diff --git a/include/llvm/ProfileData/CoverageMapping.h b/include/llvm/ProfileData/CoverageMapping.h
index 12128d30ecb..39d1ae1bf57 100644
--- a/include/llvm/ProfileData/CoverageMapping.h
+++ b/include/llvm/ProfileData/CoverageMapping.h
@@ -139,10 +139,6 @@ struct CounterMappingRegion {
     /// such as for a macro instantiation or #include file.
     ExpansionRegion,
 
-    /// \brief An EmptyRegion represents a source range without code,
-    /// but with a distinct counter.
-    EmptyRegion,
-
     /// \brief A SkippedRegion represents a source range with code that
     /// was skipped by a preprocessor or similar means.
     SkippedRegion
diff --git a/lib/ProfileData/CoverageMappingReader.cpp b/lib/ProfileData/CoverageMappingReader.cpp
index 72dbb6c7808..21acae1bbdd 100644
--- a/lib/ProfileData/CoverageMappingReader.cpp
+++ b/lib/ProfileData/CoverageMappingReader.cpp
@@ -160,9 +160,6 @@ std::error_code RawCoverageMappingReader::readMappingRegionsSubArray(
         case CounterMappingRegion::CodeRegion:
           // Don't do anything when we have a code region with a zero counter.
           break;
-        case CounterMappingRegion::EmptyRegion:
-          Kind = CounterMappingRegion::EmptyRegion;
-          break;
         case CounterMappingRegion::SkippedRegion:
           Kind = CounterMappingRegion::SkippedRegion;
           break;
diff --git a/lib/ProfileData/CoverageMappingWriter.cpp b/lib/ProfileData/CoverageMappingWriter.cpp
index 0e8c0445f90..f9bbe61fb48 100644
--- a/lib/ProfileData/CoverageMappingWriter.cpp
+++ b/lib/ProfileData/CoverageMappingWriter.cpp
@@ -172,11 +172,6 @@ void CoverageMappingWriter::write(raw_ostream &OS) {
       encodeULEB128(EncodedTagExpandedFileID, OS);
       break;
     }
-    case CounterMappingRegion::EmptyRegion:
-      encodeULEB128(unsigned(I.Kind)
-                        << Counter::EncodingCounterTagAndExpansionRegionTagBits,
-                    OS);
-      break;
     case CounterMappingRegion::SkippedRegion:
       assert(Count.isZero());
       encodeULEB128(unsigned(I.Kind)