9e6181d5c3
R=svenpanne@chromium.org Committed: https://crrev.com/5bbe693e4817011b6a496c638c9f09026fd3dac9 Cr-Commit-Position: refs/heads/master@{#26760} Review URL: https://codereview.chromium.org/944803002 Cr-Commit-Position: refs/heads/master@{#26767}
750 lines
21 KiB
C++
750 lines
21 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "test/cctest/cctest.h"
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#include "src/base/utils/random-number-generator.h"
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#include "src/codegen.h"
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#include "src/compiler/js-graph.h"
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#include "src/compiler/machine-operator-reducer.h"
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#include "src/compiler/operator-properties.h"
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#include "src/compiler/typer.h"
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#include "test/cctest/compiler/value-helper.h"
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using namespace v8::internal;
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using namespace v8::internal::compiler;
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template <typename T>
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const Operator* NewConstantOperator(CommonOperatorBuilder* common,
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volatile T value);
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template <>
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const Operator* NewConstantOperator<int32_t>(CommonOperatorBuilder* common,
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volatile int32_t value) {
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return common->Int32Constant(value);
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}
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template <>
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const Operator* NewConstantOperator<double>(CommonOperatorBuilder* common,
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volatile double value) {
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return common->Float64Constant(value);
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}
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template <typename T>
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T ValueOfOperator(const Operator* op);
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template <>
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int32_t ValueOfOperator<int32_t>(const Operator* op) {
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CHECK_EQ(IrOpcode::kInt32Constant, op->opcode());
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return OpParameter<int32_t>(op);
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}
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template <>
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double ValueOfOperator<double>(const Operator* op) {
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CHECK_EQ(IrOpcode::kFloat64Constant, op->opcode());
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return OpParameter<double>(op);
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}
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class ReducerTester : public HandleAndZoneScope {
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public:
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explicit ReducerTester(
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int num_parameters = 0,
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MachineOperatorBuilder::Flags flags = MachineOperatorBuilder::kNoFlags)
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: isolate(main_isolate()),
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binop(NULL),
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unop(NULL),
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machine(main_zone(), kMachPtr, flags),
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common(main_zone()),
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graph(main_zone()),
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javascript(main_zone()),
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typer(isolate, &graph, MaybeHandle<Context>()),
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jsgraph(isolate, &graph, &common, &javascript, &machine),
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maxuint32(Constant<int32_t>(kMaxUInt32)) {
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Node* s = graph.NewNode(common.Start(num_parameters));
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graph.SetStart(s);
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}
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Isolate* isolate;
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const Operator* binop;
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const Operator* unop;
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MachineOperatorBuilder machine;
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CommonOperatorBuilder common;
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Graph graph;
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JSOperatorBuilder javascript;
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Typer typer;
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JSGraph jsgraph;
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Node* maxuint32;
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template <typename T>
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Node* Constant(volatile T value) {
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return graph.NewNode(NewConstantOperator<T>(&common, value));
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}
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template <typename T>
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const T ValueOf(const Operator* op) {
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return ValueOfOperator<T>(op);
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}
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// Check that the reduction of this binop applied to constants {a} and {b}
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// yields the {expect} value.
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template <typename T>
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void CheckFoldBinop(volatile T expect, volatile T a, volatile T b) {
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CheckFoldBinop<T>(expect, Constant<T>(a), Constant<T>(b));
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}
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// Check that the reduction of this binop applied to {a} and {b} yields
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// the {expect} value.
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template <typename T>
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void CheckFoldBinop(volatile T expect, Node* a, Node* b) {
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CHECK(binop);
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Node* n = CreateBinopNode(a, b);
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MachineOperatorReducer reducer(&jsgraph);
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Reduction reduction = reducer.Reduce(n);
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CHECK(reduction.Changed());
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CHECK_NE(n, reduction.replacement());
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CHECK_EQ(expect, ValueOf<T>(reduction.replacement()->op()));
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}
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// Check that the reduction of this binop applied to {a} and {b} yields
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// the {expect} node.
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void CheckBinop(Node* expect, Node* a, Node* b) {
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CHECK(binop);
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Node* n = CreateBinopNode(a, b);
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MachineOperatorReducer reducer(&jsgraph);
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Reduction reduction = reducer.Reduce(n);
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CHECK(reduction.Changed());
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CHECK_EQ(expect, reduction.replacement());
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}
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// Check that the reduction of this binop applied to {left} and {right} yields
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// this binop applied to {left_expect} and {right_expect}.
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void CheckFoldBinop(Node* left_expect, Node* right_expect, Node* left,
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Node* right) {
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CHECK(binop);
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Node* n = CreateBinopNode(left, right);
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MachineOperatorReducer reducer(&jsgraph);
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Reduction reduction = reducer.Reduce(n);
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CHECK(reduction.Changed());
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CHECK_EQ(binop, reduction.replacement()->op());
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CHECK_EQ(left_expect, reduction.replacement()->InputAt(0));
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CHECK_EQ(right_expect, reduction.replacement()->InputAt(1));
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}
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// Check that the reduction of this binop applied to {left} and {right} yields
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// the {op_expect} applied to {left_expect} and {right_expect}.
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template <typename T>
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void CheckFoldBinop(volatile T left_expect, const Operator* op_expect,
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Node* right_expect, Node* left, Node* right) {
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CHECK(binop);
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Node* n = CreateBinopNode(left, right);
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MachineOperatorReducer reducer(&jsgraph);
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Reduction r = reducer.Reduce(n);
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CHECK(r.Changed());
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CHECK_EQ(op_expect->opcode(), r.replacement()->op()->opcode());
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CHECK_EQ(left_expect, ValueOf<T>(r.replacement()->InputAt(0)->op()));
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CHECK_EQ(right_expect, r.replacement()->InputAt(1));
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}
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// Check that the reduction of this binop applied to {left} and {right} yields
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// the {op_expect} applied to {left_expect} and {right_expect}.
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template <typename T>
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void CheckFoldBinop(Node* left_expect, const Operator* op_expect,
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volatile T right_expect, Node* left, Node* right) {
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CHECK(binop);
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Node* n = CreateBinopNode(left, right);
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MachineOperatorReducer reducer(&jsgraph);
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Reduction r = reducer.Reduce(n);
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CHECK(r.Changed());
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CHECK_EQ(op_expect->opcode(), r.replacement()->op()->opcode());
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CHECK_EQ(OperatorProperties::GetTotalInputCount(op_expect),
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r.replacement()->InputCount());
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CHECK_EQ(left_expect, r.replacement()->InputAt(0));
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CHECK_EQ(right_expect, ValueOf<T>(r.replacement()->InputAt(1)->op()));
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}
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// Check that if the given constant appears on the left, the reducer will
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// swap it to be on the right.
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template <typename T>
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void CheckPutConstantOnRight(volatile T constant) {
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// TODO(titzer): CHECK(binop->HasProperty(Operator::kCommutative));
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Node* p = Parameter();
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Node* k = Constant<T>(constant);
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{
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Node* n = CreateBinopNode(k, p);
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MachineOperatorReducer reducer(&jsgraph);
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Reduction reduction = reducer.Reduce(n);
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CHECK(!reduction.Changed() || reduction.replacement() == n);
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CHECK_EQ(p, n->InputAt(0));
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CHECK_EQ(k, n->InputAt(1));
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}
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{
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Node* n = CreateBinopNode(p, k);
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MachineOperatorReducer reducer(&jsgraph);
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Reduction reduction = reducer.Reduce(n);
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CHECK(!reduction.Changed());
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CHECK_EQ(p, n->InputAt(0));
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CHECK_EQ(k, n->InputAt(1));
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}
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}
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// Check that if the given constant appears on the left, the reducer will
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// *NOT* swap it to be on the right.
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template <typename T>
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void CheckDontPutConstantOnRight(volatile T constant) {
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CHECK(!binop->HasProperty(Operator::kCommutative));
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Node* p = Parameter();
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Node* k = Constant<T>(constant);
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Node* n = CreateBinopNode(k, p);
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MachineOperatorReducer reducer(&jsgraph);
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Reduction reduction = reducer.Reduce(n);
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CHECK(!reduction.Changed());
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CHECK_EQ(k, n->InputAt(0));
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CHECK_EQ(p, n->InputAt(1));
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}
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Node* Parameter(int32_t index = 0) {
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return graph.NewNode(common.Parameter(index), graph.start());
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}
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private:
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Node* CreateBinopNode(Node* left, Node* right) {
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if (binop->ControlInputCount() > 0) {
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return graph.NewNode(binop, left, right, graph.start());
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} else {
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return graph.NewNode(binop, left, right);
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}
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}
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};
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TEST(ReduceWord32And) {
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ReducerTester R;
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R.binop = R.machine.Word32And();
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FOR_INT32_INPUTS(pl) {
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FOR_INT32_INPUTS(pr) {
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int32_t x = *pl, y = *pr;
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R.CheckFoldBinop<int32_t>(x & y, x, y);
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}
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}
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R.CheckPutConstantOnRight(33);
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R.CheckPutConstantOnRight(44000);
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Node* x = R.Parameter();
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Node* zero = R.Constant<int32_t>(0);
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Node* minus_1 = R.Constant<int32_t>(-1);
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R.CheckBinop(zero, x, zero); // x & 0 => 0
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R.CheckBinop(zero, zero, x); // 0 & x => 0
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R.CheckBinop(x, x, minus_1); // x & -1 => 0
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R.CheckBinop(x, minus_1, x); // -1 & x => 0
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R.CheckBinop(x, x, x); // x & x => x
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}
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TEST(ReduceWord32Or) {
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ReducerTester R;
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R.binop = R.machine.Word32Or();
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FOR_INT32_INPUTS(pl) {
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FOR_INT32_INPUTS(pr) {
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int32_t x = *pl, y = *pr;
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R.CheckFoldBinop<int32_t>(x | y, x, y);
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}
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}
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R.CheckPutConstantOnRight(36);
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R.CheckPutConstantOnRight(44001);
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Node* x = R.Parameter();
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Node* zero = R.Constant<int32_t>(0);
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Node* minus_1 = R.Constant<int32_t>(-1);
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R.CheckBinop(x, x, zero); // x & 0 => x
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R.CheckBinop(x, zero, x); // 0 & x => x
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R.CheckBinop(minus_1, x, minus_1); // x & -1 => -1
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R.CheckBinop(minus_1, minus_1, x); // -1 & x => -1
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R.CheckBinop(x, x, x); // x & x => x
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}
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TEST(ReduceWord32Xor) {
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ReducerTester R;
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R.binop = R.machine.Word32Xor();
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FOR_INT32_INPUTS(pl) {
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FOR_INT32_INPUTS(pr) {
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int32_t x = *pl, y = *pr;
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R.CheckFoldBinop<int32_t>(x ^ y, x, y);
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}
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}
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R.CheckPutConstantOnRight(39);
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R.CheckPutConstantOnRight(4403);
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Node* x = R.Parameter();
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Node* zero = R.Constant<int32_t>(0);
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R.CheckBinop(x, x, zero); // x ^ 0 => x
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R.CheckBinop(x, zero, x); // 0 ^ x => x
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R.CheckFoldBinop<int32_t>(0, x, x); // x ^ x => 0
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}
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TEST(ReduceWord32Shl) {
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ReducerTester R;
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R.binop = R.machine.Word32Shl();
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// TODO(titzer): out of range shifts
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FOR_INT32_INPUTS(i) {
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for (int y = 0; y < 32; y++) {
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int32_t x = *i;
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R.CheckFoldBinop<int32_t>(x << y, x, y);
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}
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}
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R.CheckDontPutConstantOnRight(44);
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Node* x = R.Parameter();
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Node* zero = R.Constant<int32_t>(0);
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R.CheckBinop(x, x, zero); // x << 0 => x
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}
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TEST(ReduceWord32Shr) {
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ReducerTester R;
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R.binop = R.machine.Word32Shr();
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// TODO(titzer): test out of range shifts
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FOR_UINT32_INPUTS(i) {
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for (uint32_t y = 0; y < 32; y++) {
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uint32_t x = *i;
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R.CheckFoldBinop<int32_t>(x >> y, x, y);
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}
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}
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R.CheckDontPutConstantOnRight(44);
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Node* x = R.Parameter();
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Node* zero = R.Constant<int32_t>(0);
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R.CheckBinop(x, x, zero); // x >>> 0 => x
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}
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TEST(ReduceWord32Sar) {
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ReducerTester R;
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R.binop = R.machine.Word32Sar();
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// TODO(titzer): test out of range shifts
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FOR_INT32_INPUTS(i) {
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for (int32_t y = 0; y < 32; y++) {
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int32_t x = *i;
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R.CheckFoldBinop<int32_t>(x >> y, x, y);
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}
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}
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R.CheckDontPutConstantOnRight(44);
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Node* x = R.Parameter();
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Node* zero = R.Constant<int32_t>(0);
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R.CheckBinop(x, x, zero); // x >> 0 => x
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}
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static void CheckJsShift(ReducerTester* R) {
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DCHECK(R->machine.Word32ShiftIsSafe());
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Node* x = R->Parameter(0);
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Node* y = R->Parameter(1);
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Node* thirty_one = R->Constant<int32_t>(0x1f);
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Node* y_and_thirty_one =
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R->graph.NewNode(R->machine.Word32And(), y, thirty_one);
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// If the underlying machine shift instructions 'and' their right operand
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// with 0x1f then: x << (y & 0x1f) => x << y
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R->CheckFoldBinop(x, y, x, y_and_thirty_one);
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}
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TEST(ReduceJsShifts) {
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ReducerTester R(0, MachineOperatorBuilder::kWord32ShiftIsSafe);
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R.binop = R.machine.Word32Shl();
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CheckJsShift(&R);
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R.binop = R.machine.Word32Shr();
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CheckJsShift(&R);
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R.binop = R.machine.Word32Sar();
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CheckJsShift(&R);
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}
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TEST(Word32Equal) {
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ReducerTester R;
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R.binop = R.machine.Word32Equal();
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FOR_INT32_INPUTS(pl) {
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FOR_INT32_INPUTS(pr) {
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int32_t x = *pl, y = *pr;
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R.CheckFoldBinop<int32_t>(x == y ? 1 : 0, x, y);
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}
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}
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R.CheckPutConstantOnRight(48);
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R.CheckPutConstantOnRight(-48);
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Node* x = R.Parameter(0);
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Node* y = R.Parameter(1);
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Node* zero = R.Constant<int32_t>(0);
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Node* sub = R.graph.NewNode(R.machine.Int32Sub(), x, y);
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R.CheckFoldBinop<int32_t>(1, x, x); // x == x => 1
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R.CheckFoldBinop(x, y, sub, zero); // x - y == 0 => x == y
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R.CheckFoldBinop(x, y, zero, sub); // 0 == x - y => x == y
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}
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TEST(ReduceInt32Add) {
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ReducerTester R;
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R.binop = R.machine.Int32Add();
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FOR_INT32_INPUTS(pl) {
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FOR_INT32_INPUTS(pr) {
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int32_t x = *pl, y = *pr;
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R.CheckFoldBinop<int32_t>(x + y, x, y); // TODO(titzer): signed overflow
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}
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}
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R.CheckPutConstantOnRight(41);
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R.CheckPutConstantOnRight(4407);
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Node* x = R.Parameter();
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Node* zero = R.Constant<int32_t>(0);
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R.CheckBinop(x, x, zero); // x + 0 => x
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R.CheckBinop(x, zero, x); // 0 + x => x
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}
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TEST(ReduceInt32Sub) {
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ReducerTester R;
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R.binop = R.machine.Int32Sub();
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FOR_INT32_INPUTS(pl) {
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FOR_INT32_INPUTS(pr) {
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int32_t x = *pl, y = *pr;
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R.CheckFoldBinop<int32_t>(x - y, x, y);
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}
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}
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R.CheckDontPutConstantOnRight(412);
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Node* x = R.Parameter();
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Node* zero = R.Constant<int32_t>(0);
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R.CheckBinop(x, x, zero); // x - 0 => x
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}
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TEST(ReduceInt32Mul) {
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ReducerTester R;
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R.binop = R.machine.Int32Mul();
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FOR_INT32_INPUTS(pl) {
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FOR_INT32_INPUTS(pr) {
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int32_t x = *pl, y = *pr;
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R.CheckFoldBinop<int32_t>(x * y, x, y); // TODO(titzer): signed overflow
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}
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}
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R.CheckPutConstantOnRight(4111);
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R.CheckPutConstantOnRight(-4407);
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Node* x = R.Parameter();
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Node* zero = R.Constant<int32_t>(0);
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Node* one = R.Constant<int32_t>(1);
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Node* minus_one = R.Constant<int32_t>(-1);
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R.CheckBinop(zero, x, zero); // x * 0 => 0
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R.CheckBinop(zero, zero, x); // 0 * x => 0
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R.CheckBinop(x, x, one); // x * 1 => x
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R.CheckBinop(x, one, x); // 1 * x => x
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R.CheckFoldBinop<int32_t>(0, R.machine.Int32Sub(), x, minus_one,
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x); // -1 * x => 0 - x
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R.CheckFoldBinop<int32_t>(0, R.machine.Int32Sub(), x, x,
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minus_one); // x * -1 => 0 - x
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for (int32_t n = 1; n < 31; ++n) {
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Node* multiplier = R.Constant<int32_t>(1 << n);
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R.CheckFoldBinop<int32_t>(x, R.machine.Word32Shl(), n, x,
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multiplier); // x * 2^n => x << n
|
|
R.CheckFoldBinop<int32_t>(x, R.machine.Word32Shl(), n, multiplier,
|
|
x); // 2^n * x => x << n
|
|
}
|
|
}
|
|
|
|
|
|
TEST(ReduceInt32Div) {
|
|
ReducerTester R;
|
|
R.binop = R.machine.Int32Div();
|
|
|
|
FOR_INT32_INPUTS(pl) {
|
|
FOR_INT32_INPUTS(pr) {
|
|
int32_t x = *pl, y = *pr;
|
|
if (y == 0) continue; // TODO(titzer): test / 0
|
|
int32_t r = y == -1 ? -x : x / y; // INT_MIN / -1 may explode in C
|
|
R.CheckFoldBinop<int32_t>(r, x, y);
|
|
}
|
|
}
|
|
|
|
R.CheckDontPutConstantOnRight(41111);
|
|
R.CheckDontPutConstantOnRight(-44071);
|
|
|
|
Node* x = R.Parameter();
|
|
Node* one = R.Constant<int32_t>(1);
|
|
Node* minus_one = R.Constant<int32_t>(-1);
|
|
|
|
R.CheckBinop(x, x, one); // x / 1 => x
|
|
// TODO(titzer): // 0 / x => 0 if x != 0
|
|
// TODO(titzer): // x / 2^n => x >> n and round
|
|
R.CheckFoldBinop<int32_t>(0, R.machine.Int32Sub(), x, x,
|
|
minus_one); // x / -1 => 0 - x
|
|
}
|
|
|
|
|
|
TEST(ReduceUint32Div) {
|
|
ReducerTester R;
|
|
R.binop = R.machine.Uint32Div();
|
|
|
|
FOR_UINT32_INPUTS(pl) {
|
|
FOR_UINT32_INPUTS(pr) {
|
|
uint32_t x = *pl, y = *pr;
|
|
if (y == 0) continue; // TODO(titzer): test / 0
|
|
R.CheckFoldBinop<int32_t>(x / y, x, y);
|
|
}
|
|
}
|
|
|
|
R.CheckDontPutConstantOnRight(41311);
|
|
R.CheckDontPutConstantOnRight(-44371);
|
|
|
|
Node* x = R.Parameter();
|
|
Node* one = R.Constant<int32_t>(1);
|
|
|
|
R.CheckBinop(x, x, one); // x / 1 => x
|
|
// TODO(titzer): // 0 / x => 0 if x != 0
|
|
|
|
for (uint32_t n = 1; n < 32; ++n) {
|
|
Node* divisor = R.Constant<int32_t>(1u << n);
|
|
R.CheckFoldBinop<int32_t>(x, R.machine.Word32Shr(), n, x,
|
|
divisor); // x / 2^n => x >> n
|
|
}
|
|
}
|
|
|
|
|
|
TEST(ReduceInt32Mod) {
|
|
ReducerTester R;
|
|
R.binop = R.machine.Int32Mod();
|
|
|
|
FOR_INT32_INPUTS(pl) {
|
|
FOR_INT32_INPUTS(pr) {
|
|
int32_t x = *pl, y = *pr;
|
|
if (y == 0) continue; // TODO(titzer): test % 0
|
|
int32_t r = y == -1 ? 0 : x % y; // INT_MIN % -1 may explode in C
|
|
R.CheckFoldBinop<int32_t>(r, x, y);
|
|
}
|
|
}
|
|
|
|
R.CheckDontPutConstantOnRight(413);
|
|
R.CheckDontPutConstantOnRight(-4401);
|
|
|
|
Node* x = R.Parameter();
|
|
Node* one = R.Constant<int32_t>(1);
|
|
|
|
R.CheckFoldBinop<int32_t>(0, x, one); // x % 1 => 0
|
|
// TODO(titzer): // x % 2^n => x & 2^n-1 and round
|
|
}
|
|
|
|
|
|
TEST(ReduceUint32Mod) {
|
|
ReducerTester R;
|
|
R.binop = R.machine.Uint32Mod();
|
|
|
|
FOR_INT32_INPUTS(pl) {
|
|
FOR_INT32_INPUTS(pr) {
|
|
uint32_t x = *pl, y = *pr;
|
|
if (y == 0) continue; // TODO(titzer): test x % 0
|
|
R.CheckFoldBinop<int32_t>(x % y, x, y);
|
|
}
|
|
}
|
|
|
|
R.CheckDontPutConstantOnRight(417);
|
|
R.CheckDontPutConstantOnRight(-4371);
|
|
|
|
Node* x = R.Parameter();
|
|
Node* one = R.Constant<int32_t>(1);
|
|
|
|
R.CheckFoldBinop<int32_t>(0, x, one); // x % 1 => 0
|
|
|
|
for (uint32_t n = 1; n < 32; ++n) {
|
|
Node* divisor = R.Constant<int32_t>(1u << n);
|
|
R.CheckFoldBinop<int32_t>(x, R.machine.Word32And(), (1u << n) - 1, x,
|
|
divisor); // x % 2^n => x & 2^n-1
|
|
}
|
|
}
|
|
|
|
|
|
TEST(ReduceInt32LessThan) {
|
|
ReducerTester R;
|
|
R.binop = R.machine.Int32LessThan();
|
|
|
|
FOR_INT32_INPUTS(pl) {
|
|
FOR_INT32_INPUTS(pr) {
|
|
int32_t x = *pl, y = *pr;
|
|
R.CheckFoldBinop<int32_t>(x < y ? 1 : 0, x, y);
|
|
}
|
|
}
|
|
|
|
R.CheckDontPutConstantOnRight(41399);
|
|
R.CheckDontPutConstantOnRight(-440197);
|
|
|
|
Node* x = R.Parameter(0);
|
|
Node* y = R.Parameter(1);
|
|
Node* zero = R.Constant<int32_t>(0);
|
|
Node* sub = R.graph.NewNode(R.machine.Int32Sub(), x, y);
|
|
|
|
R.CheckFoldBinop<int32_t>(0, x, x); // x < x => 0
|
|
R.CheckFoldBinop(x, y, sub, zero); // x - y < 0 => x < y
|
|
R.CheckFoldBinop(y, x, zero, sub); // 0 < x - y => y < x
|
|
}
|
|
|
|
|
|
TEST(ReduceInt32LessThanOrEqual) {
|
|
ReducerTester R;
|
|
R.binop = R.machine.Int32LessThanOrEqual();
|
|
|
|
FOR_INT32_INPUTS(pl) {
|
|
FOR_INT32_INPUTS(pr) {
|
|
int32_t x = *pl, y = *pr;
|
|
R.CheckFoldBinop<int32_t>(x <= y ? 1 : 0, x, y);
|
|
}
|
|
}
|
|
|
|
FOR_INT32_INPUTS(i) { R.CheckDontPutConstantOnRight<int32_t>(*i); }
|
|
|
|
Node* x = R.Parameter(0);
|
|
Node* y = R.Parameter(1);
|
|
Node* zero = R.Constant<int32_t>(0);
|
|
Node* sub = R.graph.NewNode(R.machine.Int32Sub(), x, y);
|
|
|
|
R.CheckFoldBinop<int32_t>(1, x, x); // x <= x => 1
|
|
R.CheckFoldBinop(x, y, sub, zero); // x - y <= 0 => x <= y
|
|
R.CheckFoldBinop(y, x, zero, sub); // 0 <= x - y => y <= x
|
|
}
|
|
|
|
|
|
TEST(ReduceUint32LessThan) {
|
|
ReducerTester R;
|
|
R.binop = R.machine.Uint32LessThan();
|
|
|
|
FOR_UINT32_INPUTS(pl) {
|
|
FOR_UINT32_INPUTS(pr) {
|
|
uint32_t x = *pl, y = *pr;
|
|
R.CheckFoldBinop<int32_t>(x < y ? 1 : 0, x, y);
|
|
}
|
|
}
|
|
|
|
R.CheckDontPutConstantOnRight(41399);
|
|
R.CheckDontPutConstantOnRight(-440197);
|
|
|
|
Node* x = R.Parameter();
|
|
Node* max = R.maxuint32;
|
|
Node* zero = R.Constant<int32_t>(0);
|
|
|
|
R.CheckFoldBinop<int32_t>(0, max, x); // M < x => 0
|
|
R.CheckFoldBinop<int32_t>(0, x, zero); // x < 0 => 0
|
|
R.CheckFoldBinop<int32_t>(0, x, x); // x < x => 0
|
|
}
|
|
|
|
|
|
TEST(ReduceUint32LessThanOrEqual) {
|
|
ReducerTester R;
|
|
R.binop = R.machine.Uint32LessThanOrEqual();
|
|
|
|
FOR_UINT32_INPUTS(pl) {
|
|
FOR_UINT32_INPUTS(pr) {
|
|
uint32_t x = *pl, y = *pr;
|
|
R.CheckFoldBinop<int32_t>(x <= y ? 1 : 0, x, y);
|
|
}
|
|
}
|
|
|
|
R.CheckDontPutConstantOnRight(41399);
|
|
R.CheckDontPutConstantOnRight(-440197);
|
|
|
|
Node* x = R.Parameter();
|
|
Node* max = R.maxuint32;
|
|
Node* zero = R.Constant<int32_t>(0);
|
|
|
|
R.CheckFoldBinop<int32_t>(1, x, max); // x <= M => 1
|
|
R.CheckFoldBinop<int32_t>(1, zero, x); // 0 <= x => 1
|
|
R.CheckFoldBinop<int32_t>(1, x, x); // x <= x => 1
|
|
}
|
|
|
|
|
|
TEST(ReduceLoadStore) {
|
|
ReducerTester R;
|
|
|
|
Node* base = R.Constant<int32_t>(11);
|
|
Node* index = R.Constant<int32_t>(4);
|
|
Node* load = R.graph.NewNode(R.machine.Load(kMachInt32), base, index);
|
|
|
|
{
|
|
MachineOperatorReducer reducer(&R.jsgraph);
|
|
Reduction reduction = reducer.Reduce(load);
|
|
CHECK(!reduction.Changed()); // loads should not be reduced.
|
|
}
|
|
|
|
{
|
|
Node* store = R.graph.NewNode(
|
|
R.machine.Store(StoreRepresentation(kMachInt32, kNoWriteBarrier)), base,
|
|
index, load);
|
|
MachineOperatorReducer reducer(&R.jsgraph);
|
|
Reduction reduction = reducer.Reduce(store);
|
|
CHECK(!reduction.Changed()); // stores should not be reduced.
|
|
}
|
|
}
|
|
|
|
|
|
// TODO(titzer): test MachineOperatorReducer for Word64And
|
|
// TODO(titzer): test MachineOperatorReducer for Word64Or
|
|
// TODO(titzer): test MachineOperatorReducer for Word64Xor
|
|
// TODO(titzer): test MachineOperatorReducer for Word64Shl
|
|
// TODO(titzer): test MachineOperatorReducer for Word64Shr
|
|
// TODO(titzer): test MachineOperatorReducer for Word64Sar
|
|
// TODO(titzer): test MachineOperatorReducer for Word64Equal
|
|
// TODO(titzer): test MachineOperatorReducer for Word64Not
|
|
// TODO(titzer): test MachineOperatorReducer for Int64Add
|
|
// TODO(titzer): test MachineOperatorReducer for Int64Sub
|
|
// TODO(titzer): test MachineOperatorReducer for Int64Mul
|
|
// TODO(titzer): test MachineOperatorReducer for Int64UMul
|
|
// TODO(titzer): test MachineOperatorReducer for Int64Div
|
|
// TODO(titzer): test MachineOperatorReducer for Uint64Div
|
|
// TODO(titzer): test MachineOperatorReducer for Int64Mod
|
|
// TODO(titzer): test MachineOperatorReducer for Uint64Mod
|
|
// TODO(titzer): test MachineOperatorReducer for Int64Neg
|
|
// TODO(titzer): test MachineOperatorReducer for ChangeInt32ToFloat64
|
|
// TODO(titzer): test MachineOperatorReducer for ChangeFloat64ToInt32
|
|
// TODO(titzer): test MachineOperatorReducer for Float64Compare
|
|
// TODO(titzer): test MachineOperatorReducer for Float64Add
|
|
// TODO(titzer): test MachineOperatorReducer for Float64Sub
|
|
// TODO(titzer): test MachineOperatorReducer for Float64Mul
|
|
// TODO(titzer): test MachineOperatorReducer for Float64Div
|
|
// TODO(titzer): test MachineOperatorReducer for Float64Mod
|