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Fuzzer #8661

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2 changes: 2 additions & 0 deletions src/tools/fuzzing.h
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Original file line number Diff line number Diff line change
Expand Up @@ -464,6 +464,8 @@ class TranslateToFuzzReader {
Expression* makeGlobalGet(Type type);
Expression* makeGlobalSet(Type type);
Expression* makeTupleMake(Type type);
Expression* makeWideIntAddSub(Type type);
Expression* makeWideIntMul(Type type);
Expression* makeTupleExtract(Type type);
Expression* makePointer();
Expression* makeNonAtomicLoad(Type type);
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24 changes: 24 additions & 0 deletions src/tools/fuzzing/fuzzing.cpp
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Expand Up @@ -2564,6 +2564,10 @@ Expression* TranslateToFuzzReader::_makeConcrete(Type type) {
}
if (type.isTuple()) {
options.add(FeatureSet::Multivalue, &Self::makeTupleMake);
if (type == Types::getI64Pair()) {
options.add(FeatureSet::WideArithmetic, &Self::makeWideIntAddSub);
options.add(FeatureSet::WideArithmetic, &Self::makeWideIntMul);
}
}
if (type.isRef()) {
auto heapType = type.getHeapType();
Expand Down Expand Up @@ -3246,6 +3250,26 @@ Expression* TranslateToFuzzReader::makeTupleMake(Type type) {
return builder.makeTupleMake(std::move(elements));
}

Expression* TranslateToFuzzReader::makeWideIntAddSub(Type type) {
assert(wasm.features.hasWideArithmetic());
assert(type == Types::getI64Pair());
auto op = upTo(2) == 0 ? AddInt128 : SubInt128;
auto* leftLow = make(Type::i64);
auto* leftHigh = make(Type::i64);
auto* rightLow = make(Type::i64);
auto* rightHigh = make(Type::i64);
return builder.makeWideIntAddSub(op, leftLow, leftHigh, rightLow, rightHigh);
}

Expression* TranslateToFuzzReader::makeWideIntMul(Type type) {
assert(wasm.features.hasWideArithmetic());
assert(type == Types::getI64Pair());
auto op = upTo(2) == 0 ? MulWideSInt64 : MulWideUInt64;
auto* left = make(Type::i64);
auto* right = make(Type::i64);
return builder.makeWideIntMul(op, left, right);
}

Expression* TranslateToFuzzReader::makeTupleExtract(Type type) {
// Tuples can require locals in binary format conversions.
if (!type.isDefaultable()) {
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