1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
4 // met:
5 //
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28 #include <stdlib.h>
29
30 #include "v8.h"
31
32 #include "macro-assembler.h"
33 #include "factory.h"
34 #include "platform.h"
35 #include "serialize.h"
36 #include "cctest.h"
37
38 using namespace v8::internal;
39
40 #if __GNUC__
41 #define STDCALL __attribute__((stdcall))
42 #else
43 #define STDCALL __stdcall
44 #endif
45
46 typedef int STDCALL F0Type();
47 typedef F0Type* F0;
48
49 #define __ masm->
50
51
TEST(LoadAndStoreWithRepresentation)52 TEST(LoadAndStoreWithRepresentation) {
53 v8::internal::V8::Initialize(NULL);
54
55 // Allocate an executable page of memory.
56 size_t actual_size;
57 byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
58 &actual_size,
59 true));
60 CHECK(buffer);
61 Isolate* isolate = CcTest::i_isolate();
62 HandleScope handles(isolate);
63 MacroAssembler assembler(isolate, buffer, static_cast<int>(actual_size));
64 MacroAssembler* masm = &assembler; // Create a pointer for the __ macro.
65 __ push(ebx);
66 __ push(edx);
67 __ sub(esp, Immediate(1 * kPointerSize));
68 Label exit;
69
70 // Test 1.
71 __ mov(eax, Immediate(1)); // Test number.
72 __ mov(Operand(esp, 0 * kPointerSize), Immediate(0));
73 __ mov(ebx, Immediate(-1));
74 __ Store(ebx, Operand(esp, 0 * kPointerSize), Representation::UInteger8());
75 __ mov(ebx, Operand(esp, 0 * kPointerSize));
76 __ mov(edx, Immediate(255));
77 __ cmp(ebx, edx);
78 __ j(not_equal, &exit);
79 __ Load(ebx, Operand(esp, 0 * kPointerSize), Representation::UInteger8());
80 __ cmp(ebx, edx);
81 __ j(not_equal, &exit);
82
83
84 // Test 2.
85 __ mov(eax, Immediate(2)); // Test number.
86 __ mov(Operand(esp, 0 * kPointerSize), Immediate(0));
87 __ mov(ebx, Immediate(-1));
88 __ Store(ebx, Operand(esp, 0 * kPointerSize), Representation::Integer8());
89 __ mov(ebx, Operand(esp, 0 * kPointerSize));
90 __ mov(edx, Immediate(255));
91 __ cmp(ebx, edx);
92 __ j(not_equal, &exit);
93 __ Load(ebx, Operand(esp, 0 * kPointerSize), Representation::Integer8());
94 __ mov(edx, Immediate(-1));
95 __ cmp(ebx, edx);
96 __ j(not_equal, &exit);
97
98 // Test 3.
99 __ mov(eax, Immediate(3)); // Test number.
100 __ mov(Operand(esp, 0 * kPointerSize), Immediate(0));
101 __ mov(ebx, Immediate(-1));
102 __ Store(ebx, Operand(esp, 0 * kPointerSize), Representation::Integer16());
103 __ mov(ebx, Operand(esp, 0 * kPointerSize));
104 __ mov(edx, Immediate(65535));
105 __ cmp(ebx, edx);
106 __ j(not_equal, &exit);
107 __ Load(edx, Operand(esp, 0 * kPointerSize), Representation::Integer16());
108 __ mov(ebx, Immediate(-1));
109 __ cmp(ebx, edx);
110 __ j(not_equal, &exit);
111
112 // Test 4.
113 __ mov(eax, Immediate(4)); // Test number.
114 __ mov(Operand(esp, 0 * kPointerSize), Immediate(0));
115 __ mov(ebx, Immediate(-1));
116 __ Store(ebx, Operand(esp, 0 * kPointerSize), Representation::UInteger16());
117 __ mov(ebx, Operand(esp, 0 * kPointerSize));
118 __ mov(edx, Immediate(65535));
119 __ cmp(ebx, edx);
120 __ j(not_equal, &exit);
121 __ Load(edx, Operand(esp, 0 * kPointerSize), Representation::UInteger16());
122 __ cmp(ebx, edx);
123 __ j(not_equal, &exit);
124
125 __ xor_(eax, eax); // Success.
126 __ bind(&exit);
127 __ add(esp, Immediate(1 * kPointerSize));
128 __ pop(edx);
129 __ pop(ebx);
130 __ ret(0);
131
132 CodeDesc desc;
133 masm->GetCode(&desc);
134 // Call the function from C++.
135 int result = FUNCTION_CAST<F0>(buffer)();
136 CHECK_EQ(0, result);
137 }
138
139 #undef __
140