[llvm-branch-commits] [llvm] [AMDGPU] Make v2x64 BUILD_VECTOR legal on gfx1251 (PR #204470)

[Stanislav Mekhanoshin via llvm-branch-commits]

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@@ -554,13 +554,16 @@ void AMDGPUDAGToDAGISel::SelectBuildVector(SDNode *N, unsigned RegClassID) {
   RegSeqArgs[0] = CurDAG->getTargetConstant(RegClassID, DL, MVT::i32);
   bool IsRegSeq = true;
   unsigned NOps = N->getNumOperands();
+  unsigned EltSizeInRegs = EltVT.getSizeInBits() / 32;
+  assert(IsGCN || EltSizeInRegs == 1);
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rampitec wrote:

This is actually where I want to split R600 into a separate backend again.

https://github.com/llvm/llvm-project/pull/204470