[GCOV] Skip artificial functions from being emitted

This is a patch to support  D66328, which was reverted until this lands.

Enable a compiler-rt test that used to fail previously with D66328.

Differential Revision: https://reviews.llvm.org/D67283

1 files changed, 4 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp b/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
index bda32878400..bf3e4ed3e31 100644
--- a/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
+++ b/llvm/lib/Transforms/Instrumentation/GCOVProfiling.cpp
@@ -714,7 +714,10 @@ void GCOVProfiler::emitProfileNotes() {
       // to have a counter for the function definition.
       uint32_t Line = SP->getLine();
       auto Filename = getFilename(SP);
-      Func.getBlock(&EntryBlock).getFile(Filename).addLine(Line);
+
+      // Artificial functions such as global initializers
+      if (!SP->isArtificial())
+        Func.getBlock(&EntryBlock).getFile(Filename).addLine(Line);
 
       for (auto &BB : F) {
         GCOVBlock &Block = Func.getBlock(&BB);