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live_regs/1 folds over a list of tuples, so a clause matching
an element being an empty list can never match.
If the list for some unfathomable reason would contain an empty
list, there will be an internal compiler error and no *.beam file
will be created. Thus this change is safe.
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Add a test case (derived from dets_v9:scan_skip/8), to cover the
clause in initialized_regs/2 that handles bs_context_to_binary.
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When scanning a reversed instruction sequence for a function,
it is impossible to reach the end of the list, because each function
must have a fun_info/4 instruction followed by a label/1 instruction
at the beginning, and there is a clause that will handle those
instructions.
If for some unfathomable reason the end of the list would be
reached, with this change there will be an internal compiler error
and no *.beam file will be created. Thus this change is safe.
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Since the introduction of literals in R12B, empty tuples
are literals. Thus the put_tuple/2 instruction is always
followed by at least one put/1 instruction. Therefore
the alloc_may_pass/1 function in beam_block no longer needs
a clause for for "put_tuple", because the clause for "put"
will always be reached first (since the instruction stream
is scanned in reverse execution order).
Note that if the compiler would generate a "put_tuple 0 Dst"
instruction for some unfathomable reason, we should still be
because the run-time system will now refuse to load a module
containing such an instruction.
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On Solaris only, the 'time' option would include the process
size for the Erlang virtual machine in its output. Since few
compiler developers use Solaris nowadays, remove the code.
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Compiling from *.core files is not a supported feature, and writing
test cases to improve the coverage of core_scan will not help
us to find more bugs in the compiler.
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* pan/otp_8217_binary:
Add documentation for binary module
Add more tests and make some go easier on small systems
Correct Boyer More and trapping for longest_common_suffix
Add longer timetrap to testcases and add binary to app file
Add guard BIFs binary_part/2,3
Add binary:{encode,decode}_unsigned({1,2}
Add referenced_byte_size/1
Add binary:list_to_bin/1 and binary:copy/1,2
Add bin_to_list/{1,2,3}
Add binary:longest_common_prefix/longest_common_suffix
Add binary:part to erl_bif_binary.c
Move binary module bif's to erl_bif_binary.c
Count reductions for process even when not trapping
Add random compare testcase
Teach BIF's binary:match/matches interrupting/restarting
Teach binary.c the semantics to take longest instead of shortest match
Initial commit of the binary EEP
OTP-8217 Implement EEP31
The module binary from EEP31 (and EEP9) is implemented.
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* dp/shell-line-editing:
Readline-style line edit history
OTP-8635 dp/shell-line-editing
The shell's line editing has been improved to more resemble the behaviour
of readline and other shells. (Thanks to Dave Peticolas)
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future.
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Correct behaviour of copy/2 witn 0 copies.
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Even more tests added to cover more error cases, some tests
made easier on systems with small memories and timeouts made longer
due to timetraps on solaris daily builds.
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Add testcases and clean up to get better code coverage.
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Add the gc_bif's to the VM.
Add infrastructure for gc_bif's (guard bifs that can gc) with two and.
three arguments in VM (loader and VM).
Add compiler support for gc_bif with three arguments.
Add compiler (and interpreter) support for new guard BIFs.
Add testcases for new guard BIFs in compiler and emulator.
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Add testcases for encode/decode_unsigned/1,2.
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Add testcases for referenced_byte_size/1.
Add failure tests for referenced_byte_size.
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Add testcases for binary:list_to_bin/1 and binary:copy/1,2.
Add reference implementation of list_to_bin/1.
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Add testcases for bin_to_list.
Teach binref.erl bin_to_list.
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Add allcoator parameter to erts_get_aligned_binary_bytes_extra.
Add testcases for the functions above.
Add reference implementation for the functions above.
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Change name of the 'scope' option for binary:match/matches.
Add split and replace to binary.erl.
Cleanup comments etc in binary.erl and atom.names
Add testcases for part, split, replace and scopes.
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Set loop factors to 10.
Teach erts_debug:set_internal_state to limit loop factor for binary.
Add random tests for matches and match with multiple searchstrings.
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Fix heap-hole when trapping in binary.c
Fix boyer more segfaulting when searchstring is longer than haystack
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Add testcase embryos and reference implementation.
Change name of compile function according to EEP31.
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* bg/compiler-attributes:
Remove opaque declarations from the attributes
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The bug was introduced in d60f055697cfe8e7f94be4d291d49bb00a66bc52.
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The documentation of lists:keysort/2 states that the sort is stable.
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-opaque declarations should not be retained in the attributes
(because they will be loaded along with the code and are not
useful).
While at it, filter away those Dialyzer attributes as early
as possible - in v3_kernel.
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* bg/opt-receive:
Test that gen_server:call/2,3 are fast even with a huge message queue
erts: Add tests for the receive optimization
Update primary bootstrap
erts: Implement recv_mark/1 and recv_set/1 for real
compiler tests: Cover the error handling code in beam_receive
compiler test: Test optimization of receive statements
Optimize selective receives in the presence of a large message queue
Introduce the new recv_mark/1 and recv_mark/1 instructions
Compile tests that communicate with R12 nodes with the r12 option
Move p_run/2 to test_lib
gen: Inline wait_resp_mon/2 to help the compiler optimize
OTP-8623 bg/opt-receive
reveive statements that can only read out a newly created reference are now
specially optimized so that it will execute in constant time regardless of
the number of messages in the receive queue for the process. That
optimization will benefit calls to gen_server:call(). (See gen:do_call/4
for an example of a receive statement that will be optimized.)
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OTP-8627: Fix flex lib(s) installation.
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* bg/beam_lib:
Remove redundant includes
Make beam_lib:cmp/2 stricter
OTP-8625 bg/beam_lib
The beam_lib:cmp/2 function now compares BEAM files in stricter way. The
BEAM files will be considered different if there are any changes except in
the compilation information ("CInf") chunk. beam_lib:cmp/2 used to ignore
differences in the debug information (significant for Dialyzer) and other
chunks that did not directly change the run-time behavior.
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* dgud/emacs-21-fix:
Remove usage of 'font-lock-preprocessor-face' if not available
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* pl/fix-shared-lib-install:
Fix shared libraries installation
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New ssl now supports secure renegotiation as described by RFC 5746.
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We don't attempt to run the generated code, but use beam_disasm
and check for the presence or absence (as appropriate) of the
recv_mark/1 and recv_set/1 instructions.
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If a gen_server process has many messages in its message queue and
calls another gen_server process, the selective receive in
gen_server:call() will have to go through the entire message queue.
Have the compiler generate the new mark_recv/1 and mark_recv/1
instructions that can avoid going through the entire message queue.
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