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Fix bug in array to storage copy routine.

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This commit is contained in:
chriseth 2020-11-17 14:51:43 +01:00
parent adaf1ff7df
commit fffd0306f5
3 changed files with 12 additions and 4 deletions
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12
libsolidity/codegen/YulUtilFunctions.cpp
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@ -1542,7 +1542,7 @@ string YulUtilFunctions::copyArrayToStorageFunction(ArrayType const& _fromType,
<updateStorageValue>(elementSlot<?isValueType>, elementOffset</isValueType>, <elementValues>)
srcPtr := add(srcPtr, <stride>)
srcPtr := add(srcPtr, <srcStride>)
<?multipleItemsPerSlot>
elementOffset := add(elementOffset, <storageStride>)
@ -1552,7 +1552,6 @@ string YulUtilFunctions::copyArrayToStorageFunction(ArrayType const& _fromType,
}
<!multipleItemsPerSlot>
elementSlot := add(elementSlot, <storageSize>)
elementOffset := 0
</multipleItemsPerSlot>
}
}
@ -1568,7 +1567,6 @@ string YulUtilFunctions::copyArrayToStorageFunction(ArrayType const& _fromType,
templ("fromCalldata", fromCalldata);
templ("isToDynamic", _toType.isDynamicallySized());
templ("srcDataLocation", arrayDataAreaFunction(_fromType));
templ("isFromMemoryDynamic", _fromType.isDynamicallySized() && _fromType.dataStoredIn(DataLocation::Memory));
if (fromCalldata)
{
templ("dynamicallySizedBase", _fromType.baseType()->isDynamicallySized());
@ -1589,7 +1587,13 @@ string YulUtilFunctions::copyArrayToStorageFunction(ArrayType const& _fromType,
_fromType.baseType()->stackItems().size()
));
templ("updateStorageValue", updateStorageValueFunction(*_fromType.baseType(), *_toType.baseType()));
templ("stride", to_string(fromCalldata ? _fromType.calldataStride() : _fromType.memoryStride()));
templ("srcStride",
fromCalldata ?
to_string(_fromType.calldataStride()) :
fromMemory ?
to_string(_fromType.memoryStride()) :
formatNumber(_fromType.baseType()->storageSize())
);
templ("multipleItemsPerSlot", _toType.storageStride() <= 16);
templ("storageStride", to_string(_toType.storageStride()));
templ("storageSize", _toType.baseType()->storageSize().str());

2
test/libsolidity/semanticTests/array/copying/array_copy_nested_array.sol
View File

@ -11,5 +11,7 @@ contract c {
}
}
// ====
// compileViaYul: also
// ----
// test(uint256[2][]): 32, 3, 7, 8, 9, 10, 11, 12 -> 10

2
test/libsolidity/semanticTests/array/copying/array_copy_storage_storage_struct.sol
View File

@ -15,6 +15,8 @@ contract c {
data2 = data1;
}
}
// ====
// compileViaYul: also
// ----
// test() -> 4, 5
// storage: empty