From 44e437e6cc278a6797eff72faf6ce2be5ceb6e33 Mon Sep 17 00:00:00 2001 From: Craig Topper Date: Thu, 14 Sep 2017 22:47:59 +0000 Subject: [PATCH] [X86] Remove an unnecessary SmallVector from LowerBUILD_VECTOR. I think this may have existed to convert from SDUse to SDValue, but it doesn't look like its needed now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313311 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86ISelLowering.cpp | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 3089204ba8d..33bc20b3148 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -7814,15 +7814,13 @@ X86TargetLowering::LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const { // For AVX-length vectors, build the individual 128-bit pieces and use // shuffles to put them in place. if (VT.is256BitVector() || VT.is512BitVector()) { - SmallVector Ops(Op->op_begin(), Op->op_begin() + NumElems); - EVT HVT = EVT::getVectorVT(*DAG.getContext(), ExtVT, NumElems/2); // Build both the lower and upper subvector. SDValue Lower = - DAG.getBuildVector(HVT, dl, makeArrayRef(&Ops[0], NumElems / 2)); + DAG.getBuildVector(HVT, dl, Op->ops().slice(0, NumElems / 2)); SDValue Upper = DAG.getBuildVector( - HVT, dl, makeArrayRef(&Ops[NumElems / 2], NumElems / 2)); + HVT, dl, Op->ops().slice(NumElems / 2, NumElems /2)); // Recreate the wider vector with the lower and upper part. if (VT.is256BitVector()) -- 2.50.1