[PATCH] D80817: [CodeGen] Fix warning in SelectionDAG getNode for EXTRACT_VECTOR_ELT

[Danilo Carvalho Grael via Phabricator via llvm-commits]

dancgr created this revision.
dancgr added reviewers: sdesmalen, kmclaughlin, efriedma, andwar, rengolin.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.
dancgr added a reviewer: bas.

Fix warning in SelectionDAG getNode for EXTRACT_VECTOR_ELT.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D80817

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
@@ -5380,7 +5380,8 @@
       return getUNDEF(VT);
 
     // EXTRACT_VECTOR_ELT of out-of-bounds element is an UNDEF
-    if (N2C && N2C->getAPIntValue().uge(N1.getValueType().getVectorNumElements()))
+    if (!N1.getValueType().isScalableVector() &&
+      N2C && N2C->getAPIntValue().uge(N1.getValueType().getVectorNumElements()))
       return getUNDEF(VT);
 
     // EXTRACT_VECTOR_ELT of CONCAT_VECTORS is often formed while lowering is


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