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gh-132732: Automatically constant evaluate pure operations (GH-132733)

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This adds a "macro" to the optimizer DSL called "REPLACE_OPCODE_IF_EVALUATES_PURE", which allows automatically constant evaluating a bytecode body if certain inputs have no side effects upon evaluations (such as ints, strings, and floats).


Co-authored-by: Tomas R. <tomas.roun8@gmail.com>
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Ken Jin 2025-06-27 19:37:44 +08:00 • committed by GitHub
parent c45f4f3ebe
commit 695ab61351
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10 changed files with 706 additions and 122 deletions
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Python/bytecodes.c
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@ -850,7 +850,7 @@ dummy_func(
DEOPT_IF(!res);
}
pure op(_BINARY_OP_EXTEND, (descr/4, left, right -- res)) {
op(_BINARY_OP_EXTEND, (descr/4, left, right -- res)) {
PyObject *left_o = PyStackRef_AsPyObjectBorrow(left);
PyObject *right_o = PyStackRef_AsPyObjectBorrow(right);
assert(INLINE_CACHE_ENTRIES_BINARY_OP == 5);