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Re: [RFC 2/3, debug] Add fkeep-vars-live


On Jul 24, 2018, Tom de Vries <tdevries@suse.de> wrote:

> This patch adds fake uses of user variables at the point where they go out of
> scope, to keep user variables inspectable throughout the application.

I suggest also adding such uses before sets, so that variables aren't
regarded as dead and get optimized out in ranges between the end of a
live range and a subsequent assignment.

-- 
Alexandre Oliva, freedom fighter   https://FSFLA.org/blogs/lxo
Be the change, be Free!         FSF Latin America board member
GNU Toolchain Engineer                Free Software Evangelist


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