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Make hash procedures contextless where possible

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This commit is contained in:
gingerBill
2024-03-27 12:54:37 +00:00
parent 3bc7c51325
commit 6422c090f2
4 changed files with 22 additions and 22 deletions
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8
core/hash/crc.odin
View File

@@ -1,7 +1,7 @@
package hash
@(optimization_mode="speed")
crc64_ecma_182 :: proc(data: []byte, seed := u64(0)) -> (result: u64) #no_bounds_check {
crc64_ecma_182 :: proc "contextless" (data: []byte, seed := u64(0)) -> (result: u64) #no_bounds_check {
result = seed
#no_bounds_check for b in data {
result = result<<8 ~ _crc64_table_ecma_182[((result>>56) ~ u64(b)) & 0xff]
@@ -15,7 +15,7 @@ crc64_ecma_182 :: proc(data: []byte, seed := u64(0)) -> (result: u64) #no_bounds
Based on Mark Adler's v1.4 implementation in C under the ZLIB license.
*/
@(optimization_mode="speed")
crc64_xz :: proc(data: []byte, seed := u64(0)) -> u64 #no_bounds_check {
crc64_xz :: proc "contextless" (data: []byte, seed := u64(0)) -> u64 #no_bounds_check {
data := data
result := ~u64le(seed)
@@ -53,7 +53,7 @@ crc64_xz :: proc(data: []byte, seed := u64(0)) -> u64 #no_bounds_check {
Generator polynomial: x^64 + x^4 + x^3 + x + 1
*/
@(optimization_mode="speed")
crc64_iso_3306 :: proc(data: []byte, seed := u64(0)) -> u64 #no_bounds_check {
crc64_iso_3306 :: proc "contextless" (data: []byte, seed := u64(0)) -> u64 #no_bounds_check {
result := seed
@@ -70,7 +70,7 @@ crc64_iso_3306 :: proc(data: []byte, seed := u64(0)) -> u64 #no_bounds_check {
return result
}
crc64_iso_3306_inverse :: proc(data: []byte, seed := u64(0)) -> u64 {
crc64_iso_3306_inverse :: proc "contextless" (data: []byte, seed := u64(0)) -> u64 {
result := #force_inline crc64_iso_3306(data, ~seed)
return ~result
}

4
core/hash/crc32.odin
View File

@@ -3,7 +3,7 @@ package hash
import "base:intrinsics"
@(optimization_mode="speed")
crc32 :: proc(data: []byte, seed := u32(0)) -> u32 #no_bounds_check {
crc32 :: proc "contextless" (data: []byte, seed := u32(0)) -> u32 #no_bounds_check {
crc := ~seed
buffer := raw_data(data)
length := len(data)
@@ -323,7 +323,7 @@ crc32_table := [8][256]u32{
/*
@(optimization_mode="speed")
crc32 :: proc(data: []byte, seed := u32(0)) -> u32 {
crc32 :: proc "contextless" (data: []byte, seed := u32(0)) -> u32 {
result := ~u32(seed);
#no_bounds_check for b in data {
result = result>>8 ~ _crc32_table[(result ~ u32(b)) & 0xff];

24
core/hash/hash.odin
View File

@@ -4,7 +4,7 @@ import "core:mem"
import "base:intrinsics"
@(optimization_mode="speed")
adler32 :: proc(data: []byte, seed := u32(1)) -> u32 #no_bounds_check {
adler32 :: proc "contextless" (data: []byte, seed := u32(1)) -> u32 #no_bounds_check {
ADLER_CONST :: 65521
@@ -47,7 +47,7 @@ adler32 :: proc(data: []byte, seed := u32(1)) -> u32 #no_bounds_check {
}
@(optimization_mode="speed")
djb2 :: proc(data: []byte, seed := u32(5381)) -> u32 {
djb2 :: proc "contextless" (data: []byte, seed := u32(5381)) -> u32 {
hash: u32 = seed
for b in data {
hash = (hash << 5) + hash + u32(b) // hash * 33 + u32(b)
@@ -55,7 +55,7 @@ djb2 :: proc(data: []byte, seed := u32(5381)) -> u32 {
return hash
}
djbx33a :: proc(data: []byte, seed := u32(5381)) -> (result: [16]byte) #no_bounds_check {
djbx33a :: proc "contextless" (data: []byte, seed := u32(5381)) -> (result: [16]byte) #no_bounds_check {
state := [4]u32{seed, seed, seed, seed}
s: u32 = 0
@@ -74,7 +74,7 @@ djbx33a :: proc(data: []byte, seed := u32(5381)) -> (result: [16]byte) #no_bound
// If you have a choice, prefer fnv32a
@(optimization_mode="speed")
fnv32_no_a :: proc(data: []byte, seed := u32(0x811c9dc5)) -> u32 {
fnv32_no_a :: proc "contextless" (data: []byte, seed := u32(0x811c9dc5)) -> u32 {
h: u32 = seed
for b in data {
h = (h * 0x01000193) ~ u32(b)
@@ -87,7 +87,7 @@ fnv64 :: fnv64_no_a // NOTE(bill): Not a fan of these aliases but seems necessar
// If you have a choice, prefer fnv64a
@(optimization_mode="speed")
fnv64_no_a :: proc(data: []byte, seed := u64(0xcbf29ce484222325)) -> u64 {
fnv64_no_a :: proc "contextless" (data: []byte, seed := u64(0xcbf29ce484222325)) -> u64 {
h: u64 = seed
for b in data {
h = (h * 0x100000001b3) ~ u64(b)
@@ -95,7 +95,7 @@ fnv64_no_a :: proc(data: []byte, seed := u64(0xcbf29ce484222325)) -> u64 {
return h
}
@(optimization_mode="speed")
fnv32a :: proc(data: []byte, seed := u32(0x811c9dc5)) -> u32 {
fnv32a :: proc "contextless" (data: []byte, seed := u32(0x811c9dc5)) -> u32 {
h: u32 = seed
for b in data {
h = (h ~ u32(b)) * 0x01000193
@@ -104,7 +104,7 @@ fnv32a :: proc(data: []byte, seed := u32(0x811c9dc5)) -> u32 {
}
@(optimization_mode="speed")
fnv64a :: proc(data: []byte, seed := u64(0xcbf29ce484222325)) -> u64 {
fnv64a :: proc "contextless" (data: []byte, seed := u64(0xcbf29ce484222325)) -> u64 {
h: u64 = seed
for b in data {
h = (h ~ u64(b)) * 0x100000001b3
@@ -113,7 +113,7 @@ fnv64a :: proc(data: []byte, seed := u64(0xcbf29ce484222325)) -> u64 {
}
@(optimization_mode="speed")
jenkins :: proc(data: []byte, seed := u32(0)) -> u32 {
jenkins :: proc "contextless" (data: []byte, seed := u32(0)) -> u32 {
hash: u32 = seed
for b in data {
hash += u32(b)
@@ -127,7 +127,7 @@ jenkins :: proc(data: []byte, seed := u32(0)) -> u32 {
}
@(optimization_mode="speed")
murmur32 :: proc(data: []byte, seed := u32(0)) -> u32 {
murmur32 :: proc "contextless" (data: []byte, seed := u32(0)) -> u32 {
c1_32: u32 : 0xcc9e2d51
c2_32: u32 : 0x1b873593
@@ -178,7 +178,7 @@ murmur32 :: proc(data: []byte, seed := u32(0)) -> u32 {
// See https://github.com/aappleby/smhasher/blob/master/src/MurmurHash2.cpp#L96
@(optimization_mode="speed")
murmur64a :: proc(data: []byte, seed := u64(0x9747b28c)) -> u64 {
murmur64a :: proc "contextless" (data: []byte, seed := u64(0x9747b28c)) -> u64 {
m :: 0xc6a4a7935bd1e995
r :: 47
@@ -219,7 +219,7 @@ murmur64a :: proc(data: []byte, seed := u64(0x9747b28c)) -> u64 {
// See https://github.com/aappleby/smhasher/blob/master/src/MurmurHash2.cpp#L140
@(optimization_mode="speed")
murmur64b :: proc(data: []byte, seed := u64(0x9747b28c)) -> u64 {
murmur64b :: proc "contextless" (data: []byte, seed := u64(0x9747b28c)) -> u64 {
m :: 0x5bd1e995
r :: 24
@@ -287,7 +287,7 @@ murmur64b :: proc(data: []byte, seed := u64(0x9747b28c)) -> u64 {
}
@(optimization_mode="speed")
sdbm :: proc(data: []byte, seed := u32(0)) -> u32 {
sdbm :: proc "contextless" (data: []byte, seed := u32(0)) -> u32 {
hash: u32 = seed
for b in data {
hash = u32(b) + (hash<<6) + (hash<<16) - hash

8
core/hash/mini.odin
View File

@@ -1,6 +1,6 @@
package hash
ginger_hash8 :: proc(x: u8) -> u8 {
ginger_hash8 :: proc "contextless" (x: u8) -> u8 {
h := x * 251
h += ~(x << 3)
h ~= (x >> 1)
@@ -11,7 +11,7 @@ ginger_hash8 :: proc(x: u8) -> u8 {
}
ginger_hash16 :: proc(x: u16) -> u16 {
ginger_hash16 :: proc "contextless" (x: u16) -> u16 {
z := (x << 8) | (x >> 8)
h := z
h += ~(z << 5)
@@ -24,14 +24,14 @@ ginger_hash16 :: proc(x: u16) -> u16 {
}
ginger8 :: proc(data: []byte) -> u8 {
ginger8 :: proc "contextless" (data: []byte) -> u8 {
h := ginger_hash8(0)
for b in data {
h ~= ginger_hash8(b)
}
return h
}
ginger16 :: proc(data: []byte) -> u16 {
ginger16 :: proc "contextless" (data: []byte) -> u16 {
h := ginger_hash16(0)
for b in data {
h ~= ginger_hash16(u16(b))