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Until this is reference counted it may interfere with other applications.
The performance loss should (according to the implementor) be negligible with it
always on.
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* 'bjorn/lc-warnings/OTP-11626' (early part):
v3_core: Annotate list comprehensions to help out dialyzer
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* nox/compiler/v3_core-case-arg-opt:
Optimise case arguments in sys_core_fold
Run sys_core_fold twice if any inliner is used
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* bjorn/tools/cover/OTP-11692:
cover: Use lists:reverse/1 instead of the home-brewn reverse function
cover: Remove support for ancient formats of abstract code
cover_SUITE: Run part of the test suite when cover is running
test_server: Allow cover to run on itself
cover: Support running cover on itself
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* bjorn/otp_build-small-system:
otp_build: Include parsetools in the release of a small system
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The raw_abstract_v1 format that is currently used was introduced
in R9C. Beam files that old cannot be executed by the current
run-time system, so there is no need to continue the old formats.
Removing the support will increase coverage.
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We used to skip the entire test suite if the cover server had already
been started by common_test, but that means that we will get bad
coverage for the cover module.
Modify the test suite to to run all tests case that don't explicitly
start or stop the cover server to increase the coverage. In addition,
add a special coverage_analysis/1 test case that only runs when
the cover server is already running.
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* hb/fix_unmatched_returns:
Fix a few of Dialyzer's unmatched_return warnings
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* hb/refman/type_fix:
[refmanual] Fix List in definition of pre-defined types
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* hb/stdlib/re_remove_comment:
[stdlib] Remove a confusing comment in the re module
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improper_list(Type1, Type2) has been replaced by
nonempty_improper_list(Type1, Type2).
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The line
%-opaque mp() :: {re_pattern, _, _, _, _}.
has been removed.
The mp() tuple is called 'opaque' in re(3), but it is not an opaque
type. The out-commented -opaque declaration was confusing.
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When releasing a small system like this:
./otp_build setup
./otp_build release TARGET_DIR
include the parsetools application.
In one of our internal scripts, a previously built and released
Erlang/OTP system is used to update the primary bootstrap in a
git repository. A small system could not be used for that purpose
because parsetools was missing.
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* bjorn/compiler/optimizations/OTP-11584:
Teach sys_core_fold:eval_case/2 to cope with handwritten Core Erlang
sys_core_fold: Remove a redundant word in a comment
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* nox/maps-erl_prettypr:
stdlib: Add tests for Maps in erl_prettypr
Support maps in erl_prettypr
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* nox/maps-improve-erl_eval:
Handle map fields in their own function in erl_eval
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We want to see at least some coverage of cover itself.
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* tuncer/fix-public_key-specs:
public_key(3): fix private_key/0 type definition
OTP-11627
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* fenollp/shell-expand-0arity-completely:
Shell: expand 0-arity functions all the way to closing parenthesis
OTP-11684
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* larsr/distclean:
make clean should not remove SKIP files
OTP-11683
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Add new make target 'distclean' that removes
files created by configure.
SKIP files are created by configure for instance
if configured --without-javac. They should only
be removed if one has to reconfigure, otherwise
'make clean; make' breaks.
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Starting in e12b7d5331c58b41db06cadfa4af75b78b62a2b1,
sys_core_fold:eval_case/2 will crash on handwritten but legal
Core Erlang programs such as:
case let <Var> = Arg in {'x',Var} of
{x,X} -> X
end
The problem is that the only clause *is* guaranteed to match, but
cerl_clauses:match_list/2 does not understand that; all it can say is
that the clause *may* match. In those circumstances, we will need to
keep the case.
Also make sure that we keep the case if the guard is something else
than 'true'. That is not strictly necessary, because in a legal Core
Erlang program the guard in the last clause in a case must always
evaluate to 'true', so removing the guard test would still leave the
program correct. Keeping the guard, however, will make it somewhat
easier to debug an incorrect Core Erlang program. (The unsafe_case
test case has guard test in the only clause in a case, so we don't
need to write a new test case to test that.)
Reported-by: Anthony Ramine
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If the argument of a case expression is a let, a seq or a case with two clauses
where the second one is a failing clause; it can be moved outside the case and
further optimisations can be performed.
module 'foo' ['t'/4]
attributes []
't'/4 =
fun (_cor14,Sub0,_cor15,_cor16) ->
let Ssa = call 'erlang':'get' ('foo') in
case let Ssa = {'ssa',_cor14,Sub0,_cor15,_cor16} in
let _rec11 = call 'erlang':'+' (_cor14, 1) in
let _cor4 = call 'erlang':'setelement' (2, Ssa, _rec11) in
{{'tmp',_cor14},_cor4} of
{NewReg,Foo} when 'true' ->
{NewReg,Foo,Ssa}
_cor20 when 'true' ->
primop 'match_failure' ({'case_clause',_cor20})
end
end
==>
module 'foo' ['t'/4]
attributes []
't'/4 =
fun (_cor14,Sub0,_cor15,_cor16) ->
let Ssa = call 'erlang':'get' ('foo') in
let _fol0 = {'ssa',_cor14,Sub0,_cor15,_cor16} in
let _rec11 = call 'erlang':'+' (_cor14, 1) in
let _cor4 = call 'erlang':'setelement' (2, _fol0, _rec11) in
let NewReg = {'tmp',_cor14} in
{NewReg,_cor4,Ssa}
end
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* josevalim/suppress-all-auto-imports:
Allow all auto imports to be suppressed at once
OTP-11682
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* peppe/common_test/init_per_testcase_problem:
Fix problem with logging exits that happen in init_per_testcase
OTP-11643
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* nox/debugger/erl_eval_SUITE/OTP-11676:
Truly test debugger in erl_eval_SUITE copy
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The module was not interpreted.
This surfaced two bugs, related to shadowed variables in binary patterns in
comprehension generators, and guard filters not properly detected. The guard
detection code from dbg_iload is deleted in favor of erl_lint:is_guard_test/1.
The erl_lint module is now safe to use because it can handle all expressions
emitted by sys_pre_expand, the following warning is thus obsolete and has been
removed from code:
%% Cannot use erl_lint here as sys_pre_expand has transformed source.
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* egil/compiler/maps-fix-sys_core_fold:
compiler: Fix sys_core_fold let optimization
compiler: Add debug listing after sys_core_fold
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* egil/compiler/maps-fix-codegen:
compiler: Fix codegen multiple updates for Maps
erts,compiler: Correct and amend tests for Maps
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* ia/public_key/specs:
public_key: Export some dialyzer types
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Map variable was not covered and faulty optimization could occur.
Ex.
t() ->
M0 = id(#{ "a" => 1 }),
#{ "a" := _ } = M0,
M0#{ "a" := b }.
M0 was lost in let expression optimization.
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This fixes an error on multiple updates optimization for map pairs.
The error was introduced with moving to term order in Maps.
This also fixes an error where register life time was lost for values
and could result in erroneuos values being emitted in for map pairs.
Simplified v3_codegen by moving multiple update optimizations to v3_kernel.
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Faulty test for maps update
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* nox/tools/cover-record-update:
Properly munge record updates in cover
Don't munge record and field names in cover
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* nox/eep37/OTP-11537:
Support named funs in erl_prettypr
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* vladdu/debugger/fixes:
remove warning for variable exported from case
remove useless match
remove unused parameter
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* hsv/using_lists_droplast:
lib/mnesia/test/ - Replace reverse(tl(reverse(L))) with lists:droplast/1
lib/ssh - Replace reverse(tl(reverse(L))) with lists:droplast/1
lib/wx - Replace reverse(tl(reverse(L))) with lists:droplast/1
Use lists:droplast/1 in orber/orber_interceptors.erl
Import and use lists:droplast/1 in v3_core/v3_kernel
OTP-11678
OTP-11677
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* hsv/add_droplast_to_lists:
Added documentation of lists:droplast/1
Added tests for lists:droplast/1 to stdlib/lists_SUITE
stdlib/lists: Add function droplast/1 This functions drops the last element of a non-empty list.
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* egil/erts/fix-maps-beam_load:
compiler: Update map_SUITE with error case test
erts: Maps must fail on exact updates of empty Maps
erts: Fix Maps for beam_load
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