diff --git a/src/plugins/valgrind/callgrind/callgrindcycledetection.cpp b/src/plugins/valgrind/callgrind/callgrindcycledetection.cpp
index b47ecb4697d..79443aa5b65 100644
--- a/src/plugins/valgrind/callgrind/callgrindcycledetection.cpp
+++ b/src/plugins/valgrind/callgrind/callgrindcycledetection.cpp
@@ -45,14 +45,14 @@ CycleDetection::CycleDetection(ParseData *data)
 
 QVector<const Function *> CycleDetection::run(const QVector<const Function *> &input)
 {
-    foreach (const Function *function, input) {
+    for (const Function *function : input) {
         Node *node = new Node;
         node->function = function;
         node->dfs = -1;
         node->lowlink = -1;
         m_nodes.insert(function, node);
     }
-    foreach (Node *node, m_nodes) {
+    for (Node *node : qAsConst(m_nodes)) {
         if (node->dfs == -1)
             tarjan(node);
     }
@@ -69,7 +69,8 @@ void CycleDetection::tarjan(Node *node)
     m_depth++;
     m_stack.push(node);
 
-    foreach (const FunctionCall *call, node->function->outgoingCalls())
+    const QVector<const FunctionCall *> calls = node->function->outgoingCalls();
+    for (const FunctionCall *call : calls)
         tarjanForChildNode(node, m_nodes.value(call->callee()));
 
     if (node->dfs == node->lowlink) {
diff --git a/src/plugins/valgrind/callgrind/callgrindfunction.cpp b/src/plugins/valgrind/callgrind/callgrindfunction.cpp
index f468164aec3..9a7f4fe81bc 100644
--- a/src/plugins/valgrind/callgrind/callgrindfunction.cpp
+++ b/src/plugins/valgrind/callgrind/callgrindfunction.cpp
@@ -67,7 +67,7 @@ void Function::Private::accumulateCost(QVector<quint64> &base, const QVector<qui
     } else {
         ///TODO: see whether .data() is noticably faster (less detaching)
         int i = 0;
-        foreach (quint64 cost, add)
+        for (quint64 cost : add)
             base[i++] += cost;
     }
 }
@@ -175,7 +175,7 @@ void Function::setObject(qint64 id)
 QString Function::location() const
 {
     QString pos;
-    foreach (const CostItem *costItem, d->m_costItems) {
+    for (const CostItem *costItem : qAsConst(d->m_costItems)) {
         if (costItem->differingFileId() != -1) {
             QTextStream stream(&pos);
             stream << '(';
@@ -214,7 +214,7 @@ int Function::lineNumber() const
     if (lineIdx == -1)
         return -1;
 
-    foreach (const CostItem *costItem, d->m_costItems) {
+    for (const CostItem *costItem : qAsConst(d->m_costItems)) {
         if (costItem->differingFileId() == -1)
             return costItem->position(lineIdx);
     }
@@ -287,7 +287,7 @@ void Function::addCostItem(const CostItem *item)
 void Function::finalize()
 {
     bool recursive = false;
-    foreach (const FunctionCall *call, d->m_incomingCalls) {
+    for (const FunctionCall *call : qAsConst(d->m_incomingCalls)) {
         if (call->caller() == this) {
             recursive = true;
             break;
@@ -300,9 +300,10 @@ void Function::finalize()
         // e.g.: A -> B -> B ..., C -> B -> B ...
         // cost of B = cost of call to B in A + cost of call to B in C + ...
         d->m_inclusiveCost.fill(0);
-        foreach (const FunctionCall *call, d->m_incomingCalls) {
+        for (const FunctionCall *call : qAsConst(d->m_incomingCalls)) {
             if (call->caller() != this) {
-                foreach (const CostItem *costItem, call->caller()->costItems()) {
+                const QVector<const CostItem *> costItems = call->caller()->costItems();
+                for (const CostItem *costItem : costItems) {
                     if (costItem->call() && costItem->call()->callee() == this)
                         d->accumulateCost(d->m_inclusiveCost, costItem->costs());
                 }
diff --git a/src/plugins/valgrind/callgrind/callgrindfunctioncycle.cpp b/src/plugins/valgrind/callgrind/callgrindfunctioncycle.cpp
index e070b5a6876..c9c43cb3021 100644
--- a/src/plugins/valgrind/callgrind/callgrindfunctioncycle.cpp
+++ b/src/plugins/valgrind/callgrind/callgrindfunctioncycle.cpp
@@ -73,16 +73,17 @@ void FunctionCycle::setFunctions(const QVector<const Function *> &functions)
     d->m_selfCost.fill(0, d->m_data->events().size());
     d->m_inclusiveCost.fill(0, d->m_data->events().size());
 
-    foreach (const Function *func, functions) {
+    for (const Function *func : functions) {
         // just add up self cost
         Private::accumulateCost(d->m_selfCost, func->selfCosts());
         // add outgoing calls to functions that are not part of the cycle
-        foreach (const FunctionCall *call, func->outgoingCalls()) {
+        const QVector<const FunctionCall *> calls = func->outgoingCalls();
+        for (const FunctionCall *call : calls) {
             if (!functions.contains(call->callee()))
                 d->accumulateCall(call, Function::Private::Outgoing);
         }
         // add incoming calls from functions that are not part of the cycle
-        foreach (const FunctionCall *call, func->incomingCalls()) {
+        for (const FunctionCall *call : calls) {
             if (!functions.contains(call->caller())) {
                 d->accumulateCall(call, Function::Private::Incoming);
                 d->m_called += call->calls();
diff --git a/src/plugins/valgrind/callgrind/callgrindparsedata.cpp b/src/plugins/valgrind/callgrind/callgrindparsedata.cpp
index 55398ce79ae..ba1e4258023 100644
--- a/src/plugins/valgrind/callgrind/callgrindparsedata.cpp
+++ b/src/plugins/valgrind/callgrind/callgrindparsedata.cpp
@@ -92,7 +92,7 @@ ParseData::Private::~Private()
 void ParseData::Private::cleanupFunctionCycles()
 {
     m_cycleCacheValid = false;
-    foreach (const Function *func, m_cycleCache) {
+    for (const Function *func : qAsConst(m_cycleCache)) {
         if (dynamic_cast<const FunctionCycle *>(func))
             delete func;
     }
diff --git a/src/plugins/valgrind/callgrind/callgrindparser.cpp b/src/plugins/valgrind/callgrind/callgrindparser.cpp
index 1288bd16846..421583d3671 100644
--- a/src/plugins/valgrind/callgrind/callgrindparser.cpp
+++ b/src/plugins/valgrind/callgrind/callgrindparser.cpp
@@ -219,17 +219,19 @@ void Parser::Private::parse(const FilePath &filePath)
 
     // build fast lookup of functions by their nameId
     QHash<qint64, QList<const Function *> > functionLookup;
-    foreach (const Function *function, data->functions()) {
+    const QVector<const Function *> functions = data->functions();
+    for (const Function *function : functions) {
         functionLookup[function->nameId()].append(function);
     }
 
     // functions that need to accumulate their calees
     QSet<Function *> pendingFunctions;
-    foreach (const CallData &callData, pendingCallees) {
+    for (const CallData &callData : qAsConst(pendingCallees)) {
         Function *calledFunction = nullptr;
         QTC_ASSERT(callData.call, continue);
         QTC_ASSERT(callData.call->caller(), continue);
-        foreach (const Function *function, functionLookup.value(callData.calledFunction)) {
+        const QList<const Function *> functions = functionLookup.value(callData.calledFunction);
+        for (const Function *function : functions) {
             QTC_ASSERT(function->nameId() == callData.calledFunction, continue);
             if (function->objectId() == callData.calledObject
                 && function->fileId() == callData.calledFile)
@@ -245,7 +247,7 @@ void Parser::Private::parse(const FilePath &filePath)
             qDebug() << "caller is:" << callData.call->caller()->name() << callData.call->caller()->nameId();
             qDebug() << "called file:" << callData.calledFile << "object:" << callData.calledObject;
             qDebug() << data->stringForFileCompression(callData.calledFile) << data->stringForObjectCompression(callData.calledObject);
-            foreach (const Function *function, functionLookup.value(callData.calledFunction)) {
+            for (const Function *function, functionLookup.value(callData.calledFunction)) {
                 qDebug() << "available function file:" << function->fileId() << function->file() << "object:" << function->objectId() << function->object();
             }
         }
@@ -263,7 +265,7 @@ void Parser::Private::parse(const FilePath &filePath)
     // lookup done
 
     // now accumulate callees
-    foreach (Function *func, pendingFunctions)
+    for (Function *func : qAsConst(pendingFunctions))
         func->finalize();
 
     emit q->parserDataReady();
@@ -322,7 +324,8 @@ void Parser::Private::parseHeader(QIODevice *device)
         } else if (line.startsWith("summary: ")) {
             QString values = getValue(line, 9);
             uint i = 0;
-            foreach (const QString &value, values.split(' ', Qt::SkipEmptyParts))
+            const QStringList valueList = values.split(' ', Qt::SkipEmptyParts);
+            for (const QString &value : valueList)
                 data->setTotalCost(i++, value.toULongLong());
         } else if (!line.trimmed().isEmpty()) {
             // handle line and exit parseHeader
diff --git a/src/plugins/valgrind/callgrind/callgrindproxymodel.cpp b/src/plugins/valgrind/callgrind/callgrindproxymodel.cpp
index 66a362f4956..68f77e83f88 100644
--- a/src/plugins/valgrind/callgrind/callgrindproxymodel.cpp
+++ b/src/plugins/valgrind/callgrind/callgrindproxymodel.cpp
@@ -130,7 +130,8 @@ bool DataProxyModel::filterAcceptsRow(int source_row, const QModelIndex &source_
     // check if the function from this index is a child of (called by) the filter function
     if (m_function) {
         bool isValid = false;
-        foreach (const FunctionCall *call, func->incomingCalls()) {
+        const QVector<const FunctionCall *> calls = func->incomingCalls();
+        for (const FunctionCall *call : calls) {
             if (call->caller() == m_function) {
                 isValid = true;
                 break;
diff --git a/src/plugins/valgrind/callgrindtool.cpp b/src/plugins/valgrind/callgrindtool.cpp
index a44beb02243..f5cef8600de 100644
--- a/src/plugins/valgrind/callgrindtool.cpp
+++ b/src/plugins/valgrind/callgrindtool.cpp
@@ -735,7 +735,8 @@ void CallgrindToolPrivate::updateEventCombo()
     }
 
     m_eventCombo->show();
-    foreach (const QString &event, data->events())
+    const QStringList events = data->events();
+    for (const QString &event : events)
         m_eventCombo->addItem(ParseData::prettyStringForEvent(event));
 }
 
@@ -848,7 +849,7 @@ void CallgrindToolPrivate::editorOpened(IEditor *editor)
 void CallgrindToolPrivate::requestContextMenu(TextEditorWidget *widget, int line, QMenu *menu)
 {
     // Find callgrind text mark that corresponds to this editor's file and line number
-    foreach (CallgrindTextMark *textMark, m_textMarks) {
+    for (CallgrindTextMark *textMark : qAsConst(m_textMarks)) {
         if (textMark->fileName() == widget->textDocument()->filePath() && textMark->lineNumber() == line) {
             const Function *func = textMark->function();
             QAction *action = menu->addAction(CallgrindTool::tr("Select This Function in the Analyzer Output"));
diff --git a/src/plugins/valgrind/callgrindvisualisation.cpp b/src/plugins/valgrind/callgrindvisualisation.cpp
index 4d829394c5d..e159b153b3b 100644
--- a/src/plugins/valgrind/callgrindvisualisation.cpp
+++ b/src/plugins/valgrind/callgrindvisualisation.cpp
@@ -236,7 +236,8 @@ void Visualization::Private::handleMousePressEvent(QMouseEvent *event,
 {
     // find the first item that accepts mouse presses under the cursor position
     QGraphicsItem *itemAtPos = nullptr;
-    foreach (QGraphicsItem *item, q->items(event->pos())) {
+    const QList<QGraphicsItem *>items = q->items(event->pos());
+    for (QGraphicsItem *item : items) {
         if (!(item->acceptedMouseButtons() & event->button()))
             continue;
 
@@ -291,7 +292,8 @@ const Function *Visualization::functionForItem(QGraphicsItem *item) const
 
 QGraphicsItem *Visualization::itemForFunction(const Function *function) const
 {
-    foreach (QGraphicsItem *item, items()) {
+    const QList<QGraphicsItem *> itemList = items();
+    for (QGraphicsItem *item : itemList) {
         if (functionForItem(item) == function)
             return item;
     }
diff --git a/src/plugins/valgrind/memcheckerrorview.cpp b/src/plugins/valgrind/memcheckerrorview.cpp
index 19e3199b72b..951136f8c6e 100644
--- a/src/plugins/valgrind/memcheckerrorview.cpp
+++ b/src/plugins/valgrind/memcheckerrorview.cpp
@@ -100,7 +100,7 @@ QList<QAction *> MemcheckErrorView::customActions() const
     QTC_ASSERT(!indizes.isEmpty(), return actions);
 
     bool hasErrors = false;
-    foreach (const QModelIndex &index, indizes) {
+    for (const QModelIndex &index : indizes) {
         Error error = model()->data(index, ErrorListModel::ErrorRole).value<Error>();
         if (!error.suppression().isNull()) {
             hasErrors = true;
diff --git a/src/plugins/valgrind/memchecktool.cpp b/src/plugins/valgrind/memchecktool.cpp
index 1e093b354a4..99cbf51d72e 100644
--- a/src/plugins/valgrind/memchecktool.cpp
+++ b/src/plugins/valgrind/memchecktool.cpp
@@ -284,7 +284,7 @@ static ErrorListModel::RelevantFrameFinder makeFrameFinder(const QStringList &pr
 
         //find the first frame belonging to the project
         if (!projectFiles.isEmpty()) {
-            foreach (const Frame &frame, frames) {
+            for (const Frame &frame : frames) {
                 if (frame.directory().isEmpty() || frame.fileName().isEmpty())
                     continue;
 
@@ -296,7 +296,7 @@ static ErrorListModel::RelevantFrameFinder makeFrameFinder(const QStringList &pr
         }
 
         //if no frame belonging to the project was found, return the first one that is not malloc/new
-        foreach (const Frame &frame, frames) {
+        for (const Frame &frame : frames) {
             if (!frame.functionName().isEmpty() && frame.functionName() != "malloc"
                 && !frame.functionName().startsWith("operator new("))
             {
@@ -365,9 +365,10 @@ bool MemcheckErrorFilterProxyModel::filterAcceptsRow(int sourceRow, const QModel
         QSet<QString> validFolders;
         for (Project *project : SessionManager::projects()) {
             validFolders << project->projectDirectory().toString();
-            foreach (Target *target, project->targets()) {
-                foreach (const DeployableFile &file,
-                         target->deploymentData().allFiles()) {
+            const QList<Target *> targets = project->targets();
+            for (const Target *target : targets) {
+                const QList<DeployableFile> files = target->deploymentData().allFiles();
+                for (const DeployableFile &file : files) {
                     if (file.isExecutable())
                         validFolders << file.remoteDirectory();
                 }
@@ -383,7 +384,7 @@ bool MemcheckErrorFilterProxyModel::filterAcceptsRow(int sourceRow, const QModel
         bool inProject = false;
         for (int i = 0; i < framesToLookAt; ++i) {
             const Frame &frame = frames.at(i);
-            foreach (const QString &folder, validFolders) {
+            for (const QString &folder : qAsConst(validFolders)) {
                 if (frame.directory().startsWith(folder)) {
                     inProject = true;
                     break;
@@ -633,7 +634,7 @@ MemcheckToolPrivate::MemcheckToolPrivate()
     filterButton->setProperty("noArrow", true);
 
     m_filterMenu = new QMenu(filterButton);
-    foreach (QAction *filterAction, m_errorFilterActions)
+    for (QAction *filterAction : qAsConst(m_errorFilterActions))
         m_filterMenu->addAction(filterAction);
     m_filterMenu->addSeparator();
     m_filterMenu->addAction(m_filterProjectAction);
@@ -934,9 +935,10 @@ void MemcheckToolPrivate::settingsDestroyed(QObject *settings)
 
 void MemcheckToolPrivate::updateFromSettings()
 {
-    foreach (QAction *action, m_errorFilterActions) {
+    for (QAction *action : qAsConst(m_errorFilterActions)) {
         bool contained = true;
-        foreach (const QVariant &v, action->data().toList()) {
+        const QList<QVariant> actions = action->data().toList();
+        for (const QVariant &v : actions) {
             bool ok;
             int kind = v.toInt(&ok);
             if (ok && !m_settings->visibleErrorKinds.value().contains(kind))
@@ -1119,10 +1121,11 @@ void MemcheckToolPrivate::updateErrorFilter()
     m_settings->filterExternalIssues.setValue(!m_filterProjectAction->isChecked());
 
     QList<int> errorKinds;
-    foreach (QAction *a, m_errorFilterActions) {
+    for (QAction *a : qAsConst(m_errorFilterActions)) {
         if (!a->isChecked())
             continue;
-        foreach (const QVariant &v, a->data().toList()) {
+        const QList<QVariant> actions = a->data().toList();
+        for (const QVariant &v : actions) {
             bool ok;
             int kind = v.toInt(&ok);
             if (ok)
diff --git a/src/plugins/valgrind/xmlprotocol/error.cpp b/src/plugins/valgrind/xmlprotocol/error.cpp
index efc04f52232..0adf0dbfab8 100644
--- a/src/plugins/valgrind/xmlprotocol/error.cpp
+++ b/src/plugins/valgrind/xmlprotocol/error.cpp
@@ -205,12 +205,13 @@ QString Error::toXml() const
         stream << "  <what>" << d->what << "</what>\n";
     }
 
-    foreach (const Stack &stack, d->stacks) {
+    for (const Stack &stack : qAsConst(d->stacks)) {
         if (!stack.auxWhat().isEmpty())
             stream << "  <auxwhat>" << stack.auxWhat() << "</auxwhat>\n";
         stream << "  <stack>\n";
 
-        foreach (const Frame &frame, stack.frames()) {
+        const QVector<Frame> frames = stack.frames();
+        for (const Frame &frame : frames) {
             stream << "    <frame>\n";
             stream << "      <ip>0x" << QString::number(frame.instructionPointer(), 16) << "</ip>\n";
             if (!frame.object().isEmpty())
diff --git a/src/plugins/valgrind/xmlprotocol/errorlistmodel.cpp b/src/plugins/valgrind/xmlprotocol/errorlistmodel.cpp
index a4d4234d070..7431b0692cd 100644
--- a/src/plugins/valgrind/xmlprotocol/errorlistmodel.cpp
+++ b/src/plugins/valgrind/xmlprotocol/errorlistmodel.cpp
@@ -165,10 +165,12 @@ ErrorItem::ErrorItem(const ErrorListModel *model, const Error &error)
     // just annoy the user.
     // The same goes for the frame level.
     if (m_error.stacks().count() > 1) {
-        foreach (const Stack &s, m_error.stacks())
+        const QVector<Stack> stacks = m_error.stacks();
+        for (const Stack &s : stacks)
             appendChild(new StackItem(s));
     } else if (m_error.stacks().constFirst().frames().count() > 1) {
-        foreach (const Frame &f, m_error.stacks().constFirst().frames())
+        const QVector<Frame> frames = m_error.stacks().constFirst().frames();
+        for (const Frame &f : frames)
             appendChild(new FrameItem(f));
     }
 }
@@ -197,11 +199,13 @@ QVariant ErrorItem::data(int column, int role) const
                << m_model->errorLocation(m_error)
                << "\n";
 
-        foreach (const Stack &stack, m_error.stacks()) {
+        const QVector<Stack> stacks = m_error.stacks();
+        for (const Stack &stack : stacks) {
             if (!stack.auxWhat().isEmpty())
                 stream << stack.auxWhat();
             int i = 1;
-            foreach (const Frame &frame, stack.frames())
+            const QVector<Frame> frames = stack.frames();
+            for (const Frame &frame : frames)
                 stream << "  " << i++ << ": " << makeFrameName(frame, true) << "\n";
         }
 
@@ -229,7 +233,8 @@ QVariant ErrorItem::data(int column, int role) const
 
 StackItem::StackItem(const Stack &stack) : m_stack(stack)
 {
-    foreach (const Frame &f, m_stack.frames())
+    const QVector<Frame> frames = m_stack.frames();
+    for (const Frame &f : frames)
         appendChild(new FrameItem(f));
 }
 
diff --git a/src/plugins/valgrind/xmlprotocol/modelhelpers.cpp b/src/plugins/valgrind/xmlprotocol/modelhelpers.cpp
index 48e0a325771..d2722311871 100644
--- a/src/plugins/valgrind/xmlprotocol/modelhelpers.cpp
+++ b/src/plugins/valgrind/xmlprotocol/modelhelpers.cpp
@@ -64,7 +64,7 @@ QString toolTipForFrame(const Frame &frame)
                    "<style>dt { font-weight:bold; } dd { font-family: monospace; }</style>\n"
                    "</head><body><dl>";
 
-    foreach (const StringPair &pair, lines) {
+    for (const StringPair &pair : qAsConst(lines)) {
         html += "<dt>";
         html += pair.first;
         html += "</dt><dd>";
diff --git a/src/plugins/valgrind/xmlprotocol/suppression.cpp b/src/plugins/valgrind/xmlprotocol/suppression.cpp
index 14ad429416f..0864a2f2f4e 100644
--- a/src/plugins/valgrind/xmlprotocol/suppression.cpp
+++ b/src/plugins/valgrind/xmlprotocol/suppression.cpp
@@ -208,7 +208,7 @@ QString Suppression::toString() const
     stream << "{\n";
     stream << indent << d->name << '\n';
     stream << indent << d->kind << '\n';
-    foreach (const SuppressionFrame &frame, d->frames)
+    for (const SuppressionFrame &frame : qAsConst(d->frames))
         stream << indent << frame.toString() << '\n';
     stream << "}\n";
     return ret;