GlobalISel: Remove redundant pass initialization

Summary:
All the GlobalISel passes are initialized when the target calls
initializeGlobalISel(), so we don't need to call the initializers
from the pass constructors.

Reviewers: qcolombet, t.p.northover, paquette, dsanders, aemerson, aditya_nandakumar

Reviewed By: aemerson

Subscribers: rovka, kristof.beyls, hiraditya, volkan, Petar.Avramovic, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63235

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363642 91177308-0d34-0410-b5e6-96231b3b80d8

Author: tstellar

lib/CodeGen/GlobalISel/IRTranslator.cpp

@@ -106,9 +106,7 @@ static void reportTranslationError(MachineFunction &MF,
     ORE.emit(R);
 }
 
-IRTranslator::IRTranslator() : MachineFunctionPass(ID) {
-  initializeIRTranslatorPass(*PassRegistry::getPassRegistry());
-}
+IRTranslator::IRTranslator() : MachineFunctionPass(ID) { }
 
 #ifndef NDEBUG
 namespace {

lib/CodeGen/GlobalISel/InstructionSelect.cpp

@@ -49,9 +49,7 @@ INITIALIZE_PASS_END(InstructionSelect, DEBUG_TYPE,
                     "Select target instructions out of generic instructions",
                     false, false)
 
-InstructionSelect::InstructionSelect() : MachineFunctionPass(ID) {
-  initializeInstructionSelectPass(*PassRegistry::getPassRegistry());
-}
+InstructionSelect::InstructionSelect() : MachineFunctionPass(ID) { }
 
 void InstructionSelect::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.addRequired<TargetPassConfig>();

lib/CodeGen/GlobalISel/Legalizer.cpp

@@ -50,9 +50,7 @@ INITIALIZE_PASS_END(Legalizer, DEBUG_TYPE,
                     "Legalize the Machine IR a function's Machine IR", false,
                     false)
 
-Legalizer::Legalizer() : MachineFunctionPass(ID) {
-  initializeLegalizerPass(*PassRegistry::getPassRegistry());
-}
+Legalizer::Legalizer() : MachineFunctionPass(ID) { }
 
 void Legalizer::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.addRequired<TargetPassConfig>();

lib/CodeGen/GlobalISel/Localizer.cpp

@@ -29,9 +29,7 @@ INITIALIZE_PASS_END(Localizer, DEBUG_TYPE,
                     "Move/duplicate certain instructions close to their use",
                     false, false)
 
-Localizer::Localizer() : MachineFunctionPass(ID) {
-  initializeLocalizerPass(*PassRegistry::getPassRegistry());
-}
+Localizer::Localizer() : MachineFunctionPass(ID) { }
 
 void Localizer::init(MachineFunction &MF) {
   MRI = &MF.getRegInfo();

lib/CodeGen/GlobalISel/RegBankSelect.cpp

@@ -71,7 +71,6 @@ INITIALIZE_PASS_END(RegBankSelect, DEBUG_TYPE,
 
 RegBankSelect::RegBankSelect(Mode RunningMode)
     : MachineFunctionPass(ID), OptMode(RunningMode) {
-  initializeRegBankSelectPass(*PassRegistry::getPassRegistry());
   if (RegBankSelectMode.getNumOccurrences() != 0) {
     OptMode = RegBankSelectMode;
     if (RegBankSelectMode != RunningMode)