Cleanup unknown line opcode printing and add set_discriminator check

Mark Wielaard mjw at redhat.com
Sun Apr 3 09:22:07 UTC 2011


> It also adds a DW_LNE_set_discriminator
> check. I don't know if there is much to check here, I don't fully
> understand why they are needed in the first place.

Found the background information on discriminators:
http://wiki.dwarfstd.org/index.php?title=Path_Discriminators
So, it is basically about recognizing different basic blocks
that share the same file/line/column info for profilers.

Cheers,

Mark
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