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Introduce a new 'Q' type, similar to 'P' except that it
can be packed.
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There was a version of the BEAM loader and emulator that
had two versions of the fmove/2 instruction, one version
that allocated heap space internally and a newer version that
assumed that a previous test_heap/2 instruction had already
allocated the heap space.
Though the allocating fmove/2 instruction is no longer
supported, some vestiges of it still remains.
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Without the instruction defined in ops the interpreter will not
compile when using NO_JUMPTABLE.
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Initial commit with a new breakpoint instruction and PSD areas
for temporary time storage during tracing.
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The last compiler to generate code that uses the bs_bits_to_bytes/3
instruction was the R11 compiler. Since we don't support loading
R11 *.beam files in R14, removing the remaining support for the
instruction.
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Since R12B, empty tuples are literals. Thus the compiler will no
longer generate the instruction:
put_tuple 0 Destination
for creating an empty tuple. It is now time to stop supporting
that instruction in the run-time system.
While we are at it, correct a typo.
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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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The recv_mark/1 instruction will both save the current
position in the message queue and a mark (the address of the
loop_rec/2 instruction just following the recv_set/1
instruction). The recv_mark/1 instruction will only
use the saved position if the mark is correct.
The reason for saving and verifying the mark is that
the compiler does not need to guarantee that no other
receive instruction can be executed in between the
recv_mark/1 and recv_set/1 instructions (the mark will
be cleared by the remove_message/0 instruction when a message
is removed from the message queue). That means that arbitrary
function calls in between those instruction can be allowed.
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Make the recv_mark/1 and recv_mark/1 instructions known to the
compiler and run-time system. For the moment, make the loader ignore
any occurrences of those instructions in BEAM files.
Also update hipe_beam_to_icode to ignore those instructions.
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The following program is supposed to cause an exception
at run-time:
foo() ->
Sum1 = Sum2 = N = 2,
pSum - (Sum1*(Sum2/N)).
but the loader fails to load because it contains the
following instruction:
fconv {atom,pSum} {fr,2}
Fix the loader so that it can handle fconv instructions
where the first operand is a non-numeric literal.
Reported-by: Torbjörn Törnkvist
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* bg/compiler-remove-r11-support:
compiler: Don't support the no_binaries option
erts: Don't support the put_string/3 instruction
compiler: Don't support the no_constant_pool option
compiler: Don't support the r11 option
test_server: Don't support communication with R11 nodes
binary_SUITE: Don't test bit-level binary roundtrips with R11 nodes
erts: Test compatibility of funs with R12 instead of R11
OTP-8531 bg/compiler-remove-r11-support
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Since R14 does not need to load code that can also be loaded
in an R11 run-time system, support for the put_string/3
instruction can be removed.
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