[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



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