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2018-01-17Merge branch 'maint'Björn Gustavsson
* maint: asn1_SUITE: Fix failure in xref_export_all/1
2018-01-17asn1_SUITE: Fix failure in xref_export_all/1Björn Gustavsson
The variable 'S' was used twice. If the test case failed because there were unused functions in asn1_SUITE, there would be an ugly badmatch exception instead of the intended nice error message.
2018-01-17Merge branch 'maint'Lukas Larsson
2018-01-17Merge pull request #1686 from angelhof/documentation_broken_link_fixLukas Larsson
Fix a broken erlang:trace/3 link in doc
2018-01-17Fix a broken erlang:trace/3 link in docKonstantinos Kallas
2018-01-16Merge branch 'sverker/build-proc-bin'Sverker Eriksson
2018-01-16Merge branch 'ingela/ssl/remove-rsa-keyexchange-from-default/OTP-14769'Ingela Anderton Andin
* ingela/ssl/remove-rsa-keyexchange-from-default/OTP-14769: ssl: RSA key exchange is considered broken do not support by default
2018-01-16ssl: RSA key exchange is considered broken do not support by defaultIngela Anderton Andin
2018-01-16Merge branch 'hasse/stdlib/limit_gen_bench'Hans Bolinder
* hasse/stdlib/limit_gen_bench: stdlib: Spend less time in gen_server benchmarks
2018-01-16Merge branch 'maint'Hans Bolinder
* maint: stdlib: Handle Unicode when formatting stacktraces
2018-01-16Merge branch 'hasse/stdlib/unicode_stacktrace/OTP-14847/ERL-553' into maintHans Bolinder
* hasse/stdlib/unicode_stacktrace/OTP-14847/ERL-553: stdlib: Handle Unicode when formatting stacktraces
2018-01-15Merge branch 'maint'Sverker Eriksson
2018-01-15Merge branch 'sverker/cuddle-big-bin-tests' into maintSverker Eriksson
2018-01-15Merge branch 'sverker/term_to_binary-spec/ERL-548/OTP-14876' into maintSverker Eriksson
2018-01-15Merge branch 'sverker/ic-test-cuddle' into maintSverker Eriksson
2018-01-15Merge branch 'bjorn/compiler/cuddle-with-tests'Björn Gustavsson
* bjorn/compiler/cuddle-with-tests: beam_match_SUITE: Eliminate warnings for unused variables bs_match_SUITE: Add tests case written when walking into a dead end
2018-01-15Merge branch 'maint'Hans Bolinder
* maint: stdlib: Correct a filelib test case stdlib: Let filelib:find_source() search subdirs
2018-01-15Merge branch 'hasse/stdlib/find_src/OTP-14832/ERL-527' into maintHans Bolinder
* hasse/stdlib/find_src/OTP-14832/ERL-527: stdlib: Correct a filelib test case stdlib: Let filelib:find_source() search subdirs
2018-01-15stdlib: Spend less time in gen_server benchmarksHans Bolinder
Limit the time used for the benchmarks introduced in b8f16f0.
2018-01-15Merge branch 'maint'Ingela Anderton Andin
* maint: ssl: Call clean version function
2018-01-15Merge branch 'ingela/ssl/test-cuddle' into maintIngela Anderton Andin
* ingela/ssl/test-cuddle: ssl: Call clean version function
2018-01-15ssl: Call clean version functionIngela Anderton Andin
Make sure tests are run with intended version settings.
2018-01-15stdlib: Handle Unicode when formatting stacktracesHans Bolinder
See also ERL-553 and ERL-544 (commit c3ddb0f).
2018-01-15Merge branch 'maint'John Högberg
2018-01-15Merge branch ↵John Högberg
'john/runtime_tools/reduce-sysinfo-to_file-memory-use/OTP-14816' into maint
2018-01-12Merge branch 'maint'Hans Nilsson
* maint: crypto: Disable RSA sslv23 padding for LibreSSL >= 2.6.1
2018-01-12Merge branch 'hans/crypto/no_rsa_pad_sym/ERL-546/OTP-14873' into maintHans Nilsson
* hans/crypto/no_rsa_pad_sym/ERL-546/OTP-14873: crypto: Disable RSA sslv23 padding for LibreSSL >= 2.6.1
2018-01-12Merge branch 'maint'Siri Hansen
Conflicts: lib/observer/src/crashdump_viewer.erl
2018-01-12crypto: Disable RSA sslv23 padding for LibreSSL >= 2.6.1Hans Nilsson
Not supported in newer LibreSSL.
2018-01-12beam_match_SUITE: Eliminate warnings for unused variablesBjörn Gustavsson
2018-01-12bs_match_SUITE: Add tests case written when walking into a dead endBjörn Gustavsson
Add some tests cases written when attempting some new optimizations that turned out to be unsafe.
2018-01-12Merge branch 'siri/cdv/many-links/OTP-14725' into maintSiri Hansen
* siri/cdv/many-links/OTP-14725: [observer] Improve performance for many links or monitors
2018-01-12Merge pull request #1645 from Zorbash/document-inet-iRaimo Niskanen
OTP:13713: Add documentation and typespecs for inet:i/0
2018-01-12Merge pull request #1680 from bjorng/bjorn/compiler/beam_blockBjörn Gustavsson
Run beam_block a second time
2018-01-12Merge pull request #1679 from bjorng/bjorn/compiler/sys_core_foldBjörn Gustavsson
Clean up and improve sys_core_fold optimizations
2018-01-12Merge pull request #1663 from bjorng/bjorn/compiler/refactor-annotationsBjörn Gustavsson
Refactor '%live' and '%def' annotations
2018-01-12Merge branch 'maint'Ingela Anderton Andin
2018-01-12Merge branch 'ingela/ssl/rc4-suites/OTP-14871' into maintIngela Anderton Andin
* ingela/ssl/rc4-suites/OTP-14871: ssl: Correct function for listing RC4 suites
2018-01-11Merge branch 'maint'Rickard Green
* maint: Fix encoding of filenames in stacktraces
2018-01-11Merge branch 'rickard/file-encoding-stacktraces/OTP-14847/ERL-544' into maintRickard Green
* rickard/file-encoding-stacktraces/OTP-14847/ERL-544: Fix encoding of filenames in stacktraces
2018-01-11Fix encoding of filenames in stacktracesRickard Green
2018-01-11Merge branch 'maint'Rickard Green
* maint: Do not add -lz to LIBS; keep it in Z_LIB
2018-01-11Merge branch 'rickard/libs-libz/ERL-529/OTP-14840' into maintRickard Green
* rickard/libs-libz/ERL-529/OTP-14840: Do not add -lz to LIBS; keep it in Z_LIB
2018-01-11ssl: Correct function for listing RC4 suitesIngela Anderton Andin
2018-01-11Run beam_block again after other optimizations have been runBjörn Gustavsson
Running beam_block again after the other optimizations have run will give it more opportunities for optimizations. In particular, more allocate_zero/2 instructions can be turned into allocate/2 instructions, and more get_tuple_element/3 instructions can store the retrieved value into the correct register at once. Out of a sample of about 700 modules in OTP, 64 modules were improved by this commit.
2018-01-11beam_bsm: Insert introduced 'move' instructions into blockBjörn Gustavsson
If possible, when adding move/2 instructions, try to insert them into a block. That could potentially allow them to be optimized.
2018-01-11Prepare beam_utils to run again after beam_splitBjörn Gustavsson
beam_utils:live_opt/1 is currently only run early (from beam_block). Prepare it to be run after beam_split when instructions with failure labels have been taken out of blocks. While we are it, also improve check_liveness/3. That will improve the optimizations in beam_record (replacing tuple matching instructions with an is_tagged_tuple instruction).
2018-01-11beam_utils: Correct handling of liveness for select_valBjörn Gustavsson
Since the select_val instruction never transfer directly to the next instruction, the incoming live registers should be ignored. This bug have not caused any problems yet, but it will in the future if we are to run the liveness optimizations again after the optimizations in beam_dead and beam_jump.
2018-01-11beam_block: Reorder element/2 calls in guardsBjörn Gustavsson
In a guard, reorder two consecutive calls to the element/2 BIF that access the same tuple and have the same failure label so that highest index is fetched first. That will allow the second element/2 to be replace with the slightly cheaper get_tuple_element/3 instruction.
2018-01-11Improve code generation for a 'case' with exported variablesBjörn Gustavsson
Consider a 'case' that exports variables and whose return value is ignored: foo(N) -> case N of 1 -> Res = one; 2 -> Res = two end, {ok,Res}. That code will be translated to the following Core Erlang code: 'foo'/1 = fun (_@c0) -> let <_@c5,Res> = case _@c0 of <1> when 'true' -> <'one','one'> <2> when 'true' -> <'two','two'> <_@c3> when 'true' -> primop 'match_fail'({'case_clause',_@c3}) end in {'ok',Res} The exported variables has been rewritten to explicit return values. Note that the original return value from the 'case' is bound to the variable _@c5, which is unused. The corresponding BEAM assembly code looks like this: {function, foo, 1, 2}. {label,1}. {line,[...]}. {func_info,{atom,t},{atom,foo},1}. {label,2}. {test,is_integer,{f,6},[{x,0}]}. {select_val,{x,0},{f,6},{list,[{integer,2},{f,3},{integer,1},{f,4}]}}. {label,3}. {move,{atom,two},{x,1}}. {move,{atom,two},{x,0}}. {jump,{f,5}}. {label,4}. {move,{atom,one},{x,1}}. {move,{atom,one},{x,0}}. {label,5}. {test_heap,3,2}. {put_tuple,2,{x,0}}. {put,{atom,ok}}. {put,{x,1}}. return. {label,6}. {line,[...]}. {case_end,{x,0}}. Because of the test_heap instruction following label 5, the assignment to {x,0} cannot be optimized away by the passes that optimize BEAM assembly code. Refactor the optimizations of 'let' in sys_core_fold to eliminate the unused variable. Thus: 'foo'/1 = fun (_@c0) -> let <Res> = case _@c0 of <1> when 'true' -> 'one' <2> when 'true' -> 'two' <_@c3> when 'true' -> primop 'match_fail'({'case_clause',_@c3}) end in {'ok',Res} The resulting BEAM code will look like: {function, foo, 1, 2}. {label,1}. {line,[...]}. {func_info,{atom,t},{atom,foo},1}. {label,2}. {test,is_integer,{f,6},[{x,0}]}. {select_val,{x,0},{f,6},{list,[{integer,2},{f,3},{integer,1},{f,4}]}}. {label,3}. {move,{atom,two},{x,0}}. {jump,{f,5}}. {label,4}. {move,{atom,one},{x,0}}. {label,5}. {test_heap,3,1}. {put_tuple,2,{x,1}}. {put,{atom,ok}}. {put,{x,0}}. {move,{x,1},{x,0}}. return. {label,6}. {line,[...]}. {case_end,{x,0}}.
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