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* maint:
beam_lib: Remove obsolete module() from the beam() type
hipe: Don't use beam_lib:info/1 with an atom as filename
Honor the max heap size when copying literals after purging
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beam_lib: Clarify the beam() type in code and documentation
OTP-15378
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The type `beam()` in the `beam_lib` module is confusing:
-type beam() :: module() | file:filename() | binary().
It says that the module name can be used to identify the BEAM module
to be accessed, but passing in the module name only works if the BEAM
file is located in the current working directory because the module
is not searched for in the code path.
The reason that it is allowed to pass in the module name as an atom is
for backward compatibility. A long time ago, atoms instead of strings
were used as filenames. For that reason, `filename` and `file` still
accept atoms as filenames (although the practice is frown
upon). `beam_lib` accepts an atom as the filename for the same reason.
To remove the confusion, remove `module()` from the type and the
mention of it in the documentation. Code that uses an atom as a
filename will still work, but Dialyzer will issue a warning.
https://bugs.erlang.org/browse/ERL-696
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* siri/cuddle:
Fix gen_fsm_SUITE:start2/1 to terminate process synchronously
Fix sys_SUITE:special_process/1 to terminating process synchronously
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* dgud/stdlib/unicode-11/OTP-15111:
Update to Unicode-11
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OTP-14731 Implement 'exsss' (Xorshift116**) as new default 'rand' algorithm
The new algorithm is a combination of the Xorshift116 ('exsp') state update and a new scrambler "StarStar" from the 2018 paper "Scrambled Linear Pseudorandom Number Generators" by David Blackman and Sebastiano Vigna. This combination should not have the caveat of weak low bits that the previous default algorithm(s) have had, with the cost of about 10% lower speed.
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# Conflicts:
# erts/emulator/beam/erl_db_tree.c
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* sverker/erts/ets-select_replace-bug/OTP-15346:
erts: Fix bug in ets:select_replace for bound key
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which may cause following calls to ets:next or ets:prev to fail.
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* maint:
compiler: Forward +source flag to epp and fix bug in +deterministic
epp: Allow user to set source name independently of input file name
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* john/compiler/deterministic-paths/OTP-15245/ERL-706:
compiler: Forward +source flag to epp and fix bug in +deterministic
epp: Allow user to set source name independently of input file name
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Note that this does *not* affect -include()'d files or the -file()
directive.
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Document bit_size in match-specs and allow in fun2ms
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* sverker/ets-test-cuddle:
ets_SUITE: Remove more redundant option combos
ets_SUITE: Try avoid redundant option combos
ets_SUITE: Reduce table type combos by removing "void"
ets_SUITE: Optimize throughput_benchmark
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* raimo/test-cuddling:
Decrease probability for failed histogram
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Update input files for the code-generator and tests.
Added emoji-data.txt for new rule with how to handle emoji.
Unicode have simpliefied the rules for emoji grapheme-clusters:
From:
GB10 (E_Base | EBG) Extend* × E_Modifier
GB11 ZWJ × (Glue_After_Zwj | EBG)
To:
GB11 \p{Extended_Pictographic} Extend* ZWJ × \p{Extended_Pictographic}
Update the code generator to handle the new way.
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meta_wb
smp_insert
smp_fixed_delete
smp_select_delete
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It is already allowed in match-specs.
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to reduce test times
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Avoid repeating same tests for [] and [set].
Test case 'default' verifies 'set' to be the default type.
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by populating the table with the help of a random number generator
creating series of unique integers.
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Add a more scalable ETS ordered_set implementation
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OTP-14737
* raimo/stdlib/gen_statem-cleanup:
Improve user's guide on time-outs
Clean up and optimize code and doc
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OTP-14461 - New 'rand' algorithm: Xoroshiro928** also for 'crypto'
Implement a new 'rand' algorithm named 'exro928ss' and a new 'crypto' plugin for 'rand' named 'crypto_aes'.
Both are based on Xoroshiro928** which is derived from Xoroshiro1024** modified to use 58-bit words for performance reasons in the Erlang VM. Xoroshiro1024** has got the Xoroshiro1024 generator and the StarStar scrambler from the 2018 paper "Scrambled Linear Pseudorandom Number Generators" by David Blackman and Sebastiano Vigna.
This generator and scrambler combination shows no systematic weaknesses in standard statistical tests as TestU01(BigCrush) and PractRand, unlike the previously used * and + scramblers in the 'rand' module that exhibit statistical weaknesses for the lowest bits.
The 'crypto' plugin uses AES-256 as scrambler and the Xoroshiro928 as generator, which gives the same very long period and jump functions as for Xoroshiro928**, but a cryptographically secure scrambler gives absolutely no detectable statistical weaknesses regardless of how the generated numbers are used.
The speed of 'exro928ss' is only about 30-50% slower than the default fast 'rand' algorithm, but the state is roughly the double and it produces about 8 times the garbage per iteration.
The speed of 'crypto_aes' is about half (amortized) that of the default fast 'rand' algorithm which is fast and thanks to doing encryption in batches caching the result. Hence the state is much larger.
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* siri/cuddle:
[logger] Skip app level test if app cannot be loaded
Terminate nodes after failed test cases in erl_distribution_SUITE
Skip performance test on build types other than 'opt'
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* maint:
stdlib: Allow lists with binaries in the Format argument
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* hasse/stdlib/binary_in_format/OTP-15304:
stdlib: Allow lists with binaries in the Format argument
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As a consequence of some refactoring (OTP-14983, option
'chars_limit'), the Format argument of io_lib:format() no longer
accepts binaries in lists in Erlang/OTP 21.0.
Note that if Format is not of type io:format(), control sequences in
Format are ignored. This can result in unpredictable behaviour if, for
example, the output of io_lib:format() is used as Format: if the
output happens to be a string(), then control sequences are
interpreted, otherwise not.
A check that Format is of type io:format() will likely be introduced
in Erlang/OTP 22.0. That will probably mean work for some users, but
considering how unpredictable io_lib:format() is, we should try to fix
that.
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