[PATCH] D84937: [SVE][CodeGen] Fix scalable vector issues in DAGTypeLegalizer::GenWidenVectorStores

[David Sherwood via Phabricator via llvm-commits]

david-arm added a comment.

Hi @efriedma, I tried adding a test as you suggested, but hit other errors. For this test:

define void @store_nxv6f32(<vscale x 6 x float>* %out) {

  %ins = insertelement <vscale x 6 x float> undef, float 1.0, i32 0
  %splat = shufflevector <vscale x 6 x float> %ins, <vscale x 6 x float> undef, <vscale x 6 x i32> zeroinitializer
  store <vscale x 6 x float> %splat, <vscale x 6 x float>* %out
  ret void

}

I hit this error:

<<<
WidenVectorResult #0: t8: nxv6f32 = splat_vector ConstantFP:f32<1.000000e+00>

Do not know how to widen the result of this operator!
UNREACHABLE executed at /home/davshe01/upstream/llvm-project/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp:2735!

>>> 

Would like me to try fixing this first in a different patch or part of this patch?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D84937/new/

https://reviews.llvm.org/D84937