Fix compilation breakage introduced by 8404aeb.

Also fix BitVector unittest failure when DLLVM_ENABLE_ASSERTIONS are OFF, introduced by d110c3a.

Author: aganea

llvm/examples/SpeculativeJIT/SpeculativeJIT.cpp

@@ -131,7 +131,7 @@ class SpeculativeJIT {
   std::unique_ptr<ExecutionSession> ES;
   DataLayout DL;
   MangleAndInterner Mangle{*ES, DL};
-  ThreadPool CompileThreads{NumThreads};
+  ThreadPool CompileThreads{llvm::hardware_concurrency(NumThreads)};
 
   JITDylib &MainJD;
 

llvm/examples/ThinLtoJIT/ThinLtoJIT.cpp

@@ -262,7 +262,8 @@ void ThinLtoJIT::setupLayers(JITTargetMachineBuilder JTMB,
   OnDemandLayer->setPartitionFunction(CompileOnDemandLayer::compileWholeModule);
 
   // Delegate compilation to the thread pool.
-  CompileThreads = std::make_unique<ThreadPool>(NumCompileThreads);
+  CompileThreads = std::make_unique<ThreadPool>(
+      llvm::hardware_concurrency(NumCompileThreads));
   ES.setDispatchMaterialization(
       [this](JITDylib &JD, std::unique_ptr<MaterializationUnit> MU) {
         if (IsTrivialModule(MU.get())) {

llvm/examples/ThinLtoJIT/ThinLtoModuleIndex.h

@@ -26,7 +26,7 @@ class ThinLtoModuleIndex {
 public:
   ThinLtoModuleIndex(ExecutionSession &ES, unsigned ParseModuleThreads)
       : ES(ES), CombinedSummaryIndex(HaveGVs),
-        ParseModuleWorkers(ParseModuleThreads),
+        ParseModuleWorkers(llvm::hardware_concurrency(ParseModuleThreads)),
         NumParseModuleThreads(ParseModuleThreads) {}
 
   Error add(StringRef InputPath);

llvm/unittests/ADT/BitVectorTest.cpp

@@ -1166,9 +1166,11 @@ TYPED_TEST(BitVectorTest, DenseSet) {
   I = Set.insert(C);
   EXPECT_EQ(true, I.second);
 
+#if LLVM_ENABLE_ABI_BREAKING_CHECKS
   TypeParam D;
   EXPECT_DEATH(Set.insert(D),
                "Empty/Tombstone value shouldn't be inserted into map!");
+#endif
 
   EXPECT_EQ(3U, Set.size());
   EXPECT_EQ(1U, Set.count(A));