Line insn notes in modulo-sched

[Steven Bosscher]

Hi Ayal,

The SMS implementation in GCC, in modulo-sched.c, uses line notes
to find insn locations, see find_line_note.  Why are you using
line notes instead of insn locators?  Line notes are on the list
of Things That Should Not Be, and insn locators replace them.  Is
there a reason for modulo-sched to rely on loop notes, or is this
just an oversight?

Gr.
Steven