1 // Copyright 2015 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/interface-descriptors.h"
6 #include "src/isolate.h"
7 #include "test/cctest/compiler/function-tester.h"
8
9 namespace v8 {
10 namespace internal {
11 namespace compiler {
12
13
14 class CodeStubAssemblerTester : public CodeStubAssembler {
15 public:
CodeStubAssemblerTester(Isolate * isolate,const CallInterfaceDescriptor & descriptor)16 CodeStubAssemblerTester(Isolate* isolate,
17 const CallInterfaceDescriptor& descriptor)
18 : CodeStubAssembler(isolate, isolate->runtime_zone(), descriptor,
19 Code::STUB, "test"),
20 scope_(isolate) {}
21
22 private:
23 HandleScope scope_;
24 LocalContext context_;
25 };
26
27
TEST(SimpleSmiReturn)28 TEST(SimpleSmiReturn) {
29 Isolate* isolate(CcTest::InitIsolateOnce());
30 VoidDescriptor descriptor(isolate);
31 CodeStubAssemblerTester m(isolate, descriptor);
32 m.Return(m.SmiTag(m.Int32Constant(37)));
33 Handle<Code> code = m.GenerateCode();
34 FunctionTester ft(descriptor, code);
35 MaybeHandle<Object> result = ft.Call();
36 CHECK_EQ(37, Handle<Smi>::cast(result.ToHandleChecked())->value());
37 }
38
39
TEST(SimpleIntPtrReturn)40 TEST(SimpleIntPtrReturn) {
41 Isolate* isolate(CcTest::InitIsolateOnce());
42 VoidDescriptor descriptor(isolate);
43 CodeStubAssemblerTester m(isolate, descriptor);
44 int test;
45 m.Return(m.IntPtrConstant(reinterpret_cast<intptr_t>(&test)));
46 Handle<Code> code = m.GenerateCode();
47 FunctionTester ft(descriptor, code);
48 MaybeHandle<Object> result = ft.Call();
49 CHECK_EQ(reinterpret_cast<intptr_t>(&test),
50 reinterpret_cast<intptr_t>(*result.ToHandleChecked()));
51 }
52
53
TEST(SimpleDoubleReturn)54 TEST(SimpleDoubleReturn) {
55 Isolate* isolate(CcTest::InitIsolateOnce());
56 VoidDescriptor descriptor(isolate);
57 CodeStubAssemblerTester m(isolate, descriptor);
58 m.Return(m.NumberConstant(0.5));
59 Handle<Code> code = m.GenerateCode();
60 FunctionTester ft(descriptor, code);
61 MaybeHandle<Object> result = ft.Call();
62 CHECK_EQ(0.5, Handle<HeapNumber>::cast(result.ToHandleChecked())->value());
63 }
64
65
TEST(SimpleCallRuntime1Arg)66 TEST(SimpleCallRuntime1Arg) {
67 Isolate* isolate(CcTest::InitIsolateOnce());
68 VoidDescriptor descriptor(isolate);
69 CodeStubAssemblerTester m(isolate, descriptor);
70 Node* context = m.HeapConstant(Handle<Context>(isolate->native_context()));
71 Node* b = m.SmiTag(m.Int32Constant(256));
72 m.Return(m.CallRuntime(Runtime::kMathSqrt, context, b));
73 Handle<Code> code = m.GenerateCode();
74 FunctionTester ft(descriptor, code);
75 MaybeHandle<Object> result = ft.Call();
76 CHECK_EQ(16, Handle<Smi>::cast(result.ToHandleChecked())->value());
77 }
78
79
TEST(SimpleTailCallRuntime1Arg)80 TEST(SimpleTailCallRuntime1Arg) {
81 Isolate* isolate(CcTest::InitIsolateOnce());
82 VoidDescriptor descriptor(isolate);
83 CodeStubAssemblerTester m(isolate, descriptor);
84 Node* context = m.HeapConstant(Handle<Context>(isolate->native_context()));
85 Node* b = m.SmiTag(m.Int32Constant(256));
86 m.TailCallRuntime(Runtime::kMathSqrt, context, b);
87 Handle<Code> code = m.GenerateCode();
88 FunctionTester ft(descriptor, code);
89 MaybeHandle<Object> result = ft.Call();
90 CHECK_EQ(16, Handle<Smi>::cast(result.ToHandleChecked())->value());
91 }
92
93
TEST(SimpleCallRuntime2Arg)94 TEST(SimpleCallRuntime2Arg) {
95 Isolate* isolate(CcTest::InitIsolateOnce());
96 VoidDescriptor descriptor(isolate);
97 CodeStubAssemblerTester m(isolate, descriptor);
98 Node* context = m.HeapConstant(Handle<Context>(isolate->native_context()));
99 Node* a = m.SmiTag(m.Int32Constant(2));
100 Node* b = m.SmiTag(m.Int32Constant(4));
101 m.Return(m.CallRuntime(Runtime::kMathPow, context, a, b));
102 Handle<Code> code = m.GenerateCode();
103 FunctionTester ft(descriptor, code);
104 MaybeHandle<Object> result = ft.Call();
105 CHECK_EQ(16, Handle<Smi>::cast(result.ToHandleChecked())->value());
106 }
107
108
TEST(SimpleTailCallRuntime2Arg)109 TEST(SimpleTailCallRuntime2Arg) {
110 Isolate* isolate(CcTest::InitIsolateOnce());
111 VoidDescriptor descriptor(isolate);
112 CodeStubAssemblerTester m(isolate, descriptor);
113 Node* context = m.HeapConstant(Handle<Context>(isolate->native_context()));
114 Node* a = m.SmiTag(m.Int32Constant(2));
115 Node* b = m.SmiTag(m.Int32Constant(4));
116 m.TailCallRuntime(Runtime::kMathPow, context, a, b);
117 Handle<Code> code = m.GenerateCode();
118 FunctionTester ft(descriptor, code);
119 MaybeHandle<Object> result = ft.Call();
120 CHECK_EQ(16, Handle<Smi>::cast(result.ToHandleChecked())->value());
121 }
122
123 } // namespace compiler
124 } // namespace internal
125 } // namespace v8
126