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2017-09-18Merge branch 'hasse/dialyzer/map_fixes/OTP-14572' into maintHans Bolinder
* hasse/dialyzer/map_fixes/OTP-14572: dialyzer: Adjust a test case dialyzer: Modify handling of singleton map key types Dialyzer: Rewrite one map type invariant Dialyzer: Rewrite some of the docs of map types
2017-09-15dialyzer: Improve check of unknown typesHans Bolinder
The implementation of OTP-14218 (commit 6d3b38a) has a weakness: only a very limited part of the type form is checked. This is now fixed: types not used by specs are checked equally well as types used by specs. The new function erl_types:t_from_form_check_remote() checks usage of remote types. It does not expand used local types, and has (almost) no limits on depth and size.
2017-09-12dialyzer: Modify handling of singleton map key typesHans Bolinder
The test case loop.erl shows that there is a problem with certain singleton key types. Here the internal representation toggles between #{a | b => ...} and #{a => ..., b => ...} The choice is to turn #{a | b => ...} into #{a => ..., b => ...} early (t_from_form()). The aim is to keep as much info as possible (in pairs). However, including complex singleton keys (tuples, maps) in this scheme is potentially too costly, and a bit complicated. So one more choice is made: let atoms and number (and nothing else) be singleton types, and let complex keys go into the default key.
2017-09-12Dialyzer: Rewrite one map type invariantHans Bolinder
2017-09-05hipe: Improve handling of UnicodeHans Bolinder
2017-06-13hipe: Remove 'undefined' from a record field's typeHans Bolinder
2017-06-13hipe: Remove use of 'catch'Hans Bolinder
Substitute try/catch for an obsoletely used catch. Thanks to Kostis for pointing it out.
2017-06-13hipe: Optimize contract decoration somewhatHans Bolinder
2017-06-13hipe: Correct a typespecHans Bolinder
2017-06-09dialyzer: Improve handling of UnicodeHans Bolinder
2017-05-22dialyzer: Warn for bad type variables of parameterized typesHans Bolinder
As of commit 854ee8b (Erlang/OTP 18) warnings about using '_' as type variable in parameterized types have not been output. The code of erl_types:t_var_names() is corrected. The spec is also corrected (thanks to Kostis for pointing out the bug).
2017-04-05erts: Remove hipe_bifs:remove_refs_from/1Sverker Eriksson
which serves no purpose after all the hipe load&purge fixes merged at 32729cab75325de58bf127e6e8836348071b8682
2017-03-27hipe: Fix range analysis of 'rem' operatorMagnus Lång
erl_bif_types contains a fixed and improved copy-paste (obvious from the dead Max_range2_leq_zero if branches) of hipe_icode_range:range_rem/2. For now, delete the dead code and propagate back fixes and improvements to hipe_icode_range.
2017-03-06Merge branch 'maint'Hans Bolinder
* maint: dialyzer: Improve a warning dialyzer: Fix a weird warning dialyzer: Fix an opaque bug dialyzer: Minor fix Conflicts: lib/dialyzer/src/dialyzer_dataflow.erl
2017-02-28dialyzer: Improve a warningHans Bolinder
When a pattern a type do not match, opaque warnings were given precedence before structure mismatches. This is no longer always the case. Mentioned by Nick Marino on erlang-questions.
2017-02-28dialyzer: Fix a weird warningHans Bolinder
2017-02-14Fixed typos in lib/hipeAndrew Dryga
2017-02-03dialyzer: Do not keep the code server's type info on the heapHans Bolinder
The table used during translation of forms to types used to be a dictionary of the type info (-type(), -opaque(), and -record()) for all modules. Now it is reduced to the modules that are needed to handle references to types in other modules. The PLT:s type info is still kept on the heap.
2017-02-03Merge branch 'maint'Hans Bolinder
* maint: dialyzer: Increase time limit for tests dialyzer: Optimize typesig dialyzer: Optimize evaluation of complex code dialyzer: Optimize collection of variables Conflicts: lib/dialyzer/src/dialyzer_typesig.erl
2017-02-01dialyzer: Optimize collection of variablesHans Bolinder
2017-01-12Merge branch 'maint'Hans Bolinder
* maint: dialyzer: Compact 'file' annotations in Core code dialyzer: Try to reduce memory usage dialyzer: Use less memory when translating contracts dialyzer: Use maps instaed of dict dialyzer: Use maps instead of dict for module contracts map dialyzer: Compress a few more ETS tables dialyzer: Optimize memory consumption dialyzer: Reduce memory consumption during 'remote' phase dialyzer: Update code for finding parallelism compiler: Do not spawn process when dialyzing dialyzer: Reduce ETS usage during the typesig phase dialyzer: Optimize graph condensation dialyzer: Do not send full PLTs as messages
2017-01-11dialyzer: Use maps instaed of dictHans Bolinder
2017-01-11Merge branch 'maint'Hans Bolinder
* maint: dialyzer: Fix check of parameterized opaque types Conflicts: lib/hipe/cerl/erl_types.erl
2017-01-11Merge branch 'hasse/dialyzer/fix_opaque_parms/OTP-14130' into maintHans Bolinder
* hasse/dialyzer/fix_opaque_parms/OTP-14130: dialyzer: Fix check of parameterized opaque types
2017-01-10Merge branch 'maint'Hans Bolinder
* maint: stdlib: Allow characters in types and constant patterns
2017-01-10dialyzer: Fix check of parameterized opaque typesHans Bolinder
Two parameters used to be "compatible" if one is a specialization of the other, in the way that the input type of t_limit() is a specialization of the output type. This check is now relaxed: any() in any of the two parameters is compatible with any type of the other parameter. The change is due to bugus warnings. A clause for maps has been added.
2016-12-21stdlib: Allow characters in types and constant patternsHans Bolinder
Characters ($char) can be used in constant pattern expressions. They can also be used in types and contracts.
2016-11-23Update obsolete author e-mailsRichard Carlsson
2016-11-23Correct copyright info on hipe cerl filesRichard Carlsson
2016-11-23Merge branch 'maint'Hans Bolinder
* maint: dialyzer: Substitute 'opacity' for 'opaqueness' dialyzer: Improve a warning message dialyzer: Improve a warning message dialyzer: Correct a warnings message
2016-11-22dialyzer: Substitute 'opacity' for 'opaqueness'Hans Bolinder
Suggested by Kostis.
2016-10-18Change the return type of hipe_bifs:add_ref/2Kostis Sagonas
2016-10-17kernel,hipe: Fix dialyzer warningsSverker Eriksson
2016-10-14Merge branch 'master' into sverker/hipe-code-loadnpurgeSverker Eriksson
Conflicts: erts/emulator/beam/beam_bif_load.c erts/emulator/beam/beam_load.c and added macro DBG_TRACE_MFA_P in beam_load.h
2016-10-14erts: Fix early hipe patch loadingSverker Eriksson
by introducing hipe_bifs:commit_patch_load/1 that creates the HipeModule.
2016-10-14erts: Move new hipe ref and sdesc lists to loader stateSverker Eriksson
2016-10-14Add a loader state for HiPE code loadingMagnus Lång
Just like the BEAM loader state (as returned by erlang:prepare_loading/2), the HiPE loader state is contained in a magic binary. Eventually, we will separate HiPE loading into a prepare and a finalise phase, like the BEAM loader, where the prepare phase will be implemented by hipe_unified_loader and the finalise phase be implemented in C by hipe_load.c and beam_load.c, making prepare side-effect free and finalise atomic. The finalise phase will be exposed through the erlang:finish_loading/1 API, just like the BEAM loader, as this will allow HiPE and BEAM modules to be mixed in the same atomic "commit". The usage of a loader state makes it easier to keep track of all resources allocated during loading, and will not only make it easy to prevent leaks when hipe_unified_loader crashes, but also paves the way for proper, leak-free, unloading of HiPE modules.
2016-10-13Merge branch 'maint'Hans Bolinder
* maint: dialyzer: Fix opaque bug dialyzer: Fix opaque bugs
2016-10-10erts: Remove unused hipe_bifs:code_sizeSverker Eriksson
and hipe_bifs:update_code_size
2016-10-10erts: Improve hipe load/upgrade/purge machinerySverker Eriksson
A step toward better integration of hipe load and purge Highlights: * code_server no longer needs to call hipe_unified_loader:post_beam_load/1 Instead new internal function hipe_redirect_to_module() is called by loading BIFs to patch native call sites if needed. * hipe_purge_module() is called by erts_internal:purge_module/2 to purge any native code. * struct hipe_mfa_info redesigned and only used for exported functions that are called from or implemented by native code. A list of native call sites (struct hipe_ref) are kept for each hipe_mfa_info. * struct hipe_sdesc used by hipe_find_mfa_from_ra() to build native stack traces.
2016-10-06dialyzer: Fix opaque bugHans Bolinder
The "decoration" of opaque types works better than before when opaque types are used by other opaque types.
2016-10-06dialyzer: Fix opaque bugsHans Bolinder
t_from_form() sometimes returned a more general type than it should have done due to a bug in from_form_loop(): it stopped when the limit was exceeded, which could mean a collapsed type. Returning a type with smaller depth should fix this. is_specialization() now handles opaque types before unions, which should fix another problem. The bugs reported by Kostis.
2016-09-12Merge branch 'maint'Hans Bolinder
* maint: erl_bif_types: Properly unopaque maps:merge/2 args
2016-09-12Merge branch 'margnus1/dialyzer/fix_maps_opaque/ERL-249/PR-1161/OTP-13878' ↵Hans Bolinder
into maint * margnus1/dialyzer/fix_maps_opaque/ERL-249/PR-1161/OTP-13878: erl_bif_types: Properly unopaque maps:merge/2 args
2016-09-07erl_bif_types: Properly unopaque maps:merge/2 argsMagnus Lång
erl_bif_types:type/5 was calling erl_types:map_pairwise_merge/3 directly with its (potentially opaque) arguments, causing Dialyzer crashes. Bug (ERL-249) reported and minimised test case provided by Felipe Ripoll.
2016-09-07Merge branch 'maint'Björn-Egil Dahlberg
2016-09-05hipe: Fix erl_types opaque match orderBjörn-Egil Dahlberg
2016-09-05Implement the new ceil/1 and floor/1 guard BIFsBjörn Gustavsson
Implement as ceil/1 and floor/1 as new guard BIFs (essentially part of Erlang language). They are guard BIFs because trunc/1 is a guard BIF. It would be strange to have trunc/1 as a part of the language, but not ceil/1 and floor/1.
2016-08-31dialyzer: Optimize an opaque type caseHans Bolinder
Fix a mistake in commit 85f6fe3b. Instead of using the declared opaque type, the form's type is used in a case where the opaque type is turned into a non-opaque type. The result is more general types (smaller Erlang terms) and faster analyses.
2016-06-28erl_types: Normalise X:=none() pairs in t_map/3Magnus Lång
t_map/3 previously required callers to perform this normalisation, but as t_from_form/5 would sometimes fail to do so, this requirement is relaxed. Bug (ERL-177) reported and shrunk by Luke Imhoff.