[llvm] [SPIR-V][NFC] Remove unused helpers (PR #195804)

[Arseniy Obolenskiy via llvm-commits]

https://github.com/aobolensk created https://github.com/llvm/llvm-project/pull/195804

None

>From 3ff40cfd60c1bc65a8007572c57adfdfc05835ec Mon Sep 17 00:00:00 2001
From: Arseniy Obolenskiy <arseniy.obolenskiy at amd.com>
Date: Tue, 5 May 2026 10:01:30 +0200
Subject: [PATCH] [SPIR-V][NFC] Remove unused helpers

---
 llvm/lib/Target/SPIRV/SPIRVModuleAnalysis.cpp |  2 +-
 llvm/lib/Target/SPIRV/SPIRVTargetObjectFile.h |  3 ---
 llvm/lib/Target/SPIRV/SPIRVUtils.cpp          |  4 ----
 llvm/lib/Target/SPIRV/SPIRVUtils.h            | 13 -------------
 4 files changed, 1 insertion(+), 21 deletions(-)

diff --git a/llvm/lib/Target/SPIRV/SPIRVModuleAnalysis.cpp b/llvm/lib/Target/SPIRV/SPIRVModuleAnalysis.cpp
index f32f3006c5e0e..9acd69cddcc7f 100644
--- a/llvm/lib/Target/SPIRV/SPIRVModuleAnalysis.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVModuleAnalysis.cpp
@@ -579,7 +579,7 @@ void SPIRVModuleAnalysis::collectFuncNames(MachineInstr &MI,
       if (Lnk == SPIRV::LinkageType::Import) {
         // Map imported function name to function ID register.
         const Function *ImportedFunc =
-            F->getParent()->getFunction(getStringImm(MI, 2));
+            F->getParent()->getFunction(getSPIRVStringOperand(MI, 2));
         Register Target = MI.getOperand(0).getReg();
         MAI.GlobalObjMap[ImportedFunc] =
             MAI.getRegisterAlias(MI.getMF(), Target);
diff --git a/llvm/lib/Target/SPIRV/SPIRVTargetObjectFile.h b/llvm/lib/Target/SPIRV/SPIRVTargetObjectFile.h
index 078af7b22d8ae..c89f30075595f 100644
--- a/llvm/lib/Target/SPIRV/SPIRVTargetObjectFile.h
+++ b/llvm/lib/Target/SPIRV/SPIRVTargetObjectFile.h
@@ -19,9 +19,6 @@ class SPIRVTargetObjectFile : public TargetLoweringObjectFile {
 public:
   ~SPIRVTargetObjectFile() override;
 
-  void Initialize(MCContext &ctx, const TargetMachine &TM) override {
-    TargetLoweringObjectFile::Initialize(ctx, TM);
-  }
   // All words in a SPIR-V module (excepting the first 5 ones) are a linear
   // sequence of instructions in a specific order. We put all the instructions
   // in the single text section.
diff --git a/llvm/lib/Target/SPIRV/SPIRVUtils.cpp b/llvm/lib/Target/SPIRV/SPIRVUtils.cpp
index 6f8411f05cb52..200cd743f004d 100644
--- a/llvm/lib/Target/SPIRV/SPIRVUtils.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVUtils.cpp
@@ -172,10 +172,6 @@ void addStringImm(const StringRef &Str, IRBuilder<> &B,
   }
 }
 
-std::string getStringImm(const MachineInstr &MI, unsigned StartIndex) {
-  return getSPIRVStringOperand(MI, StartIndex);
-}
-
 std::string getStringValueFromReg(Register Reg, MachineRegisterInfo &MRI) {
   MachineInstr *Def = getVRegDef(MRI, Reg);
   assert(Def && Def->getOpcode() == TargetOpcode::G_GLOBAL_VALUE &&
diff --git a/llvm/lib/Target/SPIRV/SPIRVUtils.h b/llvm/lib/Target/SPIRV/SPIRVUtils.h
index 50e8788d79b2d..4cd608cc86f90 100644
--- a/llvm/lib/Target/SPIRV/SPIRVUtils.h
+++ b/llvm/lib/Target/SPIRV/SPIRVUtils.h
@@ -31,7 +31,6 @@
 namespace llvm {
 class MCInst;
 class MachineFunction;
-class MachineInstr;
 class MachineInstrBuilder;
 class MachineIRBuilder;
 class MachineRegisterInfo;
@@ -40,7 +39,6 @@ class StringRef;
 class SPIRVInstrInfo;
 class SPIRVSubtarget;
 class SPIRVGlobalRegistry;
-class SPIRVTypeInst;
 
 // This class implements a partial ordering visitor, which visits a cyclic graph
 // in natural topological-like ordering. Topological ordering is not defined for
@@ -181,10 +179,6 @@ void addStringImm(const StringRef &Str, MachineInstrBuilder &MIB);
 void addStringImm(const StringRef &Str, IRBuilder<> &B,
                   std::vector<Value *> &Args);
 
-// Read the series of integer operands back as a null-terminated string using
-// the reverse of the logic in addStringImm.
-std::string getStringImm(const MachineInstr &MI, unsigned StartIndex);
-
 // Returns the string constant that the register refers to. It is assumed that
 // Reg is a global value that contains a string.
 std::string getStringValueFromReg(Register Reg, MachineRegisterInfo &MRI);
@@ -398,13 +392,6 @@ inline Type *getPointeeTypeByAttr(Argument *Arg) {
   return nullptr;
 }
 
-inline Type *reconstructFunctionType(Function *F) {
-  SmallVector<Type *> ArgTys;
-  for (unsigned i = 0; i < F->arg_size(); ++i)
-    ArgTys.push_back(F->getArg(i)->getType());
-  return FunctionType::get(F->getReturnType(), ArgTys, F->isVarArg());
-}
-
 #define TYPED_PTR_TARGET_EXT_NAME "spirv.$TypedPointerType"
 inline Type *getTypedPointerWrapper(Type *ElemTy, unsigned AS) {
   return TargetExtType::get(ElemTy->getContext(), TYPED_PTR_TARGET_EXT_NAME,