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* nox/standard_error/OTP-12424:
Test standard_error
Properly handle broken input in standard_error
Fix io:getopts(standard_error)
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* marcus/rabbe-doc-typos2/OTP-12399:
fix spelling
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* bjorn/compiler/coverage:
map_SUITE: Ensure recompilation when running cover
Add beam_utils_SUITE to cover more lines in beam_utils
beam_utils: Remove unreachable clauses in live_opt/4
receive_SUITE: Cover handling of recv_mark & recv_set in beam_utils
beam_validator_SUITE: Mend the compiler_bug/1 test case
beam_clean: Remove handling of forgotten instructions
compile_SUITE: Test the 'dialyzer' option
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* maint:
Update primary bootstrap
core_lib: Handle patterns in map values
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* bjorn/compiler/map-pattern/OTP-12414:
core_lib: Handle patterns in map values
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beam_utils:live_opt() is only invoked on code that has been
blockified by beam_block. Therefore the allocate/3 and
allocate_heap/4 instructions only occur in their transformed
form inside a block.
While we are it, correct a comment. 'asm' has been replaced
by 'from_asm'.
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While we are it, also remove ?line macros in ref_opt_1/1 and correct
the indentation in do_ref_opt/2.
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The compiler_bug/1 test case succeeded for the wrong reason. The
'asm' option is no longer supported (was ignored) and the compiler
looked for a .erl file.
Make sure that we don't fall for this trick again by making sure
that the error is reported from beam_validator.
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io:put_chars(standard_error, [oops]) could previously crash the
standard_error process.
Reported-by: Alexei Sholik
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core_lib:is_var_used/2 would not consider a variable used in the
value of a map pattern such as:
case Map of
#{key := <<42:N>>} -> ok
end
Here the variable 'N' would not be considered used.
It was assumed that there was no need to check map patterns at
all, since maps currently don't support variables in keys.
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* mikpe/hipe-fconv-fmove-fixes/OTP-12413:
hipe: rtl: fix phi_remove_pred/2 FP moves
hipe: backends: correct #fconv{} translation
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* oliv3/math_log2/OTP-12411:
Add math:log2/1
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Commits b44f86b7 and 97953704 introduced translations of instructions
in beam_a and beam_z, but forgot to remove the handling of them in
beam_clean.
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Cover more code in v3_core.
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* origin/hb/parsetools/suppress_dialyzer_warnings/OTP-12271:
Let Leex use the new -dialyzer attribute
Let Yecc use the new -dialyzer attribute
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* maint:
Update primary bootstrap
beam_bool: Correct live calculation for GC BIFs
beam_bool: Correct indentation for try...catch
sys_core_fold: Correct optimization of 'case'
Conflicts:
bootstrap/bin/start.boot
bootstrap/bin/start_clean.boot
bootstrap/lib/compiler/ebin/beam_asm.beam
bootstrap/lib/stdlib/ebin/io_lib_pretty.beam
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* bjorn/compiler/map-in-record-bug/OTP-12402:
sys_core_fold: Correct optimization of 'case'
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* bjorn/compiler/beam_bool/OTP-12410:
beam_bool: Correct live calculation for GC BIFs
beam_bool: Correct indentation for try...catch
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Suppress Dialyzer warnings for clauses the only purpose of which is to
catch bugs in Yecc.
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* hb/dialyzer/suppress_warning/OTP-10280:
dialyzer: Introduce module local suppression of warnings
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OTP-12406
* richcarl/syntax_tools-fix-bad-error-format:
fix bad format of error in epp_dodger:parse_file/3
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OTP-12405
* mikpe/hipe-arm-interworking:
hipe: fix ARM/Thumb interworking
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* arekinath/openbsd-build/OTP-12404:
Fix compile breakage on OpenBSD
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The -dialyzer() attribute can be used for suppressing warnings in a
module by specifying functions or warning options. It can also be used
for requesting warnings in a module.
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When optimizing boolean expressions, it is not always possible
to find a number of live registers for a GC BIF that both preserves
all source registers that will be tested and at the same time
does not include registers that are not initialized.
As currently implemented, we have incomplete information about
the register calculated from the free variables. Some registers
are marked as "reserved". Reserved registers means that we don't
know anything about them; they may or may not be initialized.
As a conservative correction (suitable for a maintenance release), we
will abort the optimization if we find any reserved registers when
calculating the number of live registers. We will not attempt to
improve the information about the registers in this commit.
By examining the coverage when running the existing compiler test
suite we find that the optimization is aborted 15 times (before
adding any new test cases). To put that in perspective, the
optimization is successfully applied 4927 times, and aborted for
other reasons 547 times.
Reported-by: Ulf Norell
Reported-by: Anthony Ramine
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* andreaTP/added-aes-ecb-to-crypto/OTP-12403:
aligned implementation following last specs
finally fixed docs
fixed incorrect tag
proposal of documentation
fixes and tests
add aes ecb to crypto library
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Old versions of the Erlang mode for Emacs used to indent try...catch
strangely - the first clause following the 'catch' would be indented
with one space less than the following clauses.
If we are to use the new Erlang mode when we add more clauses, they
would be indented with one space less than the preceding clauses.
That would look silly.
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The optimization of a 'case' statement could lead to incorrect
code that would cause an exception at run-time.
Here is an example to show how the optimization went wrong. Start
with the following code:
f({r,#{key:=Val},X}=S) ->
case S of
{r,_,_} ->
setelement(3, Val, S)
end.
(The record operations have already been translated to the
corresponding tuple operations.) The first step in case_opt/3 is
to substitute S to obtain:
f({r,#{key:=Val},X}=S) ->
case {r,#{key:=Val},X} of
{r,_,_} ->
setelement(3, Val, S)
end.
After that substitution the 'case' can be simplified to:
f({r,#{key:=Val},_}=S) ->
case #{key:=Val} of
NewVar ->
setelement(3, Val, S)
end.
That is the result from case_opt/3. Now eval_case/2 notices
that since there is only one clause left in the 'case', the
'case' can eliminated:
f({r,#{key:=Val},_}=S) ->
NewVar = #{key:=Val},
setelement(3, Val, S).
Since the map construction may have a side effect, it was not
eliminated, but assigned to a variable that is never used.
The problem is that '#{key:=Val}' is fine as a pattern, but in a
construction of a new map, the '=>' operator must be used. So the
map construction will fail, generating an exception.
As a conservative correction for a maintenance release, we will
abort the 'case' optimization if the substitution into the 'case'
expression is anything but data items (tuples, conses, or
literals) or variables.
Reported-by: Dmitry Aleksandrov
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* marcus/rabbe-doc-typos/OTP-12399:
fix doc typos found by Rabbe Fogelholm
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* dotsimon/sctp_paddrinfo_state:
Fix inet:getopts involving #sctp_paddrinfo{}
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* nox/http_uri-fragment/OTP-12398:
Properly parse URI fragments
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