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Use the counters module to speed up cover
OTP-15575
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* maint:
Optimize calendar:gregorian_days_to_date/1
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* FNickRU/stdlib/optimize_calendar/PR-2121/OTP-15572:
Optimize calendar:gregorian_days_to_date/1
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* siri/observer/crash-toggle-log-view/OTP-15553:
[observer] Don't crash on Log > Toggle Log View
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This change saves about about a minute when running the
cover-compiled compiler tests.
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Use `counters:add/3` instead of `ets:update_counter/3`
for counting the number of times a line is executed.
By default, the reference to the counter array for each module will be
stored in a persistent term and retrieved every time a counter is
updated. This makes the compiler test suite with coverage enabled run
*almost* twice as fast (on my computer, in about 6 minutes down from
more than 11 minutes).
To get even more speed, the new `cover:local_only/0` function can be
called to put cover into a mode where the cover-compiled code can only
be run on the local node. In this mode, the cover-compiled modules in
a more efficient way by compiling the counter reference into the
code. This shaves off about one more minute, making the compiler test
suite with coverage enabled run *more than* twice as fast (in about 5
minutes on my computer).
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* sverker/enif_select-faulty-assert:
erts: Fix faulty debug assert in enif_select
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* sverker/map-from-ks-vs-bug/OTP-15567:
erts: Add test for bug in enif_make_maps_from_arrays
erts: Fix bug in erts_map_from_ks_and_vs
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* siri/ct_netconfc/edit-config-list/OTP-15298:
[ct] Allow ct_netconfc:edit_config/3,4,5 to take a list of XML elements
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* siri/ct_telnet/div-improvements/OTP-15229:
[ct] Add option {newline,string()} to ct_telnet:cmd and ct_telnet:send
[ct] Improve error handling of bad regular expressions to ct_telnet
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reltool: Add load_dot_erlang rel option
OTP-15571
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* hans/crypto/disable_blake2_libressl/OTP-15564:
crypto: Disable blake2 in LibreSSL (not supported)
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* maint:
dialyzer: Fix a bug affecting keyfind/keysearch/keymember
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* dialyzer/hasse/fix_bug_erl_bif_types/OTP-15570:
dialyzer: Fix a bug affecting keyfind/keysearch/keymember
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beam_ssa_type: Propagate the 'none' type from calls
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Consider this pseudo code:
f(...) ->
Val = case Expr of
... ->
... ;
... ->
... ;
... ->
my_abort(something_went_wrong)
end,
%% Here follows code that uses Val.
.
.
.
my_abort(Reason) ->
throw({error,Reason}).
The first two clauses in the case will probably provide some
information about the type of the variable `Var`, information
that would be useful for optimizing the code that follows the
case.
However, the third clause would ruin everything. The call
to `my_abort/1` could return anything, and thus `Val` could
also have any type.
294d66a295f6 introduced module-level type analysis, which will in
general keep track of the return type of a local function
call. However, it does not improve the optimization for this specific
function. When a function never returns, that is, when its type is
`none`, it does not propagate the `none` type, but instead pretends
that the return type is `any`.
This commit extends the handling of functions that don't return to
properly handle the `none` type. Any instructions that directly
follows the function that does not return will be discarded, and the
call will be rewritten to a tail-recursive call.
For this specific example, it means that the type for `Val` deduced
from the first two clauses will be retained and can be used for
optimizing the code after the case.
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Optimize ssa_opt_sink for huge functions
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This sleeping bug was introduced in OTP 19.1
but not possible not provoke until OTP 21.0
when enif_make_map_from_arrays was introduced.
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* maint:
Introduce ei_init()
Fix bug in ei_accept_tmo
Fix build of erl_interface on BSD
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* rickard/ei-ext-maint/OTP-15442:
Introduce ei_init()
Fix bug in ei_accept_tmo
Fix build of erl_interface on BSD
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Add hash function BLAKE2 to crypto:hash/hmac
OTP-15564
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* sverker/fix-compile-warning:
erts: Fix compiler warning for IS_SSMALL
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Add enif_make_monitor_term
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The ssa_opt_sink optimization of beam_ssa_opt could get very slow
for certain huge functions. 9a190cae9bd7 partly addressed this issue
by terminating the optimization early if there happened to be no
get_tuple_element instructions at all in the function.
This commit addresses the issue more directly by making the dominator
calculation in beam_ssa:dominators/1 more efficient. The same
algorithm as before is used, but it is implemented in a more efficient
way based on the ideas in "A Simple, Fast Dominance Algorithm"
(http://www.hipersoft.rice.edu/grads/publications/dom14.pdf).
As well as being more efficient, the new implementation also gives
an explicit representation of the dominator tree, which makes it
possible to simplify and optimize the ssa_opt_sink optimization.
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Keep track of tuple elements in type optimization pass
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* rickard/ei-ext/OTP-15442:
Introduce ei_init()
Fix bug in ei_accept_tmo
Fix build of erl_interface on BSD
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You previously had to initialize ei via erl_init() which
implied that you were forced to link against the erl_interface
even when not using it (besides initializing ei).
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Conflicts:
lib/ssl/doc/src/ssl.xml
lib/ssl/src/ssl.erl
lib/ssl/src/ssl_cipher_format.erl
lib/ssl/src/tls_handshake.erl
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* ingela/ssl/alert-return/OTP-15423:
ssl: Use specs to generate type documentation
ssl: Enhance error handling
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* ingela/ssl/dtls-match-error/OTP-15561:
ssl: Remove unintended match
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* lukas/erts/cerl-etp-rr-support:
erts: Expand rr support in cerl and etp
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Prior to 294d66a295f6c2101fe3c2da630979ad4e736c08 there wasn't much
point to keeping track of tuple element types; they were only known
when we had inserted or extracted values from a tuple, and in
neither case was it likely that we'd extract the same values again.
It makes a lot more sense to do so now that type optimizations are
applied across functions; if we return a tuple it's very likely
that its elements will be extracted soon after, and knowing their
types lets us eliminate more type checks.
Co-authored-by: Björn Gustavsson <[email protected]>
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* maint:
Updated OTP version
Prepare release
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* maint-21:
Updated OTP version
Prepare release
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