On Sun, Mar 20, 2011 at 9:59 AM, Georg-Johann Lay <a...@gjlay.de> wrote: > The drawback is that this allocates 4 GPRs (AVR is 8-bit machine). However, > one "d"-reg would be sufficient to copy a const into class "l".
What about doing a split of consts before reload? The MIPS and rs6000 targets split up their constant generation before reload to get better code generation; maybe AVR should do the same? It could also allow some CSE to happen reducing the number of registers needed in general. Thanks, Andrew Pinski
