[lld] [lld] Remove unused local variables (NFC) (PR #138470)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/138470

None

>From a78f6ebaaeebdd49b144a1139428572ceb2e2287 Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Sun, 4 May 2025 13:16:47 -0700
Subject: [PATCH] [lld] Remove unused local variables (NFC)

---
 lld/COFF/DebugTypes.cpp  | 1 -
 lld/ELF/Driver.cpp       | 3 +--
 lld/wasm/WriterUtils.cpp | 1 -
 3 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/lld/COFF/DebugTypes.cpp b/lld/COFF/DebugTypes.cpp
index 28e6993e3eeaa..c375360d19e70 100644
--- a/lld/COFF/DebugTypes.cpp
+++ b/lld/COFF/DebugTypes.cpp
@@ -475,7 +475,6 @@ static bool equalsPath(StringRef path1, StringRef path2) {
 
 // Find by name an OBJ provided on the command line
 PrecompSource *UsePrecompSource::findObjByName(StringRef fileNameOnly) {
-  SmallString<128> currentPath;
   for (auto kv : ctx.precompSourceMappings) {
     StringRef currentFileName = sys::path::filename(kv.second->file->getName(),
                                                     sys::path::Style::windows);
diff --git a/lld/ELF/Driver.cpp b/lld/ELF/Driver.cpp
index 9d36071e1532f..e8acdbefa32bb 100644
--- a/lld/ELF/Driver.cpp
+++ b/lld/ELF/Driver.cpp
@@ -2319,8 +2319,7 @@ static void writeArchiveStats(Ctx &ctx) {
 
   os << "members\textracted\tarchive\n";
 
-  SmallVector<StringRef, 0> archives;
-  DenseMap<CachedHashStringRef, unsigned> all, extracted;
+  DenseMap<CachedHashStringRef, unsigned> extracted;
   for (ELFFileBase *file : ctx.objectFiles)
     if (file->archiveName.size())
       ++extracted[CachedHashStringRef(file->archiveName)];
diff --git a/lld/wasm/WriterUtils.cpp b/lld/wasm/WriterUtils.cpp
index f8c408084af0b..b78c354ffb97b 100644
--- a/lld/wasm/WriterUtils.cpp
+++ b/lld/wasm/WriterUtils.cpp
@@ -75,7 +75,6 @@ static std::string toString(const llvm::wasm::WasmLimits &limits) {
 }
 
 std::string toString(const WasmTableType &type) {
-  SmallString<128> ret("");
   return "type=" + toString(static_cast<ValType>(type.ElemType)) +
          "; limits=[" + toString(type.Limits) + "]";
 }