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Add i64 bit rotation

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This commit is contained in:
Rerumu 2022-07-02 05:29:46 -04:00
parent 9eb44f0ed8
commit 0cacb0b996
3 changed files with 56 additions and 4 deletions
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29
codegen/luau/runtime/numeric_tb.lua
View File

@ -1,6 +1,7 @@
local Numeric = {}
local NUM_ZERO, NUM_ONE, NUM_BIT_26, NUM_BIT_52
local NUM_ZERO, NUM_ONE, NUM_SIX_FOUR
local NUM_BIT_26, NUM_BIT_52
local bit_lshift = bit32.lshift
local bit_rshift = bit32.rshift
@ -18,7 +19,7 @@ local table_freeze = table.freeze
local from_u32, from_u64, into_u64
local num_subtract, num_divide_unsigned, num_negate
local num_or, num_shift_left
local num_or, num_shift_left, num_shift_right_unsigned
local num_is_negative, num_is_zero, num_is_less_unsigned
function Numeric.from_u32(data_1, data_2)
@ -275,6 +276,28 @@ function Numeric.shift_right_signed(lhs, rhs)
end
end
function Numeric.rotate_left(lhs, rhs)
if num_is_zero(rhs) then
return lhs
else
local data_1 = num_shift_left(lhs, rhs)
local data_2 = num_shift_right_unsigned(lhs, num_subtract(NUM_SIX_FOUR, rhs))
return num_or(data_1, data_2)
end
end
function Numeric.rotate_right(lhs, rhs)
if num_is_zero(rhs) then
return lhs
else
local data_1 = num_shift_right_unsigned(lhs, rhs)
local data_2 = num_shift_left(lhs, num_subtract(NUM_SIX_FOUR, rhs))
return num_or(data_1, data_2)
end
end
function Numeric.is_negative(value)
return value[2] >= 0x80000000
end
@ -337,6 +360,7 @@ num_negate = Numeric.negate
num_or = Numeric.bit_or
num_shift_left = Numeric.shift_left
num_shift_right_unsigned = Numeric.shift_right_unsigned
num_is_negative = Numeric.is_negative
num_is_zero = Numeric.is_zero
@ -344,6 +368,7 @@ num_is_less_unsigned = Numeric.is_less_unsigned
NUM_ZERO = from_u64(0)
NUM_ONE = from_u64(1)
NUM_SIX_FOUR = from_u64(64)
NUM_BIT_26 = from_u64(0x4000000)
NUM_BIT_52 = from_u64(0x10000000000000)

29
codegen/luau/runtime/numeric_v3.lua
View File

@ -1,6 +1,7 @@
local Numeric = {}
local NUM_ZERO, NUM_ONE, NUM_BIT_26, NUM_BIT_52
local NUM_ZERO, NUM_ONE, NUM_SIX_FOUR
local NUM_BIT_26, NUM_BIT_52
local bit_lshift = bit32.lshift
local bit_rshift = bit32.rshift
@ -16,7 +17,7 @@ local bit_replace = bit32.replace
local from_u32, from_u64, into_u64
local num_subtract, num_divide_unsigned, num_negate
local num_or, num_shift_left
local num_or, num_shift_left, num_shift_right_unsigned
local num_is_negative, num_is_zero, num_is_less_unsigned
-- X: a[0 ..21]
@ -311,6 +312,28 @@ function Numeric.shift_right_signed(lhs, rhs)
end
end
function Numeric.rotate_left(lhs, rhs)
if num_is_zero(rhs) then
return lhs
else
local data_1 = num_shift_left(lhs, rhs)
local data_2 = num_shift_right_unsigned(lhs, num_subtract(NUM_SIX_FOUR, rhs))
return num_or(data_1, data_2)
end
end
function Numeric.rotate_right(lhs, rhs)
if num_is_zero(rhs) then
return lhs
else
local data_1 = num_shift_right_unsigned(lhs, rhs)
local data_2 = num_shift_left(lhs, num_subtract(NUM_SIX_FOUR, rhs))
return num_or(data_1, data_2)
end
end
function Numeric.is_negative(value)
return value.Z >= 0x80000
end
@ -373,6 +396,7 @@ num_negate = Numeric.negate
num_or = Numeric.bit_or
num_shift_left = Numeric.shift_left
num_shift_right_unsigned = Numeric.shift_right_unsigned
num_is_negative = Numeric.is_negative
num_is_zero = Numeric.is_zero
@ -380,6 +404,7 @@ num_is_less_unsigned = Numeric.is_less_unsigned
NUM_ZERO = from_u64(0)
NUM_ONE = from_u64(1)
NUM_SIX_FOUR = from_u64(64)
NUM_BIT_26 = from_u64(0x4000000)
NUM_BIT_52 = from_u64(0x10000000000000)

2
codegen/luau/runtime/runtime.lua
View File

@ -352,6 +352,8 @@ do
shl.i64 = Integer.shift_left
shr.i64 = Integer.shift_right_signed
shr.u64 = Integer.shift_right_unsigned
rotl.i64 = Integer.rotate_left
rotr.i64 = Integer.rotate_right
module.shl = shl
module.shr = shr