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2019-03-01Add application:set_env/1 and application:set_env/2José Valim
It is equivalent to calling application:set_env/4 on each application individually, except it is more efficient. When given duplicate apps or duplicate keys, set_env/1 and set_env/2 will warn. The warning will also be emitted during boot: $ erl -config dupkeys.config -s erlang halt 2019-02-27 11:16:02.653100 application: kernel; duplicate parameter: key1 =WARNING REPORT==== 27-Feb-2019::11:16:02.653100 === application: kernel; duplicate parameter: key1 $ erl -config dupapps.config -s erlang halt 2019-02-27 11:16:02.653100 duplicate application config: kernel =WARNING REPORT==== 27-Feb-2019::11:16:02.653100 === duplicate application config: kernel Prior to this patch, the behaviour was unspecified, and duplicate keys and duplicate apps would behave different depending on the amount of config, the name of the config files, and how those configs would be listed. The goal is to raise an error in the future.
2019-03-01Move size=all binary clause prunning to v3_kernelJosé Valim
The advantage of moving it up is that it reduces the size of the code emitted by v3_kernel, speeding v3_kernel itself and beam_kernel_to_ssa pass.
2019-03-01Optimize v3_kernel for thousands of clausesJosé Valim
Prior to this patch, v3_kernel would do multiple passes on the clauses to group them. This commit unrolls those passes, making v3_kernel up to 10% faster in those cases.
2019-03-01Add a comment about the time complexity of beam_ssa_deadBjörn Gustavsson
2019-03-01Pass the from node as a function argument instead of in a mapBjörn Gustavsson
This is cleaner and slightly faster.
2019-03-01Do some minor optimizations of compilation timesBjörn Gustavsson
The general complexity of the shortcut sub pass of `beam_ssa_dead` is quadratic, but those optimizations will reduce the constant factor somewhat.
2019-03-01Keep the set of unset variables as small as possibleBjörn Gustavsson
Refactor the code to avoid putting any variable from a skippable block into the set of unset variables. Keeping the set of unset variables as small as possible will make beam_ssa_dead almost twice as fast when compiling lib/unicode/tokenizer.ex in elixir.
2019-02-28ssl: Fix type spec for handshake_history()Péter Dimitrov
handshake_history() was specified as {[binary()], [binary[]]}, although its real type was {iodata(), iodata()}, dialyzer did not give a warning until a new function matched out an element of handshake_history and used it as input data for crypto:hash/2. Change-Id: I60660e7296a52bf69bd7198a4cffee8338907726
2019-02-28Merge branch 'hans/crypto/bad_ret_fips/master/OTP-15634'Hans Nilsson
* hans/crypto/bad_ret_fips/master/OTP-15634: crypto: Fix FIPS mode
2019-02-28Merge branch 'hans/crypto/bad_ret_fips/OTP-15634' into maintHans Nilsson
* hans/crypto/bad_ret_fips/OTP-15634: crypto: Fix bad return value for aes_cfb8 and aes_cfb128 if FIPS_SUPPORT crypto: Fix bad return code for eddsa if FIPS_SUPPORT
2019-02-28Merge branch 'bjorn/cuddle-with-tests'Björn Gustavsson
* bjorn/cuddle-with-tests: Fix failing test case binary_module_SUITE:copy/1 Fix failing test case qlc_SUITE:lookup2/1
2019-02-28beam_ssa_opt: Use is_tagged_tuple moreBjörn Gustavsson
Consider this code: foo(X) -> case X of {ok,A} -> A; error -> X end. The `is_tagged_tuple` instruction would not be used because not all instructions in the tuple matching sequence had the same failure label: function t:foo(_0) { 0: @ssa_bool:7 = bif:is_tuple _0 br @ssa_bool:7, label 8, label 4 8: @ssa_arity = bif:tuple_size _0 @ssa_bool:9 = bif:'=:=' @ssa_arity, literal 2 br @ssa_bool:9, label 6, label 3 6: _4 = get_tuple_element _0, literal 0 @ssa_bool = bif:'=:=' _4, literal ok br @ssa_bool, label 5, label 3 5: _3 = get_tuple_element _0, literal 1 ret _3 4: @ssa_bool:11 = bif:'=:=' _0, literal error br @ssa_bool:11, label 10, label 3 10: ret _0 3: _2 = put_tuple literal case_clause, _0 %% t.erl:5 @ssa_ret:12 = call remote (literal erlang):(literal error)/1, _2 ret @ssa_ret:12 } Enhance the ssa_opt_record optimization to use `is_tagged_tuple` even if all failure labels are not the same: function t:foo(_0) { 0: @ssa_bool:7 = bif:is_tuple _0 br @ssa_bool:7, label 8, label 4 8: @ssa_bool:9 = is_tagged_tuple _0, literal 2, literal ok br @ssa_bool:9, label 6, label 3 6: _3 = get_tuple_element _0, literal 1 ret _3 4: @ssa_bool:11 = bif:'=:=' _0, literal error br @ssa_bool:11, label 10, label 3 10: ret _0 3: _2 = put_tuple literal case_clause, _0 %% t.erl:5 @ssa_ret:12 = call remote (literal erlang):(literal error)/1, _2 ret @ssa_ret:12 } The tuple test will be repeated, but since four instructions are replaced by two instructions, the code will still be faster and smaller.
2019-02-28beam_ssa_opt: Order consecutive get_tuple_element instructionsBjörn Gustavsson
2019-02-28Merge branch 'john/compiler/refactor-validator-type-management'John Högberg
* john/compiler/refactor-validator-type-management: beam_validator: Clarify a comment beam_validator: Make call argument validation stricter beam_validator: Don't explode when building terms in receive beam_validator: Improve 'binary' type tracking beam_validator: Infer tuple element types beam_validator: Tolerate the 'receive' hack in prim_eval beam_validator: Track types by value rather than by register beam_validator: Disregard 'none' on join beam_validator: Handle is_number, and join(float,int) -> number beam_validator: Treat is_nil as is_eq_exact with nil beam_validator: Simplify get_element_type beam_validator: Fix literal handling in meet/2 beam_validator: Use literals as keys in container (tuple) elements beam_validator: Refactor try/catch handling, again beam_validator: Refactor register initialization beam_validator: Refactor stack allocation beam_validator: Handle argument/return types for more functions beam_validator: Don't forget last element when using put_tuple beam_jump: Fail label of select_val is unsafe for move elimination cerl_sets: Use maps:filter/2 in filter/2
2019-02-27beam_validator: Clarify a commentJohn Högberg
2019-02-27crypto: Fix FIPS modeHans Nilsson
There were some bad values returned if FIPS mode was enabled. The exclusion of algorithms were not completly correct either.
2019-02-27Merge branch 'maint'Hans Nilsson
* maint: crypto: Remove assertion crypto: Fail if FIPS mode is present but can't be enabled crypto: Remove blowfish_SUITE. crypto: Update crypto_SUITE checking of FIPS
2019-02-27crypto: Remove assertionHans Nilsson
This is not needed any more
2019-02-27crypto: Fail if FIPS mode is present but can't be enabledHans Nilsson
2019-02-27crypto: Remove blowfish_SUITE.Hans Nilsson
The tests are a subset of the newer and larger crypto_SUITE.
2019-02-27crypto: Update crypto_SUITE checking of FIPSHans Nilsson
The testing for not supported were missing in some cases
2019-02-27beam_validator: Make call argument validation stricterJohn Högberg
We used to cheat by checking if it were possible to meet the Given and Required types, which caught the most common problems but potentially let tuple element conflicts pass through. This was a compromise to let the thing "work" while we were refactoring the validator, but we can be a lot stricter now that its type tracking capabilities approach those of the type optimization pass.
2019-02-27beam_validator: Don't explode when building terms in receiveJohn Högberg
Building terms with fragile contents is okay because the GC is disabled during loop_rec, and the resulting term won't be reachable from the root set afterwards. ERL-862
2019-02-27beam_validator: Improve 'binary' type trackingJohn Högberg
2019-02-27beam_validator: Infer tuple element typesJohn Högberg
This is possible now that we track types on a per-value basis, and no longer need to care whether the source tuple's register has been clobbered by the time we infer the type.
2019-02-27beam_validator: Tolerate the 'receive' hack in prim_evalJohn Högberg
2019-02-27beam_validator: Track types by value rather than by registerJohn Högberg
This is a rather subtle but important distinction. While tracking types on a per-register basis is fairly effective, it forces us to track which registers alias each other, and makes it tricky to infer types over large blocks of code as instruction arguments may have been clobbered between definition and inference. Tracking types on a per-value basis makes us immune to these problems.
2019-02-27Merge branch 'maint'Hans Bolinder
* maint: edoc: Print a helpful message if reading source file fails
2019-02-27Merge branch 'hasse/edoc/helpful_message/OTP-15605/ERL-841' into maintHans Bolinder
* hasse/edoc/helpful_message/OTP-15605/ERL-841: edoc: Print a helpful message if reading source file fails
2019-02-27Fix failing test case binary_module_SUITE:copy/1Björn Gustavsson
The stronger compiler optimizations made the test case fail.
2019-02-27Fix failing test case qlc_SUITE:lookup2/1Björn Gustavsson
5239eb0c62a9 removed some optimizations in `sys_core_fold`, and because of that two warnings are no longer emitted.
2019-02-27Revert "Prepare release"Rickard Green
This reverts commit df130102cdeca8d35fec95a0c926fd1cfec54eab.
2019-02-27beam_validator: Disregard 'none' on joinJohn Högberg
2019-02-27beam_validator: Handle is_number, and join(float,int) -> numberJohn Högberg
I have no idea how this escaped us for so long...
2019-02-27beam_validator: Treat is_nil as is_eq_exact with nilJohn Högberg
2019-02-27beam_validator: Simplify get_element_typeJohn Högberg
2019-02-27beam_validator: Fix literal handling in meet/2John Högberg
2019-02-27beam_validator: Use literals as keys in container (tuple) elementsJohn Högberg
2019-02-27beam_validator: Refactor try/catch handling, againJohn Högberg
2019-02-27beam_validator: Refactor register initializationJohn Högberg
2019-02-27beam_validator: Refactor stack allocationJohn Högberg
2019-02-26beam_validator: Handle argument/return types for more functionsJohn Högberg
2019-02-26beam_validator: Don't forget last element when using put_tupleJohn Högberg
2019-02-26beam_jump: Fail label of select_val is unsafe for move eliminationJohn Högberg
Consider the following code: bme(Int) -> TagInt = Int band 2#111, Tag = case TagInt of 0 -> a; 1 -> b; 2 -> c; 3 -> d; 4 -> e; 5 -> f; 6 -> g; 7 -> h end, case Tag of g -> expects_g(TagInt, Tag); h -> expects_h(TagInt, Tag); _ -> Tag = id(Tag), ok end. expects_g(6, Atom) -> Atom = id(g), ok. expects_h(7, Atom) -> Atom = id(h), ok. The type optimization pass would recognize that TagInt can only be [0 .. 7], so the first 'case' would select_val over [0 .. 6] and swap out the fail label with the block for 7. A later optimization would merge this block with 'expects_h' in the second case, as the latter is only reachable from the former. ... but this broke down when the move elimination optimization didn't take the fail label of the first select_val into account. This caused it believe that the only way to reach 'expects_h' was through the second case when 'Tag' =:= 'h', which made it remove the move instruction added in the first case, passing garbage to expects_h/2.
2019-02-26erl_docgen: Prettify c-function argument listsSverker Eriksson
with line breaks before each argument. Q: Why the 'APPLY' hack to "title_link"? A: I found no way to make a <br> survive when passed through <xsl:with-param>.
2019-02-26crypto: Fix bad return value for aes_cfb8 and aes_cfb128 if FIPS_SUPPORTHans Nilsson
2019-02-26Prepare releaseErlang/OTP
2019-02-25cerl_sets: Use maps:filter/2 in filter/2John Högberg
This should be slightly more efficient than converting to/from lists for large sets.
2019-02-25crypto: Fix bad return code for eddsa if FIPS_SUPPORTHans Nilsson
2019-02-25Merge branch 'siri/rsh-ssh/PR-1787'Hans Bolinder
OTP-15633 * siri/rsh-ssh/PR-1787: Fix some missed comments about rsh Document the restrictions on the -rsh command Use ssh as the default remote shell