Reload producing lots of duplicate insns
Kenneth Zadeck
zadeck@naturalbridge.com
Sun Feb 26 13:23:00 GMT 2006
Steven Bosscher wrote:
> Hi,
>
> While teaching dce.c on the dataflow-branch to delete noop-moves,
> I noticed that most noop moves are produced by reload. It inserts
> duplicate insns for some reloads, postreload turns the duplicate
> reload into a simple reg-reg move (but the lhs and rhs are the same
> register of course), and then dce.c removes these moves because
> they are noop-moves.
>
>
Steven,
Did richard's untested patch not fix this?
Kenny
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