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| author | Carl Meyer <carl@oddbird.net> | 2023-04-24 22:22:14 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-04-24 22:22:14 (GMT) |
| commit | 0dc8b50d33208e9ca4fc3d959c6798529731f020 (patch) | |
| tree | 822102a5177183fc6ad7075bd74a02a5633edc52 /Python/opcode_metadata.h | |
| parent | 22bed58e531ce780d91f3364c5ace98fad28c2e8 (diff) | |
| download | cpython-0dc8b50d33208e9ca4fc3d959c6798529731f020.zip cpython-0dc8b50d33208e9ca4fc3d959c6798529731f020.tar.gz cpython-0dc8b50d33208e9ca4fc3d959c6798529731f020.tar.bz2 | |
gh-87729: add LOAD_SUPER_ATTR instruction for faster super() (#103497)
This speeds up `super()` (by around 85%, for a simple one-level
`super().meth()` microbenchmark) by avoiding allocation of a new
single-use `super()` object on each use.
Diffstat (limited to 'Python/opcode_metadata.h')
| -rw-r--r-- | Python/opcode_metadata.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Python/opcode_metadata.h b/Python/opcode_metadata.h index 4681ed0..fb370ef 100644 --- a/Python/opcode_metadata.h +++ b/Python/opcode_metadata.h @@ -205,6 +205,8 @@ _PyOpcode_num_popped(int opcode, int oparg, bool jump) { return 1; case MAP_ADD: return 2; + case LOAD_SUPER_ATTR: + return 3; case LOAD_ATTR: return 1; case LOAD_ATTR_INSTANCE_VALUE: @@ -589,6 +591,8 @@ _PyOpcode_num_pushed(int opcode, int oparg, bool jump) { return 0; case MAP_ADD: return 0; + case LOAD_SUPER_ATTR: + return ((oparg & 1) ? 1 : 0) + 1; case LOAD_ATTR: return ((oparg & 1) ? 1 : 0) + 1; case LOAD_ATTR_INSTANCE_VALUE: @@ -879,6 +883,7 @@ const struct opcode_metadata _PyOpcode_opcode_metadata[256] = { [DICT_UPDATE] = { true, INSTR_FMT_IB }, [DICT_MERGE] = { true, INSTR_FMT_IB }, [MAP_ADD] = { true, INSTR_FMT_IB }, + [LOAD_SUPER_ATTR] = { true, INSTR_FMT_IB }, [LOAD_ATTR] = { true, INSTR_FMT_IBC00000000 }, [LOAD_ATTR_INSTANCE_VALUE] = { true, INSTR_FMT_IBC00000000 }, [LOAD_ATTR_MODULE] = { true, INSTR_FMT_IBC00000000 }, |