[PATCH] combine: Delete EQ* notes when pseudo mode changes (PR60818)

Eric Botcazou ebotcazou@adacore.com
Fri Feb 19 19:34:00 GMT 2016


> It is not a regression (it is in all open release branches already).
> I can postpone it if you think that is wiser?

I do think that the combiner is one of those pieces of code that you ought not 
to touch unless you really need to.

> I misread it as moving the notes from i3 to i2, ugh.  It looks like we
> do have a problem if i2 is a parallel with only one SET; but we already
> had a problem anyway?  The REG_EQ* is put on the wrong insn?

Possibly indeed, we might need to filter them out during the move.

-- 
Eric Botcazou



More information about the Gcc-patches mailing list