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xxhash: Add XXH3_128 + test vectors.

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Jeroen van Rijn
2021-09-11 15:28:49 +02:00
parent 1f1d8ef884
commit eaefbc43cb
5 changed files with 2568 additions and 13 deletions
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core/hash/xxhash/common.odin
+21 -3
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@@ -11,7 +11,9 @@ package xxhash
import "core:intrinsics"
import "core:runtime"
mem_copy :: runtime.mem_copy
import "core:sys/llvm"
mem_copy :: runtime.mem_copy
byte_swap :: intrinsics.byte_swap
/*
Version definition
@@ -43,6 +45,22 @@ Error :: enum {
Error,
}
XXH_DISABLE_PREFETCH :: #config(XXH_DISABLE_PREFETCH, false)
when !XXH_DISABLE_PREFETCH {
prefetch_address :: #force_inline proc(address: rawptr) {
llvm.prefetch(address, .Read, .High, .Data)
}
prefetch_offset :: #force_inline proc(address: rawptr, auto_cast offset: uintptr) {
ptr := rawptr(uintptr(address) + offset)
prefetch_address(ptr)
}
} else {
prefetch_address :: #force_inline proc(address: rawptr) {}
prefetch_offset :: #force_inline proc(address: rawptr, auto_cast offset: uintptr) {}
}
prefetch :: proc { prefetch_address, prefetch_offset, }
@(optimization_mode="speed")
XXH_rotl32 :: #force_inline proc(x, r: u32) -> (res: u32) {
return ((x << r) | (x >> (32 - r)))
@@ -54,7 +72,7 @@ XXH_rotl64 :: #force_inline proc(x, r: u64) -> (res: u64) {
}
@(optimization_mode="speed")
XXH32_read32 :: #force_inline proc(buf: []u8, alignment: Alignment) -> (res: u32) {
XXH32_read32 :: #force_inline proc(buf: []u8, alignment := Alignment.Unaligned) -> (res: u32) {
if XXH_FORCE_MEMORY_ACCESS == 2 || alignment == .Aligned {
#no_bounds_check b := (^u32le)(&buf[0])^
return u32(b)
@@ -66,7 +84,7 @@ XXH32_read32 :: #force_inline proc(buf: []u8, alignment: Alignment) -> (res: u32
}
@(optimization_mode="speed")
XXH64_read64 :: #force_inline proc(buf: []u8, alignment: Alignment) -> (res: u64) {
XXH64_read64 :: #force_inline proc(buf: []u8, alignment := Alignment.Unaligned) -> (res: u64) {
if XXH_FORCE_MEMORY_ACCESS == 2 || alignment == .Aligned {
#no_bounds_check b := (^u64le)(&buf[0])^
return u64(b)