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| author | Hans Bolinder <[email protected]> | 2014-06-27 16:08:46 +0200 |
|---|---|---|
| committer | Hans Bolinder <[email protected]> | 2014-08-21 09:22:08 +0200 |
| commit | 6eac68854c414285b7a99f27196bbbfa7969b295 (patch) | |
| tree | 11300443a664f962db49adbc1123dd9d69a50e49 /lib/hipe | |
| parent | daed987f7ebae3fc8f969b4f55f225837267411b (diff) | |
| download | otp-6eac68854c414285b7a99f27196bbbfa7969b295.tar.gz otp-6eac68854c414285b7a99f27196bbbfa7969b295.tar.bz2 otp-6eac68854c414285b7a99f27196bbbfa7969b295.zip | |
dialyzer, hipe: Fix a bug concerning is_record/2,3
Also fixed some cases where Dialyzer could crash due to reaching
system limits.
Diffstat (limited to 'lib/hipe')
| -rw-r--r-- | lib/hipe/cerl/erl_bif_types.erl | 20 | ||||
| -rw-r--r-- | lib/hipe/cerl/erl_types.erl | 4 |
2 files changed, 20 insertions, 4 deletions
diff --git a/lib/hipe/cerl/erl_bif_types.erl b/lib/hipe/cerl/erl_bif_types.erl index a460f16272..74e93bf098 100644 --- a/lib/hipe/cerl/erl_bif_types.erl +++ b/lib/hipe/cerl/erl_bif_types.erl @@ -2,7 +2,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2003-2013. All Rights Reserved. +%% Copyright Ericsson AB 2003-2014. 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 @@ -1891,7 +1891,11 @@ infinity_add(neg_inf, _Number) -> neg_inf; infinity_add(_Number, pos_inf) -> pos_inf; infinity_add(_Number, neg_inf) -> neg_inf; infinity_add(Number1, Number2) when is_integer(Number1), is_integer(Number2) -> - Number1 + Number2. + try Number1 + Number2 + catch + error:system_limit when Number1 < 0 -> neg_inf; + error:system_limit -> pos_inf + end. infinity_mult(neg_inf, Number) -> Greater = infinity_geq(Number, 0), @@ -1902,7 +1906,13 @@ infinity_mult(pos_inf, Number) -> infinity_inv(infinity_mult(neg_inf, Number)); infinity_mult(Number, pos_inf) -> infinity_inv(infinity_mult(neg_inf, Number)); infinity_mult(Number, neg_inf) -> infinity_mult(neg_inf, Number); infinity_mult(Number1, Number2) when is_integer(Number1), is_integer(Number2)-> - Number1 * Number2. + try Number1 * Number2 + catch + error:system_limit -> + if (Number1 >= 0) =:= (Number2 >= 0) -> pos_inf; + true -> neg_inf + end + end. width({Min, Max}) -> infinity_max([width(Min), width(Max)]); width(pos_inf) -> pos_inf; @@ -2633,7 +2643,9 @@ opaque_args(M, F, A, Xs, Opaques) -> true -> case t_tuple_subtypes(X, Opaques) of unknown -> false; - List when length(List) >= 1 -> opaque_recargs(List, Y, Opaques) + List when length(List) >= 1 -> + (t_is_atom(Y, Opaques) andalso + opaque_recargs(List, Y, Opaques)) end; false -> t_has_opaque_subtype(X, Opaques) end]; diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl index 0927c17b6b..4b2bec5fa8 100644 --- a/lib/hipe/cerl/erl_types.erl +++ b/lib/hipe/cerl/erl_types.erl @@ -262,6 +262,8 @@ -define(TAG_IMMED1_SIZE, 4). -define(BITS, (erlang:system_info(wordsize) * 8) - ?TAG_IMMED1_SIZE). +-define(MAX_TUPLE_SIZE, (1 bsl 10)). + %%----------------------------------------------------------------------------- %% Type tags and qualifiers %% @@ -1770,6 +1772,8 @@ t_tuple() -> -spec t_tuple(non_neg_integer() | [erl_type()]) -> erl_type(). +t_tuple(N) when is_integer(N), N > ?MAX_TUPLE_SIZE -> + t_tuple(); t_tuple(N) when is_integer(N) -> ?tuple(lists:duplicate(N, ?any), N, ?any); t_tuple(List) -> |