On Sat, Aug 18, 2012 at 10:14 AM, Uros Bizjak <ubiz...@gmail.com> wrote:
> After discussion with Oleg, it looks that it is enough to prevent > wrong registers in the output of the (multi-output) insn pattern. As > far as inputs are concerned, combine already handles limited reload > classes in the right way. The problem with x86 is, that reload tried > to fix output operand of the multi-output ins, where scheduler already > moved load of ax register before this insn. > > Version 2 of the patch now handles only output operands. Also, > handling of empty constraints was fixed. ... but here we fail testcase from PR46843... so we HAVE to check input operands. Uros.
