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Don't save a pointer to the default failure label. That could
relieve register pressure. Instead, if we'll need to signal an
error in i_select_tuple_arity2, delay to the execution phase.
That should be a clear win because i_select_tuple_arity2 very
rarely fails because of the term being selected is not a tuple.
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Pack sequences of trailing 'f' operands for instructions
such at jump_on_val or i_select_val_lins.
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Use the "ull" suffix for the mask literals instead of "ul"
to ensure that the literals are 64 bits also on Windows.
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Relative failure in itself is not an optimization, but we plan to
pack failure labels in the future to save memory.
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It has served its purpose.
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The following code could fail in the call to list_existing_atom/1:
String = atom_to_list(some_atom),
Atom = list_to_existing_atom(String)
because the compiler will rewrite the code to:
String = "some_atom",
Atom = list_to_existing_atom(String)
If some_atom is not used in another place, it will not exist.
The compiler could be updated to preserve the atom in this simple case,
but it would be hard to make sure that the compiler never loses atoms
that exist in the source text. It also difficult to imagine a
real world use case where this would be a problem. If an atom is
mentioned only in a way that the compiler can optimize away, is there
really any need to create the atom at all in list_to_existing_atom/1?
Therefore, it is better to place the responsibility that the atom exists
on the user of list_to_existing_atom/1. Update the documentation to
mention that the compiler may optimize away atoms.
https://bugs.erlang.org/browse/ERL-453
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* maint:
stdlib: Fix jumping to beginning or end of line
Fix del_chars not considering wide chars and update buffer length before calling write_buf
Make cp_pos_to_col function aware of the ANSI escape codes
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Consider ANSI escape codes on cp_pos_to_col
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This is a bug fix: the end of the 'Last calls' section is meant to be
an empty line, but in some situations this is not the case. This could
cause the complete dump to be read and stored as 'Last calls', causing
very unexpected behavior in the crashdump viewer.
This commit adds a check for ": ", which indicates that a new heading
has occured and thus the 'Last calls' section is completly read.
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This is to avoid crashdumps generated by crashdump_viewer, possibly
overwriting the currently analysed crashdump.
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sverker/on_load-on_load-bug/OTP-14612
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Symptom: VM crash when erlang:trace_pattern(on_load, ..) is set and
module with -on_load is loaded.
Problem: Tracing and -on_load clash in their use of Export.beam[1]
Solution: Do not do call set_default_trace_pattern in finish_loading_1
for modules with -on_load. finish_after_on_load_2 will do that anyway.
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* anders/diameter/grouped_decode/OTP-14607:
Fix diameter_packet.avps decode of Grouped AVP errors in Failed-AVP
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* anders/diameter/DOIC/OTP-14588:
Fix avp_dictionaries decode with {decode_format, none}
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When cursor is before or after a multi-codepoint grapheme cluster.
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calling write_buf
After deleting the chars the function `del_chars` was considering the code points to move the cursor back and not the graphemes
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* maint:
Update the version to 2.8.0
Remove the obsolete erlang-buffer-substring function
Add a :package-version property to the new defcustom erlang-shell-prompt-read-only
Bump the version number
Make the erlang-shell prompt read-only by default
Remove a mention of Emacs 21
Drop some redundant backwards compatibility code
Enable lexical binding for erlang-mode
Remove some ancient compatibility aliases
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* upstream/pr/1474:
Update the version to 2.8.0
Remove the obsolete erlang-buffer-substring function
Add a :package-version property to the new defcustom erlang-shell-prompt-read-only
Bump the version number
Make the erlang-shell prompt read-only by default
Remove a mention of Emacs 21
Drop some redundant backwards compatibility code
Enable lexical binding for erlang-mode
Remove some ancient compatibility aliases
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Introduce new macros that can be used for relative jumps and
use them consistently.
Test that everything works by using a non-zero constant JUMP_OFFSET.
The loader subtracts JUMP_OFFSET from loaded labels, and all
instructions that use 'f' operands add it back.
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* bjorn/erts/improve-beam-ops:
Add built-in macros $ARG_POSITION() and $IS_PACKED()
Use 't' instead of 'I' bit syntax operands
Optimize operand type for match context in i_bs_get_integer
Change operand type from 's' to 'S' for a few instructions
Use the correct name of the parameter
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Optimise equality comparisons
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* potatosalad/erts/binary_find_bif_improved/PR-1480/OTP-14610:
stdlib: Improved BIF for binary matches and split.
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* peterdmv/prepare_inets_release:
inets: prepare for release
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* peterdmv/inets/http_uri_backwards_compat/OTP-14573:
inets: Restore old behavior when parsing "+"
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maint-20
* sverker/20/binary_to_atom-utf8-crash/ERL-474/OTP-14590:
erts: Fix crash in binary_to_atom/term for invalid utf8
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* ingela/inets/httpd-chunk-post/OTP-14450:
inets: httpd correct server_name environment value
inets: httpd - Add chunk handling of client data
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* ingela/inets/maint/httpd-chunk-post/OTP-14450:
inets: httpd correct server_name environment value
inets: httpd - Add chunk handling of client data
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Add host_name to hold the resolved name incorrectly provided as server
name before.
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If the client uses PUT or POST to send a HTTP body the server
currently will gather the whole body in memory before passing it on to
the mod-callback. For legacy reasons it also converts the binary body
to a list, this is really bad for memory usage!
Add new option max_client_body_chunk to enable chunked handling of
content-length requests. Also make it possible for chunked-encoded data
to be propagated in portions to the mod-callback.
Conflicts:
lib/inets/test/httpd_SUITE.erl
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* ingela/ssl/pem-dist/ERL-483:
ssl: Do not break abstraction
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* sverker/ets-fix-assert-fix:
erts: Fix faulty ASSERT of table fixation counter
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* sverker/valgrind-fixes/OTP-14609:
erts: Suppress false memory leak for dlerror
[ct] Cleanup and rename purify related functions as valgrind
Revert "remove unused purify functions"
erts: Fix memory leak when sending to terminating port
erts: Fix harmless use of uninitialised value
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Add host_name to hold the resolved name incorrectly provided as server
name before.
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If the client uses PUT or POST to send a HTTP body the server
currently will gather the whole body in memory before passing it on to
the mod-callback. For legacy reasons it also converts the binary body
to a list, this is really bad for memory usage!
Add new option max_client_body_chunk to enable chunked handling of
content-length requests. Also make it possible for chunked-encoded data
to be propagated in portions to the mod-callback.
Conflicts:
lib/inets/test/httpd_SUITE.erl
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