1 files changed, 12 insertions, 6 deletions

diff --git a/src/cfg/cfg-traversal.h b/src/cfg/cfg-traversal.h
index abaf63c5b..79c561de0 100644
--- a/src/cfg/cfg-traversal.h
+++ b/src/cfg/cfg-traversal.h
@@ -79,22 +79,26 @@ struct CFGWalker : public ControlFlowWalker<SubType, VisitorType> {
   }
 
   void link(BasicBlock* from, BasicBlock* to) {
-    if (!from || !to)
+    if (!from || !to) {
       return; // if one of them is not reachable, ignore
+    }
     from->out.push_back(to);
     to->in.push_back(from);
   }
 
   static void doEndBlock(SubType* self, Expression** currp) {
     auto* curr = (*currp)->cast<Block>();
-    if (!curr->name.is())
+    if (!curr->name.is()) {
       return;
+    }
     auto iter = self->branches.find(curr);
-    if (iter == self->branches.end())
+    if (iter == self->branches.end()) {
       return;
+    }
     auto& origins = iter->second;
-    if (origins.size() == 0)
+    if (origins.size() == 0) {
       return;
+    }
     // we have branches to here, so we need a new block
     auto* last = self->currBasicBlock;
     self->startBasicBlock();
@@ -270,8 +274,9 @@ struct CFGWalker : public ControlFlowWalker<SubType, VisitorType> {
       queue.erase(iter);
       alive.insert(curr);
       for (auto* out : curr->out) {
-        if (!alive.count(out))
+        if (!alive.count(out)) {
           queue.insert(out);
+        }
       }
     }
     return alive;
@@ -305,8 +310,9 @@ struct CFGWalker : public ControlFlowWalker<SubType, VisitorType> {
   std::map<BasicBlock*, size_t> debugIds;
 
   void generateDebugIds() {
-    if (debugIds.size() > 0)
+    if (debugIds.size() > 0) {
       return;
+    }
     for (auto& block : basicBlocks) {
       debugIds[block.get()] = debugIds.size();
     }