From c8c39ea822f67cbf1e83b65914bf699aaf28f17c Mon Sep 17 00:00:00 2001
From: Xinliang David Li <davidxl@google.com>
Date: Wed, 13 Jan 2016 02:46:40 +0000
Subject: Rollback r257551 -- unexpected test failures TBI

llvm-svn: 257564
---
 llvm/lib/ProfileData/CoverageMappingReader.cpp | 30 +++++++++++++++-----------
 1 file changed, 17 insertions(+), 13 deletions(-)

(limited to 'llvm/lib/ProfileData')

diff --git a/llvm/lib/ProfileData/CoverageMappingReader.cpp b/llvm/lib/ProfileData/CoverageMappingReader.cpp
index 89e1cf42c57..af6c616fa03 100644
--- a/llvm/lib/ProfileData/CoverageMappingReader.cpp
+++ b/llvm/lib/ProfileData/CoverageMappingReader.cpp
@@ -319,10 +319,13 @@ static std::error_code readCoverageMappingData(
     if (Buf + sizeof(CovMapHeader) > End)
       return coveragemap_error::malformed;
     auto CovHeader = reinterpret_cast<const coverage::CovMapHeader *>(Buf);
-    uint32_t NRecords = CovHeader->getNRecords<Endian>();
-    uint32_t FilenamesSize = CovHeader->getFilenamesSize<Endian>();
-    uint32_t CoverageSize = CovHeader->getCoverageSize<Endian>();
-    uint32_t Version = CovHeader->getVersion<Endian>();
+    uint32_t NRecords =
+        endian::byte_swap<uint32_t, Endian>(CovHeader->NRecords);
+    uint32_t FilenamesSize =
+        endian::byte_swap<uint32_t, Endian>(CovHeader->FilenamesSize);
+    uint32_t CoverageSize =
+        endian::byte_swap<uint32_t, Endian>(CovHeader->CoverageSize);
+    uint32_t Version = endian::byte_swap<uint32_t, Endian>(CovHeader->Version);
     Buf = reinterpret_cast<const char *>(++CovHeader);
 
     if (Version > coverage::CoverageMappingCurrentVersion)
@@ -357,8 +360,11 @@ static std::error_code readCoverageMappingData(
         reinterpret_cast<const coverage::CovMapFunctionRecord<T> *>(FunBuf);
     while ((const char *)CFR < FunEnd) {
       // Read the function information
-      uint32_t DataSize = CFR->template getDataSize<Endian>();
-      uint64_t FuncHash = CFR->template getFuncHash<Endian>();
+      T NamePtr = endian::byte_swap<T, Endian>(CFR->NamePtr);
+      uint32_t NameSize = endian::byte_swap<uint32_t, Endian>(CFR->NameSize);
+      uint32_t DataSize = endian::byte_swap<uint32_t, Endian>(CFR->DataSize);
+      uint64_t FuncHash = endian::byte_swap<uint64_t, Endian>(CFR->FuncHash);
+      CFR++;
 
       // Now use that to read the coverage data.
       if (CovBuf + DataSize > CovEnd)
@@ -369,18 +375,16 @@ static std::error_code readCoverageMappingData(
       // Ignore this record if we already have a record that points to the same
       // function name. This is useful to ignore the redundant records for the
       // functions with ODR linkage.
-      T NameRef = CFR->template getFuncNameRef<Endian>();
-      if (!UniqueFunctionMappingData.insert(NameRef).second)
+      if (!UniqueFunctionMappingData.insert(NamePtr).second)
         continue;
 
-      StringRef FuncName;
-      if (std::error_code EC =
-              CFR->template getFuncName<Endian>(ProfileNames, FuncName))
-        return EC;
+      // Finally, grab the name and create a record.
+      StringRef FuncName = ProfileNames.getFuncName(NamePtr, NameSize);
+      if (NameSize && FuncName.empty())
+        return coveragemap_error::malformed;
       Records.push_back(BinaryCoverageReader::ProfileMappingRecord(
           CoverageMappingVersion(Version), FuncName, FuncHash, Mapping,
           FilenamesBegin, Filenames.size() - FilenamesBegin));
-      CFR++;
     }
   }
 
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