Re: GCC extension proposal (loop unswitching)

2008-03-30 Thread Andi Kleen
Nils Pipenbrinck <[EMAIL PROTECTED]> writes: > Most of the stuff I write is performance critical, and I always find > myself in the same situation: I spend counter less hours to unswitch > loops by hand because the built-in loop unswitcher is not always smart > when multiple variables can be unswi

GCC extension proposal (loop unswitching)

2008-03-30 Thread Nils Pipenbrinck
Hi there. I'm a long mailing-list lurker, and I use GCC quite a bit for embedded software development. Most of the stuff I write is performance critical, and I always find myself in the same situation: I spend counter less hours to unswitch loops by hand because the built-in loop unswitcher is