[Bug rtl-optimization/69592] [6 Regression] Compile-time and memory-use hog in combine

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69592

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Latent issue triggered by r230856, of course rewriting the testcase by hand to
use __builtin_{add,sub}_overflow instead of the code it uses would trigger this
earlier.
Bet we want to limit the recursion depth of the nonzero_bits and
num_sign_bit_copies.