From c41e5935095de27743c99321890e7a9a26d55aab Mon Sep 17 00:00:00 2001 From: Bruno Cardoso Lopes Date: Fri, 22 Jul 2011 00:15:10 +0000 Subject: [PATCH] Remove the 128-bit special handling from SCALAR_TO_VECTOR. This isn't the way to go. Doing this here will prevent several node matches later, and would have to force looking all the way through several VINSERTF128/VEXTRACTF128 chains to optimize simple things. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135730 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86ISelLowering.cpp | 18 ------------------ 1 file changed, 18 deletions(-) diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index c46ccf5ea4c..1aea17524cf 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -983,7 +983,6 @@ X86TargetLowering::X86TargetLowering(X86TargetMachine &TM) setOperationAction(ISD::VECTOR_SHUFFLE, SVT, Custom); setOperationAction(ISD::INSERT_VECTOR_ELT, SVT, Custom); setOperationAction(ISD::EXTRACT_VECTOR_ELT, SVT, Custom); - setOperationAction(ISD::SCALAR_TO_VECTOR, SVT, Custom); setOperationAction(ISD::INSERT_SUBVECTOR, SVT, Custom); } @@ -6339,26 +6338,9 @@ X86TargetLowering::LowerINSERT_VECTOR_ELT(SDValue Op, SelectionDAG &DAG) const { SDValue X86TargetLowering::LowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG) const { - LLVMContext *Context = DAG.getContext(); DebugLoc dl = Op.getDebugLoc(); EVT OpVT = Op.getValueType(); - // If this is a 256-bit vector result, first insert into a 128-bit - // vector and then insert into the 256-bit vector. - if (OpVT.getSizeInBits() > 128) { - // Insert into a 128-bit vector. - EVT VT128 = EVT::getVectorVT(*Context, - OpVT.getVectorElementType(), - OpVT.getVectorNumElements() / 2); - - Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, VT128, Op.getOperand(0)); - - // Insert the 128-bit vector. - return Insert128BitVector(DAG.getNode(ISD::UNDEF, dl, OpVT), Op, - DAG.getConstant(0, MVT::i32), - DAG, dl); - } - if (Op.getValueType() == MVT::v1i64 && Op.getOperand(0).getValueType() == MVT::i64) return DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, MVT::v1i64, Op.getOperand(0));