[PyPy-issue] [issue545] Rare bug in optimizeopt

[Fijal]

New submission from Fijal <fijall at gmail.com>:

optimize_GUARD_ISNULL can be called in a situation where op.args[0] has a null 
BoxPtr, but getvalue() returns a non-null ConstPtr. Investigating.

To reproduce, compile pypy-c-jit and run twisted tests (trial twisted crashes 
immediately, due to InvalidLoop raised by optimize_GUARD_ISNULL)

----------
effort: ???
messages: 1775
nosy: pypy-issue
priority: bug
release: ???
status: unread
title: Rare bug in optimizeopt

_______________________________________________________
PyPy development tracker <pypy-dev-issue at codespeak.net>
<https://codespeak.net/issue/pypy-dev/issue545>
_______________________________________________________