sched.c (canon_rtx): Recursively look for equivalences; look for expressions equivalent to MEMs.
* sched.c (canon_rtx): Recursively look for equivalences; look for expressions equivalent to MEMs. (true_dependence): Canonicalize inputs before operating on their values. (anti_dependence, output_dependence): Likewise. * jump.c (follow_jumps): Don't follow an unconditional jump that is not a simple_jump. From-SVN: r10793
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