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14,223 Commits 26 Branches 139 Tags
a783e5d85a56def872ca0e9b37d4b0a1401bce0a
Commit Graph

67 Commits

Author SHA1 Message Date
Kovid Goyal
eb07307370 Ignore pedantic warnings from simde headers 2024-04-30 09:54:14 +05:30
Kovid Goyal
393169f79d Fix #7225 2024-03-14 20:55:05 +05:30
Kovid Goyal
daeaf65d7e fix compiler warning 2024-02-25 11:17:26 +05:30
Kovid Goyal
f4f06222d4 ... 2024-02-25 09:57:44 +05:30
Kovid Goyal
ad3ab877f8 Use a fast SIMD implementation to XOR data going into the disk cache 2024-02-25 09:57:43 +05:30
Kovid Goyal
1db7ac5f6b Use our new shift by n functions to improve function to zero last N bytes 
Benchmark neutral but cleaner code using one less vector register and equal
number of operations.
 2024-02-25 09:57:43 +05:30
Kovid Goyal
e77a970ca1 Also implement arbitrary byte shift for 128 bit registers 2024-02-25 09:57:43 +05:30
Kovid Goyal
a7c06b38e6 We dont actually need vzeroupper at start of function 
GCC emits vzeroupper automatically when compiling with native
optimizations but we still need it otherwise
 2024-02-25 09:57:43 +05:30
Kovid Goyal
0a1eb038a5 Implement functions for arbitrary byte shifts in vector registers 2024-02-25 09:57:42 +05:30
Kovid Goyal
eb1e3b33b4 Fix test failure on some systems 
Broken ass compilers strike again
 2024-02-25 09:57:42 +05:30
Kovid Goyal
b021e9b648 Do the default func test last so we can see what the failure is on more explicitly 2024-02-25 09:57:42 +05:30
Kovid Goyal
1acd223f45 ... 2024-02-25 09:57:42 +05:30
Kovid Goyal
f48e4ffd5e Port aligned load based find algorithm to C 2024-02-25 09:57:42 +05:30
Kovid Goyal
36773c09d3 Functions to get bytes to first match ignoring leading bytes 2024-02-25 09:57:42 +05:30
Kovid Goyal
687340003d ... 2024-02-25 09:57:42 +05:30
Kovid Goyal
493fc900e9 Fix build on ARM 2024-02-25 09:57:41 +05:30
Kovid Goyal
f1fe0bf40a Code to easily compare SIMD and scalar decode in a live instance 
Also remove -mtune=intel as it fails with clang
 2024-02-25 09:57:41 +05:30
Kovid Goyal
d5f34c401d Better vector registers to pre-calculate before the loop 2024-02-25 09:57:41 +05:30
Kovid Goyal
920b8a2496 Use VZEROUPPER in avx functions 
See https://www.intel.com/content/dam/develop/external/us/en/documents/11mc12-avoiding-2bavx-sse-2btransition-2bpenalties-2brh-2bfinal-809104.pdf
 2024-02-25 09:57:40 +05:30
Kovid Goyal
d4c4805f96 const away to glory 2024-02-25 09:57:40 +05:30
Kovid Goyal
6cdc7ac91d A further 5% speedup for UTF-8 decoding 
Achieved by decoding in larger chunks thereby amortizing the cost
of creating various constant vectors over larger chunks.
 2024-02-25 09:57:40 +05:30
Kovid Goyal
0bccada9d1 No longer need to abort after dealing with trailing bytes 2024-02-25 09:57:40 +05:30
Kovid Goyal
9cb9373274 Allow unbounded output in UTF8Decoder 
This will allow us to eventually decode more than a single
vector's worth in a fast inner loop
 2024-02-25 09:57:39 +05:30
Kovid Goyal
d987ffe49a Use unaligned stores 
Makes no measurable difference in the benchmark. And will eventually
allow us to process larger chunks of data without need to reset a bunch
of vector registers to constant values each time.
 2024-02-25 09:57:39 +05:30
Kovid Goyal
131716da00 Ignore another warning on some compiler versions in simde 2024-02-25 09:57:39 +05:30
Kovid Goyal
4d35fc2928 Use a custom movmask for ARM rather than the one from simde 
Supposedly faster, not that I can measure it, but...
Also gives neater code, so keep it.
 2024-02-25 09:57:39 +05:30
Kovid Goyal
9bca415af2 Use aligned loads when finding either of two bytes 
No measurable performance improvement, but neater algorithm anyway.
 2024-02-25 09:57:39 +05:30
Kovid Goyal
60bc8e6c25 ... 2024-02-25 09:57:39 +05:30
Kovid Goyal
8aa1b112b8 Turns out the simde implementation of movemask is not slow enough to compensate for the speed bump from 256 bit 2024-02-25 09:57:39 +05:30
Kovid Goyal
0bd47d8457 Cleanup KITTY_NO_SIMD compilation 2024-02-25 09:57:39 +05:30
Kovid Goyal
fcbda63023 Move finding byte code into separate functions 
movemask() is inefficient on ARM64 this will allow us to use a dedicated
implementation for finding bytes on that platform
 2024-02-25 09:57:38 +05:30
Kovid Goyal
73342411bc Dont build any SIMD code when the target is neither ARM64 nor x86/amd64 2024-02-25 09:57:38 +05:30
Kovid Goyal
8dd6f9b07c Get universal builds working again 
Now we use lipo and build individually so we can pass the correct
compiler flags per arch
 2024-02-25 09:57:38 +05:30
Kovid Goyal
7e77a196e6 Build only the SIMD code with SIMD compiler flags 2024-02-25 09:57:38 +05:30
Kovid Goyal
0e4c49a0d6 Fix building on macOS ARM 2024-02-25 09:57:35 +05:30
Kovid Goyal
e783eccc97 fix handling of bits from high byte of 4 byte sequences 2024-02-25 09:57:35 +05:30
Kovid Goyal
7e6459a5e4 DRYer 2024-02-25 09:57:35 +05:30
Kovid Goyal
67d22b0ec6 Avoid multiple branches for checking for trailing sequence 2024-02-25 09:57:34 +05:30
Kovid Goyal
79f99bb3ad Make print_register useable without full debug 2024-02-25 09:57:34 +05:30
Kovid Goyal
fa3579656b More invalid utf-8 tests 2024-02-25 09:57:34 +05:30
Kovid Goyal
8a10fcaf5a More tests 2024-02-25 09:57:34 +05:30
Kovid Goyal
4c8b8caead Handle trailing incomplete sequences 2024-02-25 09:57:34 +05:30
Kovid Goyal
4238fedee7 More tests 2024-02-25 09:57:34 +05:30
Kovid Goyal
b0dcdf74bd More tests and micro-optimize switch to ASCII fast path 2024-02-25 09:57:34 +05:30
Kovid Goyal
a63d62fb4e ... 2024-02-25 09:57:34 +05:30
Kovid Goyal
8dbb0cff6f Dont call __builtin_ctz with zero 2024-02-25 09:57:34 +05:30
Kovid Goyal
07bba337f5 fix various bugs in AVX2 utility functions 2024-02-25 09:57:34 +05:30
Kovid Goyal
b28fbf6817 fix zero-ing of last n bytes 2024-02-25 09:57:34 +05:30
Kovid Goyal
daa169b8ed More work on utf8 SIMD decode 2024-02-25 09:57:34 +05:30
Kovid Goyal
a5251bedc9 More work on SIMD utf8 decode 2024-02-25 09:57:34 +05:30