test/cctest/compiler/codegen-tester.cc

// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "test/cctest/compiler/codegen-tester.h"

#include "src/base/overflowing-math.h"
#include "src/objects-inl.h"
#include "test/cctest/cctest.h"
#include "test/cctest/compiler/value-helper.h"

namespace v8 {
namespace internal {
namespace compiler {

TEST(CompareWrapper) {
  // Who tests the testers?
  // If CompareWrapper is broken, then test expectations will be broken.
  CompareWrapper wWord32Equal(IrOpcode::kWord32Equal);
  CompareWrapper wInt32LessThan(IrOpcode::kInt32LessThan);
  CompareWrapper wInt32LessThanOrEqual(IrOpcode::kInt32LessThanOrEqual);
  CompareWrapper wUint32LessThan(IrOpcode::kUint32LessThan);
  CompareWrapper wUint32LessThanOrEqual(IrOpcode::kUint32LessThanOrEqual);

  {
    FOR_INT32_INPUTS(pl) {
      FOR_INT32_INPUTS(pr) {
        int32_t a = *pl;
        int32_t b = *pr;
        CHECK_EQ(a == b, wWord32Equal.Int32Compare(a, b));
        CHECK_EQ(a < b, wInt32LessThan.Int32Compare(a, b));
        CHECK_EQ(a <= b, wInt32LessThanOrEqual.Int32Compare(a, b));
      }
    }
  }

  {
    FOR_UINT32_INPUTS(pl) {
      FOR_UINT32_INPUTS(pr) {
        uint32_t a = *pl;
        uint32_t b = *pr;
        CHECK_EQ(a == b, wWord32Equal.Int32Compare(a, b));
        CHECK_EQ(a < b, wUint32LessThan.Int32Compare(a, b));
        CHECK_EQ(a <= b, wUint32LessThanOrEqual.Int32Compare(a, b));
      }
    }
  }

  CHECK_EQ(true, wWord32Equal.Int32Compare(0, 0));
  CHECK_EQ(true, wWord32Equal.Int32Compare(257, 257));
  CHECK_EQ(true, wWord32Equal.Int32Compare(65539, 65539));
  CHECK_EQ(true, wWord32Equal.Int32Compare(-1, -1));
  CHECK_EQ(true, wWord32Equal.Int32Compare(0xFFFFFFFF, 0xFFFFFFFF));

  CHECK_EQ(false, wWord32Equal.Int32Compare(0, 1));
  CHECK_EQ(false, wWord32Equal.Int32Compare(257, 256));
  CHECK_EQ(false, wWord32Equal.Int32Compare(65539, 65537));
  CHECK_EQ(false, wWord32Equal.Int32Compare(-1, -2));
  CHECK_EQ(false, wWord32Equal.Int32Compare(0xFFFFFFFF, 0xFFFFFFFE));

  CHECK_EQ(false, wInt32LessThan.Int32Compare(0, 0));
  CHECK_EQ(false, wInt32LessThan.Int32Compare(357, 357));
  CHECK_EQ(false, wInt32LessThan.Int32Compare(75539, 75539));
  CHECK_EQ(false, wInt32LessThan.Int32Compare(-1, -1));
  CHECK_EQ(false, wInt32LessThan.Int32Compare(0xFFFFFFFF, 0xFFFFFFFF));

  CHECK_EQ(true, wInt32LessThan.Int32Compare(0, 1));
  CHECK_EQ(true, wInt32LessThan.Int32Compare(456, 457));
  CHECK_EQ(true, wInt32LessThan.Int32Compare(85537, 85539));
  CHECK_EQ(true, wInt32LessThan.Int32Compare(-2, -1));
  CHECK_EQ(true, wInt32LessThan.Int32Compare(0xFFFFFFFE, 0xFFFFFFFF));

  CHECK_EQ(false, wInt32LessThan.Int32Compare(1, 0));
  CHECK_EQ(false, wInt32LessThan.Int32Compare(457, 456));
  CHECK_EQ(false, wInt32LessThan.Int32Compare(85539, 85537));
  CHECK_EQ(false, wInt32LessThan.Int32Compare(-1, -2));
  CHECK_EQ(false, wInt32LessThan.Int32Compare(0xFFFFFFFF, 0xFFFFFFFE));

  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(0, 0));
  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(357, 357));
  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(75539, 75539));
  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(-1, -1));
  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(0xFFFFFFFF, 0xFFFFFFFF));

  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(0, 1));
  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(456, 457));
  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(85537, 85539));
  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(-2, -1));
  CHECK_EQ(true, wInt32LessThanOrEqual.Int32Compare(0xFFFFFFFE, 0xFFFFFFFF));

  CHECK_EQ(false, wInt32LessThanOrEqual.Int32Compare(1, 0));
  CHECK_EQ(false, wInt32LessThanOrEqual.Int32Compare(457, 456));
  CHECK_EQ(false, wInt32LessThanOrEqual.Int32Compare(85539, 85537));
  CHECK_EQ(false, wInt32LessThanOrEqual.Int32Compare(-1, -2));
  CHECK_EQ(false, wInt32LessThanOrEqual.Int32Compare(0xFFFFFFFF, 0xFFFFFFFE));

  // Unsigned comparisons.
  CHECK_EQ(false, wUint32LessThan.Int32Compare(0, 0));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(357, 357));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(75539, 75539));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(-1, -1));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(0xFFFFFFFF, 0xFFFFFFFF));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(0xFFFFFFFF, 0));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(-2999, 0));

  CHECK_EQ(true, wUint32LessThan.Int32Compare(0, 1));
  CHECK_EQ(true, wUint32LessThan.Int32Compare(456, 457));
  CHECK_EQ(true, wUint32LessThan.Int32Compare(85537, 85539));
  CHECK_EQ(true, wUint32LessThan.Int32Compare(-11, -10));
  CHECK_EQ(true, wUint32LessThan.Int32Compare(0xFFFFFFFE, 0xFFFFFFFF));
  CHECK_EQ(true, wUint32LessThan.Int32Compare(0, 0xFFFFFFFF));
  CHECK_EQ(true, wUint32LessThan.Int32Compare(0, -2996));

  CHECK_EQ(false, wUint32LessThan.Int32Compare(1, 0));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(457, 456));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(85539, 85537));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(-10, -21));
  CHECK_EQ(false, wUint32LessThan.Int32Compare(0xFFFFFFFF, 0xFFFFFFFE));

  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(0, 0));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(357, 357));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(75539, 75539));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(-1, -1));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(0xFFFFFFFF, 0xFFFFFFFF));

  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(0, 1));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(456, 457));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(85537, 85539));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(-300, -299));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(-300, -300));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(0xFFFFFFFE, 0xFFFFFFFF));
  CHECK_EQ(true, wUint32LessThanOrEqual.Int32Compare(0, -2995));

  CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(1, 0));
  CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(457, 456));
  CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(85539, 85537));
  CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(-130, -170));
  CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(0xFFFFFFFF, 0xFFFFFFFE));
  CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(-2997, 0));

  CompareWrapper wFloat64Equal(IrOpcode::kFloat64Equal);
  CompareWrapper wFloat64LessThan(IrOpcode::kFloat64LessThan);
  CompareWrapper wFloat64LessThanOrEqual(IrOpcode::kFloat64LessThanOrEqual);

  // Check NaN handling.
  double nan = std::numeric_limits<double>::quiet_NaN();
  double inf = V8_INFINITY;
  CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, 0.0));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, 1.0));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, inf));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, -inf));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, nan));

  CHECK_EQ(false, wFloat64Equal.Float64Compare(0.0, nan));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(1.0, nan));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(inf, nan));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(-inf, nan));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, nan));

  CHECK_EQ(false, wFloat64LessThan.Float64Compare(nan, 0.0));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(nan, 1.0));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(nan, inf));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(nan, -inf));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(nan, nan));

  CHECK_EQ(false, wFloat64LessThan.Float64Compare(0.0, nan));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(1.0, nan));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(inf, nan));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(-inf, nan));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(nan, nan));

  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(nan, 0.0));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(nan, 1.0));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(nan, inf));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(nan, -inf));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(nan, nan));

  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(0.0, nan));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(1.0, nan));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(inf, nan));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(-inf, nan));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(nan, nan));

  // Check inf handling.
  CHECK_EQ(false, wFloat64Equal.Float64Compare(inf, 0.0));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(inf, 1.0));
  CHECK_EQ(true, wFloat64Equal.Float64Compare(inf, inf));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(inf, -inf));

  CHECK_EQ(false, wFloat64Equal.Float64Compare(0.0, inf));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(1.0, inf));
  CHECK_EQ(true, wFloat64Equal.Float64Compare(inf, inf));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(-inf, inf));

  CHECK_EQ(false, wFloat64LessThan.Float64Compare(inf, 0.0));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(inf, 1.0));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(inf, inf));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(inf, -inf));

  CHECK_EQ(true, wFloat64LessThan.Float64Compare(0.0, inf));
  CHECK_EQ(true, wFloat64LessThan.Float64Compare(1.0, inf));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(inf, inf));
  CHECK_EQ(true, wFloat64LessThan.Float64Compare(-inf, inf));

  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(inf, 0.0));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(inf, 1.0));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(inf, inf));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(inf, -inf));

  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(0.0, inf));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(1.0, inf));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(inf, inf));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(-inf, inf));

  // Check -inf handling.
  CHECK_EQ(false, wFloat64Equal.Float64Compare(-inf, 0.0));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(-inf, 1.0));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(-inf, inf));
  CHECK_EQ(true, wFloat64Equal.Float64Compare(-inf, -inf));

  CHECK_EQ(false, wFloat64Equal.Float64Compare(0.0, -inf));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(1.0, -inf));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(inf, -inf));
  CHECK_EQ(true, wFloat64Equal.Float64Compare(-inf, -inf));

  CHECK_EQ(true, wFloat64LessThan.Float64Compare(-inf, 0.0));
  CHECK_EQ(true, wFloat64LessThan.Float64Compare(-inf, 1.0));
  CHECK_EQ(true, wFloat64LessThan.Float64Compare(-inf, inf));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(-inf, -inf));

  CHECK_EQ(false, wFloat64LessThan.Float64Compare(0.0, -inf));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(1.0, -inf));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(inf, -inf));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(-inf, -inf));

  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(-inf, 0.0));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(-inf, 1.0));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(-inf, inf));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(-inf, -inf));

  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(0.0, -inf));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(1.0, -inf));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(inf, -inf));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(-inf, -inf));

  // Check basic values.
  CHECK_EQ(true, wFloat64Equal.Float64Compare(0, 0));
  CHECK_EQ(true, wFloat64Equal.Float64Compare(257.1, 257.1));
  CHECK_EQ(true, wFloat64Equal.Float64Compare(65539.1, 65539.1));
  CHECK_EQ(true, wFloat64Equal.Float64Compare(-1.1, -1.1));

  CHECK_EQ(false, wFloat64Equal.Float64Compare(0, 1));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(257.2, 256.2));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(65539.2, 65537.2));
  CHECK_EQ(false, wFloat64Equal.Float64Compare(-1.2, -2.2));

  CHECK_EQ(false, wFloat64LessThan.Float64Compare(0, 0));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(357.3, 357.3));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(75539.3, 75539.3));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(-1.3, -1.3));

  CHECK_EQ(true, wFloat64LessThan.Float64Compare(0, 1));
  CHECK_EQ(true, wFloat64LessThan.Float64Compare(456.4, 457.4));
  CHECK_EQ(true, wFloat64LessThan.Float64Compare(85537.4, 85539.4));
  CHECK_EQ(true, wFloat64LessThan.Float64Compare(-2.4, -1.4));

  CHECK_EQ(false, wFloat64LessThan.Float64Compare(1, 0));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(457.5, 456.5));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(85539.5, 85537.5));
  CHECK_EQ(false, wFloat64LessThan.Float64Compare(-1.5, -2.5));

  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(0, 0));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(357.6, 357.6));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(75539.6, 75539.6));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(-1.6, -1.6));

  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(0, 1));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(456.7, 457.7));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(85537.7, 85539.7));
  CHECK_EQ(true, wFloat64LessThanOrEqual.Float64Compare(-2.7, -1.7));

  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(1, 0));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(457.8, 456.8));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(85539.8, 85537.8));
  CHECK_EQ(false, wFloat64LessThanOrEqual.Float64Compare(-1.8, -2.8));
}


void Int32BinopInputShapeTester::TestAllInputShapes() {
  Vector<const int32_t> inputs = ValueHelper::int32_vector();
  int num_int_inputs = static_cast<int>(inputs.size());
  if (num_int_inputs > 16) num_int_inputs = 16;  // limit to 16 inputs

  for (int i = -2; i < num_int_inputs; i++) {    // for all left shapes
    for (int j = -2; j < num_int_inputs; j++) {  // for all right shapes
      if (i >= 0 && j >= 0) break;               // No constant/constant combos
      RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
                                           MachineType::Int32());
      Node* p0 = m.Parameter(0);
      Node* p1 = m.Parameter(1);
      Node* n0;
      Node* n1;

      // left = Parameter | Load | Constant
      if (i == -2) {
        n0 = p0;
      } else if (i == -1) {
        n0 = m.LoadFromPointer(&input_a, MachineType::Int32());
      } else {
        n0 = m.Int32Constant(inputs[i]);
      }

      // right = Parameter | Load | Constant
      if (j == -2) {
        n1 = p1;
      } else if (j == -1) {
        n1 = m.LoadFromPointer(&input_b, MachineType::Int32());
      } else {
        n1 = m.Int32Constant(inputs[j]);
      }

      gen->gen(&m, n0, n1);

      if (i >= 0) {
        input_a = inputs[i];
        RunRight(&m);
      } else if (j >= 0) {
        input_b = inputs[j];
        RunLeft(&m);
      } else {
        Run(&m);
      }
    }
  }
}


void Int32BinopInputShapeTester::Run(RawMachineAssemblerTester<int32_t>* m) {
  FOR_INT32_INPUTS(pl) {
    FOR_INT32_INPUTS(pr) {
      input_a = *pl;
      input_b = *pr;
      int32_t expect = gen->expected(input_a, input_b);
      CHECK_EQ(expect, m->Call(input_a, input_b));
    }
  }
}


void Int32BinopInputShapeTester::RunLeft(
    RawMachineAssemblerTester<int32_t>* m) {
  FOR_UINT32_INPUTS(i) {
    input_a = *i;
    int32_t expect = gen->expected(input_a, input_b);
    CHECK_EQ(expect, m->Call(input_a, input_b));
  }
}


void Int32BinopInputShapeTester::RunRight(
    RawMachineAssemblerTester<int32_t>* m) {
  FOR_UINT32_INPUTS(i) {
    input_b = *i;
    int32_t expect = gen->expected(input_a, input_b);
    CHECK_EQ(expect, m->Call(input_a, input_b));
  }
}


TEST(ParametersEqual) {
  RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
                                       MachineType::Int32());
  Node* p1 = m.Parameter(1);
  CHECK(p1);
  Node* p0 = m.Parameter(0);
  CHECK(p0);
  CHECK_EQ(p0, m.Parameter(0));
  CHECK_EQ(p1, m.Parameter(1));
}


void RunSmiConstant(int32_t v) {
// TODO(dcarney): on x64 Smis are generated with the SmiConstantRegister
#if !V8_TARGET_ARCH_X64
  if (Smi::IsValid(v)) {
    RawMachineAssemblerTester<Object> m;
    m.Return(m.NumberConstant(v));
    CHECK_EQ(Smi::FromInt(v), m.Call());
  }
#endif
}


void RunNumberConstant(double v) {
  RawMachineAssemblerTester<Object> m;
#if V8_TARGET_ARCH_X64
  // TODO(dcarney): on x64 Smis are generated with the SmiConstantRegister
  Handle<Object> number = m.isolate()->factory()->NewNumber(v);
  if (number->IsSmi()) return;
#endif
  m.Return(m.NumberConstant(v));
  Object result = m.Call();
  m.CheckNumber(v, result);
}


TEST(RunEmpty) {
  RawMachineAssemblerTester<int32_t> m;
  m.Return(m.Int32Constant(0));
  CHECK_EQ(0, m.Call());
}


TEST(RunInt32Constants) {
  FOR_INT32_INPUTS(i) {
    RawMachineAssemblerTester<int32_t> m;
    m.Return(m.Int32Constant(*i));
    CHECK_EQ(*i, m.Call());
  }
}


TEST(RunSmiConstants) {
  for (int32_t i = 1; i < Smi::kMaxValue && i != 0;
       i = base::ShlWithWraparound(i, 1)) {
    RunSmiConstant(i);
    RunSmiConstant(base::MulWithWraparound(3, i));
    RunSmiConstant(base::MulWithWraparound(5, i));
    RunSmiConstant(base::NegateWithWraparound(i));
    RunSmiConstant(i | 1);
    RunSmiConstant(i | 3);
  }
  RunSmiConstant(Smi::kMaxValue);
  RunSmiConstant(Smi::kMaxValue - 1);
  RunSmiConstant(Smi::kMinValue);
  RunSmiConstant(Smi::kMinValue + 1);

  FOR_INT32_INPUTS(i) { RunSmiConstant(*i); }
}


TEST(RunNumberConstants) {
  {
    FOR_FLOAT64_INPUTS(i) { RunNumberConstant(*i); }
  }
  {
    FOR_INT32_INPUTS(i) { RunNumberConstant(*i); }
  }

  for (int32_t i = 1; i < Smi::kMaxValue && i != 0;
       i = base::ShlWithWraparound(i, 1)) {
    RunNumberConstant(i);
    RunNumberConstant(base::NegateWithWraparound(i));
    RunNumberConstant(i | 1);
    RunNumberConstant(i | 3);
  }
  RunNumberConstant(Smi::kMaxValue);
  RunNumberConstant(Smi::kMaxValue - 1);
  RunNumberConstant(Smi::kMinValue);
  RunNumberConstant(Smi::kMinValue + 1);
}


TEST(RunEmptyString) {
  RawMachineAssemblerTester<Object> m;
  m.Return(m.StringConstant("empty"));
  m.CheckString("empty", m.Call());
}


TEST(RunHeapConstant) {
  RawMachineAssemblerTester<Object> m;
  m.Return(m.StringConstant("empty"));
  m.CheckString("empty", m.Call());
}


TEST(RunHeapNumberConstant) {
  RawMachineAssemblerTester<void*> m;
  Handle<HeapObject> number = m.isolate()->factory()->NewHeapNumber(100.5);
  m.Return(m.HeapConstant(number));
  HeapObject result =
      HeapObject::cast(Object(reinterpret_cast<Address>(m.Call())));
  CHECK_EQ(result, *number);
}


TEST(RunParam1) {
  RawMachineAssemblerTester<int32_t> m(MachineType::Int32());
  m.Return(m.Parameter(0));

  FOR_INT32_INPUTS(i) {
    int32_t result = m.Call(*i);
    CHECK_EQ(*i, result);
  }
}


TEST(RunParam2_1) {
  RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
                                       MachineType::Int32());
  Node* p0 = m.Parameter(0);
  Node* p1 = m.Parameter(1);
  m.Return(p0);
  USE(p1);

  FOR_INT32_INPUTS(i) {
    int32_t result = m.Call(*i, -9999);
    CHECK_EQ(*i, result);
  }
}


TEST(RunParam2_2) {
  RawMachineAssemblerTester<int32_t> m(MachineType::Int32(),
                                       MachineType::Int32());
  Node* p0 = m.Parameter(0);
  Node* p1 = m.Parameter(1);
  m.Return(p1);
  USE(p0);

  FOR_INT32_INPUTS(i) {
    int32_t result = m.Call(-7777, *i);
    CHECK_EQ(*i, result);
  }
}


TEST(RunParam3) {
  for (int i = 0; i < 3; i++) {
    RawMachineAssemblerTester<int32_t> m(
        MachineType::Int32(), MachineType::Int32(), MachineType::Int32());
    Node* nodes[] = {m.Parameter(0), m.Parameter(1), m.Parameter(2)};
    m.Return(nodes[i]);

    int p[] = {-99, -77, -88};
    FOR_INT32_INPUTS(j) {
      p[i] = *j;
      int32_t result = m.Call(p[0], p[1], p[2]);
      CHECK_EQ(*j, result);
    }
  }
}


TEST(RunBinopTester) {
  {
    RawMachineAssemblerTester<int32_t> m;
    Int32BinopTester bt(&m);
    bt.AddReturn(bt.param0);

    FOR_INT32_INPUTS(i) { CHECK_EQ(*i, bt.call(*i, 777)); }
  }

  {
    RawMachineAssemblerTester<int32_t> m;
    Int32BinopTester bt(&m);
    bt.AddReturn(bt.param1);

    FOR_INT32_INPUTS(i) { CHECK_EQ(*i, bt.call(666, *i)); }
  }

  {
    RawMachineAssemblerTester<int32_t> m;
    Float64BinopTester bt(&m);
    bt.AddReturn(bt.param0);

    FOR_FLOAT64_INPUTS(i) { CHECK_DOUBLE_EQ(*i, bt.call(*i, 9.0)); }
  }

  {
    RawMachineAssemblerTester<int32_t> m;
    Float64BinopTester bt(&m);
    bt.AddReturn(bt.param1);

    FOR_FLOAT64_INPUTS(i) { CHECK_DOUBLE_EQ(*i, bt.call(-11.25, *i)); }
  }
}


#if V8_TARGET_ARCH_64_BIT
// TODO(ahaas): run int64 tests on all platforms when supported.

namespace {

int64_t Add4(int64_t a, int64_t b, int64_t c, int64_t d) {
  // Operate on uint64_t values to avoid undefined behavior.
  return static_cast<int64_t>(
      static_cast<uint64_t>(a) + static_cast<uint64_t>(b) +
      static_cast<uint64_t>(c) + static_cast<uint64_t>(d));
}

int64_t Add3(int64_t a, int64_t b, int64_t c) { return Add4(a, b, c, 0); }

}  // namespace

TEST(RunBufferedRawMachineAssemblerTesterTester) {
  {
    BufferedRawMachineAssemblerTester<int64_t> m;
    m.Return(m.Int64Constant(0x12500000000));
    CHECK_EQ(0x12500000000, m.Call());
  }
  {
    BufferedRawMachineAssemblerTester<double> m(MachineType::Float64());
    m.Return(m.Parameter(0));
    FOR_FLOAT64_INPUTS(i) { CHECK_DOUBLE_EQ(*i, m.Call(*i)); }
  }
  {
    BufferedRawMachineAssemblerTester<int64_t> m(MachineType::Int64(),
                                                 MachineType::Int64());
    m.Return(m.Int64Add(m.Parameter(0), m.Parameter(1)));
    FOR_INT64_INPUTS(i) {
      FOR_INT64_INPUTS(j) {
        CHECK_EQ(base::AddWithWraparound(*i, *j), m.Call(*i, *j));
        CHECK_EQ(base::AddWithWraparound(*j, *i), m.Call(*j, *i));
      }
    }
  }
  {
    BufferedRawMachineAssemblerTester<int64_t> m(
        MachineType::Int64(), MachineType::Int64(), MachineType::Int64());
    m.Return(
        m.Int64Add(m.Int64Add(m.Parameter(0), m.Parameter(1)), m.Parameter(2)));
    FOR_INT64_INPUTS(i) {
      FOR_INT64_INPUTS(j) {
        CHECK_EQ(Add3(*i, *i, *j), m.Call(*i, *i, *j));
        CHECK_EQ(Add3(*i, *j, *i), m.Call(*i, *j, *i));
        CHECK_EQ(Add3(*j, *i, *i), m.Call(*j, *i, *i));
      }
    }
  }
  {
    BufferedRawMachineAssemblerTester<int64_t> m(
        MachineType::Int64(), MachineType::Int64(), MachineType::Int64(),
        MachineType::Int64());
    m.Return(m.Int64Add(
        m.Int64Add(m.Int64Add(m.Parameter(0), m.Parameter(1)), m.Parameter(2)),
        m.Parameter(3)));
    FOR_INT64_INPUTS(i) {
      FOR_INT64_INPUTS(j) {
        CHECK_EQ(Add4(*i, *i, *i, *j), m.Call(*i, *i, *i, *j));
        CHECK_EQ(Add4(*i, *i, *j, *i), m.Call(*i, *i, *j, *i));
        CHECK_EQ(Add4(*i, *j, *i, *i), m.Call(*i, *j, *i, *i));
        CHECK_EQ(Add4(*j, *i, *i, *i), m.Call(*j, *i, *i, *i));
      }
    }
  }
  {
    BufferedRawMachineAssemblerTester<void> m;
    int64_t result;
    m.Store(MachineTypeForC<int64_t>().representation(),
            m.PointerConstant(&result), m.Int64Constant(0x12500000000),
            kNoWriteBarrier);
    m.Return(m.Int32Constant(0));
    m.Call();
    CHECK_EQ(0x12500000000, result);
  }
  {
    BufferedRawMachineAssemblerTester<void> m(MachineType::Float64());
    double result;
    m.Store(MachineTypeForC<double>().representation(),
            m.PointerConstant(&result), m.Parameter(0), kNoWriteBarrier);
    m.Return(m.Int32Constant(0));
    FOR_FLOAT64_INPUTS(i) {
      m.Call(*i);
      CHECK_DOUBLE_EQ(*i, result);
    }
  }
  {
    BufferedRawMachineAssemblerTester<void> m(MachineType::Int64(),
                                              MachineType::Int64());
    int64_t result;
    m.Store(MachineTypeForC<int64_t>().representation(),
            m.PointerConstant(&result),
            m.Int64Add(m.Parameter(0), m.Parameter(1)), kNoWriteBarrier);
    m.Return(m.Int32Constant(0));
    FOR_INT64_INPUTS(i) {
      FOR_INT64_INPUTS(j) {
        m.Call(*i, *j);
        CHECK_EQ(base::AddWithWraparound(*i, *j), result);

        m.Call(*j, *i);
        CHECK_EQ(base::AddWithWraparound(*j, *i), result);
      }
    }
  }
  {
    BufferedRawMachineAssemblerTester<void> m(
        MachineType::Int64(), MachineType::Int64(), MachineType::Int64());
    int64_t result;
    m.Store(
        MachineTypeForC<int64_t>().representation(), m.PointerConstant(&result),
        m.Int64Add(m.Int64Add(m.Parameter(0), m.Parameter(1)), m.Parameter(2)),
        kNoWriteBarrier);
    m.Return(m.Int32Constant(0));
    FOR_INT64_INPUTS(i) {
      FOR_INT64_INPUTS(j) {
        m.Call(*i, *i, *j);
        CHECK_EQ(Add3(*i, *i, *j), result);

        m.Call(*i, *j, *i);
        CHECK_EQ(Add3(*i, *j, *i), result);

        m.Call(*j, *i, *i);
        CHECK_EQ(Add3(*j, *i, *i), result);
      }
    }
  }
  {
    BufferedRawMachineAssemblerTester<void> m(
        MachineType::Int64(), MachineType::Int64(), MachineType::Int64(),
        MachineType::Int64());
    int64_t result;
    m.Store(MachineTypeForC<int64_t>().representation(),
            m.PointerConstant(&result),
            m.Int64Add(m.Int64Add(m.Int64Add(m.Parameter(0), m.Parameter(1)),
                                  m.Parameter(2)),
                       m.Parameter(3)),
            kNoWriteBarrier);
    m.Return(m.Int32Constant(0));
    FOR_INT64_INPUTS(i) {
      FOR_INT64_INPUTS(j) {
        m.Call(*i, *i, *i, *j);
        CHECK_EQ(Add4(*i, *i, *i, *j), result);

        m.Call(*i, *i, *j, *i);
        CHECK_EQ(Add4(*i, *i, *j, *i), result);

        m.Call(*i, *j, *i, *i);
        CHECK_EQ(Add4(*i, *j, *i, *i), result);

        m.Call(*j, *i, *i, *i);
        CHECK_EQ(Add4(*j, *i, *i, *i), result);
      }
    }
  }
}

#endif
}  // namespace compiler
}  // namespace internal
}  // namespace v8