[LLVMdev] Support for bundles of MCInst?
eliben at google.com
Thu Nov 29 15:09:53 PST 2012
On Thu, Nov 29, 2012 at 3:00 PM, Mario Guerra <mariog at codeaurora.org> wrote:
> Hello all,
> We're developing an integrated assembler for a VLIW target, and some of the
> optimizing our assembler needs to do must be done on a per-packet basis.
> This requires us to be able to traverse instruction within a packet, and one
> particular optimization requires traversal of previous packets as well.
> We're considering adding support for MCInst bundles in the MC layer to
> accommodate this use case, analogous to what currently exists for
> MachineInstr. Has anyone given thought to this before? Is there already a
> way to create bundles in the MC layer that we've overlooked?
> Any comments or suggestions are appreciated.
Could you elaborate on this proposal in a bit more detail? What will
the semantics of these MCInst bundles be, how will they be generated,
and what special treatment will they get from the assembler?
Thanks in advance,
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