v8/test/cctest/compiler/test-js-constant-cache.cc
Andreas Haas 2a3c2c73d5 Reland: [refactoring] Remove the isolate from signatures of ExternalReferences
I missed one required change which was hidden behind an #if. The fix is in
the diff between Patch 1 and Patch 3.

Original message:
In this CL I remove the isolate from signatures of ExternalReference
accessor functions where the isolate is not used. The uses of the
isolate were already removed in previous CLs.

Changes:
* I split the ExternalReference list in external-reference.h into
those which need the isolate for initialization and those which do not.

* I removed the public constructors and replaced them by
  ExternalReference::Create(). The reason is to separate external
  creation more clearly from internal creation, because externally
  created ExternalReferences sometimes need redirection, whereas
  internally created ExternalReferences are just stored as they are.
  In addition, by removing the isolate from the signature of the
  public constructors, they suddenly exactly matched the interal
  constructor.

* Replace all uses of the public constructors with
  ExternalReference::Create().

* Remove the isolate from all call sites where necessary.


This is a step towards making WebAssembly compilation independent of
the isolate.

R=mstarzinger@chromium.org

Bug: v8:7570
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I750c162f5d58ed32e866722b0db920f8b9bd8057
Reviewed-on: https://chromium-review.googlesource.com/1026673
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52777}
2018-04-25 09:47:30 +00:00

401 lines
12 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/assembler.h"
#include "src/compiler/js-graph.h"
#include "src/compiler/node-properties.h"
#include "src/heap/factory-inl.h"
#include "test/cctest/cctest.h"
#include "test/cctest/compiler/value-helper.h"
namespace v8 {
namespace internal {
namespace compiler {
class JSCacheTesterHelper {
protected:
JSCacheTesterHelper(Isolate* isolate, Zone* zone)
: main_graph_(zone),
main_common_(zone),
main_javascript_(zone),
main_machine_(zone) {}
Graph main_graph_;
CommonOperatorBuilder main_common_;
JSOperatorBuilder main_javascript_;
MachineOperatorBuilder main_machine_;
};
// TODO(dcarney): JSConstantCacheTester inherits from JSGraph???
class JSConstantCacheTester : public HandleAndZoneScope,
public JSCacheTesterHelper,
public JSGraph {
public:
JSConstantCacheTester()
: JSCacheTesterHelper(main_isolate(), main_zone()),
JSGraph(main_isolate(), &main_graph_, &main_common_, &main_javascript_,
nullptr, &main_machine_) {
main_graph_.SetStart(main_graph_.NewNode(common()->Start(0)));
main_graph_.SetEnd(
main_graph_.NewNode(common()->End(1), main_graph_.start()));
}
Handle<HeapObject> handle(Node* node) {
CHECK_EQ(IrOpcode::kHeapConstant, node->opcode());
return HeapConstantOf(node->op());
}
Factory* factory() { return main_isolate()->factory(); }
};
TEST(ZeroConstant1) {
JSConstantCacheTester T;
Node* zero = T.ZeroConstant();
CHECK_EQ(IrOpcode::kNumberConstant, zero->opcode());
CHECK_EQ(zero, T.Constant(0));
CHECK_NE(zero, T.Constant(-0.0));
CHECK_NE(zero, T.Constant(1.0));
CHECK_NE(zero, T.Constant(std::numeric_limits<double>::quiet_NaN()));
CHECK_NE(zero, T.Float64Constant(0));
CHECK_NE(zero, T.Int32Constant(0));
}
TEST(MinusZeroConstant) {
JSConstantCacheTester T;
Node* minus_zero = T.Constant(-0.0);
Node* zero = T.ZeroConstant();
CHECK_EQ(IrOpcode::kNumberConstant, minus_zero->opcode());
CHECK_EQ(minus_zero, T.Constant(-0.0));
CHECK_NE(zero, minus_zero);
double zero_value = OpParameter<double>(zero->op());
double minus_zero_value = OpParameter<double>(minus_zero->op());
CHECK(bit_cast<uint64_t>(0.0) == bit_cast<uint64_t>(zero_value));
CHECK(bit_cast<uint64_t>(-0.0) != bit_cast<uint64_t>(zero_value));
CHECK(bit_cast<uint64_t>(0.0) != bit_cast<uint64_t>(minus_zero_value));
CHECK(bit_cast<uint64_t>(-0.0) == bit_cast<uint64_t>(minus_zero_value));
}
TEST(ZeroConstant2) {
JSConstantCacheTester T;
Node* zero = T.Constant(0);
CHECK_EQ(IrOpcode::kNumberConstant, zero->opcode());
CHECK_EQ(zero, T.ZeroConstant());
CHECK_NE(zero, T.Constant(-0.0));
CHECK_NE(zero, T.Constant(1.0));
CHECK_NE(zero, T.Constant(std::numeric_limits<double>::quiet_NaN()));
CHECK_NE(zero, T.Float64Constant(0));
CHECK_NE(zero, T.Int32Constant(0));
}
TEST(OneConstant1) {
JSConstantCacheTester T;
Node* one = T.OneConstant();
CHECK_EQ(IrOpcode::kNumberConstant, one->opcode());
CHECK_EQ(one, T.Constant(1));
CHECK_EQ(one, T.Constant(1.0));
CHECK_NE(one, T.Constant(1.01));
CHECK_NE(one, T.Constant(-1.01));
CHECK_NE(one, T.Constant(std::numeric_limits<double>::quiet_NaN()));
CHECK_NE(one, T.Float64Constant(1.0));
CHECK_NE(one, T.Int32Constant(1));
}
TEST(OneConstant2) {
JSConstantCacheTester T;
Node* one = T.Constant(1);
CHECK_EQ(IrOpcode::kNumberConstant, one->opcode());
CHECK_EQ(one, T.OneConstant());
CHECK_EQ(one, T.Constant(1.0));
CHECK_NE(one, T.Constant(1.01));
CHECK_NE(one, T.Constant(-1.01));
CHECK_NE(one, T.Constant(std::numeric_limits<double>::quiet_NaN()));
CHECK_NE(one, T.Float64Constant(1.0));
CHECK_NE(one, T.Int32Constant(1));
}
TEST(Canonicalizations) {
JSConstantCacheTester T;
CHECK_EQ(T.ZeroConstant(), T.ZeroConstant());
CHECK_EQ(T.UndefinedConstant(), T.UndefinedConstant());
CHECK_EQ(T.TheHoleConstant(), T.TheHoleConstant());
CHECK_EQ(T.TrueConstant(), T.TrueConstant());
CHECK_EQ(T.FalseConstant(), T.FalseConstant());
CHECK_EQ(T.NullConstant(), T.NullConstant());
CHECK_EQ(T.ZeroConstant(), T.ZeroConstant());
CHECK_EQ(T.OneConstant(), T.OneConstant());
CHECK_EQ(T.NaNConstant(), T.NaNConstant());
}
TEST(NoAliasing) {
JSConstantCacheTester T;
Node* nodes[] = {T.UndefinedConstant(), T.TheHoleConstant(), T.TrueConstant(),
T.FalseConstant(), T.NullConstant(), T.ZeroConstant(),
T.OneConstant(), T.NaNConstant(), T.Constant(21),
T.Constant(22.2)};
for (size_t i = 0; i < arraysize(nodes); i++) {
for (size_t j = 0; j < arraysize(nodes); j++) {
if (i != j) CHECK_NE(nodes[i], nodes[j]);
}
}
}
TEST(CanonicalizingNumbers) {
JSConstantCacheTester T;
FOR_FLOAT64_INPUTS(i) {
Node* node = T.Constant(*i);
for (int j = 0; j < 5; j++) {
CHECK_EQ(node, T.Constant(*i));
}
}
}
TEST(HeapNumbers) {
JSConstantCacheTester T;
FOR_FLOAT64_INPUTS(i) {
double value = *i;
Handle<Object> num = T.factory()->NewNumber(value);
Handle<HeapNumber> heap = T.factory()->NewHeapNumber(value);
Node* node1 = T.Constant(value);
Node* node2 = T.Constant(num);
Node* node3 = T.Constant(heap);
CHECK_EQ(node1, node2);
CHECK_EQ(node1, node3);
}
}
TEST(OddballHandle) {
JSConstantCacheTester T;
CHECK_EQ(T.UndefinedConstant(), T.Constant(T.factory()->undefined_value()));
CHECK_EQ(T.TheHoleConstant(), T.Constant(T.factory()->the_hole_value()));
CHECK_EQ(T.TrueConstant(), T.Constant(T.factory()->true_value()));
CHECK_EQ(T.FalseConstant(), T.Constant(T.factory()->false_value()));
CHECK_EQ(T.NullConstant(), T.Constant(T.factory()->null_value()));
CHECK_EQ(T.NaNConstant(), T.Constant(T.factory()->nan_value()));
}
TEST(OddballValues) {
JSConstantCacheTester T;
CHECK_EQ(*T.factory()->undefined_value(), *T.handle(T.UndefinedConstant()));
CHECK_EQ(*T.factory()->the_hole_value(), *T.handle(T.TheHoleConstant()));
CHECK_EQ(*T.factory()->true_value(), *T.handle(T.TrueConstant()));
CHECK_EQ(*T.factory()->false_value(), *T.handle(T.FalseConstant()));
CHECK_EQ(*T.factory()->null_value(), *T.handle(T.NullConstant()));
}
TEST(ExternalReferences) {
// TODO(titzer): test canonicalization of external references.
}
static bool Contains(NodeVector* nodes, Node* n) {
for (size_t i = 0; i < nodes->size(); i++) {
if (nodes->at(i) == n) return true;
}
return false;
}
static void CheckGetCachedNodesContains(JSConstantCacheTester* T, Node* n) {
NodeVector nodes(T->main_zone());
T->GetCachedNodes(&nodes);
CHECK(Contains(&nodes, n));
}
TEST(JSGraph_GetCachedNodes1) {
JSConstantCacheTester T;
CheckGetCachedNodesContains(&T, T.TrueConstant());
CheckGetCachedNodesContains(&T, T.UndefinedConstant());
CheckGetCachedNodesContains(&T, T.TheHoleConstant());
CheckGetCachedNodesContains(&T, T.TrueConstant());
CheckGetCachedNodesContains(&T, T.FalseConstant());
CheckGetCachedNodesContains(&T, T.NullConstant());
CheckGetCachedNodesContains(&T, T.ZeroConstant());
CheckGetCachedNodesContains(&T, T.OneConstant());
CheckGetCachedNodesContains(&T, T.NaNConstant());
}
TEST(JSGraph_GetCachedNodes_int32) {
JSConstantCacheTester T;
int32_t constants[] = {0, 1, 1, 1, 1, 2, 3, 4, 11, 12, 13,
14, 55, -55, -44, -33, -22, -11, 16, 16, 17, 17,
18, 18, 19, 19, 20, 20, 21, 21, 22, 23, 24,
25, 15, 30, 31, 45, 46, 47, 48};
for (size_t i = 0; i < arraysize(constants); i++) {
size_t count_before = T.graph()->NodeCount();
NodeVector nodes_before(T.main_zone());
T.GetCachedNodes(&nodes_before);
Node* n = T.Int32Constant(constants[i]);
if (n->id() < count_before) {
// An old ID indicates a cached node. It should have been in the set.
CHECK(Contains(&nodes_before, n));
}
// Old or new, it should be in the cached set afterwards.
CheckGetCachedNodesContains(&T, n);
}
}
TEST(JSGraph_GetCachedNodes_float64) {
JSConstantCacheTester T;
double constants[] = {0, 11.1, 12.2, 13, 14, 55.5, -55.5, -44.4,
-33, -22, -11, 0, 11.1, 11.1, 12.3, 12.3,
11, 11, -33.3, -33.3, -22, -11};
for (size_t i = 0; i < arraysize(constants); i++) {
size_t count_before = T.graph()->NodeCount();
NodeVector nodes_before(T.main_zone());
T.GetCachedNodes(&nodes_before);
Node* n = T.Float64Constant(constants[i]);
if (n->id() < count_before) {
// An old ID indicates a cached node. It should have been in the set.
CHECK(Contains(&nodes_before, n));
}
// Old or new, it should be in the cached set afterwards.
CheckGetCachedNodesContains(&T, n);
}
}
TEST(JSGraph_GetCachedNodes_int64) {
JSConstantCacheTester T;
int32_t constants[] = {0, 11, 12, 13, 14, 55, -55, -44, -33,
-22, -11, 16, 16, 17, 17, 18, 18, 19,
19, 20, 20, 21, 21, 22, 23, 24, 25};
for (size_t i = 0; i < arraysize(constants); i++) {
size_t count_before = T.graph()->NodeCount();
NodeVector nodes_before(T.main_zone());
T.GetCachedNodes(&nodes_before);
Node* n = T.Int64Constant(constants[i]);
if (n->id() < count_before) {
// An old ID indicates a cached node. It should have been in the set.
CHECK(Contains(&nodes_before, n));
}
// Old or new, it should be in the cached set afterwards.
CheckGetCachedNodesContains(&T, n);
}
}
TEST(JSGraph_GetCachedNodes_number) {
JSConstantCacheTester T;
double constants[] = {0, 11.1, 12.2, 13, 14, 55.5, -55.5, -44.4,
-33, -22, -11, 0, 11.1, 11.1, 12.3, 12.3,
11, 11, -33.3, -33.3, -22, -11};
for (size_t i = 0; i < arraysize(constants); i++) {
size_t count_before = T.graph()->NodeCount();
NodeVector nodes_before(T.main_zone());
T.GetCachedNodes(&nodes_before);
Node* n = T.Constant(constants[i]);
if (n->id() < count_before) {
// An old ID indicates a cached node. It should have been in the set.
CHECK(Contains(&nodes_before, n));
}
// Old or new, it should be in the cached set afterwards.
CheckGetCachedNodesContains(&T, n);
}
}
TEST(JSGraph_GetCachedNodes_external) {
JSConstantCacheTester T;
ExternalReference constants[] = {ExternalReference::address_of_min_int(),
ExternalReference::address_of_min_int(),
ExternalReference::address_of_min_int(),
ExternalReference::address_of_one_half(),
ExternalReference::address_of_one_half(),
ExternalReference::address_of_min_int(),
ExternalReference::address_of_the_hole_nan(),
ExternalReference::address_of_one_half()};
for (size_t i = 0; i < arraysize(constants); i++) {
size_t count_before = T.graph()->NodeCount();
NodeVector nodes_before(T.main_zone());
T.GetCachedNodes(&nodes_before);
Node* n = T.ExternalConstant(constants[i]);
if (n->id() < count_before) {
// An old ID indicates a cached node. It should have been in the set.
CHECK(Contains(&nodes_before, n));
}
// Old or new, it should be in the cached set afterwards.
CheckGetCachedNodesContains(&T, n);
}
}
TEST(JSGraph_GetCachedNodes_together) {
JSConstantCacheTester T;
Node* constants[] = {
T.TrueConstant(),
T.UndefinedConstant(),
T.TheHoleConstant(),
T.TrueConstant(),
T.FalseConstant(),
T.NullConstant(),
T.ZeroConstant(),
T.OneConstant(),
T.NaNConstant(),
T.Int32Constant(0),
T.Int32Constant(1),
T.Int64Constant(-2),
T.Int64Constant(-4),
T.Float64Constant(0.9),
T.Float64Constant(V8_INFINITY),
T.Constant(0.99),
T.Constant(1.11),
T.ExternalConstant(ExternalReference::address_of_one_half())};
NodeVector nodes(T.main_zone());
T.GetCachedNodes(&nodes);
for (size_t i = 0; i < arraysize(constants); i++) {
CHECK(Contains(&nodes, constants[i]));
}
}
} // namespace compiler
} // namespace internal
} // namespace v8