node/deps/v8/test/unittests/compiler/common-operator-reducer-unittest.cc
Ben Noordhuis 36cd5fb9d2 deps: upgrade v8 to 4.2.77.13
This commit applies some secondary changes in order to make `make test`
pass cleanly:

* disable broken postmortem debugging in common.gypi

* drop obsolete strict mode test in parallel/test-repl

* drop obsolete test parallel/test-v8-features

PR-URL: https://github.com/iojs/io.js/pull/1232
Reviewed-By: Fedor Indutny <fedor@indutny.com>
2015-04-28 14:38:16 -07:00

112 lines
3.3 KiB
C++

// 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/common-operator.h"
#include "src/compiler/common-operator-reducer.h"
#include "src/compiler/machine-type.h"
#include "src/compiler/operator.h"
#include "test/unittests/compiler/graph-unittest.h"
namespace v8 {
namespace internal {
namespace compiler {
class CommonOperatorReducerTest : public GraphTest {
public:
explicit CommonOperatorReducerTest(int num_parameters = 1)
: GraphTest(num_parameters) {}
~CommonOperatorReducerTest() OVERRIDE {}
protected:
Reduction Reduce(Node* node) {
CommonOperatorReducer reducer;
return reducer.Reduce(node);
}
};
namespace {
const BranchHint kBranchHints[] = {BranchHint::kNone, BranchHint::kFalse,
BranchHint::kTrue};
const MachineType kMachineTypes[] = {
kMachFloat32, kMachFloat64, kMachInt8, kMachUint8, kMachInt16,
kMachUint16, kMachInt32, kMachUint32, kMachInt64, kMachUint64,
kMachPtr, kMachAnyTagged, kRepBit, kRepWord8, kRepWord16,
kRepWord32, kRepWord64, kRepFloat32, kRepFloat64, kRepTagged};
const Operator kOp0(0, Operator::kNoProperties, "Op0", 0, 0, 0, 1, 1, 0);
} // namespace
// -----------------------------------------------------------------------------
// EffectPhi
TEST_F(CommonOperatorReducerTest, RedundantEffectPhi) {
const int kMaxInputs = 64;
Node* inputs[kMaxInputs];
Node* const input = graph()->NewNode(&kOp0);
TRACED_FORRANGE(int, input_count, 2, kMaxInputs - 1) {
int const value_input_count = input_count - 1;
for (int i = 0; i < value_input_count; ++i) {
inputs[i] = input;
}
inputs[value_input_count] = graph()->start();
Reduction r = Reduce(graph()->NewNode(
common()->EffectPhi(value_input_count), input_count, inputs));
ASSERT_TRUE(r.Changed());
EXPECT_EQ(input, r.replacement());
}
}
// -----------------------------------------------------------------------------
// Phi
TEST_F(CommonOperatorReducerTest, RedundantPhi) {
const int kMaxInputs = 64;
Node* inputs[kMaxInputs];
Node* const input = graph()->NewNode(&kOp0);
TRACED_FORRANGE(int, input_count, 2, kMaxInputs - 1) {
int const value_input_count = input_count - 1;
TRACED_FOREACH(MachineType, type, kMachineTypes) {
for (int i = 0; i < value_input_count; ++i) {
inputs[i] = input;
}
inputs[value_input_count] = graph()->start();
Reduction r = Reduce(graph()->NewNode(
common()->Phi(type, value_input_count), input_count, inputs));
ASSERT_TRUE(r.Changed());
EXPECT_EQ(input, r.replacement());
}
}
}
// -----------------------------------------------------------------------------
// Select
TEST_F(CommonOperatorReducerTest, RedundantSelect) {
Node* const input = graph()->NewNode(&kOp0);
TRACED_FOREACH(BranchHint, hint, kBranchHints) {
TRACED_FOREACH(MachineType, type, kMachineTypes) {
Reduction r = Reduce(
graph()->NewNode(common()->Select(type, hint), input, input, input));
ASSERT_TRUE(r.Changed());
EXPECT_EQ(input, r.replacement());
}
}
}
} // namespace compiler
} // namespace internal
} // namespace v8