diff --git a/lld/lib/Driver/InputGraph.cpp b/lld/lib/Driver/InputGraph.cpp
index be7fea0c18cb..3f464618c9bf 100644
--- a/lld/lib/Driver/InputGraph.cpp
+++ b/lld/lib/Driver/InputGraph.cpp
@@ -133,7 +133,7 @@ uint32_t ControlNode::getResolveState() const {
 /// \brief Set the resolve state for the current element
 /// thats processed by the resolver.
 void ControlNode::setResolveState(uint32_t resolveState) {
-  if (_elements.size() == 0)
+  if (_elements.empty())
     return;
   _elements[_currentElementIndex]->setResolveState(resolveState);
 }
@@ -151,7 +151,7 @@ SimpleFileNode::SimpleFileNode(StringRef path, int64_t ordinal)
 /// of the input elements contained in the group.
 ErrorOr<File &> Group::getNextFile() {
   // If there are no elements, move on to the next input element
-  if (_elements.size() == 0)
+  if (_elements.empty())
     return make_error_code(InputGraphError::no_more_files);
 
   for (;;) {
diff --git a/lld/lib/Driver/WinLinkDriver.cpp b/lld/lib/Driver/WinLinkDriver.cpp
index 9f692c1942b5..35cf6dd10d0f 100644
--- a/lld/lib/Driver/WinLinkDriver.cpp
+++ b/lld/lib/Driver/WinLinkDriver.cpp
@@ -911,7 +911,7 @@ WinLinkDriver::parse(int argc, const char *argv[], PECOFFLinkingContext &ctx,
     }
   }
 
-  if (inputElements.size() == 0 && !isReadingDirectiveSection) {
+  if (inputElements.empty() && !isReadingDirectiveSection) {
     diagnostics << "No input files\n";
     return false;
   }
diff --git a/lld/lib/ReaderWriter/ELF/SectionChunks.h b/lld/lib/ReaderWriter/ELF/SectionChunks.h
index 0a0663ba8826..cc0ce1687c2e 100644
--- a/lld/lib/ReaderWriter/ELF/SectionChunks.h
+++ b/lld/lib/ReaderWriter/ELF/SectionChunks.h
@@ -575,8 +575,7 @@ StringTable<ELFT>::StringTable(const ELFLinkingContext &context,
 }
 
 template <class ELFT> uint64_t StringTable<ELFT>::addString(StringRef symname) {
-
-  if (symname.size() == 0)
+  if (symname.empty())
     return 0;
   StringMapTIter stringIter = _stringMap.find(symname);
   if (stringIter == _stringMap.end()) {
diff --git a/lld/lib/ReaderWriter/MachO/StubsPass.hpp b/lld/lib/ReaderWriter/MachO/StubsPass.hpp
index a478b9e9794b..83afd7b1f1a4 100644
--- a/lld/lib/ReaderWriter/MachO/StubsPass.hpp
+++ b/lld/lib/ReaderWriter/MachO/StubsPass.hpp
@@ -123,7 +123,7 @@ public:
 
   virtual void addStubAtoms(MutableFile &mergedFile) {
     // Exit early if no stubs needed.
-    if ( _targetToStub.size() == 0 )
+    if (_targetToStub.empty())
       return;
     // Add all stubs to master file.
     for (auto it : _targetToStub) {
diff --git a/lld/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp b/lld/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp
index 9d7bbca89d6b..40bf988a9873 100644
--- a/lld/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp
+++ b/lld/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp
@@ -666,7 +666,7 @@ private:
       array = array.slice(3);
     }
 
-    if (array.size() == 0)
+    if (array.empty())
       return "";
 
     size_t len = 0;