[MC/DWARF] Support .debug_frame / .debug_line code alignment factors

[Ulrich Weigand]

Rafael Espíndola <rafael.espindola at gmail.com> wrote on 12.06.2013 14:40:50:

> Calling the field MinInstLength is a bit odd. An architecture where
> instructions are 4 or 5 would have to set this to 1. Something like
> MinInstAlignment would be more correct.

Checked in with this change as r183834.

> Do we have sufficient asm parser support to replace
> ppc64-initial-cfa.ll with a llvm-mc test?

Yes, we do.  I've now replaced this test (and the
other two .ll tests in test/MC/PowerPC) as r183829.

Bye,
Ulrich