Add defense for builtin_clz/builtin_ctz in case that input is zero

deps/oblib/src/lib/container/ob_id_map.h

@@ -79,11 +79,13 @@ private:
 
 inline int calc_clz(const uint32_t s)
 {
+  OB_ASSERT(0 != s);
   return __builtin_clz(s);
 }
 
 inline int calc_clz(const uint64_t s)
 {
+  OB_ASSERT(0ULL != s);
   return __builtin_clzl(s);
 }
 

deps/oblib/src/lib/hash/ob_dchash.h

@@ -138,6 +138,7 @@ public:
 private:
   static uint64_t calc_shift(uint64_t capacity)
   {
+    OB_ASSERT(0ULL != capacity);
     return __builtin_clzll(capacity) + 1;
   }
   HashNode* locate(uint64_t hash)

deps/oblib/src/lib/queue/ob_lighty_queue.h

@@ -163,6 +163,7 @@ public:
 private:
   static uint64_t calc_n_cond(uint64_t capacity)
   {
+    OB_ASSERT(0ULL != capacity);
     return std::min(1024ULL, 1ULL << (63 - __builtin_clzll(capacity)));
   }
   uint64_t push_bounded(void* p, uint64_t limit)

deps/oblib/src/lib/utility/utility.h

@@ -71,7 +71,7 @@ int32_t parse_string_to_int_array(const char* line, const char del, int32_t* arr
 bool is2n(int64_t input);
 constexpr int64_t next_pow2(const int64_t x)
 {
-  return x ? (1ULL << (8 * sizeof(int64_t) - __builtin_clzll(x - 1))) : 1;
+  return x > 1LL ? (1ULL << (8 * sizeof(int64_t) - __builtin_clzll(x - 1))) : 1LL;
 }
 
 bool all_zero(const char* buffer, const int64_t size);