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* kvakvs/erts/gc_minor_option/OTP-11695:
erts: Fix req_system_task gc typespec
Fix process_SUITE system_task_blast and no_priority_inversion2
Option to erlang:garbage_collect to request minor (generational) GC
Conflicts:
erts/emulator/beam/erl_process.c
erts/preloaded/src/erts_internal.erl
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* maint:
kernel: Correct file(3)
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* hasse/kernel/doc-fix:
kernel: Correct file(3)
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* lukas/erts/epmd_xmllint_fix:
epmd: Fix xmllint error in comsummary
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* lukas/erts/fix_signalhandler_errno_restore/OTP-13868:
erts: Fix child setup signal hander bug
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* lukas/kernel/os_cmd_fix_stdin_close/OTP-13867:
kernel: Close stdin of commands run in os:cmd
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into maint
* lukas/kernel/fix_os_SUITE_message_leak_testcase/OTP-13867:
kernerl: Remove infinite loop from testcase
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* lukas/erts/tracing/fix_sparc_align_issue/OTP-13803:
erts: Immed tracer states also have to be alignable
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* bjorn/floor-ceiling/OTP-13692:
Add math:floor/1 and math:ceil/1
Implement the new ceil/1 and floor/1 guard BIFs
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Add math:floor/1 and math:ceil/1 to avoid unnecessary conversions
in floating point expressions. That is, instead of having to write
float(floor(X)) as part of a floating point expressions, we can
write simply math:floor(X).
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Implement as ceil/1 and floor/1 as new guard BIFs (essentially part of
Erlang language). They are guard BIFs because trunc/1 is a guard
BIF. It would be strange to have trunc/1 as a part of the language, but
not ceil/1 and floor/1.
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* bjorn/lc-overridden-bif/OTP-13690:
Fix overridden BIFs
Don't crash when obsolete guard overrides local function
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* bjorn/erts/help-clang:
Slightly reduce code size of process_main()
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* ingela/ssl/test-framework-checks:
ssl: Test ssl v2 clients rejection depending on configuration
ssl: Add check in test framework for crypto support
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This is needed when running programs that only exit when
stdin has been closed, e.g. 'more'.
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Even though v2 is never supported v2 hellos can be.
No support for v2 client hellos gives "handshake failiure" alert.
Support for v2 hello but no higher SSL/TLS version offered
gives "protocol version" alert.
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* maint:
Introduce literal sweep of native stack in new purge strategy
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* rickard/new-purge-strategy/OTP-13777:
Introduce literal sweep of native stack in new purge strategy
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* sverker/hipe-performance-o1/PR-1154:
hipe_sparc: Minimise CFG<->linear conversions
hipe_ppc: Minimise CFG<->linear conversions
hipe_arm: Minimise CFG<->linear conversions
hipe_x86: Use lea instead of move+add
hipe_arm: Improve peephole optimiser
hipe_arm: Be resilient to crappy RTL
hipe_ppc: Be resilient to crappy RTL
hipe_sparc: Be resilient to crappy RTL
hipe: Reuse liveness info for spillmin
hipe_x86: Minimise CFG<->linear conversions
hipe: Fix o0 and o1
hipe: Add o0 and o1 to tests
hipe_rtl_binary:get_word_integer/4: Handle imms
hipe_x86: Be resilient to crappy RTL
hipe_x86: LSRA for SSE2
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* sverker/hipe-sparc-19/PR-1148:
Eliminate catch-all clause from two functions
Increase the time limit used by the test suite
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The filters in a list comprehension can be guard expressions or
an ordinary expressions.
If a guard expression is used as a filter, an exception will basically
mean the same as 'false':
t() ->
L = [{some_tag,42},an_atom],
[X || X <- L, element(1, X) =:= some_tag]
%% Returns [{some_tag,42}]
On the other hand, if an ordinary expression is used as a filter, there
will be an exception:
my_element(N, T) -> element(N, T).
t() ->
L = [{some_tag,42},an_atom],
[X || X <- L, my_element(1, X) =:= some_tag]
%% Causes a 'badarg' exception when element(1, an_atom) is evaluated
It has been allowed for several releases to override a BIF with
a local function. Thus, if we define a function called element/2,
it will be called instead of the BIF element/2 within the module.
We must use the "erlang:" prefix to call the BIF.
Therefore, the following code is expected to work the same way as in
our second example above:
-compile({no_auto_import,[element/2]}).
element(N, T) ->
erlang:element(N, T).
t() ->
L = [{some_tag,42},an_atom],
[X || X <- L, element(1, X) =:= some_tag].
%% Causes a 'badarg' exception when element(1, an_atom) is evaluated
But the compiler refuses to compile the code with the following
diagnostic:
call to local/imported function element/2 is illegal in guard
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The compiler would crash in v3_codegen when trying to compile the
following code:
is_port(_) -> false.
foo(P) when port(P) -> ok.
We *could* have the compiler interpret the code as:
is_port(_) -> false.
foo(P) when erlang:is_port(P) -> ok.
But that would encourage using the obsolete form of the guard tests.
Note that the following code is illegal:
is_port(_) -> false.
foo(P) when is_port(P) -> ok.
It produces the following diagnostic:
call to local/imported function is_port/1 is illegal in guard
Therefore, we should refuse to compile the code.
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* bjorn/eliminate-sys_pre_expand/OTP-13856:
Remove sys_pre_expand
xref: Eliminate use of sys_pre_expand
debugger: Eliminate use of sys_pre_expand
compiler: Eliminate use of sys_pre_expand
shell_SUITE: Eliminate references to sys_pre_expand in comments
qlc_pt: Simplify code because of updated erl_expand_records
Teach erl_expand_records to translate module-less calls
erl_internal: Add add_predefined_functions/1
cover: Remove always stale comment
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Avoid to run tests of algorithms not supported by crypto.
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When running the signal handler, the errno has to be restored
to its original value, otherwise code running in the same thread
may misbehave.
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* maint:
Fix documentation of an option of erl_tidy
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* fenollp/syntax_tools/erl_tidy_option/PR-1151:
Fix documentation of an option of erl_tidy
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* maint:
doc: Correct errors introduced by Editorial changes
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* hasse/doc/fix_editorial_changes:
doc: Correct errors introduced by Editorial changes
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* rickard/default-dirty-schedulers/OTP-13860:
Enable dirty scheduler support as default
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* rickard/remove-old-purge-strategy/OTP-13844:
Avoid selective receive in code-purger process
Remove old purge strategy
Conflicts:
erts/emulator/beam/beam_bif_load.c
erts/emulator/beam/global.h
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* maint:
Fix reclaim of literal areas
Conflicts:
erts/emulator/beam/global.h
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* rickard/new-purge-strategy/OTP-13833:
Fix reclaim of literal areas
Conflicts:
erts/emulator/beam/beam_bif_load.c
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clang will generate smaller code if we avoid reassigning the
reg and freg arrays. That can be easily arranged by passing them
as arguments to process_main().
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The previous commits have made sys_pre_expand superfluous. Since
sys_pre_expand is undocumented and unsupported it can be removed in
a major release without prior deprecation.
Also remove code in erl_parse that handles abstract code that has
passed through sys_pre_expand.
We considered deprecating sys_pre_expand just in case, but decided
against it for the following reasons:
- Anyone brave and knowledgeable enough to use sys_pre_expand should
be able to cope with sys_pre_expand being removed.
- If we kept it, but didn't test it anywhere in OTP, it could
potentially stop working. So we would probably have to add some test
cases.
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