5 files changed, 10 insertions, 0 deletions
diff --git a/src/qml/compiler/qv4ssa.cpp b/src/qml/compiler/qv4ssa.cpp
index cc542e94e7..62e2833089 100644
--- a/src/qml/compiler/qv4ssa.cpp
+++ b/src/qml/compiler/qv4ssa.cpp
@@ -2345,6 +2345,7 @@ private:
         case OpIncrement:
         case OpDecrement:
             Q_ASSERT(!"Inplace operators should have been removed!");
+            Q_UNREACHABLE();
         default:
             Q_UNIMPLEMENTED();
             Q_UNREACHABLE();
@@ -2645,6 +2646,7 @@ private:
                     case OpMul:
                         if (!targetTemp || !knownOk.contains(*targetTemp))
                             return false;
+                        Q_FALLTHROUGH();
                     case OpBitAnd:
                     case OpBitOr:
                     case OpBitXor:
diff --git a/src/qml/jit/qv4isel_masm.cpp b/src/qml/jit/qv4isel_masm.cpp
index 7797f8c8db..4afcd1517f 100644
--- a/src/qml/jit/qv4isel_masm.cpp
+++ b/src/qml/jit/qv4isel_masm.cpp
@@ -994,6 +994,7 @@ void InstructionSelection<JITAssembler>::convertTypeToBool(IR::Expr *source, IR:
         generateRuntimeCall(_as, JITTargetPlatform::ReturnValueRegister, toBoolean,
                             PointerToValue(source));
         _as->storeBool(JITTargetPlatform::ReturnValueRegister, target);
+        Q_FALLTHROUGH();
     case IR::VarType:
     default:
         Pointer addr = _as->loadAddress(JITTargetPlatform::ScratchRegister, source);
diff --git a/src/qml/jit/qv4regalloc.cpp b/src/qml/jit/qv4regalloc.cpp
index 8eafaaaa8a..d418b050c4 100644
--- a/src/qml/jit/qv4regalloc.cpp
+++ b/src/qml/jit/qv4regalloc.cpp
@@ -125,6 +125,7 @@ protected:
                 *out << ri->prettyName();
                 break;
             }
+            Q_FALLTHROUGH();
         }
         default:
             IRPrinterWithPositions::visitTemp(e);
@@ -662,6 +663,7 @@ protected: // IRDecoder
                     addUses(rightSource->asTemp(), Use::MustHaveRegister);
                     break;
                 }
+                Q_FALLTHROUGH();
 #endif
             case OpBitAnd:
             case OpBitOr:
diff --git a/src/qml/jsruntime/qv4runtime.cpp b/src/qml/jsruntime/qv4runtime.cpp
index 43e99cf768..42bf24d7f3 100644
--- a/src/qml/jsruntime/qv4runtime.cpp
+++ b/src/qml/jsruntime/qv4runtime.cpp
@@ -472,6 +472,7 @@ Heap::String *RuntimeHelpers::convertToString(ExecutionEngine *engine, const Val
     switch (value.type()) {
     case Value::Empty_Type:
         Q_ASSERT(!"empty Value encountered");
+        Q_UNREACHABLE();
     case Value::Undefined_Type:
         return engine->id_undefined()->d();
     case Value::Null_Type:
@@ -504,6 +505,7 @@ static Heap::String *convert_to_string_add(ExecutionEngine *engine, const Value
     switch (value.type()) {
     case Value::Empty_Type:
         Q_ASSERT(!"empty Value encountered");
+        Q_UNREACHABLE();
     case Value::Undefined_Type:
         return engine->id_undefined()->d();
     case Value::Null_Type:
diff --git a/src/qml/jsruntime/qv4value.cpp b/src/qml/jsruntime/qv4value.cpp
index e34ac9c764..f41442df7a 100644
--- a/src/qml/jsruntime/qv4value.cpp
+++ b/src/qml/jsruntime/qv4value.cpp
@@ -113,6 +113,7 @@ double Value::toNumberImpl() const
     case QV4::Value::Managed_Type:
 #ifdef V4_BOOTSTRAP
         Q_UNIMPLEMENTED();
+        Q_FALLTHROUGH();
 #else
         if (String *s = stringValue())
             return RuntimeHelpers::stringToNumber(s->toQString());
@@ -140,6 +141,7 @@ QString Value::toQStringNoThrow() const
     switch (type()) {
     case Value::Empty_Type:
         Q_ASSERT(!"empty Value encountered");
+        Q_UNREACHABLE();
     case Value::Undefined_Type:
         return QStringLiteral("undefined");
     case Value::Null_Type:
@@ -193,6 +195,7 @@ QString Value::toQString() const
     switch (type()) {
     case Value::Empty_Type:
         Q_ASSERT(!"empty Value encountered");
+        Q_UNREACHABLE();
     case Value::Undefined_Type:
         return QStringLiteral("undefined");
     case Value::Null_Type: