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re: generalizing the delay rtx function
- To: "Frank Ch. Eigler" <fche at redhat dot com>
- subject: re: generalizing the delay rtx function
- From: matthew green <mrg at cygnus dot com>
- Date: Wed, 14 Mar 2001 18:40:05 +1100
- Cc: cgen at sources dot redhat dot com
- organisation: Red Hat, Inc.
- Provide a clear definition for the DELAY rtx:
The numeric argument is the number of instruction cycles
after the current one, at which the enclosed set expressions
take effect.
is this possible? eg, (sparc) if i do:
ba foo
ld [%l1 + 4], %o0
vs.
ba foo
tst %o0
the load can take *much* longer than the tst?
other than that, i think this looks fine.
.mrg