diff --git a/assembler/assembly-parser.cpp b/assembler/assembly-parser.cpp
index 623aff38e672ed9bb01566f2a9d677056ca99961..aa8c8be0995597b9ea968daebb0788681b2c255e 100644
--- a/assembler/assembly-parser.cpp
+++ b/assembler/assembly-parser.cpp
@@ -349,7 +349,7 @@ void Parser::ParseResetFunctionLabelsAndParams()
 
     for (const auto &t : context_.function_arguments_lists) {
         curr_func_ = &(program_.function_table.at(t.first));
-        curr_func_->regs_num = curr_func_->value_of_first_param + 1;
+        curr_func_->regs_num = static_cast<size_t>(curr_func_->value_of_first_param + 1);
 
         for (const auto &v : t.second) {
             if (!curr_func_->ins.empty() && curr_func_->ins.size() >= v.first &&
diff --git a/assembler/assembly-parser.h b/assembler/assembly-parser.h
index 1e6b0d9dcec648fa7897ac991d0e3e1802d0c52c..725a3906a9329c54ecbe626f46fa10272e8ff320 100644
--- a/assembler/assembly-parser.h
+++ b/assembler/assembly-parser.h
@@ -112,7 +112,7 @@ private:
     inline void GetWarning(const std::string &mess = "", Error::ErrorType err = Error::ErrorType::ERR_NONE,
                            int8_t shift = 0, const std::string &add_mess = "")
     {
-        war_.emplace_back(mess, line_stric_, err, add_mess, context_.tokens[context_.number - 1].bound_left + shift,
+        war_.emplace_back(mess, line_stric_, err, add_mess, context_.tokens[context_.number - 1].bound_left + static_cast<size_t>(shift),
                           context_.tokens[context_.number - 1].bound_right,
                           context_.tokens[context_.number - 1].whole_line, Error::ErrorClass::WARNING);
     }
diff --git a/libpandabase/os/unix/futex/mutex.cpp b/libpandabase/os/unix/futex/mutex.cpp
index 444e02e920a26caf7d4d19bb93b2782ea3256815..d3da1d38f2b800cf1001293bb828b79a95ddb5de 100644
--- a/libpandabase/os/unix/futex/mutex.cpp
+++ b/libpandabase/os/unix/futex/mutex.cpp
@@ -440,8 +440,8 @@ const int64_t NANOSECONDS_PER_SEC = 1000000000;
 struct timespec ConvertTime(uint64_t ms, uint64_t ns)
 {
     struct timespec time = {0, 0};
-    time_t seconds = ms / MILLISECONDS_PER_SEC;
-    time_t nanoseconds = (ms % MILLISECONDS_PER_SEC) * NANOSECONDS_PER_MILLISEC + ns;
+    auto seconds = static_cast<time_t>(ms / MILLISECONDS_PER_SEC);
+    auto nanoseconds = static_cast<time_t>((ms % MILLISECONDS_PER_SEC) * NANOSECONDS_PER_MILLISEC + ns);
     time.tv_sec += seconds;
     time.tv_nsec += nanoseconds;
     if (time.tv_nsec >= NANOSECONDS_PER_SEC) {
diff --git a/libpandabase/os/unix/sighooklib/sighook.cpp b/libpandabase/os/unix/sighooklib/sighook.cpp
index 1a5af974958daa3b3d702fbd3efd9d1088e9063f..9cec549f1aa0320acfcccb4d18ae78a3036cb55f 100644
--- a/libpandabase/os/unix/sighooklib/sighook.cpp
+++ b/libpandabase/os/unix/sighooklib/sighook.cpp
@@ -265,7 +265,7 @@ void SignalHook::Handler(int signo, siginfo_t *siginfo, void *ucontext_raw)
     }
 
     // Call user handler
-    size_t handler_flags = signal_hooks[signo].user_action_.sa_flags;
+    auto handler_flags = static_cast<size_t>(signal_hooks[signo].user_action_.sa_flags);
     auto *ucontext = static_cast<ucontext_t *>(ucontext_raw);
     sigset_t mask;
     sigemptyset(&mask);
diff --git a/libpandabase/utils/murmur3_hash.h b/libpandabase/utils/murmur3_hash.h
index 25dadd45396b53c3b6374ba5a12e144887d8ab98..91b48efcc1546a38eb1d534a36c3330579401225 100644
--- a/libpandabase/utils/murmur3_hash.h
+++ b/libpandabase/utils/murmur3_hash.h
@@ -121,7 +121,7 @@ private:
             // Get ((uint8_t*)tail)[i - 1]:
             uintptr_t block_pointer = tail + sizeof(uint8_t) * (i - 1);
             uint8_t block = *reinterpret_cast<uint8_t *>(block_pointer);
-            uint32_t temp = static_cast<uint32_t>(block << (TAIL_SHIFT * (i - 1U)));
+            uint32_t temp = static_cast<uint32_t>(block) << (TAIL_SHIFT * (i - 1U));
             k1 ^= temp;
             if (i == 1) {
                 k1 = Rotl(k1, TAIL_LAST_SHIFT);
@@ -180,7 +180,7 @@ private:
         uint32_t k1 = 0;
         for (size_t i = tail_len; i > 0; i--) {
             uint8_t block = memblock[i - 1U];
-            uint32_t temp = static_cast<uint32_t>(block << (TAIL_SHIFT * (i - 1U)));
+            uint32_t temp = static_cast<uint32_t>(block) << (TAIL_SHIFT * (i - 1U));
             k1 ^= temp;
             if (i == 1) {
                 k1 = Rotl(k1, TAIL_LAST_SHIFT);
diff --git a/libpandabase/utils/utf.cpp b/libpandabase/utils/utf.cpp
index 8214beb39bf7aef6200a50315f089cfc1c7b1a19..2f98d4319c263b8453300ced8b889af46fe3de4b 100644
--- a/libpandabase/utils/utf.cpp
+++ b/libpandabase/utils/utf.cpp
@@ -261,7 +261,7 @@ int CompareMUtf8ToMUtf8(const uint8_t *mutf8_1, const uint8_t *mutf8_2)
     auto [c1p1, c1p2] = SplitUtf16Pair(c1);
     auto [c2p1, c2p2] = SplitUtf16Pair(c2);
 
-    int result = c1p1 - c2p1;
+    auto result = static_cast<int>(c1p1 - c2p1);
     if (result != 0) {
         return result;
     }
@@ -308,7 +308,7 @@ int CompareUtf8ToUtf8(const uint8_t *utf8_1, size_t utf8_1_length, const uint8_t
     auto [c1p1, c1p2] = SplitUtf16Pair(c1);
     auto [c2p1, c2p2] = SplitUtf16Pair(c2);
 
-    int result = c1p1 - c2p1;
+    auto result = static_cast<int>(c1p1 - c2p1);
     if (result != 0) {
         return result;
     }
diff --git a/libpandafile/debug_info_extractor.cpp b/libpandafile/debug_info_extractor.cpp
index a0aa3b4da503ee4e4dd0ba3ad3fb982ceb037634..74a25390e47a4c6a11b03544a017aced44d80f97 100644
--- a/libpandafile/debug_info_extractor.cpp
+++ b/libpandafile/debug_info_extractor.cpp
@@ -222,7 +222,7 @@ private:
     {
         ASSERT(static_cast<uint8_t>(opcode) >= LineNumberProgramItem::OPCODE_BASE);
 
-        auto adjust_opcode = static_cast<uint8_t>(opcode) - LineNumberProgramItem::OPCODE_BASE;
+        auto adjust_opcode = static_cast<uint8_t>(opcode - LineNumberProgramItem::OPCODE_BASE);
         auto pc_offset = static_cast<uint32_t>(adjust_opcode / LineNumberProgramItem::LINE_RANGE);
         int32_t line_offset = adjust_opcode % LineNumberProgramItem::LINE_RANGE + LineNumberProgramItem::LINE_BASE;
         state_.AdvancePc(pc_offset);