[Bug c/37807] Exponential compile time with MMX builtins.

[suckfish at ihug dot co dot nz]

------- Comment #10 from suckfish at ihug dot co dot nz  2008-10-12 05:27 
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Changelog for patch if accepted [will do full bootstrap & make test]:

2008-10-12  Ralph Loader  <[EMAIL PROTECTED]>

        PR 37807
        * rtlanal.c (numzero_bits1): Return early on vector types, avoiding
        exponential time recursion.
        (num_sign_bit_copies1): Likewise.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37807