Live range splitting in new allocator

[Michael Meissner]

On Wed, Jan 31, 2001 at 09:33:34AM +0100, Christian Iseli wrote:
> > Well, it would be better than what currently exists... as far as I knowm
> > uninitialized locals tend to have value zero with -O0, which curiously enough,
> > tends to hide many more bugs than any possible other choice...
> 
> Just a thought, but if someone goes to the trouble of implementing some automatic initialization,
> it might be good to have a flag that says something like -finitialize-all=<some value>
> 
> Then you test your code using
>  -finitialize-all=0
>  -finitialize-all=0xdeadbeef
>  -finitialize-all=random

Ummm, -finitialize-stack[=value] would seem to make more sense than
initialize-all, since you would not be initializing the statics or globals (or
possibly the registers).

> Could maybe even be setup at runtime, to avoid the recompile, and depend on some environment
> variable:
>  -finitialize-all=envvar
>  ALL_INIT=1012 mytestprogram
> 
> Cheers,
> 					Christian

-- 
Michael Meissner, Red Hat, Inc.  (GCC group)
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