[LLVMdev] ARMRegisterInfo.td

Tim Northover t.p.northover at gmail.com
Thu Jan 22 07:17:03 PST 2015


Hi,

On 21 January 2015 at 23:41, Gang-Ryung Uh <uryung at gmail.com> wrote:
> Could anyone explain how 'AltOrders' will be initialized for the GPRwithAPSR
> record?
>
> In particular, I am curious of the following dag operation 'trunc'? Thanks,
>
>     list<dag> AltOrders = [(add LR, GPRnopc), (trunc GPRnopc, 8)];

I think these operations are documented in
include/llvm/TableGen/SetTheory.h, which seems to be invoked manually
on needed values in the utils/TableGen backends.

Cheers.

Tim.



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