Coverage Mapping: store function's hash in coverage function records.

The profile data format was recently updated and the new indexing api
requires the code coverage tool to know the function's hash as well
as the function's name to get the execution counts for a function.

Differential Revision: http://reviews.llvm.org/D4995

llvm-svn: 216208

1 files changed, 5 insertions, 3 deletions

diff --git a/clang/lib/CodeGen/CoverageMappingGen.cpp b/clang/lib/CodeGen/CoverageMappingGen.cpp
index 86e2be8fbe2..1bfa7cda76d 100644
--- a/clang/lib/CodeGen/CoverageMappingGen.cpp
+++ b/clang/lib/CodeGen/CoverageMappingGen.cpp
@@ -1094,12 +1094,13 @@ static void dump(llvm::raw_ostream &OS, const CoverageMappingRecord &Function) {
 
 void CoverageMappingModuleGen::addFunctionMappingRecord(
     llvm::GlobalVariable *FunctionName, StringRef FunctionNameValue,
-    const std::string &CoverageMapping) {
+    uint64_t FunctionHash, const std::string &CoverageMapping) {
   llvm::LLVMContext &Ctx = CGM.getLLVMContext();
   auto *Int32Ty = llvm::Type::getInt32Ty(Ctx);
+  auto *Int64Ty = llvm::Type::getInt64Ty(Ctx);
   auto *Int8PtrTy = llvm::Type::getInt8PtrTy(Ctx);
   if (!FunctionRecordTy) {
-    llvm::Type *FunctionRecordTypes[] = {Int8PtrTy, Int32Ty, Int32Ty};
+    llvm::Type *FunctionRecordTypes[] = {Int8PtrTy, Int32Ty, Int32Ty, Int64Ty};
     FunctionRecordTy =
         llvm::StructType::get(Ctx, makeArrayRef(FunctionRecordTypes));
   }
@@ -1107,7 +1108,8 @@ void CoverageMappingModuleGen::addFunctionMappingRecord(
   llvm::Constant *FunctionRecordVals[] = {
       llvm::ConstantExpr::getBitCast(FunctionName, Int8PtrTy),
       llvm::ConstantInt::get(Int32Ty, FunctionNameValue.size()),
-      llvm::ConstantInt::get(Int32Ty, CoverageMapping.size())};
+      llvm::ConstantInt::get(Int32Ty, CoverageMapping.size()),
+      llvm::ConstantInt::get(Int64Ty, FunctionHash)};
   FunctionRecords.push_back(llvm::ConstantStruct::get(
       FunctionRecordTy, makeArrayRef(FunctionRecordVals)));
   CoverageMappings += CoverageMapping;