[trunk] patch to remove REG_NO_CONFLICT_BLOCKS

Steven Bosscher stevenb.gcc@gmail.com
Mon Apr 21 22:22:00 GMT 2008


On Mon, Apr 21, 2008 at 11:08 PM, Vladimir Makarov <vmakarov@redhat.com> wrote:
>  Please, don't look at this as an attack but it would be nice to see some
> performance numbers what removing REG_NO_CONFLICT_BLOCKS and byte accurate
> conflict detection (without removing local-alloc) gives.  I guess there
> should be some improvement.  I like general direction to remove
> REG_NO_CONFLICT_BLOCKS and byte accurate  conflict detection.  I think it is
> ok even it gives no visible improvement and makes  compiler a bit slower.

BTW, how does IRA fix this?  It also disables local-alloc, and does
not seem to have anything to replace REG_NO_CONFLICT blocks itself...

Gr.
Steven



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