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When a generator in a list comprehension was given some
other term than a list, the wrong line could be pointed
out in the exception. Here is an example:
bad_generator() ->
[I || %%This line would be pointed out.
I <- not_a_list].
https://bugs.erlang.org/browse/ERL-572
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* josevalim/atu8-chunk/PR-1078/OTP-14178:
Add new AtU8 beam chunk
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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).
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* valgrind needs a lot of time
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Either rely on the default 30 minutes timetrap, or set the timeout
using the supported methods in common_test.
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As a first step to removing the test_server application as
as its own separate application, change the inclusion of
test_server.hrl to an inclusion of ct.hrl and remove the
inclusion of test_server_line.hrl.
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649d6e73 simplified opt_simple_let_2/6 a little bit too much,
so that some list comprehensions in effect context were not
properly tail-recursive.
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We used to evaluate the body of a 'letrec' in value context, even
if the 'letrec' was being evaluated in effect context. In most
cases, the context does not matter because the body is usually
just an 'apply' which will never be optimized away.
However, in the case of incorrect code described in the previous
commit, it does matter. We can find such bad code by evaluating
the body in effect context. For example, if we have the following
incorrect code:
letrec
f/1 = fun(A) -> ... <use of Var> ...
in let Var = <<2:301>>
in apply(Arg)
If the letrec is evaluated in effect context, the code will be
reduced to:
letrec
f/1 = fun(A) -> ... <use of Var> ...
in seq Var = <<2:301>> do apply(Arg)
Now Var will be unbound and a later compiler pass will crash to
ensure that the bad Core Erlang code is noticed.
Also add a test case to ensure that the compiler crashes if the
bug fixed in the previous commit re-surfaces.
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Remove ?line macros. Run test cases in parallel.
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Code like the following snippet could make the compiler crash:
f() -> [X = a || false] ++ [X = a || false].
Reported-by: Ulf Norell
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This commit is a preparation for introducing location information
(filename/line number) in stacktraces in exceptions. Currently
a stack trace looks like:
[{Mod1,Function1,Arity1},
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{ModN,FunctionN,ArityN}]
Add a forth element to each tuple that can be used indication
the filename and line number of the source file:
[{Mod1,Function1,Arity1,Location1},
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{ModN,FunctionN,ArityN,LocationN}]
In this commit, the fourth element will just be an empty list,
and we will change all code that look at or manipulate stacktraces.
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In 3d0f4a3085f11389e5b22d10f96f0cbf08c9337f (an update to conform
with common_test), in all test_lib:recompile(?MODULE) calls, ?MODULE
was changed to the actual name of the module. That would cause
test_lib:recompile/1 to compile the module with the incorrect
compiler options in cloned modules such as record_no_opt_SUITE,
causing worse coverage.
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* bg/compiler-inliner:
pmod_SUITE: Again test inlining parameterized modules
compiler tests: Cope with missing args in function_clause for native code
compiler tests: Compile a few more modules with 'inline'
Consistently rewrite an inlined function_clause exception to case_clause
compiler tests: Test the 'inline' option better
compiler: Suppress bs_context_to_binary/1 for a literal operand
compiler: Fix binary matching bug in the inliner
sys_core_inline: Don't generated multiple compiler_generated annos
OTP-8552 bg/compiler-inliner
Several problems in the inliner have been fixed.
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Native-compiled code generates a different stack trace for
function_clause exceptions - instead of the arguments for the
function, only the arity is reported. Accept missing arguments
if the test suite is native-compiled.
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Since a function_clause exception in an inlined function will
be changed to a case_clause exception, we must test for both.
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