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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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As a preparation for introducing relative jumps, introduce
"trace_jump W" that can be used for tracing. This instruction
will continue to have an absolute address for the jump target.
(Note: This instruction is never created during loading; it
is only created in stubs when tracing is active.)
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The C compiler will probably optimize this, but just to be sure...
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* lukas/erts/non-smp-removal-cleanup/OTP-14518:
Make estone work with older releases
erts: Allow read in ttsl driver to return EAGAIN
syntax_tools: Fix makefile dep
erts: non-smp removal cleanup in erlexec
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* lukas/erts/pgo/OTP-14604:
Add support for building a pgo beam_emu
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The 'S' operand type was added in 5bf73db9fd77.
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The right side of a transformation must be either a single call
to a transformation function OR a list of instructions. Mixing
them like this is not supported:
some_instruction A B C => gen_something(A) | other B C
Unfortunately, beam_makeops would silenty ignore anything after the
function call, basically handling it in the same way as:
some_instruction A B C => gen_something(A)
Add a sanity check to reject such mixed right-hand sides.
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* bjorn/erts/improve-beam-ops:
Don't allow macros to assign to hard-coded variables
Annotate try_case_end as cold
beam_emu.c: Mark initialization code as unlikely
Try to avoid generating unecessary do/while wrappers
Eliminate unecessary instruction macro i_move_call_only()
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Besides being noisy, they were already defined by a global Unix-
specific header, causing the Windows build to fail if one forgot to
define them.
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OTP-14527
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OTP-14520
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OTP-14527
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All operations will now yield appropriately, allowing them to be used
freely in concurrent applications. This commit also deprecates the
functions listed below, although they won't raise deprecation
warnings until OTP 21:
zlib:adler32
zlib:crc32
zlib:inflateChunk
zlib:getBufSize
zlib:setBufSize
The behavior of throwing an error when a dictionary is required for
decompression has also been deprecated.
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OTP-14520
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* maint:
Bug fixes of statistics(wall_clock) and statistics(runtime)
Conflicts:
erts/emulator/beam/erl_time_sup.c
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* rickard/statistics-time-fixes/OTP-14597/ERL-465:
Bug fixes of statistics(wall_clock) and statistics(runtime)
Conflicts:
erts/emulator/beam/erl_time_sup.c
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* rickard/dist/OTP-14459:
Fix setnode/3 and erts_net_message()
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It's bad style. Pass the name of the variable as an
extra argument to the macro.
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try_case_end is an excepting-generating instruction that is
infrequently executed.
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Make the generated code easier to read.
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* 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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De-duplicate bignums in the literal pool
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* bjorn/erts/improve-beam-ops:
Optimize dispatch of loop_rec from recv_set
Add missing -no_next directives
Eliminate three arguments for erts_hibernate()
Eliminate three arguments for the apply() helper
Assign machine registers for X86-64
Annotate arithmetic instructions with likely/unlikely
Add annotations for likely/unlikely
ops.tab: Mark infrequently used instructions as %cold
Introduce '%warm' and beam_warm.h
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We KNOW that recv_set instruction is immediately followed
by a loop_rec instruction.
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We don't need to pass x(0), x(1), and x(2) because they
can already be found in the register array.
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We don't need to pass x(0), x(1), and x(2) because they
can already be found in the register array.
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Keep frequently used variables in machine registers.
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We expect that:
* An arithmetic instruction is more likely to succeed
than to fail.
* An arithmetic instruction is more likely to have small
operands than bignum operands.
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In a correct Erlang programs, we can expect that:
* A GC test instruction (such as test_heap) is more likely
not to do the GC.
* A BIF is more likely to succeed than to fail.
* A BIF is more likely to fail in a guard than in a body.
* An apply or fun call is likely to succeed.
Annotate conditions accordingly.
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Instructions that used to be implemented in beam_emu.c
were not marked as cold as it would make no difference.
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The bit syntax instructions are mixed among other instructions
in beam_hot.h and beam_cold.h.
Introduce a new hotness level called '%warm' with is associated
file beam_warm.h. Mark all bit syntax instructions as '%warm'.
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* maint:
Upgrade to PCRE 8.41 from PCRE 8.40
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OTP-14574
* rickard/pcre-8.41:
Upgrade to PCRE 8.41 from PCRE 8.40
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* lukas/erts/port_SUITE_dropped_commands_fix:
erts: Fix port_SUITE:dropped_commands tc
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* dszoboszlay/run-dropped_commands-test:
Execute the dropped_commands test case in port_SUITE
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