ruby.git/siphash.c, branch v4.0.3

Suppress gcc 15 unterminated-string-initialization warnings

2025-04-30T11:04:10+00:00

Fix and improve coroutines for Darwin (macOS) ppc/ppc64. (#5975)

2022-10-19T10:49:45+00:00

Expand tabs [ci skip]

2022-07-21T16:42:04+00:00

[Misc #18891]

Fix compilation error in mingw

2021-05-05T00:38:03+00:00

__LITTLE_ENDIAN is not defined.

Fix -Wundef warnings for patterns `#if HAVE`

2021-05-04T12:56:55+00:00

* See [Feature #17752]
* Using this to detect them:
  git grep -P 'if\s+HAVE' | grep -Pv 'HAVE_LONG_LONG|/ChangeLog|HAVE_TYPEOF'

Enable arm64 optimizations that exist for power/x86 (#3393)

2020-08-13T17:15:54+00:00

* Enable unaligned accesses on arm64

64-bit Arm platforms support unaligned accesses.

Running the string benchmarks this change improves performance
by an average of 1.04x, min .96x, max 1.21x, median 1.01x

* arm64 enable gc optimizations

Similar to x86 and powerpc optimizations.

|       |compare-ruby|built-ruby|
|:------|-----------:|---------:|
|hash1  |       0.225|     0.237|
|       |           -|     1.05x|
|hash2  |       0.110|     0.110|
|       |       1.00x|         -|

* vm_exec.c: improve performance for arm64

|                               |compare-ruby|built-ruby|
|:------------------------------|-----------:|---------:|
|vm_array                       |     26.501M|   27.959M|
|                               |           -|     1.06x|
|vm_attr_ivar                   |     21.606M|   31.429M|
|                               |           -|     1.45x|
|vm_attr_ivar_set               |     21.178M|   26.113M|
|                               |           -|     1.23x|
|vm_backtrace                   |       6.621|     6.668|
|                               |           -|     1.01x|
|vm_bigarray                    |     26.205M|   29.958M|
|                               |           -|     1.14x|
|vm_bighash                     |    504.155k|  479.306k|
|                               |       1.05x|         -|
|vm_block                       |     16.692M|   21.315M|
|                               |           -|     1.28x|
|block_handler_type_iseq        |       5.083|     7.004|
|                               |           -|     1.38x|

switch SipHash from SipHash24 to SipHash13 variant

2017-01-20T06:01:23+00:00

SipHash13 is secure enough to be used in hash-tables,
and SipHash's author confirms that.
Rust already considered switch to SipHash13:
  https://github.com/rust-lang/rust/issues/29754#issue-116174313
Jean-Philippe Aumasson confirmation:
  https://github.com/rust-lang/rust/issues/29754#issuecomment-156073946
Merged pull request:
  https://github.com/rust-lang/rust/pull/33940

From: Sokolov Yura aka funny_falcon 
Date: Thu, 8 Dec 2016 20:31:29 +0300
Signed-off-by: Urabe, Shyouhei 
Fixes: [Feature #13017]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57382 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

UNALIGNED_WORD_ACCESS on ppc64

2014-07-23T14:50:12+00:00

* include/ruby/defines.h, siphash.c, st.c (UNALIGNED_WORD_ACCESS):
  add PowerPC64 too, which is capable to access unaligned words.
  patched by Gustavo Frederico Temple Pedrosa in [ruby-core:63937].
  [Feature #10081]
* regint.h (PLATFORM_UNALIGNED_WORD_ACCESS): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46915 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

siphash.c: fix missing condition

2013-11-30T04:28:15+00:00

* siphash.c (sip_hash24): fix for aligned word access little endian
  platforms.  [ruby-core:58658] [Bug #9172]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43928 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* regint.h: fix typo: _M_AMD86 -> _M_AMD64.

2013-04-10T21:16:44+00:00

* siphash.c: ditto.

* st.c: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40220 b2dd03c8-39d4-4d8f-98ff-823fe69b080e