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18 Commits

Author SHA1 Message Date
Javier Blazquez 0816badf3a fix Windows ARM64 build and detect ARM64EC as ARM64 2024-04-07 11:48:02 -04:00
Havard Eidnes 8bfe93fbf9 c/blake3_impl.h: don't try to do NEON on big-endian aarch64. 
...because this would otherwise hit
  #error "This implementation only supports little-endian ARM."
in c/blake3_neon.c.
 2023-09-19 16:57:11 -07:00
Alberto González Palomo 606a5825d9 Make sign conversion explicit. Fix #287. 
Implicit sign conversions cause warnings when using -Wsign-conversion
but that is easy to avoid by making the conversions explicit.
 2023-01-19 13:13:32 -08:00
wargio cf5d59cd43 Support portable build without intrinsics 2022-10-03 11:24:18 +02:00
Jack O'Connor 4056af6d7f silence a couple more warnings on 32-bit Windows 
https://github.com/BLAKE3-team/BLAKE3/issues/218#issuecomment-1009510462
 2022-01-10 21:02:37 -05:00
rsdy 2aa7c963be Use BLAKE3_USE_NEON=0 instead of BLAKE3_NO_NEON def 2021-10-12 23:23:25 +01:00
rsdy ed09e45e7a Include MSVC naming of aarch64 arch 2021-10-12 16:23:28 +01:00
rsdy c5941a2731 Make the C implementation default to using NEON on aarch64 2021-10-08 12:45:04 +01:00
Jack O'Connor 0b13637ae3 fix a couple of big-endianness mistakes in blake3.c 
Kudos to @pascal-cuoq and @jakub-zwolakowski from TrustInSoft for
catching these bugs.

Original report: https://github.com/BLAKE3-team/BLAKE3/pull/118
 2020-09-29 16:09:28 -04:00
Matthew Krupcale d91f20dd29 Start SSE2 implementation based on SSE4.1 version 
Wire up basic functions and features for SSE2 support using the SSE4.1 version
as a basis without implementing the SSE2 instructions yet.

 * Cargo.toml: add no_sse2 feature
 * benches/bench.rs: wire SSE2 benchmarks
 * build.rs: add SSE2 rust intrinsics and assembly builds
 * c/Makefile.testing: add SSE2 C and assembly targets
 * c/README.md: add SSE2 to C build instructions
 * c/blake3_c_rust_bindings/build.rs: add SSE2 C rust binding builds
 * c/blake3_c_rust_bindings/src/lib.rs: add SSE2 C rust bindings
 * c/blake3_dispatch.c: add SSE2 C dispatch
 * c/blake3_impl.h: add SSE2 C function prototypes
 * c/blake3_sse2.c: add SSE2 C intrinsic file starting with SSE4.1 version
 * c/blake3_sse2_x86-64_{unix.S,windows_gnu.S,windows_msvc.asm}: add SSE2
   assembly files starting with SSE4.1 version
 * src/ffi_sse2.rs: add rust implementation using SSE2 C rust bindings
 * src/lib.rs: add SSE2 rust intrinsics and SSE2 C rust binding rust SSE2 module
   configurations
 * src/platform.rs: add SSE2 rust platform detection and dispatch
 * src/rust_sse2.rs: add SSE2 rust intrinsic file starting with SSE4.1 version
 * tools/instruction_set_support/src/main.rs: add SSE2 feature detection
 2020-08-24 00:54:46 -04:00
Samuel Neves eec458d03e move prototypes to shared header file, and make all local functions static. 2020-03-31 21:21:08 +01:00
Jack O'Connor 37e153cc60 add NEON support to blake3_dispatch.c 
Currently this requires setting the BLAKE3_USE_NEON preprocessor flag.
In the future we may enable this automatically on AArch32/64 or include
some kind of dynamic feature detection. (Though ARM makes this harder
than x86.)

As part of this, get rid of the IS_ARM flag. It wasn't being set
properly when I tried it on a Raspberry Pi.

Closes #30.
 2020-01-28 15:59:16 -05:00
Samuel Neves de1458c565 name collision 2020-01-23 11:51:46 +00:00
Samuel Neves 37ea737c16 more robust bit-trickery functions 2020-01-23 10:58:45 +00:00
Jack O'Connor 163f52245d port compress_subtree_to_parent_node from Rust to C 
This recursive function performs parallel parent node hashing, which is
an important optimization.
 2020-01-22 21:32:39 -05:00
Jack O'Connor de1cf0038e add the round_down_to_power_of_2 algoirthm 
This could probably be sped up by detecting LZCNT support, but it's
unlikely to be a bottleneck.
 2020-01-22 21:32:39 -05:00
Jack O'Connor d0c8fc16b3 use a better popcnt fallback algorithm 
This one loops once for every set bit, rather than once for each bit
position to the right of the highest set bit.

https://en.wikipedia.org/wiki/Hamming_weight#Efficient_implementation
 2020-01-21 10:47:00 -05:00
Jack O'Connor a7579d30ad merge BLAKE3-c into this repo 
This is commit 4476d9da0e370993823e7ad17592b84e905afd76 of
https://github.com/veorq/BLAKE3-c.
 2020-01-09 09:48:52 -05:00