Revert "AMDGPU/GlobalISel: Implement select for G_INSERT"

This reverts commit r344310.

The test case was failing on some bots.

llvm-svn: 344317

2 files changed, 0 insertions, 31 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp b/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
index 55ceb8f666f..8eb49d49b2e 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
@@ -178,34 +178,6 @@ bool AMDGPUInstructionSelector::selectG_IMPLICIT_DEF(MachineInstr &I) const {
   return true;
 }
 
-bool AMDGPUInstructionSelector::selectG_INSERT(MachineInstr &I) const {
-  MachineBasicBlock *BB = I.getParent();
-  MachineFunction *MF = BB->getParent();
-  MachineRegisterInfo &MRI = MF->getRegInfo();
-  unsigned SubReg = TRI.getSubRegFromChannel(I.getOperand(3).getImm() / 32);
-  DebugLoc DL = I.getDebugLoc();
-  MachineInstr *Ins = BuildMI(*BB, &I, DL, TII.get(TargetOpcode::INSERT_SUBREG))
-                               .addDef(I.getOperand(0).getReg())
-                               .addReg(I.getOperand(1).getReg())
-                               .addReg(I.getOperand(2).getReg())
-                               .addImm(SubReg);
-
-  for (const MachineOperand &MO : Ins->operands()) {
-    if (!MO.isReg())
-      continue;
-    if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()))
-      continue;
-
-    const TargetRegisterClass *RC =
-            TRI.getConstrainedRegClassForOperand(MO, MRI);
-    if (!RC)
-      continue;
-    RBI.constrainGenericRegister(MO.getReg(), *RC, MRI);
-  }
-  I.eraseFromParent();
-  return true;
-}
-
 bool AMDGPUInstructionSelector::selectG_INTRINSIC(MachineInstr &I,
                                           CodeGenCoverage &CoverageInfo) const {
   unsigned IntrinsicID =  I.getOperand(1).getIntrinsicID();
@@ -668,8 +640,6 @@ bool AMDGPUInstructionSelector::select(MachineInstr &I,
     return selectG_GEP(I);
   case TargetOpcode::G_IMPLICIT_DEF:
     return selectG_IMPLICIT_DEF(I);
-  case TargetOpcode::G_INSERT:
-    return selectG_INSERT(I);
   case TargetOpcode::G_INTRINSIC:
     return selectG_INTRINSIC(I, CoverageInfo);
   case TargetOpcode::G_INTRINSIC_W_SIDE_EFFECTS:
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h b/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h
index f3a835a32a8..449431adc56 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h
+++ b/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h
@@ -67,7 +67,6 @@ private:
   bool selectG_ADD(MachineInstr &I) const;
   bool selectG_GEP(MachineInstr &I) const;
   bool selectG_IMPLICIT_DEF(MachineInstr &I) const;
-  bool selectG_INSERT(MachineInstr &I) const;
   bool selectG_INTRINSIC(MachineInstr &I, CodeGenCoverage &CoverageInfo) const;
   bool selectG_INTRINSIC_W_SIDE_EFFECTS(MachineInstr &I,
                                         CodeGenCoverage &CoverageInfo) const;