// 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 "src/compiler/access-builder.h"
#include "src/compiler/js-graph.h"
#include "src/compiler/node-properties.h"
#include "src/compiler/simplified-operator.h"
#include "src/compiler/simplified-operator-reducer.h"
#include "src/conversions-inl.h"
#include "src/types.h"
#include "test/unittests/compiler/graph-unittest.h"
#include "test/unittests/compiler/node-test-utils.h"
#include "testing/gmock-support.h"
using testing::BitEq;
namespace v8 {
namespace internal {
namespace compiler {
class SimplifiedOperatorReducerTest : public TypedGraphTest {
public:
explicit SimplifiedOperatorReducerTest(int num_parameters = 1)
: TypedGraphTest(num_parameters), simplified_(zone()) {}
~SimplifiedOperatorReducerTest() override {}
protected:
Reduction Reduce(Node* node) {
MachineOperatorBuilder machine(zone());
JSOperatorBuilder javascript(zone());
JSGraph jsgraph(isolate(), graph(), common(), &javascript, simplified(),
&machine);
SimplifiedOperatorReducer reducer(&jsgraph);
return reducer.Reduce(node);
}
SimplifiedOperatorBuilder* simplified() { return &simplified_; }
private:
SimplifiedOperatorBuilder simplified_;
};
template <typename T>
class SimplifiedOperatorReducerTestWithParam
: public SimplifiedOperatorReducerTest,
public ::testing::WithParamInterface<T> {
public:
explicit SimplifiedOperatorReducerTestWithParam(int num_parameters = 1)
: SimplifiedOperatorReducerTest(num_parameters) {}
~SimplifiedOperatorReducerTestWithParam() override {}
};
namespace {
const double kFloat64Values[] = {
-V8_INFINITY, -6.52696e+290, -1.05768e+290, -5.34203e+268, -1.01997e+268,
-8.22758e+266, -1.58402e+261, -5.15246e+241, -5.92107e+226, -1.21477e+226,
-1.67913e+188, -1.6257e+184, -2.60043e+170, -2.52941e+168, -3.06033e+116,
-4.56201e+52, -3.56788e+50, -9.9066e+38, -3.07261e+31, -2.1271e+09,
-1.91489e+09, -1.73053e+09, -9.30675e+08, -26030, -20453, -15790, -11699,
-111, -97, -78, -63, -58, -1.53858e-06, -2.98914e-12, -1.14741e-39,
-8.20347e-57, -1.48932e-59, -3.17692e-66, -8.93103e-81, -3.91337e-83,
-6.0489e-92, -8.83291e-113, -4.28266e-117, -1.92058e-178, -2.0567e-192,
-1.68167e-194, -1.51841e-214, -3.98738e-234, -7.31851e-242, -2.21875e-253,
-1.11612e-293, -0.0, 0.0, 2.22507e-308, 1.06526e-307, 4.16643e-227,
6.76624e-223, 2.0432e-197, 3.16254e-184, 1.37315e-173, 2.88603e-172,
1.54155e-99, 4.42923e-81, 1.40539e-73, 5.4462e-73, 1.24064e-58, 3.11167e-58,
2.75826e-39, 0.143815, 58, 67, 601, 7941, 11644, 13697, 25680, 29882,
1.32165e+08, 1.62439e+08, 4.16837e+08, 9.59097e+08, 1.32491e+09, 1.8728e+09,
1.0672e+17, 2.69606e+46, 1.98285e+79, 1.0098e+82, 7.93064e+88, 3.67444e+121,
9.36506e+123, 7.27954e+162, 3.05316e+168, 1.16171e+175, 1.64771e+189,
1.1622e+202, 2.00748e+239, 2.51778e+244, 3.90282e+306, 1.79769e+308,
V8_INFINITY};
const int32_t kInt32Values[] = {
-2147483647 - 1, -2104508227, -2103151830, -1435284490, -1378926425,
-1318814539, -1289388009, -1287537572, -1279026536, -1241605942,
-1226046939, -941837148, -779818051, -413830641, -245798087, -184657557,
-127145950, -105483328, -32325, -26653, -23858, -23834, -22363, -19858,
-19044, -18744, -15528, -5309, -3372, -2093, -104, -98, -97, -93, -84, -80,
-78, -76, -72, -58, -57, -56, -55, -45, -40, -34, -32, -25, -24, -5, -2, 0,
3, 10, 24, 34, 42, 46, 47, 48, 52, 56, 64, 65, 71, 76, 79, 81, 82, 97, 102,
103, 104, 106, 107, 109, 116, 122, 3653, 4485, 12405, 16504, 26262, 28704,
29755, 30554, 16476817, 605431957, 832401070, 873617242, 914205764,
1062628108, 1087581664, 1488498068, 1534668023, 1661587028, 1696896187,
1866841746, 2032089723, 2147483647};
const uint32_t kUint32Values[] = {
0x0, 0x5, 0x8, 0xc, 0xd, 0x26,
0x28, 0x29, 0x30, 0x34, 0x3e, 0x42,
0x50, 0x5b, 0x63, 0x71, 0x77, 0x7c,
0x83, 0x88, 0x96, 0x9c, 0xa3, 0xfa,
0x7a7, 0x165d, 0x234d, 0x3acb, 0x43a5, 0x4573,
0x5b4f, 0x5f14, 0x6996, 0x6c6e, 0x7289, 0x7b9a,
0x7bc9, 0x86bb, 0xa839, 0xaa41, 0xb03b, 0xc942,
0xce68, 0xcf4c, 0xd3ad, 0xdea3, 0xe90c, 0xed86,
0xfba5, 0x172dcc6, 0x114d8fc1, 0x182d6c9d, 0x1b1e3fad, 0x1db033bf,
0x1e1de755, 0x1f625c80, 0x28f6cf00, 0x2acb6a94, 0x2c20240e, 0x2f0fe54e,
0x31863a7c, 0x33325474, 0x3532fae3, 0x3bab82ea, 0x4c4b83a2, 0x4cd93d1e,
0x4f7331d4, 0x5491b09b, 0x57cc6ff9, 0x60d3b4dc, 0x653f5904, 0x690ae256,
0x69fe3276, 0x6bebf0ba, 0x6e2c69a3, 0x73b84ff7, 0x7b3a1924, 0x7ed032d9,
0x84dd734b, 0x8552ea53, 0x8680754f, 0x8e9660eb, 0x94fe2b9c, 0x972d30cf,
0x9b98c482, 0xb158667e, 0xb432932c, 0xb5b70989, 0xb669971a, 0xb7c359d1,
0xbeb15c0d, 0xc171c53d, 0xc743dd38, 0xc8e2af50, 0xc98e2df0, 0xd9d1cdf9,
0xdcc91049, 0xe46f396d, 0xee991950, 0xef64e521, 0xf7aeefc9, 0xffffffff};
const double kNaNs[] = {-std::numeric_limits<double>::quiet_NaN(),
std::numeric_limits<double>::quiet_NaN(),
bit_cast<double>(V8_UINT64_C(0x7FFFFFFFFFFFFFFF)),
bit_cast<double>(V8_UINT64_C(0xFFFFFFFFFFFFFFFF))};
} // namespace
// -----------------------------------------------------------------------------
// BooleanNot
TEST_F(SimplifiedOperatorReducerTest, BooleanNotWithBooleanNot) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(
graph()->NewNode(simplified()->BooleanNot(),
graph()->NewNode(simplified()->BooleanNot(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_EQ(param0, reduction.replacement());
}
TEST_F(SimplifiedOperatorReducerTest, BooleanNotWithFalseConstant) {
Reduction reduction0 =
Reduce(graph()->NewNode(simplified()->BooleanNot(), FalseConstant()));
ASSERT_TRUE(reduction0.Changed());
EXPECT_THAT(reduction0.replacement(), IsTrueConstant());
}
TEST_F(SimplifiedOperatorReducerTest, BooleanNotWithTrueConstant) {
Reduction reduction1 =
Reduce(graph()->NewNode(simplified()->BooleanNot(), TrueConstant()));
ASSERT_TRUE(reduction1.Changed());
EXPECT_THAT(reduction1.replacement(), IsFalseConstant());
}
// -----------------------------------------------------------------------------
// ChangeBoolToBit
TEST_F(SimplifiedOperatorReducerTest, ChangeBitToBoolWithChangeBoolToBit) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeBitToBool(),
graph()->NewNode(simplified()->ChangeBoolToBit(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_EQ(param0, reduction.replacement());
}
TEST_F(SimplifiedOperatorReducerTest, ChangeBitToBoolWithZeroConstant) {
Reduction reduction = Reduce(
graph()->NewNode(simplified()->ChangeBitToBool(), Int32Constant(0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsFalseConstant());
}
TEST_F(SimplifiedOperatorReducerTest, ChangeBitToBoolWithOneConstant) {
Reduction reduction = Reduce(
graph()->NewNode(simplified()->ChangeBitToBool(), Int32Constant(1)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsTrueConstant());
}
// -----------------------------------------------------------------------------
// ChangeBoolToBit
TEST_F(SimplifiedOperatorReducerTest, ChangeBoolToBitWithFalseConstant) {
Reduction reduction = Reduce(
graph()->NewNode(simplified()->ChangeBoolToBit(), FalseConstant()));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsInt32Constant(0));
}
TEST_F(SimplifiedOperatorReducerTest, ChangeBoolToBitWithTrueConstant) {
Reduction reduction =
Reduce(graph()->NewNode(simplified()->ChangeBoolToBit(), TrueConstant()));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsInt32Constant(1));
}
TEST_F(SimplifiedOperatorReducerTest, ChangeBoolToBitWithChangeBitToBool) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeBoolToBit(),
graph()->NewNode(simplified()->ChangeBitToBool(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_EQ(param0, reduction.replacement());
}
// -----------------------------------------------------------------------------
// ChangeFloat64ToTagged
TEST_F(SimplifiedOperatorReducerTest, ChangeFloat64ToTaggedWithConstant) {
TRACED_FOREACH(double, n, kFloat64Values) {
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeFloat64ToTagged(), Float64Constant(n)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsNumberConstant(BitEq(n)));
}
}
// -----------------------------------------------------------------------------
// ChangeInt32ToTagged
TEST_F(SimplifiedOperatorReducerTest, ChangeInt32ToTaggedWithConstant) {
TRACED_FOREACH(int32_t, n, kInt32Values) {
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeInt32ToTagged(), Int32Constant(n)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsNumberConstant(BitEq(FastI2D(n))));
}
}
// -----------------------------------------------------------------------------
// ChangeTaggedToFloat64
TEST_F(SimplifiedOperatorReducerTest,
ChangeTaggedToFloat64WithChangeFloat64ToTagged) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToFloat64(),
graph()->NewNode(simplified()->ChangeFloat64ToTagged(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_EQ(param0, reduction.replacement());
}
TEST_F(SimplifiedOperatorReducerTest,
ChangeTaggedToFloat64WithChangeInt32ToTagged) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToFloat64(),
graph()->NewNode(simplified()->ChangeInt32ToTagged(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsChangeInt32ToFloat64(param0));
}
TEST_F(SimplifiedOperatorReducerTest,
ChangeTaggedToFloat64WithChangeUint32ToTagged) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToFloat64(),
graph()->NewNode(simplified()->ChangeUint32ToTagged(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsChangeUint32ToFloat64(param0));
}
TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToFloat64WithConstant) {
TRACED_FOREACH(double, n, kFloat64Values) {
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToFloat64(), NumberConstant(n)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsFloat64Constant(BitEq(n)));
}
}
TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToFloat64WithNaNConstant) {
TRACED_FOREACH(double, nan, kNaNs) {
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToFloat64(), NumberConstant(nan)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsFloat64Constant(BitEq(nan)));
}
}
// -----------------------------------------------------------------------------
// ChangeTaggedToInt32
TEST_F(SimplifiedOperatorReducerTest,
ChangeTaggedToInt32WithChangeFloat64ToTagged) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToInt32(),
graph()->NewNode(simplified()->ChangeFloat64ToTagged(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsChangeFloat64ToInt32(param0));
}
TEST_F(SimplifiedOperatorReducerTest,
ChangeTaggedToInt32WithChangeInt32ToTagged) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToInt32(),
graph()->NewNode(simplified()->ChangeInt32ToTagged(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_EQ(param0, reduction.replacement());
}
TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToInt32WithConstant) {
TRACED_FOREACH(double, n, kFloat64Values) {
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToInt32(), NumberConstant(n)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsInt32Constant(DoubleToInt32(n)));
}
}
TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToInt32WithNaNConstant) {
TRACED_FOREACH(double, nan, kNaNs) {
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToInt32(), NumberConstant(nan)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsInt32Constant(0));
}
}
// -----------------------------------------------------------------------------
// ChangeTaggedToUint32
TEST_F(SimplifiedOperatorReducerTest,
ChangeTaggedToUint32WithChangeFloat64ToTagged) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToUint32(),
graph()->NewNode(simplified()->ChangeFloat64ToTagged(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsChangeFloat64ToUint32(param0));
}
TEST_F(SimplifiedOperatorReducerTest,
ChangeTaggedToUint32WithChangeUint32ToTagged) {
Node* param0 = Parameter(0);
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToUint32(),
graph()->NewNode(simplified()->ChangeUint32ToTagged(), param0)));
ASSERT_TRUE(reduction.Changed());
EXPECT_EQ(param0, reduction.replacement());
}
TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToUint32WithConstant) {
TRACED_FOREACH(double, n, kFloat64Values) {
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToUint32(), NumberConstant(n)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(),
IsInt32Constant(bit_cast<int32_t>(DoubleToUint32(n))));
}
}
TEST_F(SimplifiedOperatorReducerTest, ChangeTaggedToUint32WithNaNConstant) {
TRACED_FOREACH(double, nan, kNaNs) {
Reduction reduction = Reduce(graph()->NewNode(
simplified()->ChangeTaggedToUint32(), NumberConstant(nan)));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsInt32Constant(0));
}
}
// -----------------------------------------------------------------------------
// ChangeUint32ToTagged
TEST_F(SimplifiedOperatorReducerTest, ChangeUint32ToTagged) {
TRACED_FOREACH(uint32_t, n, kUint32Values) {
Reduction reduction =
Reduce(graph()->NewNode(simplified()->ChangeUint32ToTagged(),
Int32Constant(bit_cast<int32_t>(n))));
ASSERT_TRUE(reduction.Changed());
EXPECT_THAT(reduction.replacement(), IsNumberConstant(BitEq(FastUI2D(n))));
}
}
} // namespace compiler
} // namespace internal
} // namespace v8