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[Bug rtl-optimization/81443] [8 regression] build/genrecog.o: virtual memory exhausted: Cannot allocate memory


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81443

--- Comment #23 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Author: ebotcazou
Date: Fri Feb 16 08:20:32 2018
New Revision: 257724

URL: https://gcc.gnu.org/viewcvs?rev=257724&root=gcc&view=rev
Log:
        PR rtl-optimization/81443
        * rtlanal.c (num_sign_bit_copies1) <SUBREG>: Do not propagate results
        from inner REGs to paradoxical SUBREGs.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/rtlanal.c

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