SampleProfileProbe: Remove unused field.

Author: pcc

llvm/include/llvm/Transforms/IPO/SampleProfileProbe.h

@@ -74,7 +74,7 @@ class PseudoProbeVerifier {
 class SampleProfileProber {
 public:
   // Give an empty module id when the prober is not used for instrumentation.
-  SampleProfileProber(Function &F, const std::string &CurModuleUniqueId);
+  SampleProfileProber(Function &F);
   void instrumentOneFunc(Function &F, TargetMachine *TM);
 
 private:

llvm/lib/Transforms/IPO/SampleProfileProbe.cpp

@@ -168,9 +168,7 @@ void PseudoProbeVerifier::verifyProbeFactors(
   }
 }
 
-SampleProfileProber::SampleProfileProber(Function &Func,
-                                         const std::string &CurModuleUniqueId)
-    : F(&Func), CurModuleUniqueId(CurModuleUniqueId) {
+SampleProfileProber::SampleProfileProber(Function &Func) : F(&Func) {
   BlockProbeIds.clear();
   CallProbeIds.clear();
   LastProbeId = (uint32_t)PseudoProbeReservedId::Last;
@@ -452,7 +450,6 @@ void SampleProfileProber::instrumentOneFunc(Function &F, TargetMachine *TM) {
 
 PreservedAnalyses SampleProfileProbePass::run(Module &M,
                                               ModuleAnalysisManager &AM) {
-  auto ModuleId = getUniqueModuleId(&M);
   // Create the pseudo probe desc metadata beforehand.
   // Note that modules with only data but no functions will require this to
   // be set up so that they will be known as probed later.
@@ -461,7 +458,7 @@ PreservedAnalyses SampleProfileProbePass::run(Module &M,
   for (auto &F : M) {
     if (F.isDeclaration())
       continue;
-    SampleProfileProber ProbeManager(F, ModuleId);
+    SampleProfileProber ProbeManager(F);
     ProbeManager.instrumentOneFunc(F, TM);
   }