[llvm] r254427 - AMDGPU/SI: Remove REGISTER_STORE/REGISTER_LOAD code which is now dead

[Tom Stellard via llvm-commits]

Author: tstellar
Date: Tue Dec  1 11:45:22 2015
New Revision: 254427

URL: http://llvm.org/viewvc/llvm-project?rev=254427&view=rev
Log:
AMDGPU/SI: Remove REGISTER_STORE/REGISTER_LOAD code which is now dead

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D15050

Modified:
    llvm/trunk/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
    llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp
    llvm/trunk/lib/Target/AMDGPU/SIInstructions.td

Modified: llvm/trunk/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp?rev=254427&r1=254426&r2=254427&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp Tue Dec  1 11:45:22 2015
@@ -458,41 +458,6 @@ SDNode *AMDGPUDAGToDAGISel::Select(SDNod
     N = glueCopyToM0(N);
     break;
   }
-  case AMDGPUISD::REGISTER_LOAD: {
-    if (Subtarget->getGeneration() <= AMDGPUSubtarget::NORTHERN_ISLANDS)
-      break;
-    SDValue Addr, Offset;
-
-    SDLoc DL(N);
-    SelectADDRIndirect(N->getOperand(1), Addr, Offset);
-    const SDValue Ops[] = {
-      Addr,
-      Offset,
-      CurDAG->getTargetConstant(0, DL, MVT::i32),
-      N->getOperand(0),
-    };
-    return CurDAG->getMachineNode(AMDGPU::SI_RegisterLoad, DL,
-                                  CurDAG->getVTList(MVT::i32, MVT::i64,
-                                                    MVT::Other),
-                                  Ops);
-  }
-  case AMDGPUISD::REGISTER_STORE: {
-    if (Subtarget->getGeneration() <= AMDGPUSubtarget::NORTHERN_ISLANDS)
-      break;
-    SDValue Addr, Offset;
-    SelectADDRIndirect(N->getOperand(2), Addr, Offset);
-    SDLoc DL(N);
-    const SDValue Ops[] = {
-      N->getOperand(1),
-      Addr,
-      Offset,
-      CurDAG->getTargetConstant(0, DL, MVT::i32),
-      N->getOperand(0),
-    };
-    return CurDAG->getMachineNode(AMDGPU::SI_RegisterStorePseudo, DL,
-                                        CurDAG->getVTList(MVT::Other),
-                                        Ops);
-  }
 
   case AMDGPUISD::BFE_I32:
   case AMDGPUISD::BFE_U32: {

Modified: llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp?rev=254427&r1=254426&r2=254427&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp Tue Dec  1 11:45:22 2015
@@ -848,27 +848,11 @@ SDValue SITargetLowering::LowerFormalArg
 MachineBasicBlock * SITargetLowering::EmitInstrWithCustomInserter(
     MachineInstr * MI, MachineBasicBlock * BB) const {
 
-  MachineBasicBlock::iterator I = *MI;
-  const SIInstrInfo *TII =
-      static_cast<const SIInstrInfo *>(Subtarget->getInstrInfo());
-
   switch (MI->getOpcode()) {
   default:
     return AMDGPUTargetLowering::EmitInstrWithCustomInserter(MI, BB);
   case AMDGPU::BRANCH:
     return BB;
-  case AMDGPU::SI_RegisterStorePseudo: {
-    MachineRegisterInfo &MRI = BB->getParent()->getRegInfo();
-    unsigned Reg = MRI.createVirtualRegister(&AMDGPU::SReg_64RegClass);
-    MachineInstrBuilder MIB =
-        BuildMI(*BB, I, MI->getDebugLoc(), TII->get(AMDGPU::SI_RegisterStore),
-                Reg);
-    for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i)
-      MIB.addOperand(MI->getOperand(i));
-
-    MI->eraseFromParent();
-    break;
-  }
   }
   return BB;
 }

Modified: llvm/trunk/lib/Target/AMDGPU/SIInstructions.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/SIInstructions.td?rev=254427&r1=254426&r2=254427&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/SIInstructions.td (original)
+++ llvm/trunk/lib/Target/AMDGPU/SIInstructions.td Tue Dec  1 11:45:22 2015
@@ -1942,36 +1942,6 @@ def SI_KILL : InstSI <
 
 let Uses = [EXEC], Defs = [EXEC,VCC,M0] in {
 
-//defm SI_ : RegisterLoadStore <VGPR_32, FRAMEri, ADDRIndirect>;
-
-let UseNamedOperandTable = 1 in {
-
-def SI_RegisterLoad : InstSI <
-  (outs VGPR_32:$dst, SReg_64:$temp),
-  (ins FRAMEri32:$addr, i32imm:$chan),
-  "", []
-> {
-  let isRegisterLoad = 1;
-  let mayLoad = 1;
-}
-
-class SIRegStore<dag outs> : InstSI <
-  outs,
-  (ins VGPR_32:$val, FRAMEri32:$addr, i32imm:$chan),
-  "", []
-> {
-  let isRegisterStore = 1;
-  let mayStore = 1;
-}
-
-let usesCustomInserter = 1 in {
-def SI_RegisterStorePseudo : SIRegStore<(outs)>;
-} // End usesCustomInserter = 1
-def SI_RegisterStore : SIRegStore<(outs SReg_64:$temp)>;
-
-
-} // End UseNamedOperandTable = 1
-
 class SI_INDIRECT_SRC<RegisterClass rc> : InstSI <
   (outs VGPR_32:$dst, SReg_64:$temp),
   (ins rc:$src, VSrc_32:$idx, i32imm:$off),