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} ),
// runtime integer left shift.
ForTypes< CustomPattern< IntegerType, IntegerType::Pattern >,
CustomPattern< IntegerType, IntegerType::PatternUnsigned > >(
[]( auto&& c, auto&& lhs, auto&& rhs ) -> Value
{
return BuildComputedValue( lhs.type(),
Shl( lhs, rhs ) );
} )
)
);
BuildParseRule( e, ">>"_sid,
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} ),
// runtime integer left shift.
ForTypes< CustomPattern< IntegerType, IntegerType::Pattern >,
CustomPattern< IntegerType, IntegerType::PatternUnsigned > >(
[]( auto&& c, auto&& lhs, auto&& rhs ) -> Value
{
using namespace goose::builtins::exprbuilder;
auto cb = c.codeBuilder();
auto cfg = cb->cfg();
assert( cfg );
// Shifting for a number of bits equal or larger than the bitsize
// of lhs is an undefined behavior, so we require verification that
// it won't happen.
// Extract the integer type of lhs to retreieve its bit size.
auto lhsType = *FromValue< IntegerType >( *ValueFromIRExpr( lhs.type() ) );
auto bitSizeValue = Value( rhs.type(), APSInt::get( lhsType.m_numBits) );
cfg->currentBB()->emplace_back(
llr::Assert( ULT( rhs, bitSizeValue ) )
);
return BuildComputedValue( lhs.type(),
Shl( lhs, rhs ) );
} )
)
);
BuildParseRule( e, ">>"_sid,
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// runtime signed integer right shift, defined to work for any two integers of same
// bit size.
ForTypes< CustomPattern< IntegerType, IntegerType::PatternSigned >,
CustomPattern< IntegerType, IntegerType::PatternUnsigned > >(
[]( auto&& c, auto&& lhs, auto&& rhs ) -> Value
{
return BuildComputedValue( lhs.type(),
AShr( lhs, rhs ) );
} ),
// runtime unsigned integer right shift, defined to work for any two integers of same
// bit size.
ForType< CustomPattern< IntegerType, IntegerType::PatternUnsigned > >(
[]( auto&& c, auto&& lhs, auto&& rhs ) -> Value
{
return BuildComputedValue( lhs.type(),
LShr( lhs, rhs ) );
} )
)
);
}
}
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// runtime signed integer right shift, defined to work for any two integers of same
// bit size.
ForTypes< CustomPattern< IntegerType, IntegerType::PatternSigned >,
CustomPattern< IntegerType, IntegerType::PatternUnsigned > >(
[]( auto&& c, auto&& lhs, auto&& rhs ) -> Value
{
using namespace goose::builtins::exprbuilder;
auto cb = c.codeBuilder();
auto cfg = cb->cfg();
assert( cfg );
// Shifting for a number of bits equal or larger than the bitsize
// of lhs is an undefined behavior, so we require verification that
// it won't happen.
// Extract the integer type of lhs to retreieve its bit size.
auto lhsType = *FromValue< IntegerType >( *ValueFromIRExpr( lhs.type() ) );
auto bitSizeValue = Value( rhs.type(), APSInt::get( lhsType.m_numBits) );
cfg->currentBB()->emplace_back(
llr::Assert( ULT( rhs, bitSizeValue ) )
);
return BuildComputedValue( lhs.type(),
AShr( lhs, rhs ) );
} ),
// runtime unsigned integer right shift, defined to work for any two integers of same
// bit size.
ForType< CustomPattern< IntegerType, IntegerType::PatternUnsigned > >(
[]( auto&& c, auto&& lhs, auto&& rhs ) -> Value
{
using namespace goose::builtins::exprbuilder;
auto cb = c.codeBuilder();
auto cfg = cb->cfg();
assert( cfg );
// Shifting for a number of bits equal or larger than the bitsize
// of lhs is an undefined behavior, so we require verification that
// it won't happen.
// Extract the integer type of lhs to retreieve its bit size.
auto lhsType = *FromValue< IntegerType >( *ValueFromIRExpr( lhs.type() ) );
auto bitSizeValue = Value( rhs.type(), APSInt::get( lhsType.m_numBits) );
cfg->currentBB()->emplace_back(
llr::Assert( ULT( rhs, bitSizeValue ) )
);
return BuildComputedValue( lhs.type(),
LShr( lhs, rhs ) );
} )
)
);
}
}
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