Mailman 3 June 2011 - pypy-dev

[GSoC] CTypes backend for Cython aiming PyPy - Week 2
by Romain Guillebert 07 Jun '11

07 Jun '11

Hi I summarized the second week of my Summer of Code project in this blog post: http://rguillebert.blogspot.com/2011/06/cython-backend-aiming-pypy-week-2.h… Cheers Romain

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Re: [pypy-dev] [pypy-commit] pypy default: (arigo, bivab) implement longlong2float and float2longlong in a way that is more close to the C standard. On ARM/32bit this code was causing a reodering of instructions that filled one of the two words with garbage
by Antonio Cuni 07 Jun '11

07 Jun '11

On 06/06/11 18:07, bivab wrote: > static double pypy__longlong2float(long long x) { > + int i; > + double dd; > char *p = (char*)&x; > - return *((double*)p); > + char *d = (char*)&dd; > + for(i = 0; i < 8; i++) { > + d[i] = p[i]; > + } > + return dd; speaking of portability, what about using sizeof(double)/sizeof(char) instead of hardcoding 8? ciao, Anto

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Compiling PyPy 1.5 fails on Slackware 13.37
by Audrius Kažukauskas 07 Jun '11

07 Jun '11

Hi, I've reported this on #pypy yesterday, but I thought this might be a better place for this kind of information. I've tried to build PyPy 1.5 from source on Slackware 13.37 (32-bit LXC container, while the host and kernel are 64-bit; both systems Slackware) and got an exception[0] in the last stage of the build process (compilation). [0] http://paste.pocoo.org/show/387121/ Here are some bits of information about the system used: gcc 4.5.2, glibc 2.13. If you need anything else, I'll be happy to report it. I also still have all the .c files created by translation process, if any of those are needed, just tell me where to send them. -- Audrius Kažukauskas

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[translation:ERROR] AttributeError': 'FrozenDesc' object has no attribute 'rowkey'
by Timothy Baldridge 03 Jun '11

03 Jun '11

What does error mean, when running the translator against my rpython code? [translation:ERROR] AttributeError': 'FrozenDesc' object has no attribute 'rowkey' Can anyone give me some insight? Thanks. Timothy The code: class Runtime(Obj): def __init__(self): Obj.__init__(self) self.defs = dict() self.vars = [] The Error: [translation:ERROR] Error: [translation:ERROR] Traceback (most recent call last): [translation:ERROR] File "./pypy/translator/goal/translate.py", line 306, in main [translation:ERROR] drv.proceed(goals) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\translator\driver.py", line 809, in proceed [translation:ERROR] return self._execute(goals, task_skip = self._maybe_skip()) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\translator\tool\taskeng ine.py", line 116, in _execute [translation:ERROR] res = self._do(goal, taskcallable, *args, **kwds) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\translator\driver.py", line 286, in _do [translation:ERROR] res = func() [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\translator\driver.py", line 323, in task_annotate [translation:ERROR] s = annotator.build_types(self.entry_point, self.inputtypes) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\annrpython.p y", line 103, in build_types [translation:ERROR] return self.build_graph_types(flowgraph, inputcells, complete_now=complete_n ow) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\annrpython.p y", line 194, in build_graph_types [translation:ERROR] self.complete() [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\annrpython.p y", line 250, in complete [translation:ERROR] self.processblock(graph, block) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\annrpython.p y", line 448, in processblock [translation:ERROR] self.flowin(graph, block) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\annrpython.p y", line 508, in flowin [translation:ERROR] self.consider_op(block.operations[i]) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\annrpython.p y", line 710, in consider_op [translation:ERROR] raise_nicer_exception(op, str(graph)) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\annrpython.p y", line 707, in consider_op [translation:ERROR] resultcell = consider_meth(*argcells) [translation:ERROR] File "<121-codegen c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation \annrpython.py:745>", line 3, in consider_op_simple_call [translation:ERROR] return arg.simple_call(*args) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\unaryop.py", line 175, in simple_call [translation:ERROR] return obj.call(getbookkeeper().build_args("simple_call", args_s)) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\unaryop.py", line 695, in call [translation:ERROR] return bookkeeper.pbc_call(pbc, args) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\bookkeeper.p y", line 640, in pbc_call [translation:ERROR] first.mergecallfamilies(*descs[1:]) [translation:ERROR] File "c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\description. py", line 151, in mergecallfamilies [translation:ERROR] changed, rep, callfamily = call_families.find(self.rowkey()) [translation:ERROR] AttributeError': 'FrozenDesc' object has no attribute 'rowkey' [translation:ERROR] .. v0 = simple_call((type dict)) [translation:ERROR] .. '(runtime.runtime:7)Runtime.__init__' [translation:ERROR] Processing block: [translation:ERROR] block@9 is a <class 'pypy.objspace.flow.flowcontext.SpamBlock'> [translation:ERROR] in (runtime.runtime:7)Runtime.__init__ [translation:ERROR] containing the following operations: [translation:ERROR] v1 = simple_call((instancemethod __init__), self_0) [translation:ERROR] v0 = simple_call((type dict)) [translation:ERROR] v2 = setattr(self_0, ('defs'), v0) [translation:ERROR] v3 = newlist() [translation:ERROR] v4 = setattr(self_0, ('vars'), v3) [translation:ERROR] --end-- [translation] start debugger... > c:\projects\pypy\pypy-1.5-src\pypy-1.5-src\pypy\annotation\description.py(151)mergecallfamilies() -> changed, rep, callfamily = call_families.find(self.rowkey()) (Pdb+) -- “One of the main causes of the fall of the Roman Empire was that–lacking zero–they had no way to indicate successful termination of their C programs.” (Robert Firth)

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Re: [pypy-dev] JIT for scripts
by Laura Creighton 02 Jun '11

02 Jun '11

Great to hear about PHP. I hope you don't mind a question. Were you able to reuse the Python object model for your PHP interpreter, or is the PHP object model too different? Laura

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JIT for scripts
by Alex Şuhan 02 Jun '11

02 Jun '11

Hello. PyPy works great for our PHP JIT interpreter, with nice speedups for most of the processing-intensive (with loops), shootout-ish scripts. However, I feel that short scripts running often could benefit from tracing as well if we make the interpreter „persistent” -- that is, keep all the scripts in memory, create a jump (with a variable target) for dispatching the requested script and a backward jump (to the fore-mentioned dispatch jump) at the end of each script. This article: http://morepypy.blogspot.com/2010/11/improving-memory-behaviour-to-make-sel… refers to the loop_longevity JIT parameter, which suggests it's possible to have alternative executions between different scripts and PyPy will simply pick the appropriate trace as long as it's not too old. Other than the obvious duct taping, are there any caveats to this solution? -- asuhan

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