[PATCH] D83203: [CodeGen] Fix warnings in SelectionDAG::SplitVector

[David Sherwood via Phabricator via llvm-commits]

david-arm created this revision.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a reviewer: rengolin.
Herald added a project: LLVM.

Fixes warnings in this test:

  sve-sext-zext.ll


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83203

Files:
  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp


Index: llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
===================================================================
--- llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -9614,14 +9614,18 @@
 std::pair<SDValue, SDValue>
 SelectionDAG::SplitVector(const SDValue &N, const SDLoc &DL, const EVT &LoVT,
                           const EVT &HiVT) {
-  assert(LoVT.getVectorNumElements() + HiVT.getVectorNumElements() <=
-         N.getValueType().getVectorNumElements() &&
+  assert(LoVT.isScalableVector() == HiVT.isScalableVector() &&
+         LoVT.isScalableVector() == N.getValueType().isScalableVector() &&
+         "Splitting vector with an invalid mixture of fixed and scalable "
+         "vector types");
+  assert(LoVT.getVectorMinNumElements() + HiVT.getVectorMinNumElements() <=
+             N.getValueType().getVectorMinNumElements() &&
          "More vector elements requested than available!");
   SDValue Lo, Hi;
   Lo =
       getNode(ISD::EXTRACT_SUBVECTOR, DL, LoVT, N, getVectorIdxConstant(0, DL));
   Hi = getNode(ISD::EXTRACT_SUBVECTOR, DL, HiVT, N,
-               getVectorIdxConstant(LoVT.getVectorNumElements(), DL));
+               getVectorIdxConstant(LoVT.getVectorMinNumElements(), DL));
   return std::make_pair(Lo, Hi);
 }
 


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D83203.275623.patch
Type: text/x-patch
Size: 1315 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20200706/47761322/attachment.bin>