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Re: [PATCH, LRA] Remove REG_DEAD and REG_UNUSED notes.


On Tue, Sep 24, 2013 at 5:03 PM, Eric Botcazou wrote:
>> This patch removes REG_DEAD and REG_UNUSED notes in update_inc_notes,
>> as it is what the function is supposed to do (see the comments) and as
>> keeping these notes produce some failures, at least on ARM.
>
> The description is too terse.  In the RTL middle-end, you shouldn't have to
> manually deal with the REG_DEAD and REG_UNUSED notes (unlike REG_EQUAL and
> REG_EQUIV notes), as the DF framework is supposed to do it for you.


Unfortunately LRA uses its own DF framework.

Ciao!
Steven


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