>>>>> Matt Lee writes: Date: Thu, 06 Sep 2007 15:02:52 -0400 From: David Edelsohn <[EMAIL PROTECTED]>
Matt> There is no point trying to minimize usage of volatile hard registers, Matt> is there? They are precisely there to be used up as much as needed. Matt> The function is a leaf procedure as well, so there are no other Matt> considerations. Lastly, architectures like PPC do make use of more Matt> registers (without -frename-registers), so there has to be something Matt> in the PPC back-end that allows for the liberal use or in mine that Matt> prevents such. GCC RA mostly is tuned for IA-32 with very few registers. The rs6000 port defines the movmemsi pattern calling expand_block_move() which generates many intermediate pseudos. David