Carl Friedrich Bolz-Tereick pushed to branch branch/default at PyPy / pypy
Commits: 08469c94 by Carl Friedrich Bolz-Tereick at 2022-07-02T15:18:14+02:00 be a bit more debugger friendly - - - - - 69be3d8f by Carl Friedrich Bolz-Tereick at 2022-07-02T18:14:29+02:00 use a more subtle condition to check whether aliasing is present when doing malloc removal so far, we simply checked whether an outgoing link of a block had the variable that stores the to-be-malloc-removed value twice. that's not precise enough and leads to broken graphs in complicated situations. The new condition is the following: - we only care about aliasing if there are two distinct creation points. if there is only one, it does not matter that we ship the same value around in different variables. - if there is more than one creation point, it's not good enough to check whether a single variable is duplicated. instead, we check whether there are two variables passed along the link that share the same creation point (the variables might have been copied via same_as or a cast_pointer). - - - - - 2 changed files: - rpython/translator/backendopt/malloc.py - rpython/translator/backendopt/test/test_malloc.py View it on Heptapod: https://foss.heptapod.net/pypy/pypy/-/compare/0cc2aa62d1b01e1f587a66b3711ce5590140f2e3...69be3d8f546b5e7f65f87ea2a96ca7a552ab1168 -- View it on Heptapod: https://foss.heptapod.net/pypy/pypy/-/compare/0cc2aa62d1b01e1f587a66b3711ce5590140f2e3...69be3d8f546b5e7f65f87ea2a96ca7a552ab1168 You're receiving this email because of your account on foss.heptapod.net.
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