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
|
"""Generate uop metadata.
Reads the instruction definitions from bytecodes.c.
Writes the metadata to pycore_uop_metadata.h by default.
"""
import argparse
from analyzer import (
Analysis,
analyze_files,
)
from generators_common import (
DEFAULT_INPUT,
ROOT,
write_header,
cflags,
)
from cwriter import CWriter
from typing import TextIO
DEFAULT_OUTPUT = ROOT / "Include/internal/pycore_uop_metadata.h"
def generate_names_and_flags(analysis: Analysis, out: CWriter) -> None:
out.emit("extern const uint16_t _PyUop_Flags[MAX_UOP_ID+1];\n")
out.emit("extern const uint8_t _PyUop_Replication[MAX_UOP_ID+1];\n")
out.emit("extern const char * const _PyOpcode_uop_name[MAX_UOP_ID+1];\n\n")
out.emit("#ifdef NEED_OPCODE_METADATA\n")
out.emit("const uint16_t _PyUop_Flags[MAX_UOP_ID+1] = {\n")
for uop in analysis.uops.values():
if uop.is_viable() and uop.properties.tier != 1:
out.emit(f"[{uop.name}] = {cflags(uop.properties)},\n")
out.emit("};\n\n")
out.emit("const uint8_t _PyUop_Replication[MAX_UOP_ID+1] = {\n")
for uop in analysis.uops.values():
if uop.replicated:
out.emit(f"[{uop.name}] = {uop.replicated},\n")
out.emit("};\n\n")
out.emit("const char *const _PyOpcode_uop_name[MAX_UOP_ID+1] = {\n")
for uop in sorted(analysis.uops.values(), key=lambda t: t.name):
if uop.is_viable() and uop.properties.tier != 1:
out.emit(f'[{uop.name}] = "{uop.name}",\n')
out.emit("};\n")
out.emit("#endif // NEED_OPCODE_METADATA\n\n")
def generate_uop_metadata(
filenames: list[str], analysis: Analysis, outfile: TextIO
) -> None:
write_header(__file__, filenames, outfile)
out = CWriter(outfile, 0, False)
with out.header_guard("Py_CORE_UOP_METADATA_H"):
out.emit("#include <stdint.h>\n")
out.emit('#include "pycore_uop_ids.h"\n')
generate_names_and_flags(analysis, out)
arg_parser = argparse.ArgumentParser(
description="Generate the header file with uop metadata.",
formatter_class=argparse.ArgumentDefaultsHelpFormatter,
)
arg_parser.add_argument(
"-o", "--output", type=str, help="Generated code", default=DEFAULT_OUTPUT
)
arg_parser.add_argument(
"input", nargs=argparse.REMAINDER, help="Instruction definition file(s)"
)
if __name__ == "__main__":
args = arg_parser.parse_args()
if len(args.input) == 0:
args.input.append(DEFAULT_INPUT)
data = analyze_files(args.input)
with open(args.output, "w") as outfile:
generate_uop_metadata(args.input, data, outfile)
|
