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2017-04-20compile: Remove the r12 through r15 optionsBjörn Gustavsson
The main purpose of these options is compatibility with old Erlang systems. Since it is no longer possible to communicate with R15B or earlier, we no longer need the r12 through r15 options.
2017-04-19Enhance type-driven optimisation in beam_type.erlMichal Muskala
* kill type information only for affected registers in get_map_elements * bs_get_utf* will produce integers of unicode range This optimises code created by Elixir compiler, where: <<x::utf8,_::binary>> when x in 1..10 will compile the guard to is_integer(X) andalso X >= 1 andalso X =< 10 This allows us to eliminate the is_integer check. * bs_get_float will produce a float * allow to carry type information over other bs instructions killing only the affected registers * kill only x registers after call_fun and apply instructions
2017-04-12Correct compile_SUITE:core_roundtrip/1Björn Gustavsson
The test is supposed to compare the Core Erlang code that has been printed and parsed back. It did compare and print any differences, but it did not fail when there were differences. Also fix problems with variable names and maps not comparing equal when the inliner has been used.
2017-04-12Atoms in Core Erlang must be encoded in UTF-8Björn Gustavsson
core_scan will now support and require atoms encoded in UTF-8.
2017-03-24compiler: Cover beam_record in testsBjörn-Egil Dahlberg
2017-03-24compiler: Add is_tagged_tuple instructionBjörn-Egil Dahlberg
Rewrite the instruction stream on tagged tuple tests. Tagged tuples means a tuple of any arity with an atom as its first element. Typically records, ok-tuples and error-tuples. from: ... {test,is_tuple,Fail,[Src]}. {test,test_arity,Fail,[Src,Sz]}. ... {get_tuple_element,Src,0,Dst}. ... {test,is_eq_exact,Fail,[Dst,Atom]}. ... to: ... {test,is_tagged_tuple,Fail,[Src,Sz,Atom]}. ...
2017-03-21compiler tests: Eliminate creation of untracked filesBjörn Gustavsson
Two dummy .erl files are created while releasing the tests for the compiler. Remove the files after they have been copied to the release directory to avoid that they show up as untracked files in the output of "git status".
2017-03-15Merge pull request #1374 from bjorng/bjorn/compiler/fix-beam_typeBjörn Gustavsson
beam_type: Avoid an internal consistency check failure
2017-03-14Merge branch 'maint'Rickard Green
* maint: Updated OTP version Prepare release Conflicts: OTP_VERSION lib/typer/doc/src/notes.xml lib/typer/vsn.mk
2017-03-14Prepare releaseErlang/OTP
2017-03-13beam_type: Avoid an internal consistency check failureBjörn Gustavsson
Code such as the following: -record(x, {a}). f(R, N0) -> N = N0 / 100, if element(1, R#x.a) =:= 0 -> N end. would fail to compile with the following message: m: function f/2+19: Internal consistency check failed - please report this bug. Instruction: {fmove,{fr,0},{x,1}} Error: {uninitialized_reg,{fr,0}}: This bug was introduced in 348b5e6bee2f. Basically, the beam_type pass placed the fmove instruction in the wrong place. Instructions that store to floating point registers and instructions that read from floating point registers are supposed to be in the same basic block. Fix the problem by flushing all floating points instruction before a call the pseudo-BIF is_record/3, thus making sure that the fmove instruction is placed in the correct block. Here is an annotated listing of the relevant part of the .S file (before the fix): {test_heap,{alloc,[{words,0},{floats,1}]},2}. {fconv,{x,1},{fr,0}}. {fmove,{float,100.0},{fr,1}}. fclearerror. {bif,fdiv,{f,0},[{fr,0},{fr,1}],{fr,0}}. {fcheckerror,{f,0}}. %% The instruction {fmove,{fr,0},{x,1}} should have %% been here. %% Block of instructions expanded from a call to %% the pseudo-BIF is_record/3. (Expanded in a later %% compiler pass.) {test,is_tuple,{f,3},[{x,0}]}. {test,test_arity,{f,3},[{x,0},2]}. {get_tuple_element,{x,0},0,{x,2}}. {test,is_eq_exact,{f,3},[{x,2},{atom,x}]}. {move,{atom,true},{x,2}}. {jump,{f,4}}. {label,3}. {move,{atom,false},{x,2}}. {label,4}. %% End of expansion. %% The fmove instruction that beam_validator complains %% about. {fmove,{fr,0},{x,1}}. Reported-by: Richard Carlsson
2017-03-10Update copyright yearRickard Green
2017-03-08compiler: Fix handling of locations and annotationsHans Bolinder
2017-02-27Merge branch 'maint'Björn Gustavsson
* maint: Documentation: use behaviour(ssh_daemon_channel) Fix minor typo in compile:forms/1 doc
2017-02-27v3_core: Combine binary strings to larger integersBjörn Gustavsson
Binary construction that mixes long literal strings with variables will make Dialyzer slow. Example: <<"long string (thousand of characters)",T/binary>> The string literals in binary construction is translated to one binary segment per character; all those segments will slow down Dialyzer. We can speed up Dialyzer if we combine several characters (up to 256) to a signle segment in the binary. It will also slightly speed up the compiler. This optimization will make core listings file with binary strings harder to read, but they were not that easy to read before this change. ERL-308
2017-02-26Fix minor typo in compile:forms/1 docPéter Gömöri
2017-02-12Add extra_chunks option to compileJosé Valim
This allow languages such as Elixir and LFE to attach extra chunks to the .beam file without having to parse the beam file after compilation. This commit also cleans up the interface to beam_asm, allowing chunks to be passed from the compiler without a need to change beam_asm API on every new chunk.
2017-02-01Merge branch 'josevalim/atu8-chunk/PR-1078/OTP-14178'Björn Gustavsson
* josevalim/atu8-chunk/PR-1078/OTP-14178: Add new AtU8 beam chunk
2017-01-30Add new AtU8 beam chunkJosé Valim
The new chunk stores atoms encoded in UTF-8. beam_lib has also been modified to handle the new 'utf8_atoms' attribute while the 'atoms' attribute may be a missing chunk from now on. The binary_to_atom/2 BIF can now encode any utf8 binary with up to 255 characters. The list_to_atom/1 BIF can now accept codepoints higher than 255 with up to 255 characters (thanks to Björn Gustavsson).
2017-01-25Update test cases for erlang:hash/2 removalBjörn-Egil Dahlberg
2017-01-17Merge branch 'maint'Björn-Egil Dahlberg
2017-01-17Merge branch 'egil/cuddle-tests' into maintBjörn-Egil Dahlberg
* egil/cuddle-tests: stdlib: Increase timetrap for rand_SUITE common_test: Increase timetrap for cth_hooks_SUITE compiler: Increase timetrap timeouts for lc_SUITE
2017-01-12Makefile: Warn for missings specBjörn Gustavsson
2017-01-12Add specs for the beam_*:module/2 functionsBjörn Gustavsson
2017-01-12beam_trim: Add types and specsBjörn Gustavsson
2017-01-12beam_listing: Add types and specsBjörn Gustavsson
2017-01-12beam_jump: Add types and specsBjörn Gustavsson
2017-01-12beam_except: Add types and specsBjörn Gustavsson
2017-01-12beam_dict: Add missing types and specsBjörn Gustavsson
2017-01-12beam_clean: Add types and specsBjörn Gustavsson
2017-01-12beam_bsm: Add missing types and specsBjörn Gustavsson
Also slightly refactor the code to simplify the types.
2017-01-12v3_codegen: Add missing types and specsBjörn Gustavsson
2017-01-12sys_pre_attributes: Correct and add missing types and specsBjörn Gustavsson
2017-01-12core_scan: Add missing types and specsBjörn Gustavsson
2017-01-12compile: Add missing types and specsBjörn Gustavsson
2017-01-12cerl: Add missing types and specsBjörn Gustavsson
2017-01-12v3_kernel_pp: Correct spec for format/1Björn Gustavsson
2017-01-12v3_life: Add types and specsBjörn Gustavsson
2017-01-12v3_life.hrl: Add types for all fieldsBjörn Gustavsson
2017-01-12beam_utils: Add types and specsBjörn Gustavsson
2017-01-12beam_asm: Add common types to describe operandsBjörn Gustavsson
2017-01-12sys_pre_attributes: Remove unnecessary flexibilityBjörn Gustavsson
The compiler passes always Options as list to parse_transform/2. There is no need accept a non-list. There is also no need to handle an improper Options list. The compiler itself will crash if the Options list is improper.
2017-01-12beam_dict: Simplify the internal format of the lambda tableBjörn Gustavsson
Since Index =:= OldIndex and OldUniq =:= 0, there is no need to store OldIndex and OldUniq in the internal data structure for the lambda table.
2017-01-12Merge branch 'maint'Hans Bolinder
* maint: dialyzer: Compact 'file' annotations in Core code dialyzer: Try to reduce memory usage dialyzer: Use less memory when translating contracts dialyzer: Use maps instaed of dict dialyzer: Use maps instead of dict for module contracts map dialyzer: Compress a few more ETS tables dialyzer: Optimize memory consumption dialyzer: Reduce memory consumption during 'remote' phase dialyzer: Update code for finding parallelism compiler: Do not spawn process when dialyzing dialyzer: Reduce ETS usage during the typesig phase dialyzer: Optimize graph condensation dialyzer: Do not send full PLTs as messages
2017-01-11compiler: Do not spawn process when dialyzingHans Bolinder
Memory consumption is reduced during the compilation phase by keeping the Core parse tree shared. In particular the file annotation takes a lot of memory when not shared.
2017-01-10Improve compilation speed for huge literal case expressionsBjörn Gustavsson
Code with huge literal case expressions such as the following would compile very slowly: case "Very long literal string (thousands of characters)..." of . . . end. The reason is that in the case optimization each character in the string would be handled individually. Fix this bug by handling literals all at once.
2016-12-15compile: Reduce memory consumption during compilationBjörn Gustavsson
The compiler would keep the data structures for two compiler passes in memory. That could increase the maximum amount of memory that the compiler uses, and could also have a negative impact on performance (terms that would not be used again would be copied by a garbage collection). Here is an example that shows how the previous version of the code could get captured: a_compiler_pass(Mod, St) -> case Mod:module(St#compile.code, St#compile.options) of {ok,Code} -> {ok,St#compile{code=Code}}; ... The reference to the code from the previous pass will only be released when St is updated. We can avoid the problem by passing the current version of the code as a function argument: a_compiler_pass(Mod, Code0, St) -> case Mod:module(Code0, St#compile.options) of {ok,Code} -> {ok,Code,St}; ... In practice, this change does not seem to significantly speed up the compiler, but it does not do any harm either. It should help dialyzer in situations when dialyzer compiles several large modules at the same time.
2016-12-14Merge tag 'OTP-19.2'Dan Gudmundsson
=== OTP-19.2 === Changed Applications: - common_test-1.13 - compiler-7.0.3 - crypto-3.7.2 - dialyzer-3.0.3 - edoc-0.8.1 - erl_docgen-0.6.1 - erl_interface-3.9.2 - erts-8.2 - eunit-2.3.2 - hipe-3.15.3 - inets-6.3.4 - kernel-5.1.1 - mnesia-4.14.2 - observer-2.3 - odbc-2.12 - parsetools-2.1.4 - public_key-1.3 - runtime_tools-1.11 - sasl-3.0.2 - ssh-4.4 - ssl-8.1 - stdlib-3.2 - syntax_tools-2.1.1 - tools-2.9 - wx-1.8 Unchanged Applications: - asn1-4.0.4 - cosEvent-2.2.1 - cosEventDomain-1.2.1 - cosFileTransfer-1.2.1 - cosNotification-1.2.2 - cosProperty-1.2.1 - cosTime-1.2.2 - cosTransactions-1.3.2 - debugger-4.2.1 - diameter-1.12.1 - eldap-1.2.2 - et-1.6 - gs-1.6.2 - ic-4.4.2 - jinterface-1.7.1 - megaco-3.18.1 - orber-3.8.2 - os_mon-2.4.1 - otp_mibs-1.1.1 - percept-0.9 - reltool-0.7.2 - snmp-5.2.4 - typer-0.9.11 - xmerl-1.3.12 * tag 'OTP-19.2': Updated OTP version Prepare release Conflicts: OTP_VERSION
2016-12-09beam_type: Minimize number of regs in test_heap instructionsBjörn Gustavsson
The beam_type may pass move and recalculates test_heap instructions. The number of live registers are not always the lowest. Minimize the number of registers by running beam_utils:live_opt/1 one more time.
2016-12-09Prepare releaseErlang/OTP