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-rw-r--r--lib/compiler/src/beam_z.erl6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_z.erl b/lib/compiler/src/beam_z.erl
index 7da6391f1f..7af6f1a74c 100644
--- a/lib/compiler/src/beam_z.erl
+++ b/lib/compiler/src/beam_z.erl
@@ -44,4 +44,10 @@ undo_rename({bs_put,F,{I,Fl},[Src]}) ->
{I,F,Fl,Src};
undo_rename({bs_put,{f,0},{bs_put_string,_,_}=I,[]}) ->
I;
+undo_rename({bif,bs_add=I,F,[Src1,Src2,{integer,U}],Dst}) ->
+ {I,F,[Src1,Src2,U],Dst};
+undo_rename({bif,bs_utf8_size=I,F,[Src],Dst}) ->
+ {I,F,Src,Dst};
+undo_rename({bif,bs_utf16_size=I,F,[Src],Dst}) ->
+ {I,F,Src,Dst};
undo_rename(I) -> I.