqual(str(nonnull_ptr), '(void *)0x%x' % id(self))
def test_dereference(self):
ctxt = gccjit.Context()
type_ = ctxt.get_type(gccjit.TypeKind.CONST_CHAR_PTR)
nonnull_ptr = ctxt.new_rvalue_from_ptr(type_, id(self))
self.assertEqual(str(nonnull_ptr.dereference()),
'*(const char *)0x%x' % id(self))
def test_call_through_function_ptr(self):
ctxt = gccjit.Context()
void_type = ctxt.get_type(gccjit.TypeKind.VOID)
int_type = ctxt.get_type(gccjit.TypeKind.INT)
fn_ptr_type = ctxt.new_function_ptr_type (void_type,
[int_type,
int_type,
int_type])
self.assertEqual(str(fn_ptr_type),
'void (*) (int, int, int)')
fn_ptr = ctxt.new_param(fn_ptr_type, b"fn")
a = ctxt.new_param(int_type, b"a")
b = ctxt.new_param(int_type, b"b")
c = ctxt.new_param(int_type, b"c")
call = ctxt.new_call_through_ptr(fn_ptr, [a, b, c])
self.assertEqual(str(call),
'fn (a, b, c)')
def test_union(self):
ctxt = gccjit.Context()
int_type = ctxt.get_type(gccjit.TypeKind.INT)
float_type = ctxt.get_type(gccjit.TypeKind.FLOAT)
as_int = ctxt.new_field(int_type, b'as_int')
as_float = ctxt.new_field(float_type, b'as_float')
u = ctxt.new_union(b'u', [as_int, as_float])
self.assertEqual(str(u), 'union u')
def test_bf_aot(self):
from examples import bf
from subprocess import Popen, PIPE
c = bf.Compiler()
c.parse_into_ctxt(b'examples/emit-alphabet.bf')
c.compile_to_file(b'emit-alphabet.exe')
p = Popen(b'./emit-alphabet.exe', stdout=PIPE)
out, err = p.communicate()
self.assertEqual(out, b'ABCDEFGHIJKLMNOPQRSTUVWXYZ')
def test_bf_jit(self):
from examples import bf
c = bf.Compiler()
c.parse_into_ctxt(b'examples/emit-alphabet.bf')
c.run()
def test_dump_reproducer(self):
from examples.sum_of_squares import populate_ctxt
ctxt = gccjit.Context()
populate_ctxt(ctxt)
with tempfile.NamedTemporaryFile(delete=False, suffix=".c") as f:
ctxt.dump_reproducer_to_file(f.name.encode('utf-8'))
try:
with open(f.name) as f:
gensrc = f.read()
self.assertIn('#include <libgccjit.h>', gensrc)
finally:
os.unlink(f.name)
def test_set_logfile(self):
from examples.sum_of_squares import populate_ctxt
ctxt = gccjit.Context()
with tempfile.NamedTemporaryFile(suffix=".txt") as f:
ctxt.set_logfile(f)
populate_ctxt(ctxt)
ctxt.compile()
with open(f.name) as f:
logtxt = f.read()
self.assertIn('JIT: ', logtxt)
self.assertIn('entering: gcc_jit_context_get_type', logtxt)
class ErrorTests(unittest.TestCase):
def test_get_type_error(self):
ctxt = gccjit.Context()
with self.assertRaises(gccjit.Error) as cm:
ctxt.get_type(-1)
self.assertEqual(cm.exception.msg,
(b'gcc_jit_context_get_type:'
b' unrecognized value for enum gcc_jit_types: -1'))
def test_new_function_error(self):
ctxt = gccjit.Context()
int_type = ctxt.get_type(gccjit.TypeKind.INT)
with self.assertRaises(gccjit.Error) as cm:
ctxt.new_function(gccjit.FunctionKind.IMPORTED,
int_type,
b"contains a space",
[])
self.assertEqual(cm.exception.msg,
(b'gcc_jit_context_new_function:'
b' name "contains a space" contains invalid character:'
b" ' '"))
def test_new_block_error(self):
ctxt = gccjit.Context()
int_type = ctxt.get_type(gccjit.TypeKind.INT)
func = ctxt.new_function(gccjit.FunctionKind.IMPORTED,
int_type,
b"foo",
[])
with self.assertRaises(gccjit.Error) as cm:
func.new_block()
self.assertEqual(cm.exception.msg,
(b'gcc_jit_function_new_block:'
b' cannot add block to an imported function'))
if __name__ == '__main__':
unittest.main()
|
