mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-10-07 15:42:02 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 18

GH-105229: Remove remaining two-codeunit superinstructions (GH-105326)

Browse source 
* Remove LOAD_CONST__LOAD_FAST and LOAD_FAST__LOAD_CONST superinstructions.
This commit is contained in:
Mark Shannon 2023-06-08 12:35:34 +01:00 • committed by GitHub
parent 410c2f13e5
commit e830289c52
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
12 changed files with 523 additions and 626 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Python/specialize.c
View file

@ -273,22 +273,12 @@ _PyCode_Quicken(PyCodeObject *code)
int opcode = 0;
_Py_CODEUNIT *instructions = _PyCode_CODE(code);
for (int i = 0; i < Py_SIZE(code); i++) {
int previous_opcode = opcode;
opcode = _Py_GetBaseOpcode(code, i);
assert(opcode < MIN_INSTRUMENTED_OPCODE);
int caches = _PyOpcode_Caches[opcode];
if (caches) {
instructions[i + 1].cache = adaptive_counter_warmup();
i += caches;
continue;
}
switch (previous_opcode << 8 | opcode) {
case LOAD_CONST << 8 | LOAD_FAST:
instructions[i - 1].op.code = LOAD_CONST__LOAD_FAST;
break;
case LOAD_FAST << 8 | LOAD_CONST:
instructions[i - 1].op.code = LOAD_FAST__LOAD_CONST;
break;
}
}
#endif /* ENABLE_SPECIALIZATION */