[llvm-dev] creating Intrinsic DAG Node

[Ryan Taylor via llvm-dev]

Matt,

  This seems to generate llvm.my_intrinsic just fine in the DAG, so no DAG
errors; however, it won't match. For example, if I call the intrinsic from
C, the DAG node looks to be named the same in dotty file but it won't
match... am I missing something?

  I've done it exactly the way it was done above. The DAG looks great but
it won't match. Did I miss something?

Thanks.

On Tue, Feb 2, 2016 at 2:47 PM, Matt Arsenault <arsenm2 at gmail.com> wrote:

>
> On Feb 2, 2016, at 11:27, Ryan Taylor <ryta1203 at gmail.com> wrote:
>
> Matt,
>
>   Is this an example you are talking about:
>
> LoadedVect = DAG.getNode
> <http://llvm.org/docs/doxygen/html/classllvm_1_1SelectionDAG.html#ab02868bea897db34232413f1929ade1d>
> (ISD::INTRINSIC_WO_CHAIN
> <http://llvm.org/docs/doxygen/html/namespacellvm_1_1ISD.html#a22ea9cec080dd5f4f47ba234c2f59110ac771b9cda3b889242d457cc4d9b2159c>,
> dl, MVT::v4f64,
>      DAG.getConstant
> <http://llvm.org/docs/doxygen/html/classllvm_1_1SelectionDAG.html#adf7343dcb7fff67cf516abca4c1d6793>(Intrinsic::ppc_qpx_qvfcfidu,
> dl, MVT::i32),
>      LoadedVect);
>
> Something like this?
>
>
> Yes
>
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