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The text mentions any changes that occurred in R7A and later.
Change that to only mention changes that occurred after R12B.
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Reported-by: Loïc Hoguin
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* dgud/emacs-config:
Do not force space/tab indent-tabs-mode for all file types
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Remove obsolete information from the Efficiency Guide
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Could not edit makefiles.
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* siri/ct/add_app_tests:
Add ct_default_gl to common_test.app.src
[ct] Add tests for .app and .appup files
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File annotations {file, File} in Core Erlang code is replaced by
{file, FakeFile}, where FakeFile is "0", "1", ..., in order to save
memory. When a warning message is created, FakeFile is translated to
the original File (a bit awkward but easy to do).
The Core code stored in ETS tables needs less space, but more
important is that a less heap memory is used in the dataflow,
warnings, and typesig phases, allowing more parallelism.
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The translation from forms to types is done in a separate process
in an attempt to reduce peak memory usage.
Expect further optimizations as it is probably not feasible
in the long run to keep all type information on the heap.
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Some SCC info is no longer cached. It reduces the peak memory
consumption of workers during the typesig phase, and seems to cost
very little time.
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The cache used for speeding up the translation from forms to types is
no longer global, but reset per module. The peak memory consumption
is reduced, and the added time seems to be small.
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Using erlang:system_info(schedulers_online) for determining
parallelism is recommended by OTP experts. It takes care of "+S 4:1"
and simultaneous loading of HiPE code.
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Memory consumption is reduced during the compilation phase by keeping
the Core parse tree shared. In particular the file annotation takes a
lot of memory when not shared.
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The condensed graph of SCCs occupies less ETS memory. A table
translating to and from SCC to a unique integer is introduced.
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By not using ETS when calculating the condensation of graphs, peak
heap memory consumption is reduced.
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The mini PLT is extended to hold all data of the full PLT, and the
full PLT is restored when needed (for storing the PLT on file).
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* maint:
dialyzer: Fix check of parameterized opaque types
Conflicts:
lib/hipe/cerl/erl_types.erl
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* hasse/dialyzer/fix_opaque_parms/OTP-14130:
dialyzer: Fix check of parameterized opaque types
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The signatures of erl_parse:anno_to_term/1 and
erl_parse:anno_from_term/1 are corrected. Using these function no
longer results in false Dialyzer warnings.
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Also don't say that there are no plans to make sharing-preserving
copying default; it has been seriously suggested.
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Shorten the text by removing superfluous details about how
binary handling was different in R11B.
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"Tuples funs" was removed a long time ago. There is no need to
even mention them.
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Code with huge literal case expressions such as the following would
compile very slowly:
case "Very long literal string (thousands of characters)..." of
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end.
The reason is that in the case optimization each character in the
string would be handled individually. Fix this bug by handling
literals all at once.
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* maint:
stdlib: Allow characters in types and constant patterns
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* hasse/stdlib/char_as_integer/ERL-313/OTP-14103:
stdlib: Allow characters in types and constant patterns
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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.
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* sverker/delete_module-error-msg:
erts: Fix error report message for erlang:delete/1
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* egil/stdlib/gen_event-start-2/OTP-14123:
stdlib: Document gen_event start options
stdlib: Test gen_event options
stdlib: Refactor gen_event_SUITE
stdlib: Remove whitespace error in gen_event_SUITE
stdlib: Add start options to gen_event
stdlib: Remove whitespace errors in gen_event
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