AMDGPU/GlobalISel: Reorganize select switch cases

Author: arsenm

llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp

@@ -768,10 +768,6 @@ bool AMDGPUInstructionSelector::selectG_BUILD_VECTOR(MachineInstr &MI) const {
   return constrainSelectedInstRegOperands(MI, TII, TRI, RBI);
 }
 
-bool AMDGPUInstructionSelector::selectG_PTR_ADD(MachineInstr &I) const {
-  return selectG_ADD_SUB(I);
-}
-
 bool AMDGPUInstructionSelector::selectG_IMPLICIT_DEF(MachineInstr &I) const {
   const MachineOperand &MO = I.getOperand(0);
 
@@ -3530,6 +3526,7 @@ bool AMDGPUInstructionSelector::select(MachineInstr &I) {
     return selectG_AND_OR_XOR(I);
   case TargetOpcode::G_ADD:
   case TargetOpcode::G_SUB:
+  case TargetOpcode::G_PTR_ADD:
     if (selectImpl(I, *CoverageInfo))
       return true;
     return selectG_ADD_SUB(I);
@@ -3544,6 +3541,7 @@ bool AMDGPUInstructionSelector::select(MachineInstr &I) {
   case TargetOpcode::G_INTTOPTR:
   case TargetOpcode::G_BITCAST:
   case TargetOpcode::G_PTRTOINT:
+  case TargetOpcode::G_FREEZE:
     return selectCOPY(I);
   case TargetOpcode::G_CONSTANT:
   case TargetOpcode::G_FCONSTANT:
@@ -3566,14 +3564,8 @@ bool AMDGPUInstructionSelector::select(MachineInstr &I) {
   case TargetOpcode::G_BUILD_VECTOR:
   case TargetOpcode::G_BUILD_VECTOR_TRUNC:
     return selectG_BUILD_VECTOR(I);
-  case TargetOpcode::G_PTR_ADD:
-    if (selectImpl(I, *CoverageInfo))
-      return true;
-    return selectG_PTR_ADD(I);
   case TargetOpcode::G_IMPLICIT_DEF:
     return selectG_IMPLICIT_DEF(I);
-  case TargetOpcode::G_FREEZE:
-    return selectCOPY(I);
   case TargetOpcode::G_INSERT:
     return selectG_INSERT(I);
   case TargetOpcode::G_INTRINSIC:

llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.h

@@ -103,7 +103,6 @@ class AMDGPUInstructionSelector final : public InstructionSelector {
   bool selectG_MERGE_VALUES(MachineInstr &I) const;
   bool selectG_UNMERGE_VALUES(MachineInstr &I) const;
   bool selectG_BUILD_VECTOR(MachineInstr &I) const;
-  bool selectG_PTR_ADD(MachineInstr &I) const;
   bool selectG_IMPLICIT_DEF(MachineInstr &I) const;
   bool selectG_INSERT(MachineInstr &I) const;
   bool selectG_SBFX_UBFX(MachineInstr &I) const;