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LibJS: Add fast path for float to int put

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This commit adds a fast path for putting values into a TypedArray of an
integer type, when the value being put in is a double. This leads to a
6% speedup on JetStream/gcc-loops.js.
This commit is contained in:
R-Goc 2025-05-13 14:12:50 +02:00 • committed by Andreas Kling
parent 0061c64ee6
commit 34c14d4e6d
Notes: github-actions[bot] 2025-05-14 10:34:33 +00:00
1 changed files with 18 additions and 0 deletions
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18
Libraries/LibJS/Bytecode/Interpreter.cpp
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@ -1431,6 +1431,24 @@ inline ThrowCompletionOr<void> put_by_value(VM& vm, Value base, Optional<FlyStri
case TypedArrayBase::Kind::Float64Array:
fast_typed_array_set_element<double>(typed_array, index, value.as_double());
return {};
case TypedArrayBase::Kind::Int8Array:
fast_typed_array_set_element<i8>(typed_array, index, MUST(value.to_i8(vm)));
return {};
case TypedArrayBase::Kind::Int16Array:
fast_typed_array_set_element<i16>(typed_array, index, MUST(value.to_i16(vm)));
return {};
case TypedArrayBase::Kind::Int32Array:
fast_typed_array_set_element<i32>(typed_array, index, MUST(value.to_i32(vm)));
return {};
case TypedArrayBase::Kind::Uint8Array:
fast_typed_array_set_element<u8>(typed_array, index, MUST(value.to_u8(vm)));
return {};
case TypedArrayBase::Kind::Uint16Array:
fast_typed_array_set_element<u16>(typed_array, index, MUST(value.to_u16(vm)));
return {};
case TypedArrayBase::Kind::Uint32Array:
fast_typed_array_set_element<u32>(typed_array, index, MUST(value.to_u32(vm)));
return {};
default:
break;
}