From: Segher Boessenkool <seg...@kernel.crashing.org>
Date: Thu, 3 Sep 2015 20:26:51 -0500
> On Thu, Sep 03, 2015 at 03:33:56PM -0700, David Miller wrote:
>> (insn 18631 1099 1100 14 (set (reg:SI 13423)
>> (subreg:SI (mem/c:QI (plus:SI (reg/f:SI 101 %sfp)
>> (const_int -14269 [0xffffffffffffc843])) [0 %sfp+-14269
>> S1 A8]) 0)) x.c:104 63 {*movsi_insn}
>> (expr_list:REG_DEAD (reg:QI 287)
>> (nil)))
>
>> I wonder why another target's LRA conversion hasn't hit this :-)
>
> Maybe a stupid question but... why are you seeing subregs of mem at all?
> Does sparc not have INSN_SCHEDULING defined?
The paradoxical subreg restriction in general_operand() is only
enforced when reload_completed is true, which will not be the
case while LRA is working.
