From 6eac68854c414285b7a99f27196bbbfa7969b295 Mon Sep 17 00:00:00 2001 From: Hans Bolinder Date: Fri, 27 Jun 2014 16:08:46 +0200 Subject: dialyzer, hipe: Fix a bug concerning is_record/2,3 Also fixed some cases where Dialyzer could crash due to reaching system limits. --- .../opaque_SUITE_data/src/opaque/opaque_bug5.erl | 10 ++++++++++ lib/dialyzer/test/small_SUITE_data/src/limit.erl | 20 ++++++++++++++++++++ 2 files changed, 30 insertions(+) create mode 100644 lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl create mode 100644 lib/dialyzer/test/small_SUITE_data/src/limit.erl (limited to 'lib/dialyzer/test') diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl b/lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl new file mode 100644 index 0000000000..28d739de8e --- /dev/null +++ b/lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl @@ -0,0 +1,10 @@ +%% Second arg of is_record call wasn't checked properly + +-module(opaque_bug5). + +-export([b/0]). + +b() -> + is_record(id({a}), id(a)). + +id(I) -> I. diff --git a/lib/dialyzer/test/small_SUITE_data/src/limit.erl b/lib/dialyzer/test/small_SUITE_data/src/limit.erl new file mode 100644 index 0000000000..97ee585b77 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/limit.erl @@ -0,0 +1,20 @@ +%% Misc cases where Dialyzer would fail with system_limit or crash + +-module(limit). + +-export([tu/0, big/1, b2/0]). + +tu() -> + erlang:make_tuple(1 bsl 24, def, [{5,e},{1,a},{3,c}]). + +big(<>) -> {5,Int}. + +b2() -> + Maxbig = maxbig(), + _ = bnot Maxbig, + ok. + +maxbig() -> + %% We assume that the maximum arity is (1 bsl 19) - 1. + Ws = erlang:system_info(wordsize), + (((1 bsl ((16777184 * (Ws div 4))-1)) - 1) bsl 1) + 1. -- cgit v1.2.3