Re: Frame pointer and regalloc/reload

2013-11-13 Thread Ian Lance Taylor
On Wed, Nov 13, 2013 at 4:29 PM, Hendrik Greving wrote: > In case it is determined that a frame pointer is needed (in reload?), > who is supposed to make sure that the register that will hold the > frame pointer is not allocated for general use? We have a customized > register allocation mechanism

Frame pointer and regalloc/reload

2013-11-13 Thread Hendrik Greving
In case it is determined that a frame pointer is needed (in reload?), who is supposed to make sure that the register that will hold the frame pointer is not allocated for general use? We have a customized register allocation mechanism, but I am trying to figure out / understand the regular/general