[RFA] OSF/1 - "next" over prologueless function call

[Michael Elizabeth Chastain]

drow> But about the OSF/1 specific target hook: no, this should be an
drow> Alpha-specific target hook instead.

I agree with Daniel here.

I have little expertise on 64-bit architectures, but I expect
this would be a common optimization for architectures where
there is a $gp or similar register which needs to be loaded
at the beginning of each function, and a linker can figure out
that $gp has the same value across many different functions.

Michael C