[EMAIL PROTECTED] wrote:
I was wondering if anyone knew how I could modify gcc to not use static general purpose registers on an IA-64 machine?
Besides the -ffixed-reg option Vlad mentioned, there is also a documented IA-64 specific option for this. See the docs. No reason why this option needs to be IA-64 specific though; it was just implemented that way for convenience before the IA-64 port was contributed to the FSF.
You may have trouble with 64-bit constants if you disable r2/r3. There are only four regs that work with the addl instruction, and you have just disallowed all of them. You might need other changes to make this work.
-- Jim Wilson, GNU Tools Support, http://www.specifix.com
