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Most x86 passes were either linearise(pass(to_cfg(Code))) or trivially
rewritable to process a CFG. This saves a great deal of time and memory
churn when compiling large programs.
Now, there will only ever be a single Linear->CFG conversion, just after
lowering from RTL, and only ever a single CFG->Linear conversion, just
before the finalise pass. Both of these now happen in hipe_x86_main.
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These options would not do anything, because they would not supress the
'o2' in ?COMPILE_DEFAULTS. Such behaviour is added to expand_options/2.
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Now that x86 is no longer broken with these optimisation levels, we add
them to the test suite to ensure they do not break again.
Bump timeout to 6min since tests are run twice as many times.
The option set of o1 was changed to all optimisations that run fast on
both big and small programs, incurring only a slight compile time
increase compared to the old set, but with a, presumably, significant
improvement to speed of compiled code.
Change o0 register allocator to linear_scan.
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Immediate arguments to get_word_integer/4 would lead to bad but
unreachable RTL being generated. We omit its generation by testing for
immediates and performing the logic at compile time.
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The x86 backend crashes if certain RTL optimisations were omitted,
preventing it from being usable at lower optimisation levels.
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There is little point offering LSRA for x86 if we're still going to call
hipe_graph_coloring_regalloc for the floats. In particular, all
allocators except LSRA allocates an N^2 interference matrix, making them
unusable for really large functions.
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* sverker/erl_interface-win-home:
erl_interface: Look for .erlang.cookie in windows directory
erl_interface: Refactor get_home()
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epp learned to handle the -warning() directive in 14d72f02, but
make and ct_make were not updated to expect a {warning,_} return
value from epp:parse_erl_form/1.
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* maint:
Fix tracing of processes executing dirty
Perform check_process_code while process is executing dirty
Fix purge of code
Reclaim literal area after purge has completed
Separate literal area from code
Conflicts:
erts/emulator/beam/global.h
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* rickard/ds-purge-module/OTP-13808:
Perform check_process_code while process is executing dirty
Conflicts:
erts/doc/src/erl_nif.xml
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'rickard/new-purge-strategy/OTP-13833' into maint
* rickard/fun-purge-bug/OTP-13809:
Fix purge of code
Reclaim literal area after purge has completed
Separate literal area from code
Conflicts:
erts/doc/src/erlang.xml
erts/emulator/beam/beam_bif_load.c
erts/emulator/beam/erl_init.c
erts/preloaded/ebin/init.beam
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This is to get rid of some warnings in Codenomicon/Defensics. It also speeds up the communications.
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This is to try to fix ssh_connection_SUITE:interrupted_send problem. On machines with small buffers (<65k) like some Windows and *BSDs, this test case could deadlock with both sides having filled tcp receice buffers but stuck in prim_inet:send. This commit fixes this.
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Trailing pdu values being 0 or empty strings are just excluded from the pdu
by Codenomicon/Defensics.
This is wrong but some kind of habit "out there". This commit makes Erlang SSH
accept such pdu in one place because Defensics is king of security tests ...
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Ensure that we cannot get any dangling pointers into code that
has been purged. This is done by a two phase purge. At first
phase all fun entries pointing into the code to purge are marked
for purge. All processes trying to call these funs will be suspended
and by this we avoid getting new direct references into the code.
When all processes has been checked, these processes are resumed.
The new purge strategy now also completely ignore the existence of
indirect references to the code (funs). If such exist, they will
cause bad fun exceptions to the caller, but will not prevent a
soft purge or cause a kill of a process having such live references
during a hard purge. This since it is impossible to give any
guarantees that no processes in the system have such indirect
references. Even when the system is completely clean from such
references, new ones can appear via distribution and/or disk.
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* g-andrade/kernel/fetch_ztream_dictionary/PR-1139/OTP-13842:
Update preloaded modules
Specify min zlib ver on inflateGetDictionary doc
Skip inflateGetDictionary test case if unsupported
zlib: Only link inflateGetDictionary if available
zlib: Add test case for inflateGetDictionary
zlib: support extraction of inflation dictionary
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A stronger version of Dialyzer complained that some case clauses in
functions xaluop_is_shift/1 and xaluop_normalise/1 are unreachable.
These clauses are now commented out. While at it, I thought that it
would be better to eliminate the catch-all clauses in order to be
certain we properly handle all RTL instructions that are used as
inputs to these functions.
Note: The code will now crash if there are unhandled cases.
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"Defaults to X" isn't clarified by "if unspecified".
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Since the large strings copied between processes cause testcases to fail
randomly.
Option string_decode was added in commit 1590920c.
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Commit 5ca5fb71 ensured that they were closed immediately at transport
removal, but in so doing broke their closing at stop service completely,
by removing the timer that caused sockets to be closed even belatedly.
Monitor on the service process to make it happen.
This could still be improved, since stop_service listening ports aren't
closed until after the service process has died. They could be closed
earlier in the case of stop_service.
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The copyright was a historical remnant of diameter's roots prior to its
inclusion in OTP.
Thanks to Anatolie Golovco.
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It's '#get-'/2, not 'get-'/2. Only failed if the dictionary in question
defined no Failed-AVP, which is rarely the case in practice.
Thanks to Ferenc Holzhauser.
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This is required in some really old SPARC machines running Solaris
we still have access to.
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* peppe/debugger_crash/ERL-191/OTP-13756:
Make sure exit in non-interpreted code doesn't crash the debugger
OTP-13756
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Use application:ensure_all_started/2 instead of hard-coding dependencies
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* raimo/gen_statem-callback_mode/OTP-13752:
Include trap_exit in server skeletons
Improve sys debug
Handle exceptions in init/1 and callback_mode/0
Clarify error values
Doc fixes
Rewrite SSH for gen_statem M:callback_mode/0
Rewrite SSL for gen_statem M:callback_mode/0
Rewrite Tools for gen_statem M:callback_mode/0
Rewrite gen_statem docs for M:callback_mode/0
Rewrite gen_statem TCs for M:callback_mode/0
Rewrite gen_statem for M:callback_mode/0
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Register allocation could transform something like
fmove u32, d99
to
fmove $rdx, 0x20($rsp)
which is an invalid instruction.
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Since the link register/return address is restored before stack
arguments are stored to the frame, we must not use it to store a stack
argument. We do that by adding it to the registers clobbered by
pseudo_tailcall_prepare.
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