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-rw-r--r--gcc/cfglayout.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/cfglayout.h b/gcc/cfglayout.h
index b074f642633..c50072f50bc 100644
--- a/gcc/cfglayout.h
+++ b/gcc/cfglayout.h
@@ -28,3 +28,4 @@ extern bool can_copy_bbs_p (basic_block *, unsigned);
extern void copy_bbs (basic_block *, unsigned, basic_block *,
edge *, unsigned, edge *, struct loop *);
extern bool scan_ahead_for_unlikely_executed_note (rtx);
+extern rtx duplicate_insn_chain (rtx, rtx);