AIX regression due to DFA scheduler merge
Sun Jun 2 20:12:00 GMT 2002
In message <200206020236.WAA23556@makai.watson.ibm.com>, David Edelsohn
> With the libcall patch, insn 2951 (plus:SI) is scheduled before insn 1711
> and insn 1715 on which it has anti-dependence. Without the libcall patch,
> it is scheduled after those instructions where reg:SI 791 is used.
> I would really appreciate some help debugging why the instruction
> is being moved across the dependency. I will be happy to send
> pre-processed input and any RTL dumps people want to browse.
I would recommend using -fsched-verbose to dump the dependencies to verify
that they actually are correct.
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