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
