LOG_LINKS in the gcc

[Zack Weinberg]

On Fri, Oct 06, 2000 at 12:16:33PM +1300, Michael Hayes wrote:
> 
> I have been intending to write some generic def-use and use-def
> routines for use by the loop optimizer.  The approach I had envisaged
> was to build partial def-use and use-def chains for each basic block
> (or perhaps for each extended basic block) and then to stitch them
> together using life analysis information and a search of the CFG (or
> possibly the reaching definition information computed in gcse.c).

combine could also benefit greatly from real use-def/def-use
information.

zw