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
223
224
225
226
227
228
229
|
import json
import os
import re
import sys
import subprocess
from os import walk
def run_command(command, cwd=None):
p = subprocess.Popen(command, cwd=cwd)
if p.wait() != 0:
print("command `{}` failed...".format(" ".join(command)))
sys.exit(1)
def clone_repository(repo_name, path, repo_url, sub_paths=None):
if os.path.exists(path):
while True:
choice = input("There is already a `{}` folder, do you want to update it? [y/N]".format(path))
if choice == "" or choice.lower() == "n":
print("Skipping repository update.")
return
elif choice.lower() == "y":
print("Updating repository...")
run_command(["git", "pull", "origin"], cwd=path)
return
else:
print("Didn't understand answer...")
print("Cloning {} repository...".format(repo_name))
if sub_paths is None:
run_command(["git", "clone", repo_url, "--depth", "1", path])
else:
run_command(["git", "clone", repo_url, "--filter=tree:0", "--no-checkout", path])
run_command(["git", "sparse-checkout", "init"], cwd=path)
run_command(["git", "sparse-checkout", "set", *sub_paths], cwd=path)
run_command(["git", "checkout"], cwd=path)
def append_intrinsic(array, intrinsic_name, translation):
array.append((intrinsic_name, translation))
def convert_to_string(content):
if content.__class__.__name__ == 'bytes':
return content.decode('utf-8')
return content
def extract_instrinsics_from_llvm(llvm_path, intrinsics):
p = subprocess.Popen(
["llvm-tblgen", "llvm/IR/Intrinsics.td"],
cwd=os.path.join(llvm_path, "llvm/include"),
stdout=subprocess.PIPE)
output, err = p.communicate()
lines = convert_to_string(output).splitlines()
pos = 0
while pos < len(lines):
line = lines[pos]
if not line.startswith("def "):
pos += 1
continue
intrinsic = line.split(" ")[1].strip()
content = line
while pos < len(lines):
line = lines[pos].split(" // ")[0].strip()
content += line
pos += 1
if line == "}":
break
entries = re.findall('string ClangBuiltinName = "(\\w+)";', content)
current_arch = re.findall('string TargetPrefix = "(\\w+)";', content)
if len(entries) == 1 and len(current_arch) == 1:
current_arch = current_arch[0]
intrinsic = intrinsic.split("_")
if len(intrinsic) < 2 or intrinsic[0] != "int":
continue
intrinsic[0] = "llvm"
intrinsic = ".".join(intrinsic)
if current_arch not in intrinsics:
intrinsics[current_arch] = []
append_intrinsic(intrinsics[current_arch], intrinsic, entries[0])
def append_translation(json_data, p, array):
it = json_data["index"][p]
content = it["docs"].split('`')
if len(content) != 5:
return
append_intrinsic(array, content[1], content[3])
def extract_instrinsics_from_llvmint(llvmint, intrinsics):
archs = [
"AMDGPU",
"aarch64",
"arm",
"cuda",
"hexagon",
"mips",
"nvvm",
"ppc",
"ptx",
"x86",
"xcore",
]
json_file = os.path.join(llvmint, "target/doc/llvmint.json")
# We need to regenerate the documentation!
run_command(
["cargo", "rustdoc", "--", "-Zunstable-options", "--output-format", "json"],
cwd=llvmint,
)
with open(json_file, "r", encoding="utf8") as f:
json_data = json.loads(f.read())
for p in json_data["paths"]:
it = json_data["paths"][p]
if it["crate_id"] != 0:
# This is from an external crate.
continue
if it["kind"] != "function":
# We're only looking for functions.
continue
# if len(it["path"]) == 2:
# # This is a "general" intrinsic, not bound to a specific arch.
# append_translation(json_data, p, general)
# continue
if len(it["path"]) != 3 or it["path"][1] not in archs:
continue
arch = it["path"][1]
if arch not in intrinsics:
intrinsics[arch] = []
append_translation(json_data, p, intrinsics[arch])
def fill_intrinsics(intrinsics, from_intrinsics, all_intrinsics):
for arch in from_intrinsics:
if arch not in intrinsics:
intrinsics[arch] = []
for entry in from_intrinsics[arch]:
if entry[0] in all_intrinsics:
if all_intrinsics[entry[0]] == entry[1]:
# This is a "full" duplicate, both the LLVM instruction and the GCC
# translation are the same.
continue
intrinsics[arch].append((entry[0], entry[1], True))
else:
intrinsics[arch].append((entry[0], entry[1], False))
all_intrinsics[entry[0]] = entry[1]
def update_intrinsics(llvm_path, llvmint, llvmint2):
intrinsics_llvm = {}
intrinsics_llvmint = {}
all_intrinsics = {}
extract_instrinsics_from_llvm(llvm_path, intrinsics_llvm)
extract_instrinsics_from_llvmint(llvmint, intrinsics_llvmint)
extract_instrinsics_from_llvmint(llvmint2, intrinsics_llvmint)
intrinsics = {}
# We give priority to translations from LLVM over the ones from llvmint.
fill_intrinsics(intrinsics, intrinsics_llvm, all_intrinsics)
fill_intrinsics(intrinsics, intrinsics_llvmint, all_intrinsics)
archs = [arch for arch in intrinsics]
archs.sort()
output_file = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"../src/intrinsic/archs.rs",
)
print("Updating content of `{}`...".format(output_file))
with open(output_file, "w", encoding="utf8") as out:
out.write("// File generated by `rustc_codegen_gcc/tools/generate_intrinsics.py`\n")
out.write("// DO NOT EDIT IT!\n")
out.write("match name {\n")
for arch in archs:
if len(intrinsics[arch]) == 0:
continue
intrinsics[arch].sort(key=lambda x: (x[0], x[2]))
out.write(' // {}\n'.format(arch))
for entry in intrinsics[arch]:
if entry[2] == True: # if it is a duplicate
out.write(' // [DUPLICATE]: "{}" => "{}",\n'.format(entry[0], entry[1]))
elif "_round_mask" in entry[1]:
out.write(' // [INVALID CONVERSION]: "{}" => "{}",\n'.format(entry[0], entry[1]))
else:
out.write(' "{}" => "{}",\n'.format(entry[0], entry[1]))
out.write(' _ => unimplemented!("***** unsupported LLVM intrinsic {}", name),\n')
out.write("}\n")
print("Done!")
def main():
llvm_path = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"llvm-project",
)
llvmint_path = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"llvmint",
)
llvmint2_path = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"llvmint-2",
)
# First, we clone the LLVM repository if it's not already here.
clone_repository(
"llvm-project",
llvm_path,
"https://github.com/llvm/llvm-project",
sub_paths=["llvm/include/llvm/IR", "llvm/include/llvm/CodeGen/"],
)
clone_repository(
"llvmint",
llvmint_path,
"https://github.com/GuillaumeGomez/llvmint",
)
clone_repository(
"llvmint2",
llvmint2_path,
"https://github.com/antoyo/llvmint",
)
update_intrinsics(llvm_path, llvmint_path, llvmint2_path)
if __name__ == "__main__":
sys.exit(main())
|
