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* bjorn/warnings-zero-tolerance:
Turn warnings to errors on selected applications
runtime_tools_sup: Eliminate warning
inet_parse: Eliminate a compiler warning
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This reverts commit 750ecdea08fa5fa7e32b7f3019eed96c1699427e, reversing
changes made to 2cfa0466c3b3c7bd5e3621aff0f3e2ca30addb68.
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* bjorn/compiler/binary-syntax-bug/OTP-10724:
compiler: Eliminate internal consistency failure in binary matching
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The following code:
check(<<"string">>, a1) ->
one;
check(_, a2) ->
two;
check(undefined, a3) ->
three.
produces an internal consistency failure:
check: function check/2+17:
Internal consistency check failed - please report this bug.
Instruction: {test,is_eq_exact,{f,7},[{x,0},{atom,undefined}]}
Error: {match_context,{x,0}}:
Actually, in the current implementation of the run-time system,
comparing a match context to an atom is safe, so I briefly considered
updating the beam_validator to let this code pass through. I
abandoned that approach because not all terms would be safe to
compare to a match context, and the implementation might change
in the future.
Therefore, fix this problem by not allowing any matching of non-variables
(in the argument position for binary being matched) following binary
matching. That solution is simple and safe, and since this kind of
code seems to be rare in practice, there is no need to pursue any
more compilicated solution.
Reported-by: Viktor Sovietov
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* nox/enable-silent-rules/OTP-10726:
Implement ./otp_build configure --enable-silent-rules
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* bjorn/remove-parameterized-modules/OTP-10616:
Remove support for parameterized modules
xref_SUITE: Don't test parameterized modules
shell_SUITE: Don't test parameterized modules
erl_expand_records_SUITE: Don't test parameterized modules
erl_eval: Don't test parameterized modules
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* nox/rm-reverse-eta-conversion/OTP-10682:
Don't use fun references in cprof_SUITE
Make trace_local_SUITE work without the reverse eta conversion
Remove the reverse eta-conversion from v3_kernel
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* nox/promote-inline_list_funcs/OTP-10690:
Raise a function_clause error with the right arguments when inlining
Properly guard against badly-typed arguments when inlining
Make inlined list functions fail with function_clause
Document compiler option 'inline_list_funcs'
Silence some wrong warnings triggered by inline_list_funcs
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Local fun variables are disallowed in both Erlang and Core Erlang guards
but core_lint doesn't detect this kind of error, making the compilation
fail later in the BEAM assembly generation. A guard is added to only
allow #c_var{} terms where the name is an atom or an integer, which is
the type used by the inliner when introducing new variables.
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The inlined lists functions raised an error with only the list instead
of all their given arguments.
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The inlining code for inline_list_funcs silenced the function_clause
error that should occur when calling lists:map(3.5, []).
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The function_clause errors produced by inline_list_funcs should properly
be annotated with their function names to avoid kernel_v3 making them
into case_clauses errors. See v3_kernel:translate_match_fail_1/4.
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With silent rules, the output of make is less verbose and compilation
warnings are easier to spot. Silent rules are disabled by default and
can be disabled or enabled at will by make V=0 and make V=1.
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Expect modifications, additions and corrections.
There is a kludge in file_io_server and
erl_scan:continuation_location() that's not so pleasing.
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Local function references should be handled directly as a make_fun
internal BIF call instead of creating an extra lambda function every
time they are used.
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The handling of bs_start_match2 was both too conservative and too
careless. It was too conservative in that would not do the
optimization if the were copies of the match state in other
registers. It was careless in that it did not consider the
failure branch.
Reorganize the code and fix both these issues. Add a test case
to test that the failure branch is considered.
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When determining whether the delayed creation of sub-binaries
optimizations is applicable, this module some tests whether the
register containg the match state is killed. That is actually a
stronger condition than necessary; since the register is initialized,
it suffices to test whether the register is unused.
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Generate slightly smaller and faster code.
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* maint:
Fix compiler crash for binary matching and a complicated guard
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Commit c4375a62cfaabfd8de757f59714623ba1a8cb915 added a parallel
group, but incorrectly, so no test cases at all were run in
receive_SUITE.
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The compiler would crash when attempting to compile a function
head that did binary matching and had a complex expression using
'andalso' and 'not'.
Noticed-by: José Valim
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Code like `lists:map(fun(X) -> X end, ?C10k), ok` triggers the following
warning:
no_file:none: Warning: a term is constructed, but never used
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It should be beam_except_SUITE, since it tests the beam_except
module (introduced in 726f6e4c7afe8ce37b30eedbebe583e7b9bfc51b).
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Run testcases in parallel will make the test suite run slightly
faster. Another reason for this change is that we want more testing
of parallel testcase support in common_test.
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We were too conservative when handling a call when there were copies of
the match context in both x and y registers. Don't give up if there
is are copies of the match context in y registers, as long as those
copies are killed by the code that follows the call.
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Somewhat reduce the code bloat by eliminating special cases.
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Somewhat reduce code bloat.
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Eliminate some code bloat.
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Rewrite the five binary creation instructions to a bs_init
instruction, in order to somewhat reduce code bloat.
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We can remove some code bloat by handling the special instructions
as BIF instructions in the optimization passes. Also note that
bs_utf*_size was not handled by beam_utils:check_liveness/3
(meaning the conservative answer instead of the correct answer
would be returned).
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Seven bs_put_* instructions can be combined into one generic bs_put
instruction to avoid some code bloat. That will also improve some
optimizations (such as beam_trim) that did not handle all bs_put*
variants.
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Since we always want to remove unused labels directly after code
generation (whether we'll run the optimization passes or not),
we can simplify the code by doing it in beam_a.
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Introduce the mandary beam_a pass that will be run directly after code
generation, and the mandatory beam_z pass that will be run just before
beam_asm. Since these passes surround the optimizations, beam_a can
(for example) do instruction renaming to simplify the optimization
passes and beam_z can undo those renamings.
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