Merge branch 'maint'

* maint: beam_ssa_type: Fix environment check in local fun call optimization
erlang · Mar 28, 2024 · 447964c · 447964c
2 parents ab43b55 + 1d1f3ad
commit 447964c
Show file tree

Hide file tree

Showing 2 changed files with 10 additions and 4 deletions.
diff --git a/lib/compiler/src/beam_ssa_type.erl b/lib/compiler/src/beam_ssa_type.erl
@@ -329,7 +329,7 @@ sig_fun_call(I0, Args, Ts, Ds, Fdb, Sub, State0) ->
             CallArgs = CallArgs0 ++ simplify_args(Env, Ts, Sub),
             I = I0#b_set{args=[Callee | CallArgs]},
             sig_local_call(I, Callee, CallArgs, Ts, Fdb, State0);
-        {#t_fun{target={Name,Arity}}, _} ->
+        {#t_fun{arity=Arity,target={Name,Arity}}, _} ->
             %% When a fun lacks free variables, we can make a direct call even
             %% when we don't know where it was defined.
             Callee = #b_local{name=#b_literal{val=Name},
@@ -683,7 +683,7 @@ opt_fun_call(#b_set{dst=Dst}=I0, [Fun | CallArgs0], Ts, Ds, Fdb, Sub, Meta) ->
             CallArgs = CallArgs0 ++ simplify_args(Env, Ts, Sub),
             I = I0#b_set{args=[Callee | CallArgs]},
             opt_local_call(I, Callee, CallArgs, Dst, Ts, Fdb, Meta);
-        {#t_fun{target={Name,Arity}}, _} ->
+        {#t_fun{arity=Arity,target={Name,Arity}}, _} ->
             %% When a fun lacks free variables, we can make a direct call even
             %% when we don't know where it was defined.
             Callee = #b_local{name=#b_literal{val=Name},

diff --git a/lib/compiler/test/fun_SUITE.erl b/lib/compiler/test/fun_SUITE.erl
@@ -24,7 +24,7 @@
 	 test1/1,overwritten_fun/1,otp_7202/1,bif_fun/1,
          external/1,eep37/1,badarity/1,badfun/1,
          duplicated_fun/1,unused_fun/1,parallel_scopes/1,
-         coverage/1]).
+         coverage/1,leaky_environment/1]).
 
 %% Internal exports.
 -export([call_me/1,dup1/0,dup2/0]).
@@ -41,7 +41,7 @@ groups() ->
       [test1,overwritten_fun,otp_7202,bif_fun,external,eep37,
        badarity,badfun,duplicated_fun,unused_fun,
        parallel_scopes,
-       coverage]}].
+       coverage,leaky_environment]}].
 
 init_per_suite(Config) ->
     test_lib:recompile(?MODULE),
@@ -590,5 +590,11 @@ coverage_2(List) ->
 coverage_3({[], A}) ->
     {id(42), fun() -> A end}.
 
+leaky_environment(_Config) ->
+    G = fun(X, Y) -> X + Y end,
+    F = fun(A) -> G(A, 0) end,
+    {'EXIT', {{badarity, {F, [1, flurb]}}, _}} = catch F(1, flurb),
+    ok.
+
 id(I) ->
     I.