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bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. (alt) #5143

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bpo-17611. Move unwinding of stack for "pseudo exceptions" from interpreter to compiler. (alt) #5143

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@serhiy-storchaka serhiy-storchaka commented Jan 9, 2018 •
edited by bedevere-bot
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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.python.org/issue17611

pitrou and others added 30 commits December 24, 2017 15:43
@pitrou @serhiy-storchaka
bpo-17611: Move unwinding of stack from interpreter to compiler
2315076
@pitrou @serhiy-storchaka
Cleanup
b160900
@pitrou @serhiy-storchaka
Improve stack size calculation for SETUP_{EXCEPT,FINALLY}
9833631
@pitrou @serhiy-storchaka
Update frozen importlib
9116fb8
@pitrou @serhiy-storchaka
Remove useless code
5b3796e
@pitrou @serhiy-storchaka
Don't predict FOR_ITER as it breaks tracing without computed gotos
77caab0
@pitrou @serhiy-storchaka
Remove dead code and fix tracing tests
9fffb61
@pitrou @serhiy-storchaka
Fix test_dis
5fe5e1b
@pitrou @serhiy-storchaka
Add JUMP_FINALLY to avoid finally block duplication
a93f2e2
@pitrou @serhiy-storchaka
Remove finally block duplication
b007b1c
@pitrou @serhiy-storchaka
More precise computation of code object stack size
0bcf8a7
@pitrou @serhiy-storchaka
JUMP_FINALLY pushes 6 values to be consistent with the effect of an e…
eecf02f 
…xception
@pitrou @serhiy-storchaka
Exact stack size computation by popping stale exception state in RERAISE
64225ce
@pitrou @serhiy-storchaka
Remove the now pointless POP_MANY
04e055e
@pitrou @serhiy-storchaka
Add comment for RERAISE
a3e1b80
@pitrou @serhiy-storchaka
Remove JUMP_FINALLY
a049635
@pitrou @serhiy-storchaka
Remove last block duplication
0741d02
@pitrou @serhiy-storchaka
Get rid of END_ITER
5493616
@pitrou @serhiy-storchaka
Fix comments in frameobject.c
5c68acf
@pitrou @serhiy-storchaka
Add stack size tests
2d41c17
@serhiy-storchaka
Fix test_dis.
afc2235
@serhiy-storchaka
Simplify handling of 'for' loops in frame_setlineno() and fix it for …
00a6681 
…long opargs.
@serhiy-storchaka
Do not duplicate the finally block.
f8cc274
@serhiy-storchaka
Refactor the frame unwinding code.
160ce37
@serhiy-storchaka
Refactoring and optimizations in the compiler.
b3b3250
@serhiy-storchaka
Fix frame_setlineno().
e3f5099
@serhiy-storchaka
Rename PUSH_NO_EXCEPT to BEGIN_FINALLY.
d8dd38d
@serhiy-storchaka
Restore SETUP_WITH and SETUP_ASYNC_WITH.
f1d0bc9
@serhiy-storchaka
Fix stack depth calculation.
84c6400
@serhiy-storchaka
Remove SETUP_EXCEPT.
35bd61b
@serhiy-storchaka
Clarify the use case of POP_FINALLY.
4ca9831
@serhiy-storchaka
bpo-24340: Fix estimation of the code stack size.
e34670a
@serhiy-storchaka
Add new tests for stack effect (ported from python#5076).
42b50d1
@serhiy-storchaka
Add comments.
3d04b53
@serhiy-storchaka
Simplify the algorithm, add comments and asserts.
4b1697d
@serhiy-storchaka
Merge branch 'master' into stack-size
dc25d14
@serhiy-storchaka
Merge branch 'master' into unwind_stack
8a327cb
@serhiy-storchaka
Merge branch 'stack-size' into unwind_stack
4afb870
@serhiy-storchaka
Fix stack effect computation.
4d81d0d
@serhiy-storchaka
Update comments and docs in responce to the review.
edde33a
@serhiy-storchaka
Add more tests.
44c7d39
@serhiy-storchaka
Merge branch 'stack-size' into unwind_stack_new
8dcb17f
@serhiy-storchaka
Add more comments.
0317c9d
@serhiy-storchaka
Define all stack effects in a single place.
7a33146
@serhiy-storchaka
Make stack_effect() static.
68e35bb
@serhiy-storchaka
Add braces for PEP 7.
6056bc7
@serhiy-storchaka
Merge branch 'master' into stack-size
44e1e1e
@serhiy-storchaka
Merge branch 'master' into unwind_stack
04647d6
@serhiy-storchaka
Merge branch 'stack-size' into unwind_stack
6d5c333
@serhiy-storchaka
Add braces for PEP 7.
660a117
@serhiy-storchaka
Merge branch 'master' into unwind_stack
a03d212
@serhiy-storchaka
Merge branch 'master' into unwind_stack
ff0448f
@serhiy-storchaka
Simplify WITH_CLEANUP_START. It is never called after CALL_FINALLY.
bd39e0a
@serhiy-storchaka
Restore SETUP_EXCEPT.
fe25870
@serhiy-storchaka
Remove BEGIN_FINALLY. Change SETUP_FINALLY, SETUP_WITH and SETUP_ASYN…
db8f2a2 
…C_WITH.
@serhiy-storchaka serhiy-storchaka requested a review from 1st1 as a code owner January 9, 2018 21:46
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@serhiy-storchaka @the-knights-who-say-ni @bedevere-bot @pitrou