x86 update
Stephen Weeks
MLton@sourcelight.com
Tue, 17 Oct 2000 12:30:53 -0700 (PDT)
> I don't know if any big conclusions can be drawn, although I'm tempted to
> remark that for all of our complaining about the sparcity of registers on
> the x86, register pressure may not be that big an issue (at least for
> MLton generated code).
The fact that you are seeing code after the very conservative register allocator
runs on the CPS IL may have a lot to do with this. Recall that it allocates a
variable permanently in a stack slot if that variable is ever live across a
nontail call.