[NFC][LLVM][NVPTX] Cleanup pass initialization for NVPTX (#134311)

- Move all pass initialization function calls to NVPTX target
initialization and out of individual pass constructors.
- Move all pass initialization function declaration to NVPTX.h.
- https://github.com/llvm/llvm-project/issues/111767

llvm/lib/Target/NVPTX/NVPTX.h

@@ -55,6 +55,24 @@ MachineFunctionPass *createNVPTXPeephole();
 MachineFunctionPass *createNVPTXProxyRegErasurePass();
 MachineFunctionPass *createNVPTXForwardParamsPass();
 
+void initializeGenericToNVVMLegacyPassPass(PassRegistry &);
+void initializeNVPTXAllocaHoistingPass(PassRegistry &);
+void initializeNVPTXAssignValidGlobalNamesPass(PassRegistry &);
+void initializeNVPTXAtomicLowerPass(PassRegistry &);
+void initializeNVPTXCtorDtorLoweringLegacyPass(PassRegistry &);
+void initializeNVPTXLowerAggrCopiesPass(PassRegistry &);
+void initializeNVPTXLowerAllocaPass(PassRegistry &);
+void initializeNVPTXLowerUnreachablePass(PassRegistry &);
+void initializeNVPTXCtorDtorLoweringLegacyPass(PassRegistry &);
+void initializeNVPTXLowerArgsLegacyPassPass(PassRegistry &);
+void initializeNVPTXProxyRegErasurePass(PassRegistry &);
+void initializeNVPTXForwardParamsPassPass(PassRegistry &);
+void initializeNVVMIntrRangePass(PassRegistry &);
+void initializeNVVMReflectPass(PassRegistry &);
+void initializeNVPTXAAWrapperPassPass(PassRegistry &);
+void initializeNVPTXExternalAAWrapperPass(PassRegistry &);
+void initializeNVPTXPeepholePass(PassRegistry &);
+
 struct NVVMIntrRangePass : PassInfoMixin<NVVMIntrRangePass> {
   PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
 };

llvm/lib/Target/NVPTX/NVPTXAliasAnalysis.cpp

@@ -45,9 +45,7 @@ ImmutablePass *llvm::createNVPTXExternalAAWrapperPass() {
   return new NVPTXExternalAAWrapper();
 }
 
-NVPTXAAWrapperPass::NVPTXAAWrapperPass() : ImmutablePass(ID) {
-  initializeNVPTXAAWrapperPassPass(*PassRegistry::getPassRegistry());
-}
+NVPTXAAWrapperPass::NVPTXAAWrapperPass() : ImmutablePass(ID) {}
 
 void NVPTXAAWrapperPass::getAnalysisUsage(AnalysisUsage &AU) const {
   AU.setPreservesAll();

llvm/lib/Target/NVPTX/NVPTXAliasAnalysis.h

@@ -98,9 +98,7 @@ public:
 };
 
 ImmutablePass *createNVPTXAAWrapperPass();
-void initializeNVPTXAAWrapperPassPass(PassRegistry &);
 ImmutablePass *createNVPTXExternalAAWrapperPass();
-void initializeNVPTXExternalAAWrapperPass(PassRegistry &);
 
 } // end namespace llvm
 

llvm/lib/Target/NVPTX/NVPTXAllocaHoisting.cpp

@@ -11,6 +11,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "NVPTXAllocaHoisting.h"
+#include "NVPTX.h"
 #include "llvm/CodeGen/StackProtector.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/Function.h"
@@ -57,10 +58,6 @@ bool NVPTXAllocaHoisting::runOnFunction(Function &function) {
 
 char NVPTXAllocaHoisting::ID = 0;
 
-namespace llvm {
-void initializeNVPTXAllocaHoistingPass(PassRegistry &);
-}
-
 INITIALIZE_PASS(
     NVPTXAllocaHoisting, "alloca-hoisting",
     "Hoisting alloca instructions in non-entry blocks to the entry block",

llvm/lib/Target/NVPTX/NVPTXAllocaHoisting.h

@@ -16,7 +16,7 @@
 namespace llvm {
 class FunctionPass;
 
-extern FunctionPass *createAllocaHoisting();
+FunctionPass *createAllocaHoisting();
 } // end namespace llvm
 
 #endif

llvm/lib/Target/NVPTX/NVPTXAssignValidGlobalNames.cpp

@@ -38,10 +38,6 @@ public:
 
 char NVPTXAssignValidGlobalNames::ID = 0;
 
-namespace llvm {
-void initializeNVPTXAssignValidGlobalNamesPass(PassRegistry &);
-}
-
 INITIALIZE_PASS(NVPTXAssignValidGlobalNames, "nvptx-assign-valid-global-names",
                 "Assign valid PTX names to globals", false, false)
 

llvm/lib/Target/NVPTX/NVPTXAtomicLower.cpp

@@ -11,6 +11,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "NVPTXAtomicLower.h"
+#include "NVPTX.h"
 #include "llvm/CodeGen/StackProtector.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/InstIterator.h"
@@ -55,10 +56,6 @@ bool NVPTXAtomicLower::runOnFunction(Function &F) {
 
 char NVPTXAtomicLower::ID = 0;
 
-namespace llvm {
-void initializeNVPTXAtomicLowerPass(PassRegistry &);
-}
-
 INITIALIZE_PASS(NVPTXAtomicLower, "nvptx-atomic-lower",
                 "Lower atomics of local memory to simple load/stores", false,
                 false)

llvm/lib/Target/NVPTX/NVPTXCtorDtorLowering.cpp

@@ -256,7 +256,6 @@ PreservedAnalyses NVPTXCtorDtorLoweringPass::run(Module &M,
 }
 
 char NVPTXCtorDtorLoweringLegacy::ID = 0;
-char &llvm::NVPTXCtorDtorLoweringLegacyPassID = NVPTXCtorDtorLoweringLegacy::ID;
 INITIALIZE_PASS(NVPTXCtorDtorLoweringLegacy, DEBUG_TYPE,
                 "Lower ctors and dtors for NVPTX", false, false)
 

llvm/lib/Target/NVPTX/NVPTXCtorDtorLowering.h

@@ -15,9 +15,6 @@ namespace llvm {
 class Module;
 class PassRegistry;
 
-extern char &NVPTXCtorDtorLoweringLegacyPassID;
-extern void initializeNVPTXCtorDtorLoweringLegacyPass(PassRegistry &);
-
 /// Lower llvm.global_ctors and llvm.global_dtors to special kernels.
 class NVPTXCtorDtorLoweringPass
     : public PassInfoMixin<NVPTXCtorDtorLoweringPass> {

llvm/lib/Target/NVPTX/NVPTXForwardParams.cpp

@@ -136,16 +136,10 @@ static bool forwardDeviceParams(MachineFunction &MF) {
 ///                       Pass (Manager) Boilerplate
 /// ----------------------------------------------------------------------------
 
-namespace llvm {
-void initializeNVPTXForwardParamsPassPass(PassRegistry &);
-} // namespace llvm
-
 namespace {
 struct NVPTXForwardParamsPass : public MachineFunctionPass {
   static char ID;
-  NVPTXForwardParamsPass() : MachineFunctionPass(ID) {
-    initializeNVPTXForwardParamsPassPass(*PassRegistry::getPassRegistry());
-  }
+  NVPTXForwardParamsPass() : MachineFunctionPass(ID) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override;
 

llvm/lib/Target/NVPTX/NVPTXLowerAggrCopies.cpp

@@ -13,6 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "NVPTXLowerAggrCopies.h"
+#include "NVPTX.h"
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/CodeGen/StackProtector.h"
 #include "llvm/IR/Constants.h"
@@ -137,10 +138,6 @@ bool NVPTXLowerAggrCopies::runOnFunction(Function &F) {
 
 } // namespace
 
-namespace llvm {
-void initializeNVPTXLowerAggrCopiesPass(PassRegistry &);
-}
-
 INITIALIZE_PASS(NVPTXLowerAggrCopies, "nvptx-lower-aggr-copies",
                 "Lower aggregate copies, and llvm.mem* intrinsics into loops",
                 false, false)

llvm/lib/Target/NVPTX/NVPTXLowerAlloca.cpp

@@ -33,10 +33,6 @@
 
 using namespace llvm;
 
-namespace llvm {
-void initializeNVPTXLowerAllocaPass(PassRegistry &);
-}
-
 namespace {
 class NVPTXLowerAlloca : public FunctionPass {
   bool runOnFunction(Function &F) override;

llvm/lib/Target/NVPTX/NVPTXLowerArgs.cpp

@@ -161,10 +161,6 @@
 
 using namespace llvm;
 
-namespace llvm {
-void initializeNVPTXLowerArgsLegacyPassPass(PassRegistry &);
-}
-
 namespace {
 class NVPTXLowerArgsLegacyPass : public FunctionPass {
   bool runOnFunction(Function &F) override;

llvm/lib/Target/NVPTX/NVPTXLowerUnreachable.cpp

@@ -78,10 +78,6 @@
 
 using namespace llvm;
 
-namespace llvm {
-void initializeNVPTXLowerUnreachablePass(PassRegistry &);
-}
-
 namespace {
 class NVPTXLowerUnreachable : public FunctionPass {
   StringRef getPassName() const override;

llvm/lib/Target/NVPTX/NVPTXPeephole.cpp

@@ -44,17 +44,11 @@ using namespace llvm;
 
 #define DEBUG_TYPE "nvptx-peephole"
 
-namespace llvm {
-void initializeNVPTXPeepholePass(PassRegistry &);
-}
-
 namespace {
 struct NVPTXPeephole : public MachineFunctionPass {
  public:
   static char ID;
-  NVPTXPeephole() : MachineFunctionPass(ID) {
-    initializeNVPTXPeepholePass(*PassRegistry::getPassRegistry());
-  }
+  NVPTXPeephole() : MachineFunctionPass(ID) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override;
 

llvm/lib/Target/NVPTX/NVPTXProxyRegErasure.cpp

@@ -24,17 +24,11 @@
 
 using namespace llvm;
 
-namespace llvm {
-void initializeNVPTXProxyRegErasurePass(PassRegistry &);
-}
-
 namespace {
 
 struct NVPTXProxyRegErasure : public MachineFunctionPass {
   static char ID;
-  NVPTXProxyRegErasure() : MachineFunctionPass(ID) {
-    initializeNVPTXProxyRegErasurePass(*PassRegistry::getPassRegistry());
-  }
+  NVPTXProxyRegErasure() : MachineFunctionPass(ID) {}
 
   bool runOnMachineFunction(MachineFunction &MF) override;
 

llvm/lib/Target/NVPTX/NVPTXTargetMachine.cpp

@@ -87,27 +87,6 @@ static cl::opt<bool> EarlyByValArgsCopy(
     cl::desc("Create a copy of byval function arguments early."),
     cl::init(false), cl::Hidden);
 
-namespace llvm {
-
-void initializeGenericToNVVMLegacyPassPass(PassRegistry &);
-void initializeNVPTXAllocaHoistingPass(PassRegistry &);
-void initializeNVPTXAssignValidGlobalNamesPass(PassRegistry &);
-void initializeNVPTXAtomicLowerPass(PassRegistry &);
-void initializeNVPTXCtorDtorLoweringLegacyPass(PassRegistry &);
-void initializeNVPTXLowerAggrCopiesPass(PassRegistry &);
-void initializeNVPTXLowerAllocaPass(PassRegistry &);
-void initializeNVPTXLowerUnreachablePass(PassRegistry &);
-void initializeNVPTXCtorDtorLoweringLegacyPass(PassRegistry &);
-void initializeNVPTXLowerArgsLegacyPassPass(PassRegistry &);
-void initializeNVPTXProxyRegErasurePass(PassRegistry &);
-void initializeNVPTXForwardParamsPassPass(PassRegistry &);
-void initializeNVVMIntrRangePass(PassRegistry &);
-void initializeNVVMReflectPass(PassRegistry &);
-void initializeNVPTXAAWrapperPassPass(PassRegistry &);
-void initializeNVPTXExternalAAWrapperPass(PassRegistry &);
-
-} // end namespace llvm
-
 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeNVPTXTarget() {
   // Register the target.
   RegisterTargetMachine<NVPTXTargetMachine32> X(getTheNVPTXTarget32());
@@ -132,6 +111,7 @@ extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeNVPTXTarget() {
   initializeNVPTXDAGToDAGISelLegacyPass(PR);
   initializeNVPTXAAWrapperPassPass(PR);
   initializeNVPTXExternalAAWrapperPass(PR);
+  initializeNVPTXPeepholePass(PR);
 }
 
 static std::string computeDataLayout(bool is64Bit, bool UseShortPointers) {

llvm/lib/Target/NVPTX/NVVMIntrRange.cpp

@@ -25,16 +25,11 @@ using namespace llvm;
 
 #define DEBUG_TYPE "nvvm-intr-range"
 
-namespace llvm { void initializeNVVMIntrRangePass(PassRegistry &); }
-
 namespace {
 class NVVMIntrRange : public FunctionPass {
 public:
   static char ID;
-  NVVMIntrRange() : FunctionPass(ID) {
-
-    initializeNVVMIntrRangePass(*PassRegistry::getPassRegistry());
-  }
+  NVVMIntrRange() : FunctionPass(ID) {}
 
   bool runOnFunction(Function &) override;
 };

llvm/lib/Target/NVPTX/NVVMReflect.cpp

@@ -47,19 +47,13 @@ using namespace llvm;
 
 #define DEBUG_TYPE "nvptx-reflect"
 
-namespace llvm {
-void initializeNVVMReflectPass(PassRegistry &);
-}
-
 namespace {
 class NVVMReflect : public FunctionPass {
 public:
   static char ID;
   unsigned int SmVersion;
   NVVMReflect() : NVVMReflect(0) {}
-  explicit NVVMReflect(unsigned int Sm) : FunctionPass(ID), SmVersion(Sm) {
-    initializeNVVMReflectPass(*PassRegistry::getPassRegistry());
-  }
+  explicit NVVMReflect(unsigned int Sm) : FunctionPass(ID), SmVersion(Sm) {}
 
   bool runOnFunction(Function &) override;
 };