coverage: remove empty mapping regions

This patch removes the empty coverage mapping regions.
Those regions were produced by clang's old mapping region generation
algorithm, but the new algorithm doesn't generate them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213981 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/ProfileData/CoverageMapping.h b/include/llvm/ProfileData/CoverageMapping.h
index 12128d30ecb4eeda47ce378e56e65c502a9c514b..39d1ae1bf577c787f16b07f221d4576a51582ded 100644 (file)
--- 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 72dbb6c7808f70d4b0ee381c5403e09d44a2a57d..21acae1bbdd3aaf993e8003e1e346b2dceb64a77 100644 (file)
--- 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 0e8c0445f906fdd7fccd9ad01e35d92a066a838b..f9bbe61fb48569f999ede7e067cea36e5029a6dc 100644 (file)
--- 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)