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* bjorn/compiler/beam_dead/OTP-12393:
Update the comments that explain what beam_dead does
Improve optimization of bs_start_match2
Extend count_bits_matched/3 to handle the UTF instructions
misc_SUITE: Cover the exception handling code in beam_dead
Generalize optimizations using shortcut_rel_op/4
beam_dead: Optimize branches from relational conditionals
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While we are, clean up the comments and rearrange the code for
clarity. Also add a test to cover the last uncovered line in
beam_dead.erl.
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Amend the test suite to call beam_dead as originally intended (and not
beam_block), and modify the input data so that the exception will
occur within the try ... catch block in function/2.
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Better optimizations with less code.
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The BEAM compiler translates code such as:
is_hex_digit(D) when $0 =< D, D =< $9 -> true;
is_hex_digit(D) when $a =< D, D =< $z -> true;
is_hex_digit(D) when $A =< D, D =< $Z -> true;
is_hex_digit(_) -> false.
to something like this:
L0: test is_ge L1 {x,0} 48
test is_ge L1 57 {x,0}
move true {x,0}
return.
L1: test is_ge L2 {x,0} 97
test is_ge L2 122 {x,0}
move true {x,0}
return
L2: test is_ge L3 {x,0} 65
test is_ge L3 90 {x,0}
move true {x,0}
return
L3: move false {x,0}
return
We can see that tests will be repeated even if they cannot possibly
succeed. For instance, if we pass in {x,0} equal to 32, the first
test that {x,0} is greater than or equal to 48 at L0 will fail.
The control will transfer to L1, where it will be tested whether
{x,0} is greater than 97. That test will fail and control
will pass to L2, where again the test will fail.
The compiler can do better by short-circuiting repeating tests:
L0: test is_ge L3 {x,0} 48
test is_ge L1 57 {x,0}
move true {x,0}
return.
L1: test is_ge L2 {x,0} 97
test is_ge L3 122 {x,0}
move true {x,0}
return
L2: test is_ge L3 {x,0} 65
test is_ge L3 90 {x,0}
move true {x,0}
return
L3: move false {x,0}
return
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* lemenkov/use_os_getenv_2:
fix missing include
Start using os:getenv/2 fun
Introduce os:getenv/2
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* mikpe/fix-eacces-spelling:
fix eacces spelling
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* arekinath/aes-evp/OTP-12380:
crypto: use EVP for AES-CBC
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* lukas/erts/crashdump_improvements/OTP-12377:
erts: Make main thread safe from pipe closed event
erts: Improve crash dumps
erts: Rename sys_sigset to sys_signal
erts: Introduce thread suspend functions
erts: Remove usage of QUANTIFY signal
erts: Add support for thread names
ets: Increase data available in crash dumps and ets:info
erts: Start compilation of beam_emu earlier
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OTP-12376
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* hans/eldap/bad_return_close/OTP-12349:
eldap: Remove trailing white space.
eldap: Test cases for a few return values (open, close)
eldap: updated eldap:close in tests
eldap: Makes close/1 return as documented.
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* hans/eldap/test_improvents/OTP-12355:
eldap: Corrects SSL over IPv6 test.
eldap: Removes eldap_misc_SUITE that is now included in eldap_basic_SUITE.
eldap: Add encode/decode tests.
eldap: Merge eldap_connections_SUITE into eldab_basic_SUITE
eldap: Adds ssl to connections test suite
eldap: Updates basic test suite - Splits one large testcase into smaller ones. - Makes tests independent - Adds some tests.
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* haguenau/fix-endianness-speling:
Replaced "Endianess" with "Endianness" everywhere
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- Splits one large testcase into smaller ones.
- Makes tests independent
- Adds some tests.
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If a channel is closed by the peer while using a function with call semantics
in ssh_connection.erl return {error, closed}. Document that the functions
can return {error, timeout | closed} and not only ssh_request_status()
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* marcus/revert-ssh-testcase2/OTP-12004:
fix failed conflict resolution
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* sverk/ets-take-2/OTP-12309:
erts: Optimize ets:lookup and ets:take for bags
Implement ets:take/2
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See #535
Signed-off-by: Peter Lemenkov <[email protected]>
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Signed-off-by: Peter Lemenkov <[email protected]>
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* ia/scrapinghub/closing_httpc_handler_on_closed_while_send:
inets: Fix typo
inets: stop httpc_handler on 'connection closed' send error
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=== OTP-17.4 ===
Changed Applications:
- asn1-3.0.3
- common_test-1.9
- compiler-5.0.3
- crypto-3.4.2
- debugger-4.0.2
- dialyzer-2.7.3
- diameter-1.8
- edoc-0.7.16
- eldap-1.1
- erl_docgen-0.3.7
- erl_interface-3.7.20
- erts-6.3
- eunit-2.2.9
- hipe-3.11.2
- inets-5.10.4
- jinterface-1.5.12
- kernel-3.1
- megaco-3.17.3
- mnesia-4.12.4
- observer-2.0.3
- odbc-2.10.22
- otp_mibs-1.0.10
- parsetools-2.0.12
- percept-0.8.10
- runtime_tools-1.8.15
- snmp-5.1.1
- ssh-3.1
- ssl-5.3.8
- stdlib-2.3
- syntax_tools-1.6.17
- test_server-3.7.2
- tools-2.7.1
- wx-1.3.2
Unchanged Applications:
- cosEvent-2.1.15
- cosEventDomain-1.1.14
- cosFileTransfer-1.1.16
- cosNotification-1.1.21
- cosProperty-1.1.17
- cosTime-1.1.14
- cosTransactions-1.2.14
- et-1.5
- gs-1.5.16
- ic-4.3.6
- orber-3.7.1
- os_mon-2.3
- ose-1.0.2
- public_key-0.22.1
- reltool-0.6.6
- sasl-2.4.1
- typer-0.9.8
- webtool-0.8.10
- xmerl-1.3.7
Conflicts:
OTP_VERSION
erts/vsn.mk
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