Ian, thanks a lot for the help. Is there any document about IRA (e.g. how the SIMD registers of a specific architecture is exposed to the allocation process)? or the only option is the read the code? what is the best information source for a beginner on gcc? Thanks again.
---------------------------------------- > From: i...@google.com > To: blue_3...@hotmail.com > CC: gcc@gcc.gnu.org > Subject: Re: vector register allocation > Date: Fri, 25 Jun 2010 14:38:19 -0700 > > BLUE 3TOO writes: > >> Can anybody explain how the register allocation is handled in GCC? >> Is it done together with the general register allocation? or GCC >> has a separate phase to handle them separately? > > There is no separate vector register allocator. All classes of > registers are allocated using the same register allocator. In current > GCC we use IRA by Vladimir Makarov. > > Ian _________________________________________________________________ Learn more ways to connect with your buddies now http://go.microsoft.com/?linkid=9734388
