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Title: bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. (alt) by serhiy-storchaka · Pull Request #5143 · python/cpython · GitHub

Open Graph Title: bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. (alt) by serhiy-storchaka · Pull Request #5143 · python/cpython

X Title: bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. (alt) by serhiy-storchaka · Pull Request #5143 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: An alternative to #5006 that restores SETUP_EXCEPT and gets rid of the new opcode BEGIN_FINALLY. SETUP_FINALLY, SETUP_WITH and SETUP_ASYNC_WITH now push NULL on the stack instead. https://bugs.pyt...

X Description: An alternative to #5006 that restores SETUP_EXCEPT and gets rid of the new opcode BEGIN_FINALLY. SETUP_FINALLY, SETUP_WITH and SETUP_ASYNC_WITH now push NULL on the stack instead. https://bugs.pyt...

Opengraph URL: https://github.com/python/cpython/pull/5143

X: @github

direct link

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og:image:altAn alternative to #5006 that restores SETUP_EXCEPT and gets rid of the new opcode BEGIN_FINALLY. SETUP_FINALLY, SETUP_WITH and SETUP_ASYNC_WITH now push NULL on the stack instead. https://bugs.pyt...
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Files changedhttps://github.com/python/cpython/pull/5143/files
bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. (alt)https://github.com/python/cpython/pull/5143#top
serhiy-storchakahttps://github.com/serhiy-storchaka
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Jan 9, 2018https://github.com/python/cpython/pull/5143#issue-287241279
Please reload this pagehttps://github.com/python/cpython/pull/5143
#5006https://github.com/python/cpython/pull/5006
https://bugs.python.org/issue17611https://bugs.python.org/issue17611
Please reload this pagehttps://github.com/python/cpython/pull/5143
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December 24, 2017 15:43https://github.com/python/cpython/pull/5143#commits-pushed-2315076
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bpo-17611: Move unwinding of stack from interpreter to compilerhttps://github.com/python/cpython/pull/5143/commits/23150761bf89948da45af5e55c4255d760e8921c
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Cleanuphttps://github.com/python/cpython/pull/5143/commits/b160900dbca464560e4f888dcd6d73fd7b9ae306
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Improve stack size calculation for SETUP_{EXCEPT,FINALLY}https://github.com/python/cpython/pull/5143/commits/9833631df55d9af05a256f0cead79c4e0d002528
9833631https://github.com/python/cpython/pull/5143/commits/9833631df55d9af05a256f0cead79c4e0d002528
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Update frozen importlibhttps://github.com/python/cpython/pull/5143/commits/9116fb813914603dce132355b30f3511f8e8711c
9116fb8https://github.com/python/cpython/pull/5143/commits/9116fb813914603dce132355b30f3511f8e8711c
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Remove useless codehttps://github.com/python/cpython/pull/5143/commits/5b3796ed4117fdcba042510fcacb307780748326
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Don't predict FOR_ITER as it breaks tracing without computed gotoshttps://github.com/python/cpython/pull/5143/commits/77caab09b6de8ce13f03fa965cdb7f27c5d8f7a8
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Remove dead code and fix tracing testshttps://github.com/python/cpython/pull/5143/commits/9fffb61ab51031cc8a7346cec41f3362d374f45e
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Fix test_dishttps://github.com/python/cpython/pull/5143/commits/5fe5e1b655ac1473a58de2e401102ed3b8be9671
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Add JUMP_FINALLY to avoid finally block duplicationhttps://github.com/python/cpython/pull/5143/commits/a93f2e29af3ddce19858f132c4e47b7a33ae1055
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Remove finally block duplicationhttps://github.com/python/cpython/pull/5143/commits/b007b1c5fb01c71f98401bf916d524f9168d9a8b
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More precise computation of code object stack sizehttps://github.com/python/cpython/pull/5143/commits/0bcf8a70f5c7f1c9405f4208686d3a345937f834
0bcf8a7https://github.com/python/cpython/pull/5143/commits/0bcf8a70f5c7f1c9405f4208686d3a345937f834
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JUMP_FINALLY pushes 6 values to be consistent with the effect of an e…https://github.com/python/cpython/pull/5143/commits/eecf02ff8b0833e39bcf810d6e13d61da12d9321
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Exact stack size computation by popping stale exception state in RERAISEhttps://github.com/python/cpython/pull/5143/commits/64225ce7669a20412a0baea62602771608c260ea
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Remove the now pointless POP_MANYhttps://github.com/python/cpython/pull/5143/commits/04e055e001ebe097fa1b7fa5cde517ba45622828
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Add comment for RERAISEhttps://github.com/python/cpython/pull/5143/commits/a3e1b804c40699983bdc354e889987e8f5591c40
a3e1b80https://github.com/python/cpython/pull/5143/commits/a3e1b804c40699983bdc354e889987e8f5591c40
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Remove JUMP_FINALLYhttps://github.com/python/cpython/pull/5143/commits/a04963599f096bf8b8dfed20e3ebf607bafa6971
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Remove last block duplicationhttps://github.com/python/cpython/pull/5143/commits/0741d023f8a06cfb7f011276c74871bb55e57ccd
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Get rid of END_ITERhttps://github.com/python/cpython/pull/5143/commits/5493616265e8504d1a33128e3d93e71066af3ec3
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Fix comments in frameobject.chttps://github.com/python/cpython/pull/5143/commits/5c68acf8dee9293f4ccec34d30077a963a2df101
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Add stack size testshttps://github.com/python/cpython/pull/5143/commits/2d41c17b4f2b9e693c36d385b8756e0e583d2caa
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Fix test_dis.https://github.com/python/cpython/pull/5143/commits/afc22359f5d996af97650f54a961a846b546dbe0
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Simplify handling of 'for' loops in frame_setlineno() and fix it for …https://github.com/python/cpython/pull/5143/commits/00a6681d6891a7447ee1505bb21f2a30e21ea9d9
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Do not duplicate the finally block.https://github.com/python/cpython/pull/5143/commits/f8cc274ed9df21137e04ac7c57c6050f8eabaca1
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Refactor the frame unwinding code.https://github.com/python/cpython/pull/5143/commits/160ce374473ce5396e76fc2bf5b5536aeb42fdb7
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Refactoring and optimizations in the compiler.https://github.com/python/cpython/pull/5143/commits/b3b3250249002804891025c117720f630dc2888c
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Fix frame_setlineno().https://github.com/python/cpython/pull/5143/commits/e3f5099b488cf90ced93bdd32a802521386cd077
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Rename PUSH_NO_EXCEPT to BEGIN_FINALLY.https://github.com/python/cpython/pull/5143/commits/d8dd38dda374f8e2690d8eb59d831bcb84ed1d24
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Restore SETUP_WITH and SETUP_ASYNC_WITH.https://github.com/python/cpython/pull/5143/commits/f1d0bc987eab24fc1027162ac8a32f4b76c4bbf8
f1d0bc9https://github.com/python/cpython/pull/5143/commits/f1d0bc987eab24fc1027162ac8a32f4b76c4bbf8
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Fix stack depth calculation.https://github.com/python/cpython/pull/5143/commits/84c6400ce814a7f0fbd8dd503cfad3efece12787
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Remove SETUP_EXCEPT.https://github.com/python/cpython/pull/5143/commits/35bd61b213959d1dfecf59e82ac80e32ccd758a0
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Clarify the use case of POP_FINALLY.https://github.com/python/cpython/pull/5143/commits/4ca98310c609c4796c0f2df131ddb1b33b2b71da
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bpo-24340: Fix estimation of the code stack size.https://github.com/python/cpython/pull/5143/commits/e34670aeae1be292b19f5ecb2a53ff752078f5eb
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Add new tests for stack effect (ported fromhttps://github.com/python/cpython/pull/5143/commits/42b50d141c474401b930d0fa46c02b7251aa025a
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Add comments.https://github.com/python/cpython/pull/5143/commits/3d04b53a6c7506a45fea032d656c27c7b0958ad0
3d04b53https://github.com/python/cpython/pull/5143/commits/3d04b53a6c7506a45fea032d656c27c7b0958ad0
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Simplify the algorithm, add comments and asserts.https://github.com/python/cpython/pull/5143/commits/4b1697dad7495a2d3af106dd50d226d25a79d31c
4b1697dhttps://github.com/python/cpython/pull/5143/commits/4b1697dad7495a2d3af106dd50d226d25a79d31c
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Merge branch 'master' into stack-sizehttps://github.com/python/cpython/pull/5143/commits/dc25d14bd8eca16b3ddbc6079700be9307ed3fb4
dc25d14https://github.com/python/cpython/pull/5143/commits/dc25d14bd8eca16b3ddbc6079700be9307ed3fb4
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Merge branch 'master' into unwind_stackhttps://github.com/python/cpython/pull/5143/commits/8a327cb82c55a3933f130de41078447a17d76b20
8a327cbhttps://github.com/python/cpython/pull/5143/commits/8a327cb82c55a3933f130de41078447a17d76b20
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Merge branch 'stack-size' into unwind_stackhttps://github.com/python/cpython/pull/5143/commits/4afb870e31c3932de40799ff17b91ae4447f2a09
4afb870https://github.com/python/cpython/pull/5143/commits/4afb870e31c3932de40799ff17b91ae4447f2a09
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Fix stack effect computation.https://github.com/python/cpython/pull/5143/commits/4d81d0d2a8863708cfeef006b849d44d8e1f15d2
4d81d0dhttps://github.com/python/cpython/pull/5143/commits/4d81d0d2a8863708cfeef006b849d44d8e1f15d2
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Update comments and docs in responce to the review.https://github.com/python/cpython/pull/5143/commits/edde33aabfba9cb198fa72d5901b74e6514c746d
edde33ahttps://github.com/python/cpython/pull/5143/commits/edde33aabfba9cb198fa72d5901b74e6514c746d
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Add more tests.https://github.com/python/cpython/pull/5143/commits/44c7d399b0b7c5371074a4d25f97ea0634d92a97
44c7d39https://github.com/python/cpython/pull/5143/commits/44c7d399b0b7c5371074a4d25f97ea0634d92a97
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Merge branch 'stack-size' into unwind_stack_newhttps://github.com/python/cpython/pull/5143/commits/8dcb17fa185f1c9d53d995e8240be54b6787dc9b
8dcb17fhttps://github.com/python/cpython/pull/5143/commits/8dcb17fa185f1c9d53d995e8240be54b6787dc9b
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Add more comments.https://github.com/python/cpython/pull/5143/commits/0317c9d9a1e58d8d1d3e4e6ab93bb51c2e618929
0317c9dhttps://github.com/python/cpython/pull/5143/commits/0317c9d9a1e58d8d1d3e4e6ab93bb51c2e618929
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Define all stack effects in a single place.https://github.com/python/cpython/pull/5143/commits/7a33146c84d3c27ee4eefaafc959bbf1058621fe
7a33146https://github.com/python/cpython/pull/5143/commits/7a33146c84d3c27ee4eefaafc959bbf1058621fe
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Make stack_effect() static.https://github.com/python/cpython/pull/5143/commits/68e35bbf16ae0979f776d63ed5e9e6c122233ac1
68e35bbhttps://github.com/python/cpython/pull/5143/commits/68e35bbf16ae0979f776d63ed5e9e6c122233ac1
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Add braces for PEP 7.https://github.com/python/cpython/pull/5143/commits/6056bc78cdbc01fb62e6d195f9401f4e9f2494c4
6056bc7https://github.com/python/cpython/pull/5143/commits/6056bc78cdbc01fb62e6d195f9401f4e9f2494c4
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Merge branch 'master' into stack-sizehttps://github.com/python/cpython/pull/5143/commits/44e1e1e027dad29fa89a6f4e89f95e205bd98436
44e1e1ehttps://github.com/python/cpython/pull/5143/commits/44e1e1e027dad29fa89a6f4e89f95e205bd98436
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Merge branch 'master' into unwind_stackhttps://github.com/python/cpython/pull/5143/commits/04647d69d8bb7e4413a73cac7f5993b967bccbf5
04647d6https://github.com/python/cpython/pull/5143/commits/04647d69d8bb7e4413a73cac7f5993b967bccbf5
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Merge branch 'stack-size' into unwind_stackhttps://github.com/python/cpython/pull/5143/commits/6d5c3332aa24e55ea7c2bd4a1aa1bee0d65ebbb7
6d5c333https://github.com/python/cpython/pull/5143/commits/6d5c3332aa24e55ea7c2bd4a1aa1bee0d65ebbb7
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Add braces for PEP 7.https://github.com/python/cpython/pull/5143/commits/660a11788a264e52b76114d21b8601da2c40f08c
660a117https://github.com/python/cpython/pull/5143/commits/660a11788a264e52b76114d21b8601da2c40f08c
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Merge branch 'master' into unwind_stackhttps://github.com/python/cpython/pull/5143/commits/a03d212e22aea61f06541b50effbe6afb734b2a2
a03d212https://github.com/python/cpython/pull/5143/commits/a03d212e22aea61f06541b50effbe6afb734b2a2
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Merge branch 'master' into unwind_stackhttps://github.com/python/cpython/pull/5143/commits/ff0448fdb08aa886fac3a0f2bcc40fd8c9bfb6b5
ff0448fhttps://github.com/python/cpython/pull/5143/commits/ff0448fdb08aa886fac3a0f2bcc40fd8c9bfb6b5
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Simplify WITH_CLEANUP_START. It is never called after CALL_FINALLY.https://github.com/python/cpython/pull/5143/commits/bd39e0a1181e87a267bafb353d1cd595b9f0e79f
bd39e0ahttps://github.com/python/cpython/pull/5143/commits/bd39e0a1181e87a267bafb353d1cd595b9f0e79f
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Restore SETUP_EXCEPT.https://github.com/python/cpython/pull/5143/commits/fe258704bbc366c130948261e07a651c2a35ca3c
fe25870https://github.com/python/cpython/pull/5143/commits/fe258704bbc366c130948261e07a651c2a35ca3c
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Remove BEGIN_FINALLY. Change SETUP_FINALLY, SETUP_WITH and SETUP_ASYN…https://github.com/python/cpython/pull/5143/commits/db8f2a2820e2783eb8c88401bd5395e5dc96f370
db8f2a2https://github.com/python/cpython/pull/5143/commits/db8f2a2820e2783eb8c88401bd5395e5dc96f370
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January 9, 2018 21:46https://github.com/python/cpython/pull/5143#event-1416555255
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January 9, 2018 21:46https://github.com/python/cpython/pull/5143#event-1416555263
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