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Title: gh-104909: Split some more insts into ops by gvanrossum · Pull Request #109943 · python/cpython · GitHub

Open Graph Title: gh-104909: Split some more insts into ops by gvanrossum · Pull Request #109943 · python/cpython

X Title: gh-104909: Split some more insts into ops by gvanrossum · Pull Request #109943 · python/cpython

Description: I started by adding some code that shows the most deserving non-viable opcodes. Also doubling max trace size again. I could do this all day, but the stats show there are diminishing returns. Output from python3 Tools/cases_generator/generate_cases.py -v before splitting the top 5: Read 186 instructions, 46 ops, 207 macros, 12 pseudos, and 14 families from Python/bytecodes.c The following ops are not viable uops: 1,906,418,185 LOAD_ATTR_METHOD_WITH_VALUES (specialization of LOAD_ATTR) 1,408,928,326 LOAD_ATTR_METHOD_NO_DICT (specialization of LOAD_ATTR) 1,359,753,529 LOAD_ATTR_SLOT (specialization of LOAD_ATTR) 1,064,113,118 STORE_ATTR_SLOT (specialization of STORE_ATTR) 981,677,187 STORE_ATTR_INSTANCE_VALUE (specialization of STORE_ATTR) 958,283,266 YIELD_VALUE 777,829,833 CALL (unspecialized) 490,635,610 SEND_GEN (specialization of SEND) 436,706,438 JUMP_FORWARD 430,588,960 EXTENDED_ARG 391,017,977 JUMP_BACKWARD_NO_INTERRUPT 351,940,012 LOAD_ATTR_MODULE (specialization of LOAD_ATTR) 347,159,058 LOAD_ATTR_WITH_HINT (specialization of LOAD_ATTR) 308,391,927 FOR_ITER (unspecialized) 251,204,370 RETURN_GENERATOR 241,313,761 CALL_LIST_APPEND (specialization of CALL) 177,791,632 CALL_PY_WITH_DEFAULTS (specialization of CALL) 175,204,354 CALL_KW 163,262,604 FOR_ITER_GEN (specialization of FOR_ITER) 146,454,299 BINARY_SUBSCR_GETITEM (specialization of BINARY_SUBSCR) 143,423,491 LOAD_ATTR_NONDESCRIPTOR_WITH_VALUES (specialization of LOAD_ATTR) 136,661,968 STORE_FAST_LOAD_FAST 136,511,856 LOAD_ATTR_CLASS (specialization of LOAD_ATTR) 112,730,831 SEND (unspecialized) 92,715,546 MAKE_CELL 83,410,408 CALL_FUNCTION_EX 69,188,245 CALL_ALLOC_AND_ENTER_INIT (specialization of CALL) 56,944,041 LOAD_ATTR_METHOD_LAZY_DICT (specialization of LOAD_ATTR) 52,280,673 LOAD_ATTR_PROPERTY (specialization of LOAD_ATTR) 50,964,787 STORE_ATTR_WITH_HINT (specialization of STORE_ATTR) 22,352,640 LOAD_ATTR_NONDESCRIPTOR_NO_DICT (specialization of LOAD_ATTR) 8,497,626 RERAISE 6,000,000 END_ASYNC_FOR 5,253,976 BEFORE_WITH 2,897,006 RAISE_VARARGS 2,005,368 IMPORT_FROM 1,968,468 IMPORT_NAME 8,160 BEFORE_ASYNC_WITH 5,907 RESUME (unspecialized) 1,540 LOAD_SUPER_ATTR (unspecialized) 801 CLEANUP_THROW ENTER_EXECUTOR LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN (specialization of LOAD_ATTR) I took the counts from here (follow the pystats raw link). Curious what's up with LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN? It was the same on the weekly run a week before; the week before that (Sept 10) the file format was different. @brandtbucher any intuition on this? Issue: gh-104909

Open Graph Description: I started by adding some code that shows the most deserving non-viable opcodes. Also doubling max trace size again. I could do this all day, but the stats show there are diminishing returns. Output...

X Description: I started by adding some code that shows the most deserving non-viable opcodes. Also doubling max trace size again. I could do this all day, but the stats show there are diminishing returns. Output...

Opengraph URL: https://github.com/python/cpython/pull/109943

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gh-104909: Split some more insts into ops https://github.com/python/cpython/pull/109943/files#top
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2ca26bb Print non-viable uops gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/2ca26bb68e4645136168e85d77e38935f30d8f8e
e19517c Sort non-viable opcodes by execution count gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/e19517c7f6cbd7d588fb3aea8654bca07ec7f440
8d1a856 Double _Py_UOP_MAX_TRACE_LENGTH to 128 gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/8d1a856b6ec7f86a82f1f6515e3aaa72a2e24ad3
3796e89 Split LOAD_ATTR_METHOD_WITH_VALUES gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/3796e89b7159e0bddb175e3554c14c61d63c3ae2
6d816ed Split LOAD_ATTR_METHOD_NO_DICT gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/6d816ed491ff8d1234a4d27f4f9005d95c6c3dfb
5ba03d1 Split LOAD_ATTR_SLOT (weird: action may deopt) gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/5ba03d1d8a2daecd5e6d9243e561ac176ccfffc9
5d0fa92 Split STORE_ATTR_SLOT gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/5d0fa92929342e25f2ef81b8079b1ec25c8ee96c
b54eee3 Split STORE_ATTR_INSTANCE_VALUE gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/b54eee3d757832ae5c5a3093e487600f1019ced4
24b4ec9 Merge branch 'main' into load-attr-uops gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/24b4ec973573f024561f306bc7b883a9181c72dd
85fb1e7 Fix LOAD_ATTR_METHOD_WITH_VALUES gvanrossum Sep 27, 2023 https://github.com/python/cpython/pull/109943/commits/85fb1e72177d21e22214793561c1c922cdfa5258
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