diff options
Diffstat (limited to 'lib/hipe/doc/src/notes.xml')
| -rw-r--r-- | lib/hipe/doc/src/notes.xml | 651 |
1 files changed, 621 insertions, 30 deletions
diff --git a/lib/hipe/doc/src/notes.xml b/lib/hipe/doc/src/notes.xml index c7faf733c7..eadaee50e2 100644 --- a/lib/hipe/doc/src/notes.xml +++ b/lib/hipe/doc/src/notes.xml @@ -4,20 +4,21 @@ <chapter> <header> <copyright> - <year>2006</year><year>2013</year> + <year>2006</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> - The contents of this file are subject to the Erlang Public License, - Version 1.1, (the "License"); you may not use this file except in - compliance with the License. You should have received a copy of the - Erlang Public License along with this software. If not, it can be - retrieved online at http://www.erlang.org/. - - Software distributed under the License is distributed on an "AS IS" - basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - the License for the specific language governing rights and limitations - under the License. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. </legalnotice> @@ -30,6 +31,592 @@ </header> <p>This document describes the changes made to HiPE.</p> +<section><title>Hipe 3.16.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> Fix a bug regarding map types that caused Dialyzer to + go into an infinite loop. A consequence of the fix is + that compound map keys such as maps and tuples sometimes + are handled with less precision than before. </p> + <p> + Own Id: OTP-14572 Aux Id: seq13319 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + General Unicode improvements.</p> + <p> + Own Id: OTP-14462</p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.16</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix hipe compiler flags <c>o0</c> and <c>o1</c> that have + previously been ignored by mistake.</p> + <p> + Own Id: OTP-13862 Aux Id: PR-1154 </p> + </item> + <item> + <p> + Fix LLVM backend to not convert all remote calls to own + module, like <c>?MODULE:foo()</c>, into local calls.</p> + <p> + Own Id: OTP-13983</p> + </item> + <item> + <p> + Hipe optional LLVM backend does require LLVM version 3.9 + or later as older versions forced strong dependencies on + erts internals structures.</p> + <p> + Own Id: OTP-14238</p> + </item> + <item> + <p> + Fix a bug that has been seen causing failed loading of + hipe compiled modules on NetBSD due to unaligned data + pointers.</p> + <p> + Own Id: OTP-14302 Aux Id: ERL-376, PR-1386 </p> + </item> + <item> + <p> + Fix miscompilation bug in hipe that could cause wrong + function clause to be called from non-tail calls, where + the return value is unused, if the right function clause + is only reachable from those non-tail calls.</p> + <p> + Own Id: OTP-14306 Aux Id: ERL-278, PR-1392 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Improve hipe compilation time for large functions.</p> + <p> + Own Id: OTP-13810 Aux Id: PR-1124 </p> + </item> + <item> + <p>Replaced usage of deprecated symbolic <seealso + marker="erts:erlang#type-time_unit"><c>time + unit</c></seealso> representations.</p> + <p> + Own Id: OTP-13831 Aux Id: OTP-13735 </p> + </item> + <item> + <p> + Speed up hipe compile time register allocation for larger + function.</p> + <p> + Own Id: OTP-13879</p> + </item> + <item> + <p> + Various code generation improvements.</p> + <p> + Own Id: OTP-14261 Aux Id: PR-1360 </p> + </item> + <item> + <p> + Improve hipe compiler to generate code with better CPU + register utilization at runtime by the use of 'Live Range + Splitting' techniques.</p> + <p> + Own Id: OTP-14293 Aux Id: PR-1380 </p> + </item> + <item> + <p> + Allow HiPE to run on VM built with + <c>--enable-m32-build</c>.</p> + <p> + Own Id: OTP-14330 Aux Id: PR-1397 </p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.15.4</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> Fix a bug concerning parameterized opaque types. </p> + <p> + Own Id: OTP-14130</p> + </item> + <item> + <p> + Fixed xml issues in old release notes</p> + <p> + Own Id: OTP-14269</p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.15.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix flow control bug in hipe compiler that may cause + compile time crash.</p> + <p> + Own Id: OTP-13965 Aux Id: PR-1253 </p> + </item> + <item> + <p> + Fix bug in native compilation of bitstring pattern + matching causing erroneous runtime matching result. The + bug only affects code containing constant-valued segments + whose size is expressed in bits; it is triggered when the + pattern matching against these segments fails (i.e., when + the next clause needs to be tried).</p> + <p> + Own Id: OTP-14005</p> + </item> + <item> + <p> + Workaround in HiPE LLVM backend for a bug in LLVM 3.9. + The bug could cause LLVM-compiled modules to be rejected + during loading with a badarg exception in + hipe_bifs:enter_sdecs/1, but also cause corruption or + segmentation faults i runtime.</p> + <p> + Own Id: OTP-14027 Aux Id: ERL-292, PR-1237 </p> + </item> + <item> + <p> + Fix a bug in HiPE LLVM backend involving incorrect type + tests of atoms sometimes causing incorrect behaviour or + even segfaults.</p> + <p> + Own Id: OTP-14028 Aux Id: PR-1237 </p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.15.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed various hipe compiler backend bugs affecting mostly + ARM and SPARC.</p> + <p> + Own Id: OTP-13846 Aux Id: PR-1146 </p> + </item> + <item> + <p> + Fixed some Dialyzer warnings and code cleanup for the + Sparc compiler backend.</p> + <p> + Own Id: OTP-13861 Aux Id: PR-1148 </p> + </item> + <item> + <p> Fix erl_bif_types opaque bug. </p> + <p> + Own Id: OTP-13878 Aux Id: PR-1161, ERL-249 </p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Fix erl_types opaque match order</p> + <p> + Own Id: OTP-13876</p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.15.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + HiPE compiler crashed, during compilation, in some cases + that involved inlining of float operations on complicated + control flow graphs.</p> + <p> + Own Id: OTP-13407 Aux Id: PR-984 </p> + </item> + <item> + <p> + Various fixes and improvements to the HiPE LLVM backend.</p> + <list> <item>Add support for LLVM 3.7 and 3.8 in the + HiPE/LLVM x86_64 backend</item> <item>Reinstate support + for the LLVM backend on x86 (works OK for LLVM 3.5 to 3.7 + -- LLVM 3.8 has a bug that prevents it from generating + correct native code on x86)</item> </list> + <p> + Own Id: OTP-13626</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Elimination of <c>maps:is_key/2</c> calls to HiPE</p> + <p> + Own Id: OTP-13625 Aux Id: PR-1069 </p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.15</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix pretty printing of Core Maps</p> + <p> + Literal maps could cause Dialyzer to crash when pretty + printing the results.</p> + <p> + Own Id: OTP-13238</p> + </item> + <item> + <p> + Dialyzer warnings removed.</p> + <p> + Own Id: OTP-13379</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Fix HiPE ErLLVM code generation for pattern matching with + UTF binaries.</p> + <p> + Own Id: OTP-13269</p> + </item> + <item> + <p> + Fix various binary construction inconsistencies for hipe + compiled code.</p> <list> <item>Passing bad field sizes to + binary constructions would throw <c>badarith</c> rather + than <c>badarg</c>. Worse, in guards, when the unit size + of the field was 1, the exception would leak rather than + failing the function clause match.</item> <item>Passing + bignums as field sizes to binary constructions would + always fail (and always with <c>badarg</c>).</item> + <item>A bug in bs_init_bits that cased binary + constructions to fail with system_limit if they were at + least 1/8th of the actual limit.</item> <item>Compiler + crashes when matches against an integer literal whose + size fits an unsigned word, but not a signed word or + matches against an integer literal that whose size is + larger than the largest allowed bignum.</item> <item>Very + large binary constructions that should fail with + system_limit could instead fail with <c>badarg</c> or + even succeed with a faulty result.</item> <item>Add + missing check for unit size match when inserting a + binary. For example, a faulty expression like + <c><<<<1:7>>/binary>></c> would + succeed.</item> </list> + <p> + Own Id: OTP-13272</p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.14</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix hipe bug causing segfaults when native code + constructs binaries starting with a zero-length integer + field.</p> + <p> + Own Id: OTP-13048</p> + </item> + <item> + <p> + Reintroduce the <c>erlang:make_fun/3</c> BIF in + erl_bif_types.</p> + <p> + Own Id: OTP-13068</p> + </item> + <item> + <p> + In certain cases of matching with very big binaries, the + HiPE compiler generated code that would fail the match, + even in cases that the matching was successful. The + problem was more quite noticeable on 32-bit platforms.</p> + <p> + Own Id: OTP-13092</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + mikpe/hipe_x86_signal-musl-support</p> + <p> + Own Id: OTP-13159</p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.13</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> Fix bugs concerning <c>erlang:abs/1</c>. </p> + <p> + Own Id: OTP-12948</p> + </item> + <item> + <p> Fix a bug concerning <c>lists:keydelete/3</c> with + union and opaque types. </p> + <p> + Own Id: OTP-12949</p> + </item> + <item> + <p> + A beam file compiled by hipe for an incompatible runtime + system was sometimes not rejected by the loader, which + could lead to vm crash. This fix will also allow the same + hipe compiler to be used by both normal and debug-built + vm.</p> + <p> + Own Id: OTP-12962</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + New function <c>hipe:erts_checksum/0</c> which returns a + value identifying the target runtime system for the + compiler. Used by dialyzer for its beam cache directory.</p> + <p> + Own Id: OTP-12963 Aux Id: OTP-12962, OTP-12964 </p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.12</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> Fix a minor bug in the handling of opaque types. </p> + <p> + Own Id: OTP-12666</p> + </item> + <item> + <p> + Fix hipe bug when matching a "writable" binary. The bug + has been seen to sometimes cause a failed binary matching + of a correct utf8 character, but other symptoms are also + possible.</p> + <p> + Own Id: OTP-12667</p> + </item> + <item> + <p> + Optimizations and code cleanup in hipe code loader.</p> + <p> + Own Id: OTP-12816</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Improved error handling when memory allocation for HiPE + code fails.</p> + <p> + Own Id: OTP-12448</p> + </item> + <item> + <p> + Allow use of complete interface of cerl_pmatch module</p> + <p> + Own Id: OTP-12794</p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.11.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix HiPE for ARM when Erlang VM is compiled for Thumb + execution mode. This was a problem on e.g. Ubuntu which + configures its system GCC to generate Thumb by default.</p> + <p> + Own Id: OTP-12405</p> + </item> + <item> + <p> + Reduced lock contention of dynamic function lookups (like + apply) from hipe compiled code.</p> + <p> + Own Id: OTP-12557</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Fix two bugs in HiPE compiler regarding floating-points, + both leading to crash during compilation. The + target-specific code generators failed to handle integer + to floating-point conversion instructions with constant + operands. The middle-end could use an incorrect + representation for copies between floating-point + registers.</p> + <p> + Own Id: OTP-12413</p> + </item> + <item> + <p> + Improved error handling when memory allocation for HiPE + code fails.</p> + <p> + Own Id: OTP-12448</p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.11.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed internal elf_format hrl file to contain valid + erlang</p> + <p> + Own Id: OTP-12322</p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.11.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> The pretty-printing of bitstrings has been corrected. + </p> + <p> + Own Id: OTP-12015</p> + </item> + <item> + <p> A bug concerning <c>is_record/2,3</c> has been fixed, + as well as some cases where Dialyzer could crash due to + reaching system limits. </p> + <p> + Own Id: OTP-12018</p> + </item> + </list> + </section> + +</section> + +<section><title>Hipe 3.11</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + A Dialyzer crash involving analysis of Map types has now + been fixed.</p> + <p> + Own Id: OTP-11947</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + Handle Maps instructions get_map_elements, put_map_assoc, + put_map_exact in HiPE compiler.</p> + <p> + Own Id: OTP-11900</p> + </item> + </list> + </section> + +</section> + <section><title>Hipe 3.10.3</title> <section><title>Fixed Bugs and Malfunctions</title> @@ -110,22 +697,28 @@ <p> EEP43: New data type - Maps</p> <p> - With Maps you may for instance: <taglist> <item><c>M0 = - #{ a => 1, b => 2}, % create - associations</c></item> <item><c>M1 = M0#{ a := 10 }, % - update values</c></item> <item><c>M2 = M1#{ "hi" => - "hello"}, % add new associations</c></item> <item><c>#{ - "hi" := V1, a := V2, b := V3} = M2. % match keys with - values</c></item> </taglist></p> - <p> - For information on how to use Maps please see the - <seealso marker="doc/reference_manual:maps">Reference - Manual</seealso>.</p> + With Maps you may for instance:</p> + <taglist> + <tag/> <item><c>M0 = #{ a => 1, b => 2}, % create + associations</c></item> + <tag/><item><c>M1 = M0#{ a := 10 }, % update values</c></item> + <tag/><item><c>M2 = M1#{ "hi" => + "hello"}, % add new associations</c></item> + <tag/><item><c>#{ "hi" := V1, a := V2, b := V3} = M2. + % match keys with values</c></item> + </taglist> + <p> + For information on how to use Maps please see Map Expressions in the + <seealso marker="doc/reference_manual:expressions#map_expressions"> + Reference Manual</seealso>.</p> <p> The current implementation is without the following - features: <taglist> <item>No variable keys</item> - <item>No single value access</item> <item>No map - comprehensions</item> </taglist></p> + features:</p> + <taglist> + <tag/><item>No variable keys</item> + <tag/><item>No single value access</item> + <tag/><item>No map comprehensions</item> + </taglist> <p> Note that Maps is <em>experimental</em> during OTP 17.0.</p> <p> @@ -393,19 +986,17 @@ <section><title>Fixed Bugs and Malfunctions</title> <list> <item> - <p> <list> <item><p>No warnings for underspecs with remote types</p></item> <item><p> Fix crash in Typer</p></item> <item><p>Fix Dialyzer's warning for its own code</p></item> <item><p>Fix Dialyzer's warnings in HiPE</p></item> <item><p>Add file/line info in a particular Dialyzer crash</p></item> <item><p>Update - inets test results</p></item> </list></p> + inets test results</p></item> </list> <p> Own Id: OTP-9758</p> </item> <item> - <p> <list> <item><p>Correct callback spec in application module</p></item> <item><p>Refine warning about callback specs with extra ranges</p></item> <item><p>Cleanup @@ -416,7 +1007,7 @@ analysis</p></item> <item><p>Fix crash in Dialyzer</p></item> <item><p>Variable substitution was not generalizing any unknown variables.</p></item> - </list></p> + </list> <p> Own Id: OTP-9776</p> </item> @@ -850,7 +1441,7 @@ <list> <item> <p> - Miscellanous updates.</p> + Miscellaneous updates.</p> <p> Own Id: OTP-8038</p> </item> |