From 66c357dbc44c3f3fe1b789f1ad581bd55f25dea4 Mon Sep 17 00:00:00 2001
From: David Greene <greened@obbligato.org>
Date: Sat, 5 Feb 2011 00:24:41 +0000
Subject: [PATCH] [AVX] Revert 124910 until clients are ready.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124912 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86ISelLowering.cpp | 122 -----------------------------
 1 file changed, 122 deletions(-)

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 566eb6f7a58..f85f7b1db37 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -60,128 +60,6 @@ STATISTIC(NumTailCalls, "Number of tail calls");
 static SDValue getMOVL(SelectionDAG &DAG, DebugLoc dl, EVT VT, SDValue V1,
                        SDValue V2);
 
-static SDValue Insert128BitVector(SDValue Result,
-                                  SDValue Vec,
-                                  SDValue Idx,
-                                  SelectionDAG &DAG,
-                                  DebugLoc dl);
-static SDValue Extract128BitVector(SDValue Vec,
-                                   SDValue Idx,
-                                   SelectionDAG &DAG,
-                                   DebugLoc dl);
-
-static SDValue ConcatVectors(SDValue Lower, SDValue Upper, SelectionDAG &DAG);
-
-/// Generate a DAG to grab 128-bits from a vector > 128 bits.  This
-/// sets things up to match to an AVX VEXTRACTF128 instruction or a
-/// simple subregister reference.
-static SDValue Extract128BitVector(SDValue Vec,
-                                   SDValue Idx,
-                                   SelectionDAG &DAG,
-                                   DebugLoc dl) {
-  EVT VT = Vec.getValueType();
-  assert(VT.getSizeInBits() == 256 && "Unexpected vector size!");
-
-  EVT ElVT = VT.getVectorElementType();
-
-  int Factor = VT.getSizeInBits() / 128;
-
-  EVT ResultVT = EVT::getVectorVT(*DAG.getContext(),
-                                  ElVT,
-                                  VT.getVectorNumElements() / Factor);
-
-  // Extract from UNDEF is UNDEF.
-  if (Vec.getOpcode() == ISD::UNDEF)
-    return DAG.getNode(ISD::UNDEF, dl, ResultVT);
-
-  if (isa<ConstantSDNode>(Idx)) {
-    unsigned IdxVal = cast<ConstantSDNode>(Idx)->getZExtValue();
-
-    // Extract the relevant 128 bits.  Generate an EXTRACT_SUBVECTOR
-    // we can match to VEXTRACTF128.
-    unsigned ElemsPerChunk = 128 / ElVT.getSizeInBits();
-
-    // This is the index of the first element of the 128-bit chunk
-    // we want.
-    unsigned NormalizedIdxVal = (((IdxVal * ElVT.getSizeInBits()) / 128)
-                                 * ElemsPerChunk);
-
-    SDValue VecIdx = DAG.getConstant(NormalizedIdxVal, MVT::i32);
-
-    SDValue Result = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, ResultVT, Vec,
-                                 VecIdx);
-
-    return Result;
-  }
-
-  return SDValue();
-}
-
-/// Generate a DAG to put 128-bits into a vector > 128 bits.  This
-/// sets things up to match to an AVX VINSERTF128 instruction or a
-/// simple superregister reference.
-static SDValue Insert128BitVector(SDValue Result,
-                                  SDValue Vec,
-                                  SDValue Idx,
-                                  SelectionDAG &DAG,
-                                  DebugLoc dl) {
-  if (isa<ConstantSDNode>(Idx)) {
-    EVT VT = Vec.getValueType();
-    assert(VT.getSizeInBits() == 128 && "Unexpected vector size!");
-
-    EVT ElVT = VT.getVectorElementType();
-
-    unsigned IdxVal = cast<ConstantSDNode>(Idx)->getZExtValue();
-
-    EVT ResultVT = Result.getValueType();
-
-    // Insert the relevant 128 bits.
-    unsigned ElemsPerChunk = 128 / ElVT.getSizeInBits();
-
-    // This is the index of the first element of the 128-bit chunk
-    // we want.
-    unsigned NormalizedIdxVal = (((IdxVal * ElVT.getSizeInBits()) / 128)
-                                 * ElemsPerChunk);
-
-    SDValue VecIdx = DAG.getConstant(NormalizedIdxVal, MVT::i32);
-
-    Result = DAG.getNode(ISD::INSERT_SUBVECTOR, dl, ResultVT, Result, Vec,
-                         VecIdx);
-    return Result;
-  }
-
-  return SDValue();
-}
-
-/// Given two vectors, concat them.
-static SDValue ConcatVectors(SDValue Lower, SDValue Upper, SelectionDAG &DAG) {
-  DebugLoc dl = Lower.getDebugLoc();
-
-  assert(Lower.getValueType() == Upper.getValueType() && "Mismatched vectors!");
-
-  EVT VT = EVT::getVectorVT(*DAG.getContext(),
-                            Lower.getValueType().getVectorElementType(),
-                            Lower.getValueType().getVectorNumElements() * 2);
-
-  // TODO: Generalize to arbitrary vector length (this assumes 256-bit vectors).
-  assert(VT.getSizeInBits() == 256 && "Unsupported vector concat!");
-
-  // Insert the upper subvector.
-  SDValue Vec = Insert128BitVector(DAG.getNode(ISD::UNDEF, dl, VT), Upper,
-                                   DAG.getConstant(
-                                     // This is half the length of the result
-                                     // vector.  Start inserting the upper 128
-                                     // bits here.
-                                     Lower.getValueType().
-                                       getVectorNumElements(),
-                                     MVT::i32),
-                                   DAG, dl);
-
-  // Insert the lower subvector.
-  Vec = Insert128BitVector(Vec, Lower, DAG.getConstant(0, MVT::i32), DAG, dl);
-  return Vec;
-}
-
 static TargetLoweringObjectFile *createTLOF(X86TargetMachine &TM) {
   const X86Subtarget *Subtarget = &TM.getSubtarget<X86Subtarget>();
   bool is64Bit = Subtarget->is64Bit();