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bpo-39320: Handle unpacking of *values in compiler (GH-17984)

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* Add three new bytecodes: LIST_TO_TUPLE, LIST_EXTEND, SET_UPDATE. Use them to implement star unpacking expressions.

* Remove four bytecodes BUILD_LIST_UNPACK, BUILD_TUPLE_UNPACK, BUILD_SET_UNPACK and  BUILD_TUPLE_UNPACK_WITH_CALL opcodes as they are now unused.

* Update magic number and dis.rst for new bytecodes.
This commit is contained in:
Mark Shannon 2020-01-23 09:25:17 +00:00 • committed by GitHub
parent f9e07e116c
commit 13bc13960c
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 2349 additions and 2360 deletions
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14
Python/opcode_targets.h generated
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@ -81,7 +81,7 @@ static void *opcode_targets[256] = {
&&TARGET_INPLACE_OR,
&&_unknown_opcode,
&&_unknown_opcode,
&&_unknown_opcode,
&&TARGET_LIST_TO_TUPLE,
&&TARGET_RETURN_VALUE,
&&TARGET_IMPORT_STAR,
&&TARGET_SETUP_ANNOTATIONS,
@ -148,21 +148,21 @@ static void *opcode_targets[256] = {
&&TARGET_SET_ADD,
&&TARGET_MAP_ADD,
&&TARGET_LOAD_CLASSDEREF,
&&TARGET_BUILD_LIST_UNPACK,
&&_unknown_opcode,
&&TARGET_BUILD_MAP_UNPACK,
&&TARGET_BUILD_MAP_UNPACK_WITH_CALL,
&&TARGET_BUILD_TUPLE_UNPACK,
&&TARGET_BUILD_SET_UNPACK,
&&_unknown_opcode,
&&_unknown_opcode,
&&TARGET_SETUP_ASYNC_WITH,
&&TARGET_FORMAT_VALUE,
&&TARGET_BUILD_CONST_KEY_MAP,
&&TARGET_BUILD_STRING,
&&TARGET_BUILD_TUPLE_UNPACK_WITH_CALL,
&&_unknown_opcode,
&&_unknown_opcode,
&&TARGET_LOAD_METHOD,
&&TARGET_CALL_METHOD,
&&_unknown_opcode,
&&_unknown_opcode,
&&TARGET_LIST_EXTEND,
&&TARGET_SET_UPDATE,
&&_unknown_opcode,
&&_unknown_opcode,
&&_unknown_opcode,