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code_SUITE:upgrade would consistently fail in the HiPE case
because two clauses were mixed up. Disabling it altogether may
seem a bit harsh but we don't have the resources to fix it at the
moment.
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This reverts commit 425889ba69b69a9b6fb14bfbef121d51b78e853a.
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This was only intended to be documented during OTP 22's testing
phase and we're nearing its release now. In addition to that it
wasn't a complete fix as modules compiled with HiPE+no_bsm3
tended to crash the emulator at runtime.
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This reverts commit 0118046f9bda8dcf3594184fa439b79267db8017.
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* maint:
Updated OTP version
Prepare release
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This reverts commit df130102cdeca8d35fec95a0c926fd1cfec54eab.
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* maint:
Updated OTP version
Prepare release
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Rewrite BSM optimizations in the new SSA-based intermediate format
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I did not find any legitimate use of "can not", however skipped
changing e.g RFCs archived in the source tree.
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* rickard/hipe-doc:
Update information about HiPE
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This reverts commit fd8e49b5bddceaae803670121b603b5eee8c5c08.
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This reverts commit 202bb737e3deabfebee683266f4b7c42781eb521.
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Implementation of true asynchronous signaling between processes
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Communication between Erlang processes has conceptually always been
performed through asynchronous signaling. The runtime system
implementation has however previously preformed most operation
synchronously. In a system with only one true thread of execution, this
is not problematic (often the opposite). In a system with multiple threads
of execution (as current runtime system implementation with SMP support)
it becomes problematic. This since it often involves locking of structures
when updating them which in turn cause resource contention. Utilizing
true asynchronous communication often avoids these resource contention
issues.
The case that triggered this change was contention on the link lock due
to frequent updates of the monitor trees during communication with a
frequently used server. The signal order delivery guarantees of the
language makes it hard to change the implementation of only some signals
to use true asynchronous signaling. Therefore the implementations
of (almost) all signals have been changed.
Currently the following signals have been implemented as true
asynchronous signals:
- Message signals
- Exit signals
- Monitor signals
- Demonitor signals
- Monitor triggered signals (DOWN, CHANGE, etc)
- Link signals
- Unlink signals
- Group leader signals
All of the above already defined as asynchronous signals in the
language. The implementation of messages signals was quite
asynchronous to begin with, but had quite strict delivery constraints
due to the ordering guarantees of signals between a pair of processes.
The previously used message queue partitioned into two halves has been
replaced by a more general signal queue partitioned into three parts
that service all kinds of signals. More details regarding the signal
queue can be found in comments in the erl_proc_sig_queue.h file.
The monitor and link implementations have also been completely replaced
in order to fit the new asynchronous signaling implementation as good
as possible. More details regarding the new monitor and link
implementations can be found in the erl_monitor_link.h file.
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Conflicts:
OTP_VERSION
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HiPE: Optimise receives matching unique references
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* lukas/docs/xmllint_fixes/OTP-14721:
ssl/ssh: Remove/ignore unused XML_FILES doc files
Refactor xmllint check and make it fail on failure
Add toplevel xmllint make target
Conflicts:
lib/crypto/doc/src/Makefile
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Document HiPE limitations
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which don't seem to be true.
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This commit also adds a check to see that all files that
are part of an xi:include also have part of XML_FILES
and vice versa. It also fixes any applications where this
was not true.
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* lars/doc-cleanup/OTP-14475:
[edoc] Remove unused module otpsgml_layout.erl
Remove unused files from the documentation build
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This reverts commit eaf8ca41dfa4850437ad270d3897399c9358ced0.
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