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Subject: [Bug rtl-optimization/46212] [4.6 regression] segfault in reg_nonzero_bits_for_combine
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46212

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-11-01 11:24:12 UTC ---
Created attachment 22217
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22217
gcc46-pr46034.patch

Untested fix.