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| author | Mark Shannon <mark@hotpy.org> | 2020-01-14 10:12:45 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-01-14 10:12:45 (GMT) |
| commit | 9af0e47b1705457bb6b327c197f2ec5737a1d8f6 (patch) | |
| tree | 97378eee78d793d16bd19038d88371d776e720c3 /Misc | |
| parent | 62e3973395fb9fab2eb8f651bcd0fea4e695e1cf (diff) | |
| download | cpython-9af0e47b1705457bb6b327c197f2ec5737a1d8f6.zip cpython-9af0e47b1705457bb6b327c197f2ec5737a1d8f6.tar.gz cpython-9af0e47b1705457bb6b327c197f2ec5737a1d8f6.tar.bz2 | |
bpo-39156: Break up COMPARE_OP into four logically distinct opcodes. (GH-17754)
Break up COMPARE_OP into four logically distinct opcodes:
* COMPARE_OP for rich comparisons
* IS_OP for 'is' and 'is not' tests
* CONTAINS_OP for 'in' and 'is not' tests
* JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
Diffstat (limited to 'Misc')
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2019-12-30-10-53-59.bpo-39156.veT-CB.rst | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2019-12-30-10-53-59.bpo-39156.veT-CB.rst b/Misc/NEWS.d/next/Core and Builtins/2019-12-30-10-53-59.bpo-39156.veT-CB.rst new file mode 100644 index 0000000..f8d1a1a --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2019-12-30-10-53-59.bpo-39156.veT-CB.rst @@ -0,0 +1,9 @@ +Split the COMPARE_OP bytecode instruction into four distinct instructions. + +* COMPARE_OP for rich comparisons +* IS_OP for 'is' and 'is not' tests +* CONTAINS_OP for 'in' and 'is not' tests +* JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements. + +This improves the clarity of the interpreter and should provide a modest +speedup. |