v8/test/cctest/test-representation.cc

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#include "cctest.h"
#include "types.h"
#include "property-details.h"

using namespace v8::internal;


void TestPairPositive(Representation more_general,
              Representation less_general) {
  CHECK(more_general.is_more_general_than(less_general));
}


void TestPairNegative(Representation more_general,
              Representation less_general) {
  CHECK(!more_general.is_more_general_than(less_general));
}


TEST(RepresentationMoreGeneralThan) {
  TestPairNegative(Representation::None(), Representation::None());
  TestPairPositive(Representation::Integer8(), Representation::None());
  TestPairPositive(Representation::UInteger8(), Representation::None());
  TestPairPositive(Representation::Integer16(), Representation::None());
  TestPairPositive(Representation::UInteger16(), Representation::None());
  TestPairPositive(Representation::Smi(), Representation::None());
  TestPairPositive(Representation::Integer32(), Representation::None());
  TestPairPositive(Representation::HeapObject(), Representation::None());
  TestPairPositive(Representation::Double(), Representation::None());
  TestPairPositive(Representation::Tagged(), Representation::None());

  TestPairNegative(Representation::None(), Representation::Integer8());
  TestPairNegative(Representation::Integer8(), Representation::Integer8());
  TestPairNegative(Representation::UInteger8(), Representation::Integer8());
  TestPairPositive(Representation::Integer16(), Representation::Integer8());
  TestPairPositive(Representation::UInteger16(), Representation::Integer8());
  TestPairPositive(Representation::Smi(), Representation::Integer8());
  TestPairPositive(Representation::Integer32(), Representation::Integer8());
  TestPairNegative(Representation::HeapObject(), Representation::Integer8());
  TestPairPositive(Representation::Double(), Representation::Integer8());
  TestPairPositive(Representation::Tagged(), Representation::Integer8());

  TestPairNegative(Representation::None(), Representation::UInteger8());
  TestPairNegative(Representation::Integer8(), Representation::UInteger8());
  TestPairNegative(Representation::UInteger8(), Representation::UInteger8());
  TestPairPositive(Representation::Integer16(), Representation::UInteger8());
  TestPairPositive(Representation::UInteger16(), Representation::UInteger8());
  TestPairPositive(Representation::Smi(), Representation::UInteger8());
  TestPairPositive(Representation::Integer32(), Representation::UInteger8());
  TestPairNegative(Representation::HeapObject(), Representation::UInteger8());
  TestPairPositive(Representation::Double(), Representation::UInteger8());
  TestPairPositive(Representation::Tagged(), Representation::UInteger8());

  TestPairNegative(Representation::None(), Representation::Integer16());
  TestPairNegative(Representation::Integer8(), Representation::Integer16());
  TestPairNegative(Representation::UInteger8(), Representation::Integer16());
  TestPairNegative(Representation::Integer16(), Representation::Integer16());
  TestPairNegative(Representation::UInteger16(), Representation::Integer16());
  TestPairPositive(Representation::Smi(), Representation::Integer16());
  TestPairPositive(Representation::Integer32(), Representation::Integer16());
  TestPairNegative(Representation::HeapObject(), Representation::Integer16());
  TestPairPositive(Representation::Double(), Representation::Integer16());
  TestPairPositive(Representation::Tagged(), Representation::Integer16());

  TestPairNegative(Representation::None(), Representation::UInteger16());
  TestPairNegative(Representation::Integer8(), Representation::UInteger16());
  TestPairNegative(Representation::UInteger8(), Representation::UInteger16());
  TestPairNegative(Representation::Integer16(), Representation::UInteger16());
  TestPairNegative(Representation::UInteger16(), Representation::UInteger16());
  TestPairPositive(Representation::Smi(), Representation::UInteger16());
  TestPairPositive(Representation::Integer32(), Representation::UInteger16());
  TestPairNegative(Representation::HeapObject(), Representation::UInteger16());
  TestPairPositive(Representation::Double(), Representation::UInteger16());
  TestPairPositive(Representation::Tagged(), Representation::UInteger16());

  TestPairNegative(Representation::None(), Representation::Smi());
  TestPairNegative(Representation::Integer8(), Representation::Smi());
  TestPairNegative(Representation::UInteger8(), Representation::Smi());
  TestPairNegative(Representation::Integer16(), Representation::Smi());
  TestPairNegative(Representation::UInteger16(), Representation::Smi());
  TestPairNegative(Representation::Smi(), Representation::Smi());
  TestPairPositive(Representation::Integer32(), Representation::Smi());
  TestPairNegative(Representation::HeapObject(), Representation::Smi());
  TestPairPositive(Representation::Double(), Representation::Smi());
  TestPairPositive(Representation::Tagged(), Representation::Smi());

  TestPairNegative(Representation::None(), Representation::Integer32());
  TestPairNegative(Representation::Integer8(), Representation::Integer32());
  TestPairNegative(Representation::UInteger8(), Representation::Integer32());
  TestPairNegative(Representation::Integer16(), Representation::Integer32());
  TestPairNegative(Representation::UInteger16(), Representation::Integer32());
  TestPairNegative(Representation::Smi(), Representation::Integer32());
  TestPairNegative(Representation::Integer32(), Representation::Integer32());
  TestPairNegative(Representation::HeapObject(), Representation::Integer32());
  TestPairPositive(Representation::Double(), Representation::Integer32());
  TestPairPositive(Representation::Tagged(), Representation::Integer32());

  TestPairNegative(Representation::None(), Representation::External());
  TestPairNegative(Representation::External(), Representation::External());
  TestPairPositive(Representation::External(), Representation::None());
}