mirror of
https://github.com/luau-lang/luau.git
synced 2025-01-08 12:29:09 +00:00
c2ba1058c3
# What's changed? - Record the location of properties for table types (closes #802) - Implement stricter UTF-8 validations as per the RFC (https://github.com/luau-lang/rfcs/pull/1) - Implement `buffer` as a new type in both the old and new solvers. - Changed errors produced by some `buffer` builtins to be a bit more generic to avoid platform-dependent error messages. - Fixed a bug where `Unifier` would copy some persistent types, tripping some internal assertions. - Type checking rules on relational operators is now a little bit more lax. - Improve dead code elimination for some `if` statements with complex always-false conditions ## New type solver - Dataflow analysis now generates phi nodes on exit of branches. - Dataflow analysis avoids producing a new definition for locals or properties that are not owned by that loop. - If a function parameter has been constrained to `never`, report errors at all uses of that parameter within that function. - Switch to using the new `Luau::Set` to replace `std::unordered_set` to alleviate some poor allocation characteristics which was negatively affecting overall performance. - Subtyping can now report many failing reasons instead of just the first one that we happened to find during the test. - Subtyping now also report reasons for type pack mismatches. - When visiting `if` statements or expressions, the resulting context are the common terms in both branches. ## Native codegen - Implement support for `buffer` builtins to its IR for x64 and A64. - Optimized `table.insert` by not inserting a table barrier if it is fastcalled with a constant. ## Internal Contributors Co-authored-by: Aaron Weiss <aaronweiss@roblox.com> Co-authored-by: Alexander McCord <amccord@roblox.com> Co-authored-by: Andy Friesen <afriesen@roblox.com> Co-authored-by: Arseny Kapoulkine <arseny@roblox.com> Co-authored-by: Aviral Goel <agoel@roblox.com> Co-authored-by: Lily Brown <lbrown@roblox.com> Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
33 lines
948 B
Lua
33 lines
948 B
Lua
local bench = script and require(script.Parent.bench_support) or require("bench_support")
|
|
|
|
local samples = 100_000
|
|
|
|
-- create two 16-bit stereo pcm audio buffers
|
|
local ch1 = buffer.create(samples * 2 * 2)
|
|
local ch2 = buffer.create(samples * 2 * 2)
|
|
|
|
-- just init with random data
|
|
for i = 0, samples * 2 - 1 do
|
|
buffer.writei16(ch1, i * 2, math.random(-32768, 32767))
|
|
buffer.writei16(ch2, i * 2, math.random(-32768, 32767))
|
|
end
|
|
|
|
function test()
|
|
local mix = buffer.create(samples * 2 * 2)
|
|
|
|
for i = 0, samples - 1 do
|
|
local s1l = buffer.readi16(ch1, i * 4)
|
|
local s1r = buffer.readi16(ch1, i * 4 + 2)
|
|
|
|
local s2l = buffer.readi16(ch2, i * 4)
|
|
local s2r = buffer.readi16(ch2, i * 4 + 2)
|
|
|
|
local combinedl = s1l + s2l - s1l * s2l / 32768
|
|
local combinedr = s1r + s2r - s1r * s2r / 32768
|
|
|
|
buffer.writei16(mix, i * 4, combinedl)
|
|
buffer.writei16(mix, i * 4 + 2, combinedr)
|
|
end
|
|
end
|
|
|
|
bench.runCode(test, "pcmmix")
|