[ModuleUtils] Remove dead arg from filterDeadComdatFunctions() (NFC)

The module argument is no longer used.

llvm/include/llvm/Transforms/Utils/ModuleUtils.h

@@ -92,7 +92,7 @@ void appendToCompilerUsed(Module &M, ArrayRef<GlobalValue *> Values);
 /// DeadComdatFunctions are those where every member of the comdat is listed
 /// and thus removing them is safe (provided *all* are removed).
 void filterDeadComdatFunctions(
-    Module &M, SmallVectorImpl<Function *> &DeadComdatFunctions);
+    SmallVectorImpl<Function *> &DeadComdatFunctions);
 
 /// Produce a unique identifier for this module by taking the MD5 sum of
 /// the names of the module's strong external symbols that are not comdat

llvm/lib/Transforms/IPO/AlwaysInliner.cpp

@@ -117,7 +117,7 @@ PreservedAnalyses AlwaysInlinerPass::run(Module &M,
   if (!InlinedFunctions.empty()) {
     // Now we just have the comdat functions. Filter out the ones whose comdats
     // are not actually dead.
-    filterDeadComdatFunctions(M, InlinedFunctions);
+    filterDeadComdatFunctions(InlinedFunctions);
     // The remaining functions are actually dead.
     for (Function *F : InlinedFunctions) {
       M.getFunctionList().erase(F);

llvm/lib/Transforms/IPO/Inliner.cpp

@@ -660,7 +660,7 @@ bool LegacyInlinerBase::removeDeadFunctions(CallGraph &CG,
   }
   if (!DeadFunctionsInComdats.empty()) {
     // Filter out the functions whose comdats remain alive.
-    filterDeadComdatFunctions(CG.getModule(), DeadFunctionsInComdats);
+    filterDeadComdatFunctions(DeadFunctionsInComdats);
     // Remove the rest.
     for (Function *F : DeadFunctionsInComdats)
       RemoveCGN(CG[F]);

llvm/lib/Transforms/Utils/CallGraphUpdater.cpp

@@ -20,8 +20,7 @@ using namespace llvm;
 
 bool CallGraphUpdater::finalize() {
   if (!DeadFunctionsInComdats.empty()) {
-    filterDeadComdatFunctions(*DeadFunctionsInComdats.front()->getParent(),
-                              DeadFunctionsInComdats);
+    filterDeadComdatFunctions(DeadFunctionsInComdats);
     DeadFunctions.append(DeadFunctionsInComdats.begin(),
                          DeadFunctionsInComdats.end());
   }

llvm/lib/Transforms/Utils/ModuleUtils.cpp

@@ -178,7 +178,7 @@ llvm::getOrCreateSanitizerCtorAndInitFunctions(
 }
 
 void llvm::filterDeadComdatFunctions(
-    Module &M, SmallVectorImpl<Function *> &DeadComdatFunctions) {
+    SmallVectorImpl<Function *> &DeadComdatFunctions) {
   SmallPtrSet<Function *, 32> MaybeDeadFunctions;
   SmallPtrSet<Comdat *, 32> MaybeDeadComdats;
   for (Function *F : DeadComdatFunctions) {