From 761bb1b53df9b775a0c081167dd2bc839e9bfd81 Mon Sep 17 00:00:00 2001 From: Craig Topper Date: Wed, 6 Sep 2017 06:50:03 +0000 Subject: [DAGCombiner] When combining EXTRACT_SUBVECTOR of a BUILD_VECTOR, make sure we don't create a BUILD_VECTOR with an illegal type after type legalization. llvm-svn: 312621 --- llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'llvm/lib/CodeGen/SelectionDAG') diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index ae923e8ac07..c068e1df836 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -15180,8 +15180,9 @@ SDValue DAGCombiner::visitEXTRACT_SUBVECTOR(SDNode* N) { unsigned NumElems = ExtractSize / EltSize; EVT ExtractVT = EVT::getVectorVT(*DAG.getContext(), InVT.getVectorElementType(), NumElems); - if (!LegalOperations || - TLI.isOperationLegal(ISD::BUILD_VECTOR, ExtractVT)) { + if ((!LegalOperations || + TLI.isOperationLegal(ISD::BUILD_VECTOR, ExtractVT)) && + (!LegalTypes || TLI.isTypeLegal(ExtractVT))) { unsigned IdxVal = (Idx->getZExtValue() * NVT.getScalarSizeInBits()) / EltSize; -- cgit v1.2.3