ERL-490: Internal consistency check failed (no_bsm_context) during compilation

[OTP-Maintainer]

Original reporter: josevalim
Affected version: OTP-20.1
Fixed in versions: OTP-20.1.1, OTP-20.2
Component: compiler
Migrated from: https://bugs.erlang.org/browse/ERL-490

---

This module:

{code:erlang}
-module(gettext).
-export([lgettext/3]).

lgettext(<<"de">>, <<"default">>, <<"Remove">>) ->
    {ok, <<"a">>};

lgettext(<<"de">>, <<"default">>, <<"Remove from list">>) ->
    {ok, <<"a">>};

lgettext(<<"de">>, <<"default">>, <<"Remove from the list">>) ->
    {ok, <<"a">>};

lgettext(<<"de">>, <<"default">>, <<"Results">>) ->
    {ok, <<"Ergebnisse">>};

lgettext(<<"de">>, <<"default">>, <<"Reservatio">>) ->
    {ok, <<"a">>};

lgettext(<<"de">>, <<"navigation">>, <<"Results">>) ->
    {ok, <<"Ergebnisse">>};

lgettext(<<"de">>, <<"navigation">>, <<"Resources">>) ->
    {ok, <<"Ressourcen">>}.
{code}

fails with:

{code}
gettext: function lgettext/3+60:
  Internal consistency check failed - please report this bug.
  Instruction: {test,bs_match_string,{f,14},[{x,5},24,{string,"lts"}]}
  Error:       {no_bsm_context,{x,5}}:
{code}

On Erlang 20.1. iI works fine on Erlang 20.0.

[OTP-Maintainer]

bjorn said:

https://github.com/erlang/otp/pull/1588