diff options
Diffstat (limited to 'lib/compiler/src')
| -rw-r--r-- | lib/compiler/src/beam_a.erl | 2 | ||||
| -rw-r--r-- | lib/compiler/src/beam_utils.erl | 2 | ||||
| -rw-r--r-- | lib/compiler/src/cerl_inline.erl | 39 | ||||
| -rw-r--r-- | lib/compiler/src/v3_core.erl | 2 |
4 files changed, 33 insertions, 12 deletions
diff --git a/lib/compiler/src/beam_a.erl b/lib/compiler/src/beam_a.erl index b348e854a0..c590c5e35b 100644 --- a/lib/compiler/src/beam_a.erl +++ b/lib/compiler/src/beam_a.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2012. All Rights Reserved. +%% Copyright Ericsson AB 2012-2013. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl index e623bcc6a5..e9911fefd9 100644 --- a/lib/compiler/src/beam_utils.erl +++ b/lib/compiler/src/beam_utils.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2012. All Rights Reserved. +%% Copyright Ericsson AB 2007-2013. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in diff --git a/lib/compiler/src/cerl_inline.erl b/lib/compiler/src/cerl_inline.erl index 2e7554c1ff..c6de63c69f 100644 --- a/lib/compiler/src/cerl_inline.erl +++ b/lib/compiler/src/cerl_inline.erl @@ -52,7 +52,7 @@ clause_pats/1, clause_vars/1, concrete/1, cons_hd/1, cons_tl/1, data_arity/1, data_es/1, data_type/1, fun_body/1, fun_vars/1, get_ann/1, int_val/1, - is_c_atom/1, is_c_cons/1, is_c_fun/1, is_c_int/1, + is_c_atom/1, is_c_cons/1, is_c_fname/1, is_c_int/1, is_c_list/1, is_c_seq/1, is_c_tuple/1, is_c_var/1, is_data/1, is_literal/1, is_literal_term/1, let_arg/1, let_body/1, let_vars/1, letrec_body/1, letrec_defs/1, @@ -1578,7 +1578,7 @@ make_let_binding_1(R, E, S) -> %% completely. copy(R, Opnd, E, Ctxt, Env, S) -> - case is_c_var(E) of + case is_c_var(E) andalso not is_c_fname(E) of true -> %% The operand reduces to another variable - get its %% ref-structure and attempt to propagate further. @@ -1628,12 +1628,12 @@ copy_var(R, Ctxt, Env, S) -> end. copy_1(R, Opnd, E, Ctxt, Env, S) -> - %% Fun-expression (lambdas) are a bit special; they are copyable, - %% but should preferably not be duplicated, so they should not be - %% copy propagated except into application contexts, where they can - %% be inlined. - case is_c_fun(E) of - true -> + case type(E) of + 'fun' -> + %% Fun-expression (lambdas) are a bit special; they are copyable, + %% but should preferably not be duplicated, so they should not be + %% copy propagated except into application contexts, where they can + %% be inlined. case Ctxt of #app{} -> %% First test if the operand is "outer-pending"; if @@ -1649,7 +1649,28 @@ copy_1(R, Opnd, E, Ctxt, Env, S) -> _ -> residualize_var(R, S) end; - false -> + var -> + %% Variables at this point only refer to local functions; they are + %% copyable but can't appear in guards, so they should not be + %% copy propagated except into application contexts, where they can + %% be inlined. + case Ctxt of + #app{} -> + %% First test if the operand is "outer-pending"; if + %% so, don't inline. + case st__test_outer_pending(Opnd#opnd.loc, S) of + false -> + R1 = env__get(var_name(E), Opnd#opnd.env), + copy_var(R1, Ctxt, Env, S); + true -> + %% Cyclic reference forced inlining to stop + %% (avoiding infinite unfolding). + residualize_var(R, S) + end; + _ -> + residualize_var(R, S) + end; + _ -> %% We have no other cases to handle here residualize_var(R, S) end. diff --git a/lib/compiler/src/v3_core.erl b/lib/compiler/src/v3_core.erl index f243127b66..1195937d91 100644 --- a/lib/compiler/src/v3_core.erl +++ b/lib/compiler/src/v3_core.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2012. All Rights Reserved. +%% Copyright Ericsson AB 1999-2013. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in |