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-rw-r--r--compiler/rustc_middle/src/mir/syntax.rs2
-rw-r--r--compiler/rustc_mir_build/src/builder/expr/into.rs2
2 files changed, 3 insertions, 1 deletions
diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs
index 707c8d04d55..ff9d32ebb71 100644
--- a/compiler/rustc_middle/src/mir/syntax.rs
+++ b/compiler/rustc_middle/src/mir/syntax.rs
@@ -652,6 +652,8 @@ pub enum CallSource {
     /// Other types of desugaring that did not come from the HIR, but we don't care about
     /// for diagnostics (yet).
     Misc,
+    /// Use of value, generating a clone function call
+    Use,
     /// Normal function call, no special source
     Normal,
 }
diff --git a/compiler/rustc_mir_build/src/builder/expr/into.rs b/compiler/rustc_mir_build/src/builder/expr/into.rs
index 333e69475c5..a9a07997410 100644
--- a/compiler/rustc_mir_build/src/builder/expr/into.rs
+++ b/compiler/rustc_mir_build/src/builder/expr/into.rs
@@ -328,7 +328,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
                             destination,
                             target: Some(success),
                             unwind: UnwindAction::Unreachable,
-                            call_source: CallSource::Misc,
+                            call_source: CallSource::Use,
                             fn_span: expr_span,
                         },
                     );