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For reasons better explained in the source code, ssa_opt_float
skips optimizing inside guards but it failed to do so
consistently; while the pass never processed guard blocks, it was
still possible to erroneously defer error checking to a guard
block, crashing the compiler once it realized its state was
invalid.
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* john/compiler/validator-type-conflict-fix/ERL-867:
beam_validator: Express test_arity/is_tagged_tuple as type tests
beam_validator: Fix type subtraction on select_* and inequality
beam_validator: Style fix for asserts in list comprehensions
beam_validator: Infer types from bs_put instructions
beam_validator: is_map no longer needs special treatment
beam_validator: Refactor type conflict resolution
beam_validator: Refactor branch handling
beam_validator: Fix element/2 BIF handling
beam_validator: Rename get_move_term_type and clean up get_raw_type
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This ensures that unreachable branches are properly ignored on
repeated checks (although tuple type subtraction isn't complete
yet).
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Type subtraction never resulted in the 'none' type, even when it
was obvious that it should. Once that was fixed it became apparent
that inequality checks also fell into the same subtraction trap
that the type pass warned about in a comment.
This then led to another funny problem with select_val, consider
the following code:
{bif,'>=',{f,0},[{x,0},{integer,1}],{x,0}}.
{select_val,{x,0},{f,70},{list,[{atom,false},{f,69},
{atom,true},{f,68}]}}.
The validator knows that '>=' can only return a boolean, so once it
has subtracted 'false' and 'true' it killed the state because all
all valid branches had been taken, so validation would crash once
it tried to branch off the fail label.
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* hans/ssh/cuddle_tests:
crypto: Filter test case ciphers for supported ones
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* rickard/bootstrap-build-fix:
Fix build of bootstrap
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The current type conflict resolution works well for the example
case in the comment, but doesn't handle branched code properly,
consider the following:
{label,2}.
{test,is_tagged_tuple,{f,ignored},[{x,0},3,{atom,r}]}.
{allocate_zero,2,1}.
{move,{x,0},{y,0}}.
%% {y,0} is known to be {r, _, _} now.
{get_tuple_element,{x,0},2,{x,0}}.
{'try',{y,1},{f,3}}.
%% ... snip ...
{jump,{f,5}}.
{label,3}.
{try_case,{y,1}}.
%% {x,0} is the error class (an atom), {x,1} is the error term.
{test,is_eq_exact,{f,ignored},[{x,0},{y,0}]}.
%% ... since tuples and atoms can't meet, the type of {y,0} is
%% now {atom,[]} because the current code assumes the type
%% we're updating with.
{move,{x,1},{x,0}}.
{jump,{f,5}}.
{label,5}.
%% ... joining tuple (block 2) and atom (block 3) means 'term',
%% so the get_tuple_element instruction fails to validate
%% despite this being unrechable from block 3.
{test_heap,3,1}.
{get_tuple_element,{y,0},1,{x,1}}.
{put_tuple2,{x,0},{list,[{x,1},{x,0}]}}.
{deallocate,2}.
return.
This commit kills the state on type conflicts, making unreachable
instructions truly unreachable.
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While complex_test made certain branching instructions a lot easier
to read, we're still using `branch_state` for many others which is
hard to read and makes it impossible to "abort" branches on type
conflicts.
This commit replaces nearly all uses of `branch_state` with a
general branching mechanism, improving readability and paving the
way for proper type conflict resolution.
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* rickard/emd2exml-fix-18/OTP-13621:
Adjust generated XML so it respects current DTD
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* rickard/make-fixes-21/OTP-15551:
Fix install phase in build system
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* rickard/make-fixes-22/OTP-15551:
Fix install phase in build system
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* rickard/make-fixes-21/OTP-15551:
Fix install phase in build system
- Install of (mainly) documentation caused rebuild and
modification of the source tree even when the source
previously had been built. Also otp_patch_apply
modified the source tree when updating documentation.
This messed up the installation if installation was
performed by another user than the user that originally
built the system which not is an uncommon scenario.
- Some documentation was installed by copying files
instead of installing the files which caused faulty
access rights on files.
- The documentation was not properly updated when
applying a patch using otp_patch_apply.
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* rickard/make-fixes-20/OTP-15551:
Fix install phase in build system
- Install of (mainly) documentation caused rebuild and
modification of the source tree even when the source
previously had been built. Also otp_patch_apply
modified the source tree when updating documentation.
This messed up the installation if installation was
performed by another user than the user that originally
built the system which not is an uncommon scenario.
- Some documentation was installed by copying files
instead of installing the files which caused faulty
access rights on files.
- The documentation was not properly updated when
applying a patch using otp_patch_apply.
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* rickard/make-fixes-19/OTP-15551:
Fix install phase in build system
- Install of (mainly) documentation caused rebuild and
modification of the source tree even when the source
previously had been built. Also otp_patch_apply
modified the source tree when updating documentation.
This messed up the installation if installation was
performed by another user than the user that originally
built the system which not is an uncommon scenario.
- Some documentation was installed by copying files
instead of installing the files which caused faulty
access rights on files.
- The documentation was not properly updated when
applying a patch using otp_patch_apply.
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* rickard/make-fixes-18/OTP-15551:
Fix install phase in build system
- Install of (mainly) documentation caused rebuild and
modification of the source tree even when the source
previously had been built. Also otp_patch_apply
modified the source tree when updating documentation.
This messed up the installation if installation was
performed by another user than the user that originally
built the system which not is an uncommon scenario.
- Some documentation was installed by copying files
instead of installing the files which caused faulty
access rights on files.
- The documentation was not properly updated when
applying a patch using otp_patch_apply.
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* rickard/make-fixes-17/OTP-15551:
Fix install phase in build system
- Install of (mainly) documentation caused rebuild and
modification of the source tree even when the source
previously had been built. Also otp_patch_apply
modified the source tree when updating documentation.
This messed up the installation if installation was
performed by another user than the user that originally
built the system which not is an uncommon scenario.
- Some documentation was installed by copying files
instead of installing the files which caused faulty
access rights on files.
- The documentation was not properly updated when
applying a patch using otp_patch_apply.
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- Install of (mainly) documentation caused rebuild and
modification of the source tree even when the source
previously had been built. Also otp_patch_apply
modified the source tree when updating documentation.
This messed up the installation if installation was
performed by another user than the user that originally
built the system which not is an uncommon scenario.
- Some documentation was installed by copying files
instead of installing the files which caused faulty
access rights on files.
- The documentation was not properly updated when
applying a patch using otp_patch_apply.
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Clarify in the docs that (NEW_)FLOAT_EXT must be finite
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* peterdmv/ssl/hello-retry-request/OTP-15590:
ssl: Fix type spec for handshake_history()
ssl: Add tests for hello_retry_request and groups
ssl: Implement 'hello_retry_request'
Change-Id: I04ad2860d0ba81462a1e36c7d6fcee6bc5c98c32
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* sverker/to_erl-utf8/ERL-854:
erts: Remove 7-bit ASCII limitation in to_erl
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* sverker/erl_docgen/prettify-cfunc-docs/OTP-15637:
erl_docgen: Prettify c-function argument lists
erl_docgen: Indent c-function line continuations
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The element type can not be extracted before the tuple type has
been updated.
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* maint:
Set early enough start time
inet_db: fix a bug when .hosts file is never reloaded
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* inet_db-startup-fix:
Set early enough start time
inet_db: fix a bug when .hosts file is never reloaded
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Adhering to the review in GitHub PR #2066:
The start time should be set so the resolver file can get
re-read as soon as possible to not get the whole timeout time
before detecting that the resolver file has been created.
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* rickard/deprecations-removals:
Fix bootstrap
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* maint:
stdlib: Optimize calendar:system_time_to_rfc3339()
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* hasse/stdlib/optimize_calendar_rfc3339/OTP-15630:
stdlib: Optimize calendar:system_time_to_rfc3339()
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* siri/logger/os-timestamp/OTP-15625:
Update preloaded
[logger] Change timestamp from erlang:system_time to os:system_time
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* maint:
fixup! ssl: Add support for {active,N}
ssl: Use common fonction to update {active,N}
ssl: Document {active,N}
ssl: Add support for {active,N}
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Rewords one sentence in common_test documentation
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* essen/ssl-active-n:
fixup! ssl: Add support for {active,N}
ssl: Use common fonction to update {active,N}
ssl: Document {active,N}
ssl: Add support for {active,N}
Conflicts:
lib/ssl/src/ssl.erl
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Add application:set_env/1 and application:set_env/2
OTP-15642
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