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gh-104584: Emit macro expansions to opcode_metadata.h (#106163)

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This produces longer traces (superblocks?).

Also improved debug output (uop names are now printed instead of numeric opcodes). This would be simpler if the numeric opcode values were generated by generate_cases.py, but that's another project.

Refactored some code in generate_cases.py so the essential algorithm for cache effects is only run once. (Deciding which effects are used and what the total cache size is, regardless of what's used.)
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Guido van Rossum 2023-06-28 11:28:07 -07:00 • committed by GitHub
parent c283a0cff5
commit 11731434df
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4 changed files with 153 additions and 78 deletions
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32
Python/opcode_metadata.h
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@ -913,6 +913,9 @@ struct opcode_macro_expansion {
#ifndef NEED_OPCODE_METADATA
extern const struct opcode_metadata _PyOpcode_opcode_metadata[512];
extern const struct opcode_macro_expansion _PyOpcode_macro_expansion[256];
#ifdef Py_DEBUG
extern const char * const _PyOpcode_uop_name[512];
#endif
#else
const struct opcode_metadata _PyOpcode_opcode_metadata[512] = {
[NOP] = { true, INSTR_FMT_IX, 0 },
@ -1131,10 +1134,18 @@ const struct opcode_macro_expansion _PyOpcode_macro_expansion[256] = {
[STORE_FAST] = { .nuops = 1, .uops = { { STORE_FAST, 0, 0 } } },
[POP_TOP] = { .nuops = 1, .uops = { { POP_TOP, 0, 0 } } },
[PUSH_NULL] = { .nuops = 1, .uops = { { PUSH_NULL, 0, 0 } } },
[END_FOR] = { .nuops = 2, .uops = { { POP_TOP, 0, 0 }, { POP_TOP, 0, 0 } } },
[END_SEND] = { .nuops = 1, .uops = { { END_SEND, 0, 0 } } },
[UNARY_NEGATIVE] = { .nuops = 1, .uops = { { UNARY_NEGATIVE, 0, 0 } } },
[UNARY_NOT] = { .nuops = 1, .uops = { { UNARY_NOT, 0, 0 } } },
[UNARY_INVERT] = { .nuops = 1, .uops = { { UNARY_INVERT, 0, 0 } } },
[BINARY_OP_MULTIPLY_INT] = { .nuops = 2, .uops = { { _GUARD_BOTH_INT, 0, 0 }, { _BINARY_OP_MULTIPLY_INT, 0, 0 } } },
[BINARY_OP_ADD_INT] = { .nuops = 2, .uops = { { _GUARD_BOTH_INT, 0, 0 }, { _BINARY_OP_ADD_INT, 0, 0 } } },
[BINARY_OP_SUBTRACT_INT] = { .nuops = 2, .uops = { { _GUARD_BOTH_INT, 0, 0 }, { _BINARY_OP_SUBTRACT_INT, 0, 0 } } },
[BINARY_OP_MULTIPLY_FLOAT] = { .nuops = 2, .uops = { { _GUARD_BOTH_FLOAT, 0, 0 }, { _BINARY_OP_MULTIPLY_FLOAT, 0, 0 } } },
[BINARY_OP_ADD_FLOAT] = { .nuops = 2, .uops = { { _GUARD_BOTH_FLOAT, 0, 0 }, { _BINARY_OP_ADD_FLOAT, 0, 0 } } },
[BINARY_OP_SUBTRACT_FLOAT] = { .nuops = 2, .uops = { { _GUARD_BOTH_FLOAT, 0, 0 }, { _BINARY_OP_SUBTRACT_FLOAT, 0, 0 } } },
[BINARY_OP_ADD_UNICODE] = { .nuops = 2, .uops = { { _GUARD_BOTH_UNICODE, 0, 0 }, { _BINARY_OP_ADD_UNICODE, 0, 0 } } },
[BINARY_SLICE] = { .nuops = 1, .uops = { { BINARY_SLICE, 0, 0 } } },
[STORE_SLICE] = { .nuops = 1, .uops = { { STORE_SLICE, 0, 0 } } },
[BINARY_SUBSCR_LIST_INT] = { .nuops = 1, .uops = { { BINARY_SUBSCR_LIST_INT, 0, 0 } } },
@ -1162,6 +1173,9 @@ const struct opcode_macro_expansion _PyOpcode_macro_expansion[256] = {
[DELETE_ATTR] = { .nuops = 1, .uops = { { DELETE_ATTR, 0, 0 } } },
[STORE_GLOBAL] = { .nuops = 1, .uops = { { STORE_GLOBAL, 0, 0 } } },
[DELETE_GLOBAL] = { .nuops = 1, .uops = { { DELETE_GLOBAL, 0, 0 } } },
[LOAD_LOCALS] = { .nuops = 1, .uops = { { _LOAD_LOCALS, 0, 0 } } },
[LOAD_NAME] = { .nuops = 2, .uops = { { _LOAD_LOCALS, 0, 0 }, { _LOAD_FROM_DICT_OR_GLOBALS, 0, 0 } } },
[LOAD_FROM_DICT_OR_GLOBALS] = { .nuops = 1, .uops = { { _LOAD_FROM_DICT_OR_GLOBALS, 0, 0 } } },
[DELETE_DEREF] = { .nuops = 1, .uops = { { DELETE_DEREF, 0, 0 } } },
[LOAD_FROM_DICT_OR_DEREF] = { .nuops = 1, .uops = { { LOAD_FROM_DICT_OR_DEREF, 0, 0 } } },
[LOAD_DEREF] = { .nuops = 1, .uops = { { LOAD_DEREF, 0, 0 } } },
@ -1207,4 +1221,22 @@ const struct opcode_macro_expansion _PyOpcode_macro_expansion[256] = {
[COPY] = { .nuops = 1, .uops = { { COPY, 0, 0 } } },
[SWAP] = { .nuops = 1, .uops = { { SWAP, 0, 0 } } },
};
#ifdef Py_DEBUG
const char * const _PyOpcode_uop_name[512] = {
[300] = "EXIT_TRACE",
[301] = "SET_IP",
[302] = "_GUARD_BOTH_INT",
[303] = "_BINARY_OP_MULTIPLY_INT",
[304] = "_BINARY_OP_ADD_INT",
[305] = "_BINARY_OP_SUBTRACT_INT",
[306] = "_GUARD_BOTH_FLOAT",
[307] = "_BINARY_OP_MULTIPLY_FLOAT",
[308] = "_BINARY_OP_ADD_FLOAT",
[309] = "_BINARY_OP_SUBTRACT_FLOAT",
[310] = "_GUARD_BOTH_UNICODE",
[311] = "_BINARY_OP_ADD_UNICODE",
[312] = "_LOAD_LOCALS",
[313] = "_LOAD_FROM_DICT_OR_GLOBALS",
};
#endif
#endif