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f6fb5eb197
v8/test/unittests/compiler/common-operator-unittest.cc
bmeurer f6fb5eb197 [turbofan] Connect loops to end via Terminate during graph building. 
This way we don't need to connect (potentially) non-terminating loops
later during control reduction, which saves one forward pass over the
control graph.  Long term we will move the trimming functionality of
the control reducer to the GraphReducer, and get rid of the Finish
method again.

As a bonus, this change also properly rewires Terminate, Throw and
Deoptimize during inlining.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1155683004

Cr-Commit-Position: refs/heads/master@{#28625}
2015-05-26 12:18:07 +00:00

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// 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 <limits>
#include "src/compiler/common-operator.h"
#include "src/compiler/opcodes.h"
#include "src/compiler/operator.h"
#include "src/compiler/operator-properties.h"
#include "test/unittests/test-utils.h"
namespace v8 {
namespace internal {
namespace compiler {
// -----------------------------------------------------------------------------
// Shared operators.
namespace {
struct SharedOperator {
const Operator* (CommonOperatorBuilder::*constructor)();
IrOpcode::Value opcode;
Operator::Properties properties;
int value_input_count;
int effect_input_count;
int control_input_count;
int value_output_count;
int effect_output_count;
int control_output_count;
};
std::ostream& operator<<(std::ostream& os, const SharedOperator& fop) {
return os << IrOpcode::Mnemonic(fop.opcode);
}
const SharedOperator kSharedOperators[] = {
#define SHARED(Name, properties, value_input_count, effect_input_count, \
control_input_count, value_output_count, effect_output_count, \
control_output_count) \
{ \
&CommonOperatorBuilder::Name, IrOpcode::k##Name, properties, \
value_input_count, effect_input_count, control_input_count, \
value_output_count, effect_output_count, control_output_count \
}
SHARED(Dead, Operator::kFoldable, 0, 0, 0, 0, 0, 1),
SHARED(IfTrue, Operator::kKontrol, 0, 0, 1, 0, 0, 1),
SHARED(IfFalse, Operator::kKontrol, 0, 0, 1, 0, 0, 1),
SHARED(IfSuccess, Operator::kKontrol, 0, 0, 1, 0, 0, 1),
SHARED(IfException, Operator::kKontrol, 0, 0, 1, 1, 0, 1),
SHARED(Throw, Operator::kKontrol, 1, 1, 1, 0, 0, 1),
SHARED(Return, Operator::kNoThrow, 1, 1, 1, 0, 0, 1),
SHARED(Terminate, Operator::kKontrol, 0, 1, 1, 0, 0, 1)
#undef SHARED
};
class CommonSharedOperatorTest
: public TestWithZone,
public ::testing::WithParamInterface<SharedOperator> {};
} // namespace
TEST_P(CommonSharedOperatorTest, InstancesAreGloballyShared) {
const SharedOperator& sop = GetParam();
CommonOperatorBuilder common1(zone());
CommonOperatorBuilder common2(zone());
EXPECT_EQ((common1.*sop.constructor)(), (common2.*sop.constructor)());
}
TEST_P(CommonSharedOperatorTest, NumberOfInputsAndOutputs) {
CommonOperatorBuilder common(zone());
const SharedOperator& sop = GetParam();
const Operator* op = (common.*sop.constructor)();
EXPECT_EQ(sop.value_input_count, op->ValueInputCount());
EXPECT_EQ(sop.effect_input_count, op->EffectInputCount());
EXPECT_EQ(sop.control_input_count, op->ControlInputCount());
EXPECT_EQ(
sop.value_input_count + sop.effect_input_count + sop.control_input_count,
OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(sop.value_output_count, op->ValueOutputCount());
EXPECT_EQ(sop.effect_output_count, op->EffectOutputCount());
EXPECT_EQ(sop.control_output_count, op->ControlOutputCount());
}
TEST_P(CommonSharedOperatorTest, OpcodeIsCorrect) {
CommonOperatorBuilder common(zone());
const SharedOperator& sop = GetParam();
const Operator* op = (common.*sop.constructor)();
EXPECT_EQ(sop.opcode, op->opcode());
}
TEST_P(CommonSharedOperatorTest, Properties) {
CommonOperatorBuilder common(zone());
const SharedOperator& sop = GetParam();
const Operator* op = (common.*sop.constructor)();
EXPECT_EQ(sop.properties, op->properties());
}
INSTANTIATE_TEST_CASE_P(CommonOperatorTest, CommonSharedOperatorTest,
::testing::ValuesIn(kSharedOperators));
// -----------------------------------------------------------------------------
// Other operators.
namespace {
class CommonOperatorTest : public TestWithZone {
public:
CommonOperatorTest() : common_(zone()) {}
~CommonOperatorTest() override {}
CommonOperatorBuilder* common() { return &common_; }
private:
CommonOperatorBuilder common_;
};
const int kArguments[] = {1, 5, 6, 42, 100, 10000, 65000};
const size_t kCases[] = {3, 4, 100, 255, 1024, 65000};
const float kFloatValues[] = {-std::numeric_limits<float>::infinity(),
std::numeric_limits<float>::min(),
-1.0f,
-0.0f,
0.0f,
1.0f,
std::numeric_limits<float>::max(),
std::numeric_limits<float>::infinity(),
std::numeric_limits<float>::quiet_NaN(),
std::numeric_limits<float>::signaling_NaN()};
const double kDoubleValues[] = {-std::numeric_limits<double>::infinity(),
std::numeric_limits<double>::min(),
-1.0,
-0.0,
0.0,
1.0,
std::numeric_limits<double>::max(),
std::numeric_limits<double>::infinity(),
std::numeric_limits<double>::quiet_NaN(),
std::numeric_limits<double>::signaling_NaN()};
const size_t kInputCounts[] = {3, 4, 100, 255, 1024, 65000};
const int32_t kInt32Values[] = {
std::numeric_limits<int32_t>::min(), -1914954528, -1698749618, -1578693386,
-1577976073, -1573998034, -1529085059, -1499540537, -1299205097,
-1090814845, -938186388, -806828902, -750927650, -520676892, -513661538,
-453036354, -433622833, -282638793, -28375, -27788, -22770, -18806, -14173,
-11956, -11200, -10212, -8160, -3751, -2758, -1522, -121, -120, -118, -117,
-106, -84, -80, -74, -59, -52, -48, -39, -35, -17, -11, -10, -9, -7, -5, 0,
9, 12, 17, 23, 29, 31, 33, 35, 40, 47, 55, 56, 62, 64, 67, 68, 69, 74, 79,
84, 89, 90, 97, 104, 118, 124, 126, 127, 7278, 17787, 24136, 24202, 25570,
26680, 30242, 32399, 420886487, 642166225, 821912648, 822577803, 851385718,
1212241078, 1411419304, 1589626102, 1596437184, 1876245816, 1954730266,
2008792749, 2045320228, std::numeric_limits<int32_t>::max()};
const BranchHint kHints[] = {BranchHint::kNone, BranchHint::kTrue,
BranchHint::kFalse};
} // namespace
TEST_F(CommonOperatorTest, End) {
TRACED_FOREACH(size_t, input_count, kInputCounts) {
const Operator* const op = common()->End(input_count);
EXPECT_EQ(IrOpcode::kEnd, op->opcode());
EXPECT_EQ(Operator::kKontrol, op->properties());
EXPECT_EQ(0, op->ValueInputCount());
EXPECT_EQ(0, op->EffectInputCount());
EXPECT_EQ(input_count, op->ControlInputCount());
EXPECT_EQ(input_count, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ValueOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(0, op->ControlOutputCount());
}
}
TEST_F(CommonOperatorTest, Branch) {
TRACED_FOREACH(BranchHint, hint, kHints) {
const Operator* const op = common()->Branch(hint);
EXPECT_EQ(IrOpcode::kBranch, op->opcode());
EXPECT_EQ(Operator::kKontrol, op->properties());
EXPECT_EQ(hint, BranchHintOf(op));
EXPECT_EQ(1, op->ValueInputCount());
EXPECT_EQ(0, op->EffectInputCount());
EXPECT_EQ(1, op->ControlInputCount());
EXPECT_EQ(2, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ValueOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(2, op->ControlOutputCount());
}
}
TEST_F(CommonOperatorTest, Switch) {
TRACED_FOREACH(size_t, cases, kCases) {
const Operator* const op = common()->Switch(cases);
EXPECT_EQ(IrOpcode::kSwitch, op->opcode());
EXPECT_EQ(Operator::kKontrol, op->properties());
EXPECT_EQ(1, op->ValueInputCount());
EXPECT_EQ(0, op->EffectInputCount());
EXPECT_EQ(1, op->ControlInputCount());
EXPECT_EQ(2, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ValueOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(static_cast<int>(cases), op->ControlOutputCount());
}
}
TEST_F(CommonOperatorTest, IfValue) {
TRACED_FOREACH(int32_t, value, kInt32Values) {
const Operator* const op = common()->IfValue(value);
EXPECT_EQ(IrOpcode::kIfValue, op->opcode());
EXPECT_EQ(Operator::kKontrol, op->properties());
EXPECT_EQ(value, OpParameter<int32_t>(op));
EXPECT_EQ(0, op->ValueInputCount());
EXPECT_EQ(0, op->EffectInputCount());
EXPECT_EQ(1, op->ControlInputCount());
EXPECT_EQ(1, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ValueOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(1, op->ControlOutputCount());
}
}
TEST_F(CommonOperatorTest, Select) {
static const MachineType kTypes[] = {
kMachInt8, kMachUint8, kMachInt16, kMachUint16,
kMachInt32, kMachUint32, kMachInt64, kMachUint64,
kMachFloat32, kMachFloat64, kMachAnyTagged};
TRACED_FOREACH(MachineType, type, kTypes) {
TRACED_FOREACH(BranchHint, hint, kHints) {
const Operator* const op = common()->Select(type, hint);
EXPECT_EQ(IrOpcode::kSelect, op->opcode());
EXPECT_EQ(Operator::kPure, op->properties());
EXPECT_EQ(type, SelectParametersOf(op).type());
EXPECT_EQ(hint, SelectParametersOf(op).hint());
EXPECT_EQ(3, op->ValueInputCount());
EXPECT_EQ(0, op->EffectInputCount());
EXPECT_EQ(0, op->ControlInputCount());
EXPECT_EQ(3, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(1, op->ValueOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(0, op->ControlOutputCount());
}
}
}
TEST_F(CommonOperatorTest, Float32Constant) {
TRACED_FOREACH(float, value, kFloatValues) {
const Operator* op = common()->Float32Constant(value);
EXPECT_PRED2(base::bit_equal_to<float>(), value, OpParameter<float>(op));
EXPECT_EQ(0, op->ValueInputCount());
EXPECT_EQ(0, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ControlOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(1, op->ValueOutputCount());
}
TRACED_FOREACH(float, v1, kFloatValues) {
TRACED_FOREACH(float, v2, kFloatValues) {
const Operator* op1 = common()->Float32Constant(v1);
const Operator* op2 = common()->Float32Constant(v2);
EXPECT_EQ(bit_cast<uint32_t>(v1) == bit_cast<uint32_t>(v2),
op1->Equals(op2));
}
}
}
TEST_F(CommonOperatorTest, Float64Constant) {
TRACED_FOREACH(double, value, kFloatValues) {
const Operator* op = common()->Float64Constant(value);
EXPECT_PRED2(base::bit_equal_to<double>(), value, OpParameter<double>(op));
EXPECT_EQ(0, op->ValueInputCount());
EXPECT_EQ(0, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ControlOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(1, op->ValueOutputCount());
}
TRACED_FOREACH(double, v1, kFloatValues) {
TRACED_FOREACH(double, v2, kFloatValues) {
const Operator* op1 = common()->Float64Constant(v1);
const Operator* op2 = common()->Float64Constant(v2);
EXPECT_EQ(bit_cast<uint64_t>(v1) == bit_cast<uint64_t>(v2),
op1->Equals(op2));
}
}
}
TEST_F(CommonOperatorTest, NumberConstant) {
TRACED_FOREACH(double, value, kFloatValues) {
const Operator* op = common()->NumberConstant(value);
EXPECT_PRED2(base::bit_equal_to<double>(), value, OpParameter<double>(op));
EXPECT_EQ(0, op->ValueInputCount());
EXPECT_EQ(0, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ControlOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(1, op->ValueOutputCount());
}
TRACED_FOREACH(double, v1, kFloatValues) {
TRACED_FOREACH(double, v2, kFloatValues) {
const Operator* op1 = common()->NumberConstant(v1);
const Operator* op2 = common()->NumberConstant(v2);
EXPECT_EQ(bit_cast<uint64_t>(v1) == bit_cast<uint64_t>(v2),
op1->Equals(op2));
}
}
}
TEST_F(CommonOperatorTest, ValueEffect) {
TRACED_FOREACH(int, arguments, kArguments) {
const Operator* op = common()->ValueEffect(arguments);
EXPECT_EQ(arguments, op->ValueInputCount());
EXPECT_EQ(arguments, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ControlOutputCount());
EXPECT_EQ(1, op->EffectOutputCount());
EXPECT_EQ(0, op->ValueOutputCount());
}
}
TEST_F(CommonOperatorTest, Finish) {
TRACED_FOREACH(int, arguments, kArguments) {
const Operator* op = common()->Finish(arguments);
EXPECT_EQ(1, op->ValueInputCount());
EXPECT_EQ(arguments, op->EffectInputCount());
EXPECT_EQ(arguments + 1, OperatorProperties::GetTotalInputCount(op));
EXPECT_EQ(0, op->ControlOutputCount());
EXPECT_EQ(0, op->EffectOutputCount());
EXPECT_EQ(1, op->ValueOutputCount());
}
}
} // namespace compiler
} // namespace internal
} // namespace v8
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