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* bjorn/compiler/fix-r21-option:
Fix code generation of binary instructions with the r21 option
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Minor cleanups and bug fixes of the compiler
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* ingela/ssl/extensions-and-TLS-1.3-handshaking:
ssl: Correct extension decoding and dialyzer spec
ssl: Generalize extensions handling
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* siri/appups-21.2:
Update kernel, stdlib and sasl appups for OTP-21.2
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* sverker/erts/cleanup-efile-argc-checks:
erts: Remove unnecessary NIF argc tests
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OTP 22 extends the binary instructions to support a Y register
destination. When giving an option to compile for an earlier
release, make sure that binary instructions don't use a Y register
destination, by rewriting the binary instructions to use an X
register destination and adding a `move` instruction to move
the value to the Y register.
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Rewrite BSM optimizations in the new SSA-based intermediate format
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This has been superseded by bs_get_tail/3. Note that it is NOT
removed from the emulator or beam_disasm, as old modules are still
legal.
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Remove the variable aliasing support that was needed for the
old beam_bsm pass.
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The beam_ssa_bsm pass welds chained matches together, but the match
expressions themselves are unchanged and if there's a tail
alignment check it will be done each time. This subpass figures out
the checks we've already done and deletes the redundant ones.
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This commit improves the bit-syntax match optimization pass,
leveraging the new SSA intermediate format to perform much more
aggressive optimizations. Some highlights:
* Watch contexts can be reused even after being passed to a
function or being used in a try block.
* Sub-binaries are no longer eagerly extracted, making it far
easier to keep "happy paths" free from binary creation.
* Trivial wrapper functions no longer disable context reuse.
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As TLS 1.3 introduces more extensions in other places than in hello messages
we like to have generalize extension handling encode/decode with some
hello wrappers.
Also extend property tests of handshake encod/decode
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Moving away this optimization makes beam_block do one thing
and one thing only -- creating blocks.
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The only caller of bif_to_test/3 is beam_ssa_codegen.
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Disallow a literal map source for get_map_elements. There is currently
runtime support for get_map with a literal map source, but by
forbidding it in OTP 22, the runtime support could be removed in a
future release (perhaps OTP 24).
Also verify that the source arguments for get_list, get_hd, get_tl,
and get_tuple_element are not literals. Literals are not supported for
those instructions in the runtime system; verifying it in
beam_validator is a convenience so that this kind of bug will
be detected already during compilation.
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The source map for `get_map_element` is not supposed to be a literal,
and the sanitization code is supposed to ensure that.
The sanitization incorrectly translated this code:
Map = get_tuple_element literal {ok,#{key=>value}}, literal 1
Var = get_map_element Map, literal {a,key}
To this code:
Var = get_map_element literal #{key=>value}, literal {a,key}
Make sure to substitute the arguments for `get_map_element` before
looking for a literal source map.
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Using maps and cerl_sets instead of dict and sets will slightly
speed up the beam_clean pass for modules with many functions
and/or calls to local functions.
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It is not necessary to combine get_hd and get_tl instruction to
a get_list instruction. It will be done in beam_z.
After this change, beam_flatten does nothing more than eliminating
the blocks.
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Continuing the simplification of beam_flatten, move the optimization
that eliminates a test_heap instruction following a binary construction
by incorporating the allocation of the heap space into the bs_init*
instruction itself.
This change does not change the generated code in any way.
Also remove beam_utils:combine_heap_needs/2, because beam_flatten
was the last user of it.
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The purpose of beam_flatten is to eliminate the blocks created by
beam_block, but it also does a few optimizations because at the
time the optimizations were added, beam_flatten was the most
convenient place.
Move the optimization that places `{move,Something,{x,0}}` before
`call` instructions from beam_flatten to beam_ssa_codegen.
This change will very slightly improve compilation times, and it
will also apply the optimization in more places. In particular,
a `{move,Literal,{x,0}}` would never be moved passed a `trim`
instruction before this change. Now it will.
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jhogberg/john/compiler/validator-aliased-type-fixes/ERL-735
beam_validator: Use set_aliased_type in more operations
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It's impossible to call NIF with wrong argc from Erlang
and thus pointless to throw badarg.
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The following code broke because aliases weren't tracked for hd/1:
bug(Bool) ->
Bug = remote:call(),
if
Bool -> %% Branch of some kind.
_ = hd(Bug),
remote:call(),
hd(Bug)
end.
Related to 1f221b27f1336e747f7409692f260055dd3ddf79
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fix for ppc64le / add travis test for ppc64le
OTP-15313
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* ingela/ftp/tftp/app.src-fix:
ftp, tftp: Version should not be hardcoded in <app>.app.src
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get_anno/3: as get_anno but with a default value
definitions/1-2: returns a map of variable definitions (#b_set{})
uses/1-2: returns a map of all uses of a given variable
mapfold_blocks_rpo/4: mapfolds over blocks
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The upcoming beam_ssa_bsm pass makes this redundant.
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The upcoming beam_ssa_bsm pass allows match contexts to be used
across function calls that take said context as an argument, which
means it's fairly common for them to end up in Y registers.
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Clean up variable-related cruft in new SSA passes
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* sverker/erts/beautify-ifdef-DEBUG:
erts: Beautify away #ifdef DEBUG
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Add a more scalable ETS ordered_set implementation
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* maint:
crypto: Fix accidental merge
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* hans/crypto/fix_bad_merge:
crypto: Fix accidental merge
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Commit 8c47a7657d03777a03a6838c7ec937b6347d07f8 accidently
reverted the changes in lib/crypto/src/crypto.erl correctly
introduced in e8de0736005e91afd992e49f434e08c940eddfa0
This fix re-introduces the correct changes.
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* ingela/ssl/openssl-test-interop:
ssl: Improve interop checks
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