From 4faa0e19521f700ad10bfea69e141fc46c45f78b Mon Sep 17 00:00:00 2001
From: Bob Wilson <bob.wilson@apple.com>
Date: Sat, 5 Mar 2011 16:54:31 +0000
Subject: [PATCH] Remove unused conditional negate operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127090 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMISelDAGToDAG.cpp | 28 ----------------------------
 lib/Target/ARM/ARMISelLowering.cpp |  1 -
 lib/Target/ARM/ARMISelLowering.h   |  1 -
 lib/Target/ARM/ARMInstrInfo.td     |  2 --
 lib/Target/ARM/ARMInstrVFP.td      | 16 ----------------
 5 files changed, 48 deletions(-)

diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index f0d5a7d7c2e..edf74387b15 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -2450,34 +2450,6 @@ SDNode *ARMDAGToDAGISel::Select(SDNode *N) {
   }
   case ARMISD::CMOV:
     return SelectCMOVOp(N);
-  case ARMISD::CNEG: {
-    EVT VT = N->getValueType(0);
-    SDValue N0 = N->getOperand(0);
-    SDValue N1 = N->getOperand(1);
-    SDValue N2 = N->getOperand(2);
-    SDValue N3 = N->getOperand(3);
-    SDValue InFlag = N->getOperand(4);
-    assert(N2.getOpcode() == ISD::Constant);
-    assert(N3.getOpcode() == ISD::Register);
-
-    SDValue Tmp2 = CurDAG->getTargetConstant(((unsigned)
-                               cast<ConstantSDNode>(N2)->getZExtValue()),
-                               MVT::i32);
-    SDValue Ops[] = { N0, N1, Tmp2, N3, InFlag };
-    unsigned Opc = 0;
-    switch (VT.getSimpleVT().SimpleTy) {
-    default: assert(false && "Illegal conditional move type!");
-      break;
-    case MVT::f32:
-      Opc = ARM::VNEGScc;
-      break;
-    case MVT::f64:
-      Opc = ARM::VNEGDcc;
-      break;
-    }
-    return CurDAG->SelectNodeTo(N, Opc, VT, Ops, 5);
-  }
-
   case ARMISD::VZIP: {
     unsigned Opc = 0;
     EVT VT = N->getValueType(0);
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
index 853716b8f62..ba27caf8b48 100644
--- a/lib/Target/ARM/ARMISelLowering.cpp
+++ b/lib/Target/ARM/ARMISelLowering.cpp
@@ -778,7 +778,6 @@ const char *ARMTargetLowering::getTargetNodeName(unsigned Opcode) const {
   case ARMISD::BCC_i64:       return "ARMISD::BCC_i64";
   case ARMISD::FMSTAT:        return "ARMISD::FMSTAT";
   case ARMISD::CMOV:          return "ARMISD::CMOV";
-  case ARMISD::CNEG:          return "ARMISD::CNEG";
 
   case ARMISD::RBIT:          return "ARMISD::RBIT";
 
diff --git a/lib/Target/ARM/ARMISelLowering.h b/lib/Target/ARM/ARMISelLowering.h
index 10c7f6efce1..4cd74897663 100644
--- a/lib/Target/ARM/ARMISelLowering.h
+++ b/lib/Target/ARM/ARMISelLowering.h
@@ -57,7 +57,6 @@ namespace llvm {
       CMPFPw0,      // ARM VFP compare against zero instruction, sets FPSCR.
       FMSTAT,       // ARM fmstat instruction.
       CMOV,         // ARM conditional move instructions.
-      CNEG,         // ARM conditional negate instructions.
 
       BCC_i64,
 
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index c9b7541a4d4..e0de65b865f 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -93,8 +93,6 @@ def ARMretflag       : SDNode<"ARMISD::RET_FLAG", SDTNone,
 
 def ARMcmov          : SDNode<"ARMISD::CMOV", SDT_ARMCMov,
                               [SDNPInGlue]>;
-def ARMcneg          : SDNode<"ARMISD::CNEG", SDT_ARMCMov,
-                              [SDNPInGlue]>;
 
 def ARMbrcond        : SDNode<"ARMISD::BRCOND", SDT_ARMBrcond,
                               [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
diff --git a/lib/Target/ARM/ARMInstrVFP.td b/lib/Target/ARM/ARMInstrVFP.td
index 29902833f2b..a277ef797ea 100644
--- a/lib/Target/ARM/ARMInstrVFP.td
+++ b/lib/Target/ARM/ARMInstrVFP.td
@@ -983,22 +983,6 @@ def VMOVScc  : ASuI<0b11101, 0b11, 0b0000, 0b01, 0,
                     IIC_fpUNA32, "vmov", ".f32\t$Sd, $Sm",
                     [/*(set SPR:$Sd, (ARMcmov SPR:$Sn, SPR:$Sm, imm:$cc))*/]>,
                  RegConstraint<"$Sn = $Sd">;
-
-def VNEGDcc  : ADuI<0b11101, 0b11, 0b0001, 0b01, 0,
-                    (outs DPR:$Dd), (ins DPR:$Dn, DPR:$Dm),
-                    IIC_fpUNA64, "vneg", ".f64\t$Dd, $Dm",
-                    [/*(set DPR:$Dd, (ARMcneg DPR:$Dn, DPR:$Dm, imm:$cc))*/]>,
-                 RegConstraint<"$Dn = $Dd">;
-
-def VNEGScc  : ASuI<0b11101, 0b11, 0b0001, 0b01, 0,
-                    (outs SPR:$Sd), (ins SPR:$Sn, SPR:$Sm),
-                    IIC_fpUNA32, "vneg", ".f32\t$Sd, $Sm",
-                    [/*(set SPR:$Sd, (ARMcneg SPR:$Sn, SPR:$Sm, imm:$cc))*/]>,
-                 RegConstraint<"$Sn = $Sd"> {
-  // Some single precision VFP instructions may be executed on both NEON and
-  // VFP pipelines on A8.
-  let D = VFPNeonA8Domain;
-}
 } // neverHasSideEffects
 
 //===----------------------------------------------------------------------===//