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LibWasm: Fix sign issues in SIMD cmp ops

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Diego 2024-07-11 21:23:00 -07:00 committed by Ali Mohammad Pur
parent 0a0651f34e
commit 4c7ef01b44
Notes: sideshowbarker 2024-07-17 06:51:10 +09:00 
Author: https://github.com/dzfrias
Commit: https://github.com/LadybirdBrowser/ladybird/commit/4c7ef01b44
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/594
Reviewed-by: https://github.com/alimpfard
1 changed files with 5 additions and 2 deletions
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7
Userland/Libraries/LibWasm/AbstractMachine/Operators.h
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@ -289,8 +289,11 @@ struct VectorCmpOp {
auto result = bit_cast<Native128ByteVectorOf<ElementType, SetSign>>(c1);
auto other = bit_cast<Native128ByteVectorOf<ElementType, SetSign>>(c2);
Op op;
for (size_t i = 0; i < VectorSize; ++i)
result[i] = op(result[i], other[i]) ? static_cast<MakeUnsigned<ElementType>>(-1) : 0;
for (size_t i = 0; i < VectorSize; ++i) {
SetSign<ElementType> lhs = result[i];
SetSign<ElementType> rhs = other[i];
result[i] = op(lhs, rhs) ? static_cast<MakeUnsigned<ElementType>>(-1) : 0;
}
return bit_cast<u128>(result);
}