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* bjorn/cuddle-with-tests: (23 commits)
rand_SUITE: Speed up basic_stats/1
base64_SUITE: Speed up roundtrip/1
lists_SUITE: Test lists:concat/2
lists_SUITE: Test lists:split/2
lists_SUITE: Add a test case for lists:prefix/2
lists_SUITE: Add hof/1 to test all high-order functions
lists_SUITE: Add test for lists:takewhile/1
lists_SUITE: Run test cases in each group in parallel
lists_SUITE: Test lists:keyreplace/4
lists_SUITE: Extend flatten/1 test to also test flatlength/1
lists_SUITE: Correct test of lists:flatten/2
id_transform_SUITE: Modernize test suite
io_proto_SUITE: Speed up determination of default shell
io_proto_SUITE: Refactor up rtnode() and friends
gen_event_SUITE: Remove unnecessary sleep calls
proc_lib: Improve coverage for crash/1
proc_lib_SUITE: Eliminate compiler warnings
io_SUITE: Add coverage/1 to completely cover io_lib_pretty
io_SUITE: Extend coverage of code for testing printable chars
io_SUITE: Speed up test for bad +pc option
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* c-rack/fix-typo3:
Fix typo in call_last/3 spec
Fix typo
Fix typo: message to send is in x(1) not x(0)
Fix another small typo
Fix typo
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Make sure that all warnings produced when compiling the
test suite contains filenames and line numbers.
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Instruction get_map_elements might destroy target registers when the fail-label is taken.
Only seen for patterns with two, and only two, target registers.
Specifically: we copy one register, and then jump.
foo(A,#{a := V1, b := V2}) -> ...
foo(A,#{b := V}) -> ...
call foo(value, #{a=>whops, c=>42}).
corresponding assembler:
{test,is_map,{f,5},[{x,1}]}.
{get_map_elements,{f,7},{x,1},{list,[{atom,a},{x,1},{atom,b},{x,2}]}}.
%% if 'a' exists but not 'b' {x,1} is overwritten, jump {f,7}
{move,{integer,1},{x,0}}.
{call_only,3,{f,10}}.
{label,7}.
{get_map_elements,{f,8},{x,1},{list,[{atom,b},{x,2}]}}.
%% {x,1} (src) is read with a corrupt value
{move,{x,0},{x,1}}.
{move,{integer,2},{x,0}}.
{call_only,3,{f,10}}.
The fix is to remove 'opt_moves' pass for get_map_elements instruction
in the case of two or more destinations.
Reported-by: Valery Tikhonov
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regressions_SUITE will have code snippets which previously crashed the compiler.
This commits includes a test for Maps crash in beam_bool.
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Before beam_split the get_map_elements instruction is still in
blocks and the helper function in beam_jump did not reflect this.
Reported-by: Quviq twitter account
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* bjorn/compiler/spurious-warning:
sys_core_fold: Eliminate warnings for unused terms in effect context
sys_core_fold: Eliminate warnings for unused terms
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* bjorn/compiler/doc:
Update compiler documentation
(Sneaking in OTP-12769 here which is a release note for syntax_tools.
Sorry about that.)
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Language cleaned up by the technical writer tmanevik from
Combitech. Proofreading and corrections by Björn Gustavsson.
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* egil/opt-compile-time/OTP-12774:
stdlib: Relax erl_anno_SUITE:is_anno/1 test
Update primary bootstrap
compiler: Use Maps as type information
compiler: Use Maps instead of dict in beam_jump
compiler: Use cerl_sets instead of gb_sets in beam_type
compiler: Use Maps instead of gb_trees in beam_dead
compiler: Use cerl_sets instead of gb_sets in beam_jump
compiler: Use cerl_sets instead of sets in v3_kernel
compiler: Use cerl_sets instead of gb_sets in sys_core_fold
compiler: Add cerl_sets module
compiler: Scope uses gb_sets not gb_trees
beam_dict: Use Maps to map function name indices
beam_dict: Use Maps to map line indices
beam_dict: Use Maps to map atom indices
v3_codegen: Use Maps to map local functions
v3_life: Refactor variable db
compiler: Use lc instead of map/1 in v3_codegen
stdlib: Optimize erl_anno:is_string/1
Conflicts:
bootstrap/lib/kernel/ebin/inet_dns.beam
bootstrap/lib/stdlib/ebin/erl_anno.beam
bootstrap/lib/stdlib/ebin/erl_lint.beam
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The optimization introduced in 0a0d39d351fc could cause spurious
warnings of the type: "a term is constructed, but never used".
That would happen for constructs in effect context.
To avoid those warnings, we will need to apply warning suppression
also in effect context.
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* egil/fix-compiler-beam_bsm/OTP-12758:
compiler: Add tests for beam_bsm get_map_elements
compiler: Teach beam_bsm get_map_elements instruction
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Using Maps as type information container speedups files like cow_http_hd.erl
by ~500ms. Previously spent ~60% of the time in orddict:store/3.
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A sets implementation based on maps.
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Small speed increase for large files.
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In a5d724cf240a, a debug option for running eprof on a specific
compiler pass was added. That commit added a direct call to the eprof
module in the tools application, and therefore the test case
otp_SUITE:runtime_dependencies/1 would fail because xref would find a
call to the tools application, but tools is not listed as a runtime
dependency in compiler.app.
Since the 'eprof' option is only likely to be used by compiler
maintainers, we don't want a real dependency to the tools application.
Therefore, use c:appcall/4 to hide the call to the eprof module (and
to report the error nicely if the tools application is missing).
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Allows for 'creation of sub binary delayed' optimization if
map instructions are in a clause.
Reported-by: José Valim
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The optimization introduced in 0a0d39d351fc would cause spurious
warnings of the type: "a term is constructed, but never used".
To avoid the warning, we must mark not only tuples and lists as
compiler_generated, but also each element. We must also propagate
compiler_generated annotations in lets. For example, if we have:
let <X -| ['compiler_generated']> = 42 in X + 1
we must propagate the compiler_generated annotation to the literal
when do constant propagation:
42 -| ['compiler_generated'] + 1
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This reverts commit e09dd66dc4d89c62ddfd8c19791f9678d5d787c6.
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* nox/compiler/parse_transform-undef/OTP-12723:
Properly report unknown parse transforms
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* bjorn/compiler/misc:
test_lib: Simplify uniq/0
beam_dict: Correct comparison in opcode/2
beam_utils: Re-use the local helper function drop_labels/1
beam_asm: Speed up encoding of large numbers
compilation_SUITE: Speed up the self_compile test cases
beam_listing: Optimize writing of .S files
v3_core, v3_codegen: Eliminate old-style catches
cerl_inline: Replace old-style 'catch' with 'try'...'catch'
sys_core_fold: Suppress warnings better
beam_utils: Teach check_liveness/3 to understand get_map_elements
Teach beam_trim to handle map instructions
beam_utils: Be less conservative about liveness for exit instructions
beam_validator: Stop validating the 'aligned' flag for binaries
beam_validator: Clean up updating of types for y register
beam_validator: Remove support for removed BIF fault/1,2
beam_validator: Correct merging of states
beam_validator: Correct merging of y registers
sys_pre_expand: Remove unused fields in #expand{} record
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