[NFC][LLVM][IPO] Remove pass initialization from pass constructors (#180584)

Author: jurahul

llvm/lib/Transforms/IPO/AlwaysInliner.cpp

@@ -122,9 +122,7 @@ struct AlwaysInlinerLegacyPass : public ModulePass {
       : AlwaysInlinerLegacyPass(/*InsertLifetime*/ true) {}
 
   AlwaysInlinerLegacyPass(bool InsertLifetime)
-      : ModulePass(ID), InsertLifetime(InsertLifetime) {
-    initializeAlwaysInlinerLegacyPassPass(*PassRegistry::getPassRegistry());
-  }
+      : ModulePass(ID), InsertLifetime(InsertLifetime) {}
 
   /// Main run interface method.
   bool runOnModule(Module &M) override {

llvm/lib/Transforms/IPO/BarrierNoopPass.cpp

@@ -32,9 +32,7 @@ class BarrierNoop : public ModulePass {
 public:
   static char ID; // Pass identification.
 
-  BarrierNoop() : ModulePass(ID) {
-    initializeBarrierNoopPass(*PassRegistry::getPassRegistry());
-  }
+  BarrierNoop() : ModulePass(ID) {}
 
   bool runOnModule(Module &M) override { return false; }
 };

llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp

@@ -71,9 +71,7 @@ class DAE : public ModulePass {
 public:
   static char ID; // Pass identification, replacement for typeid
 
-  DAE() : ModulePass(ID) {
-    initializeDAEPass(*PassRegistry::getPassRegistry());
-  }
+  DAE() : ModulePass(ID) {}
 
   bool runOnModule(Module &M) override {
     if (skipModule(M))

llvm/lib/Transforms/IPO/GlobalDCE.cpp

@@ -36,9 +36,7 @@ namespace {
 class GlobalDCELegacyPass : public ModulePass {
 public:
   static char ID; // Pass identification, replacement for typeid
-  GlobalDCELegacyPass() : ModulePass(ID) {
-    initializeGlobalDCELegacyPassPass(*PassRegistry::getPassRegistry());
-  }
+  GlobalDCELegacyPass() : ModulePass(ID) {}
   bool runOnModule(Module &M) override {
     if (skipModule(M))
       return false;

llvm/lib/Transforms/IPO/IPO.cpp

@@ -17,10 +17,11 @@
 using namespace llvm;
 
 void llvm::initializeIPO(PassRegistry &Registry) {
+  initializeAlwaysInlinerLegacyPassPass(Registry);
+  initializeBarrierNoopPass(Registry);
   initializeDAEPass(Registry);
   initializeDAHPass(Registry);
-  initializeAlwaysInlinerLegacyPassPass(Registry);
+  initializeGlobalDCELegacyPassPass(Registry);
   initializeLoopExtractorLegacyPassPass(Registry);
   initializeSingleLoopExtractorPass(Registry);
-  initializeBarrierNoopPass(Registry);
 }

llvm/lib/Transforms/IPO/LoopExtractor.cpp

@@ -39,9 +39,7 @@ struct LoopExtractorLegacyPass : public ModulePass {
   unsigned NumLoops;
 
   explicit LoopExtractorLegacyPass(unsigned NumLoops = ~0)
-      : ModulePass(ID), NumLoops(NumLoops) {
-    initializeLoopExtractorLegacyPassPass(*PassRegistry::getPassRegistry());
-  }
+      : ModulePass(ID), NumLoops(NumLoops) {}
 
   bool runOnModule(Module &M) override;
 

llvm/tools/llc/CMakeLists.txt

@@ -8,6 +8,7 @@ set(LLVM_LINK_COMPONENTS
   CodeGen
   CodeGenTypes
   Core
+  IPO
   IRPrinter
   IRReader
   MC

llvm/tools/llc/llc.cpp

@@ -389,6 +389,7 @@ int main(int argc, char **argv) {
   initializeUnreachableBlockElimLegacyPassPass(*Registry);
   initializeConstantHoistingLegacyPassPass(*Registry);
   initializeScalarOpts(*Registry);
+  initializeIPO(*Registry);
   initializeVectorization(*Registry);
   initializeScalarizeMaskedMemIntrinLegacyPassPass(*Registry);
   initializeTransformUtils(*Registry);