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Re: Alias code
- To: michaelh at ongaonga dot chch dot cri dot nz (Michael P. Hayes)
- Subject: Re: Alias code
- From: Joern Rennecke <amylaar at cygnus dot co dot uk>
- Date: Tue, 30 Jun 1998 19:40:46 +0100 (BST)
- Cc: law at cygnus dot com, Franz dot Sirl-kernel at lauterbach dot com, mark at markmitchell dot com, egcs at cygnus dot com
> While on the alias code subject, EGCS could do with a mechanism so
> that a programmer can hint to the compiler that a memory reference is
> to a different address space, say an internal memory block. The
> backend could then do a better scheduling job by knowing that the
> memory access is likely to be faster than normal and that it won't
> conflict with an external memory access. Any ideas?
We'd need yet another field in the MEM to represent that.
Well, if we have that, then the md file can describe the stuff to the
scheduler by claiming to use different function units depending on
the address space.