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        PROP_AUTOINC at -O0.  Don't collect alias info at -O0.
        (init_propagate_block_info): Don't kill memory stores at -O0.
        (mark_set_1, mark_used_regs): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35571 138bc75d-0d04-0410-961f-82ee72b054a4