Build TestDriver for perf testing too

Internal.h

@@ -578,7 +578,8 @@ inline const char *resultToStr(ConflictSet::Result r) {
 
 namespace {
 
-template <class ConflictSetImpl> struct TestDriver {
+template <class ConflictSetImpl, bool kEnableAssertions = true>
+struct TestDriver {
   Arbitrary arbitrary;
   explicit TestDriver(const uint8_t *data, size_t size)
       : arbitrary({data, size}) {}
@@ -724,10 +725,14 @@ template <class ConflictSetImpl> struct TestDriver {
       cs.addWrites(writes, numPointWrites + numRangeWrites, v);
       CALLGRIND_STOP_INSTRUMENTATION;
 
-      refImpl.addWrites(writes, numPointWrites + numRangeWrites, v);
+      if constexpr (kEnableAssertions) {
+        refImpl.addWrites(writes, numPointWrites + numRangeWrites, v);
+      }
 
       cs.setOldestVersion(oldestVersion);
-      refImpl.setOldestVersion(oldestVersion);
+      if constexpr (kEnableAssertions) {
+        refImpl.setOldestVersion(oldestVersion);
+      }
 
 #ifdef THREAD_TEST
       thread2.join();
@@ -821,16 +826,18 @@ template <class ConflictSetImpl> struct TestDriver {
       cs.check(reads, results1, numPointReads + numRangeReads);
       CALLGRIND_STOP_INSTRUMENTATION;
 
-      // Call remaining const methods
-      cs.getBytes();
-      ConflictSet::MetricsV1 *m;
-      int count;
-      cs.getMetricsV1(&m, &count);
-      for (int i = 0; i < count; ++i) {
-        m[i].getValue();
-      }
+      if constexpr (kEnableAssertions) {
+        // Call remaining const methods
+        cs.getBytes();
+        ConflictSet::MetricsV1 *m;
+        int count;
+        cs.getMetricsV1(&m, &count);
+        for (int i = 0; i < count; ++i) {
+          m[i].getValue();
+        }
 
-      refImpl.check(reads, results2, numPointReads + numRangeReads);
+        refImpl.check(reads, results2, numPointReads + numRangeReads);
+      }
 
       auto compareResults = [reads](ConflictSet::Result *results1,
                                     ConflictSet::Result *results2, int count) {
@@ -857,9 +864,12 @@ template <class ConflictSetImpl> struct TestDriver {
         return true;
       };
 
-      if (!compareResults(results1, results2, numPointReads + numRangeReads)) {
-        ok = false;
-        return true;
+      if constexpr (kEnableAssertions) {
+        if (!compareResults(results1, results2,
+                            numPointReads + numRangeReads)) {
+          ok = false;
+          return true;
+        }
       }
 
 #ifdef THREAD_TEST