Record where the GCOV data files should be placed.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130866 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index 83e927f..22df86a 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -132,6 +132,9 @@
if (getCodeGenOpts().EmitDeclMetadata)
EmitDeclMetadata();
+
+ if (getCodeGenOpts().EmitGcovArcs || getCodeGenOpts().EmitGcovNotes)
+ EmitCoverageDir();
}
void CodeGenModule::UpdateCompletedType(const TagDecl *TD) {
@@ -2216,6 +2219,23 @@
}
}
+void CodeGenModule::EmitCoverageDir() {
+ if (!getCodeGenOpts().CoverageDir.empty()) {
+ if (llvm::NamedMDNode *CUNode = TheModule.getNamedMetadata("llvm.dbg.cu")) {
+ llvm::NamedMDNode *GCov = TheModule.getOrInsertNamedMetadata("llvm.gcov");
+ llvm::LLVMContext &Ctx = TheModule.getContext();
+ llvm::MDString *CoverageDir =
+ llvm::MDString::get(Ctx, getCodeGenOpts().CoverageDir);
+ for (int i = 0, e = CUNode->getNumOperands(); i != e; ++i) {
+ llvm::MDNode *CU = CUNode->getOperand(i);
+ llvm::Value *node[] = { CoverageDir, CU };
+ llvm::MDNode *N = llvm::MDNode::get(Ctx, node);
+ GCov->addOperand(N);
+ }
+ }
+ }
+}
+
///@name Custom Runtime Function Interfaces
///@{
//
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index 99c973c..65ee922 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -735,6 +735,10 @@
void EmitDeclMetadata();
+ /// EmitCoverageDir - Emit the llvm.gcov metadata used to tell LLVM where
+ /// to emit the .gcno and .gcda files in a way that persists in .bc files.
+ void EmitCoverageDir();
+
/// MayDeferGeneration - Determine if the given decl can be emitted
/// lazily; this is only relevant for definitions. The given decl
/// must be either a function or var decl.