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The types array(), dict(), digraph(), gb_set(), gb_tree(), queue(),
set(), and tid() have been deprecated. They will be removed in OTP 18.0.
Instead the types array:array(), dict:dict(), digraph:graph(),
gb_set:set(), gb_tree:tree(), queue:queue(), sets:set(), and ets:tid()
can be used. (Note: it has always been necessary to use ets:tid().)
It is allowed in OTP 17.0 to locally re-define the types array(), dict(),
and so on.
New types array:array/1, dict:dict/2, gb_sets:set/1, gb_trees:tree/2,
queue:queue/1, and sets:set/1 have been added.
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To reproduce the error:
$ echo '-module(hello).' > hello.erl
$ erl
1> c(hello, [native,{hipe,[no_remove_comments]}]).
[...]
<HiPE (v 3.10.2.1)> Error: [hipe:834]: ERROR: {{case_clause,
{icode_comment,call_ext_only}},
[{hipe_icode,successors,1,
[{file,"hipe_icode.erl"},
{line,1444}]},
[...]
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* ks/hipe-cleanup-escaping/OTP-11031:
Loosen the assumptions of code that handles escaping functions
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The HiPE compiler implicitly relied on the assumption that a function
will never appear as both exported and also used as function closure.
This was true because the BEAM compiler prior to R16B created module
local anonymous functions for each closure. A proposed change to the
BEAM compiler invalidates this invariant, so in order to accommodate
for this change there needs to be a change of how the set of possibly
escaping functions is computed.
While doing this, the code was simplified by taking out a boolean()
tag that indicated whether a function is a closure or exported and
also slightly cleaned up the affected modules.
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The following module produced erroneous results when compiled with HiPE:
-module(a).
-export([foo/1]).
foo(X) when is_number(X) ->
is_integer(X).
Running:
1> c(a).
2> a:foo(0).
true
3> hipe:c(a).
4> a:foo(0).
false % *** WRONG ***
The problem was that the 'number' case for the `hipe_icode:type_test/1`
was going to the default case where the argument was determined as being
something other than an integer. Thanks to Sebastian Egner and Johannes
Weißl for bringing the bug into attention. Fixed on the day it was reported.
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Conflicts:
lib/diameter/autoconf/vxworks/sed.general
xcomp/README.md
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* maint:
Update to work with space in include path
Update to work with whitespace in exec path
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OTP-10106
OTP-10107
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Compiling single functions (as opposed to whole modules) to native
code complicates code management in HiPE. It would also vastly
complicate whole-module optimizations, such as returning multiple
return values instead of tuples within a module.
As a first step, remove the external interface for the single
compilation feature. In the future, there are many things that
could be restructured and simplified.
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Conflicts:
erts/aclocal.m4
erts/include/internal/ethread_header_config.h.in
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Pattern matching of floats with variable size (<<F:S/float>>) did
always fail. Judging from similar code for ints, this bug is simply
a typo.
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Introduce the line/1 instruction in the compiler and the BEAM
virtual machine. It will not yet be generated by the compiler and
will not actually carry any information.
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* ks/hipe-icode-range-fix:
Cleanup specs
Fix bug in the simplification of inexact comparisons
Various cleanups and cosmetic changes
OTP-9101
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On 31/1/2011 Paul Guyot reported a bug in the native code compilation
of inexact equality/inequality tests between floats and integers. The
relevant test was:
f(X) ->
Y = X / 2,
Y == 0.
and hipe erroneously evaluated the calls f(0) and f(0.0) to 'false'.
The culprit was in the simplification code of the Icode range analysis
which used an erroneous test (lists:any/1 instead of lists:all/1).
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