Age | Commit message (Collapse) | Author |
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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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The 'S' operand type was added in 5bf73db9fd77.
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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-14520
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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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* 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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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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such as a sub-binary, of a correct utf8 string,
that ends in the middle of a character.
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Remove backward compatibility support for float literals
OTP-14575
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Duplicate literals in the literal pool is a waste of memory.
Also, having unique literals can simplify some loader optimizations,
because we can known that if two literal indices are distinct, the
values must be distcint too.
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Conflicts:
erts/emulator/beam/bif.c
erts/emulator/beam/dist.c
erts/emulator/beam/dist.h
erts/emulator/beam/erl_bif_info.c
erts/emulator/beam/erl_node_tables.c
erts/emulator/beam/erl_node_tables.h
erts/emulator/beam/external.c
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Starting from R16B, floating point constants are stored
in the literal pool.
The backward compatibility support for the old representation
of floats has been kept long enough. Also, we might want to
ensure that all literals are unique in the future, and we certainly
don't want to update this code to ensure uniqueness.
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* rickard/btm-auto-cleanup-bug/OTP-14554:
Fix BIF timer race between timeout and auto cleanup
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* rickard/timer-sid-bug/OTP-14548:
Fix scheduler id field in timers
# Conflicts:
# erts/emulator/beam/erl_hl_timer.c
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* maint:
Fix BIF timer race between timeout and auto cleanup
Conflicts:
erts/emulator/beam/erl_hl_timer.c
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* rickard/btm-auto-cleanup-bug/OTP-14554:
Fix BIF timer race between timeout and auto cleanup
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* maint:
Fix scheduler id field in timers
Conflicts:
erts/emulator/beam/erl_hl_timer.c
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* rickard/timer-sid-bug/OTP-14548:
Fix scheduler id field in timers
Conflicts:
erts/emulator/beam/erl_hl_timer.c
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* bjorn/erts/improve-beam-ops:
arith_instrs.tab: Clean up bsl/bsr
beam_makeops: Stop using the Arg() macro
Eliminate the beam_instrs.h file
Add the 'S' type for a register source
Introduce more packable types
Pack cold instructions too
Pack instructions using 'q', 'c', and 's'
beam_makeops: Rewrite the packer, fixing several bugs
Make map update instruction functions indepedent of instruction format
beam_makeops: Introduce the new type 'W' (machine word)
Use the wait_timeout_{un}locked_int instructions
beam_makeops: Remove the unused aliases 'N' and 'U'
beam_makeops: Add an additional sanity check
beam_makeops: Prevent truncation when packing 'I' values
Improve performance for bsl/bsr
arith_instrs.tab: Eliminate warning for uninitialized value
beam_emu: Remove unused macros
beam_makeops: Remove unused subroutine save_c_code
Add missing -no_next for badarg instruction
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Conflicts:
OTP_VERSION
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