1// Copyright 2014 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "src/v8.h"
6
7#include "src/compiler.h"
8#include "src/zone.h"
9
10#include "src/compiler/common-operator.h"
11#include "src/compiler/generic-node-inl.h"
12#include "src/compiler/graph.h"
13#include "src/compiler/linkage.h"
14#include "src/compiler/machine-operator.h"
15#include "src/compiler/node.h"
16#include "src/compiler/operator.h"
17#include "src/compiler/pipeline.h"
18#include "src/compiler/schedule.h"
19#include "test/cctest/cctest.h"
20
21#if V8_TURBOFAN_TARGET
22
23using namespace v8::internal;
24using namespace v8::internal::compiler;
25
26static SimpleOperator dummy_operator(IrOpcode::kParameter, Operator::kNoWrite,
27                                     0, 0, "dummy");
28
29// So we can get a real JS function.
30static Handle<JSFunction> Compile(const char* source) {
31  Isolate* isolate = CcTest::i_isolate();
32  Handle<String> source_code = isolate->factory()
33                                   ->NewStringFromUtf8(CStrVector(source))
34                                   .ToHandleChecked();
35  Handle<SharedFunctionInfo> shared_function = Compiler::CompileScript(
36      source_code, Handle<String>(), 0, 0, false,
37      Handle<Context>(isolate->native_context()), NULL, NULL,
38      v8::ScriptCompiler::kNoCompileOptions, NOT_NATIVES_CODE);
39  return isolate->factory()->NewFunctionFromSharedFunctionInfo(
40      shared_function, isolate->native_context());
41}
42
43
44TEST(TestLinkageCreate) {
45  InitializedHandleScope handles;
46  Handle<JSFunction> function = Compile("a + b");
47  CompilationInfoWithZone info(function);
48  Linkage linkage(&info);
49}
50
51
52TEST(TestLinkageJSFunctionIncoming) {
53  InitializedHandleScope handles;
54
55  const char* sources[] = {"(function() { })", "(function(a) { })",
56                           "(function(a,b) { })", "(function(a,b,c) { })"};
57
58  for (int i = 0; i < 3; i++) {
59    i::HandleScope handles(CcTest::i_isolate());
60    Handle<JSFunction> function = v8::Utils::OpenHandle(
61        *v8::Handle<v8::Function>::Cast(CompileRun(sources[i])));
62    CompilationInfoWithZone info(function);
63    Linkage linkage(&info);
64
65    CallDescriptor* descriptor = linkage.GetIncomingDescriptor();
66    CHECK_NE(NULL, descriptor);
67
68    CHECK_EQ(1 + i, descriptor->JSParameterCount());
69    CHECK_EQ(1, descriptor->ReturnCount());
70    CHECK_EQ(Operator::kNoProperties, descriptor->properties());
71    CHECK_EQ(true, descriptor->IsJSFunctionCall());
72  }
73}
74
75
76TEST(TestLinkageCodeStubIncoming) {
77  Isolate* isolate = CcTest::InitIsolateOnce();
78  CompilationInfoWithZone info(static_cast<HydrogenCodeStub*>(NULL), isolate);
79  Linkage linkage(&info);
80  // TODO(titzer): test linkage creation with a bonafide code stub.
81  // this just checks current behavior.
82  CHECK_EQ(NULL, linkage.GetIncomingDescriptor());
83}
84
85
86TEST(TestLinkageJSCall) {
87  HandleAndZoneScope handles;
88  Handle<JSFunction> function = Compile("a + c");
89  CompilationInfoWithZone info(function);
90  Linkage linkage(&info);
91
92  for (int i = 0; i < 32; i++) {
93    CallDescriptor* descriptor = linkage.GetJSCallDescriptor(i);
94    CHECK_NE(NULL, descriptor);
95    CHECK_EQ(i, descriptor->JSParameterCount());
96    CHECK_EQ(1, descriptor->ReturnCount());
97    CHECK_EQ(Operator::kNoProperties, descriptor->properties());
98    CHECK_EQ(true, descriptor->IsJSFunctionCall());
99  }
100}
101
102
103TEST(TestLinkageRuntimeCall) {
104  // TODO(titzer): test linkage creation for outgoing runtime calls.
105}
106
107
108TEST(TestLinkageStubCall) {
109  // TODO(titzer): test linkage creation for outgoing stub calls.
110}
111
112
113#endif  // V8_TURBOFAN_TARGET
114