[EMAIL PROTECTED] wrote on 30/10/2006 15:25:09: > Hi all, > > I am working with GCC Cross compiler 4.1.1. I just some information > regarding the following: > > 1. How does the life1 pass gets the register usage information from > the gcse pass? AFAICT life1 pass calculates the live registers from scratch. It stores the information in each basic block.
> 2. From which other passes and how, the information about registers > used can be determined by looking at the RTL dump of the corresponding > pass? You can look at 'registers live:' information in the beginning of each basic-block in the dumps (if it is available). Revital