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author | Benjamin Peterson <benjamin@python.org> | 2009-11-25 17:46:26 (GMT) |
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committer | Benjamin Peterson <benjamin@python.org> | 2009-11-25 17:46:26 (GMT) |
commit | f6489f941c7ad37751a597fc664c3f9946e8a0c3 (patch) | |
tree | a07ab31526e96cc835fbef7ea06b0a69a67250b8 /Python/compile.c | |
parent | 5554993d375b43114ac6b431d596a0ef2cb58a5e (diff) | |
download | cpython-f6489f941c7ad37751a597fc664c3f9946e8a0c3.zip cpython-f6489f941c7ad37751a597fc664c3f9946e8a0c3.tar.gz cpython-f6489f941c7ad37751a597fc664c3f9946e8a0c3.tar.bz2 |
Merged revisions 75264,75268,75293,75318,75391-75392,75436,75478,75971,76003,76058,76140-76141,76231,76380,76428-76429 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r75264 | andrew.kuchling | 2009-10-05 17:30:22 -0500 (Mon, 05 Oct 2009) | 1 line
Add various items
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r75268 | andrew.kuchling | 2009-10-05 17:45:39 -0500 (Mon, 05 Oct 2009) | 1 line
Remove two notes
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r75293 | kristjan.jonsson | 2009-10-09 09:32:19 -0500 (Fri, 09 Oct 2009) | 2 lines
http://bugs.python.org/issue7029
a non-default timer wasn't actually used by the individual Tests.
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r75318 | benjamin.peterson | 2009-10-10 16:15:58 -0500 (Sat, 10 Oct 2009) | 1 line
remove script which uses long gone module
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r75391 | andrew.kuchling | 2009-10-13 10:49:33 -0500 (Tue, 13 Oct 2009) | 1 line
Link to PEP
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r75392 | andrew.kuchling | 2009-10-13 11:11:49 -0500 (Tue, 13 Oct 2009) | 1 line
Various link, textual, and markup fixes
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r75436 | benjamin.peterson | 2009-10-15 10:39:15 -0500 (Thu, 15 Oct 2009) | 1 line
don't need to mess up sys.path
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r75478 | senthil.kumaran | 2009-10-17 20:58:45 -0500 (Sat, 17 Oct 2009) | 3 lines
Fix a typo.
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r75971 | benjamin.peterson | 2009-10-30 22:56:15 -0500 (Fri, 30 Oct 2009) | 1 line
add some checks for evaluation order with parenthesis #7210
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r76003 | antoine.pitrou | 2009-10-31 19:30:13 -0500 (Sat, 31 Oct 2009) | 6 lines
Hopefully fix the buildbot problems on test_mailbox, by computing
the maildir toc cache refresh date before actually refreshing the cache.
(see #6896)
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r76058 | benjamin.peterson | 2009-11-02 10:14:19 -0600 (Mon, 02 Nov 2009) | 1 line
grant list.index() a more informative error message #7252
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r76140 | nick.coghlan | 2009-11-07 02:13:55 -0600 (Sat, 07 Nov 2009) | 1 line
Add test for runpy.run_module package execution and use something other than logging as the example of a non-executable package
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r76141 | nick.coghlan | 2009-11-07 02:15:01 -0600 (Sat, 07 Nov 2009) | 1 line
Some minor cleanups to private runpy code and docstrings
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r76231 | benjamin.peterson | 2009-11-12 17:42:23 -0600 (Thu, 12 Nov 2009) | 1 line
this main is much more useful
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r76380 | antoine.pitrou | 2009-11-18 14:20:46 -0600 (Wed, 18 Nov 2009) | 3 lines
Mention Giampolo R's new FTP TLS support in the what's new file
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r76428 | benjamin.peterson | 2009-11-19 20:15:50 -0600 (Thu, 19 Nov 2009) | 1 line
turn goto into do while loop
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r76429 | benjamin.peterson | 2009-11-19 20:56:43 -0600 (Thu, 19 Nov 2009) | 2 lines
avoid doing an uneeded import in a function
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Diffstat (limited to 'Python/compile.c')
-rw-r--r-- | Python/compile.c | 67 |
1 files changed, 31 insertions, 36 deletions
diff --git a/Python/compile.c b/Python/compile.c index 2bb9beb..d8fb47b 100644 --- a/Python/compile.c +++ b/Python/compile.c @@ -3802,49 +3802,47 @@ static void assemble_jump_offsets(struct assembler *a, struct compiler *c) { basicblock *b; - int bsize, totsize, extended_arg_count, last_extended_arg_count = 0; + int bsize, totsize, extended_arg_count = 0, last_extended_arg_count; int i; /* Compute the size of each block and fixup jump args. Replace block pointer with position in bytecode. */ -start: - totsize = 0; - for (i = a->a_nblocks - 1; i >= 0; i--) { - b = a->a_postorder[i]; - bsize = blocksize(b); - b->b_offset = totsize; - totsize += bsize; - } - extended_arg_count = 0; - for (b = c->u->u_blocks; b != NULL; b = b->b_list) { - bsize = b->b_offset; - for (i = 0; i < b->b_iused; i++) { - struct instr *instr = &b->b_instr[i]; - /* Relative jumps are computed relative to - the instruction pointer after fetching - the jump instruction. - */ - bsize += instrsize(instr); - if (instr->i_jabs) - instr->i_oparg = instr->i_target->b_offset; - else if (instr->i_jrel) { - int delta = instr->i_target->b_offset - bsize; - instr->i_oparg = delta; + do { + totsize = 0; + for (i = a->a_nblocks - 1; i >= 0; i--) { + b = a->a_postorder[i]; + bsize = blocksize(b); + b->b_offset = totsize; + totsize += bsize; + } + last_extended_arg_count = extended_arg_count; + extended_arg_count = 0; + for (b = c->u->u_blocks; b != NULL; b = b->b_list) { + bsize = b->b_offset; + for (i = 0; i < b->b_iused; i++) { + struct instr *instr = &b->b_instr[i]; + /* Relative jumps are computed relative to + the instruction pointer after fetching + the jump instruction. + */ + bsize += instrsize(instr); + if (instr->i_jabs) + instr->i_oparg = instr->i_target->b_offset; + else if (instr->i_jrel) { + int delta = instr->i_target->b_offset - bsize; + instr->i_oparg = delta; + } + else + continue; + if (instr->i_oparg > 0xffff) + extended_arg_count++; } - else - continue; - if (instr->i_oparg > 0xffff) - extended_arg_count++; } - } /* XXX: This is an awful hack that could hurt performance, but on the bright side it should work until we come up with a better solution. - In the meantime, should the goto be dropped in favor - of a loop? - The issue is that in the first loop blocksize() is called which calls instrsize() which requires i_oparg be set appropriately. There is a bootstrap problem because @@ -3855,10 +3853,7 @@ start: ones in jump instructions. So this should converge fairly quickly. */ - if (last_extended_arg_count != extended_arg_count) { - last_extended_arg_count = extended_arg_count; - goto start; - } + } while (last_extended_arg_count != extended_arg_count); } static PyObject * |