diff --git a/lldb/bindings/interface/SBCompileUnit.i b/lldb/bindings/interface/SBCompileUnit.i
--- a/lldb/bindings/interface/SBCompileUnit.i
+++ b/lldb/bindings/interface/SBCompileUnit.i
@@ -67,6 +67,9 @@
     lldb::SBLineEntry
     GetLineEntryAtIndex (uint32_t idx) const;
 
+    uint32_t
+    GetIndexForLineEntry (const lldb::SBLineEntry &line_entry, bool exact = false) const;
+
     uint32_t
     FindLineEntryIndex (uint32_t start_idx,
                         uint32_t line,
diff --git a/lldb/include/lldb/API/SBCompileUnit.h b/lldb/include/lldb/API/SBCompileUnit.h
--- a/lldb/include/lldb/API/SBCompileUnit.h
+++ b/lldb/include/lldb/API/SBCompileUnit.h
@@ -34,6 +34,9 @@
 
   lldb::SBLineEntry GetLineEntryAtIndex(uint32_t idx) const;
 
+  uint32_t GetIndexForLineEntry(const lldb::SBLineEntry &line_entry,
+                                bool exact = false) const;
+
   uint32_t FindLineEntryIndex(uint32_t start_idx, uint32_t line,
                               lldb::SBFileSpec *inline_file_spec) const;
 
diff --git a/lldb/source/API/SBCompileUnit.cpp b/lldb/source/API/SBCompileUnit.cpp
--- a/lldb/source/API/SBCompileUnit.cpp
+++ b/lldb/source/API/SBCompileUnit.cpp
@@ -77,6 +77,28 @@
   return sb_line_entry;
 }
 
+uint32_t
+SBCompileUnit::GetIndexForLineEntry(const lldb::SBLineEntry &line_entry,
+                                    bool exact) const {
+  LLDB_INSTRUMENT_VA(this, line_entry, exact);
+
+  uint32_t index = UINT32_MAX;
+  if (m_opaque_ptr && line_entry.IsValid()) {
+
+    LineEntry found_line_entry;
+
+    uint32_t found_index = m_opaque_ptr->FindLineEntry(
+        0, line_entry.GetLine(), line_entry.GetFileSpec().get(), exact,
+        &found_line_entry);
+
+    if (!exact ||
+        (exact && !LineEntry::Compare(line_entry.ref(), found_line_entry)))
+      index = found_index;
+  }
+
+  return index;
+}
+
 uint32_t SBCompileUnit::FindLineEntryIndex(uint32_t start_idx, uint32_t line,
                                            SBFileSpec *inline_file_spec) const {
   LLDB_INSTRUMENT_VA(this, start_idx, line, inline_file_spec);