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Issue 66553004: Revert "Add signed/unsigned 8-bit and 16-bit Representations to Crankshaft" (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 1 month ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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125 } 125 }
126 } 126 }
127 127
128 // Check that the source data hasn't been clobbered. 128 // Check that the source data hasn't been clobbered.
129 for (int i = 0; i < data_size; i++) { 129 for (int i = 0; i < data_size; i++) {
130 CHECK(src_buffer[i] == to_non_zero(i)); 130 CHECK(src_buffer[i] == to_non_zero(i));
131 } 131 }
132 } 132 }
133 133
134 134
135 typedef int (*F0)();
136
137
138 TEST(LoadAndStoreWithRepresentation) {
139 v8::internal::V8::Initialize(NULL);
140
141 // Allocate an executable page of memory.
142 size_t actual_size;
143 byte* buffer = static_cast<byte*>(OS::Allocate(Assembler::kMinimalBufferSize,
144 &actual_size,
145 true));
146 CHECK(buffer);
147 Isolate* isolate = CcTest::i_isolate();
148 HandleScope handles(isolate);
149 MacroAssembler assembler(isolate, buffer, static_cast<int>(actual_size));
150 MacroAssembler* masm = &assembler; // Create a pointer for the __ macro.
151 masm->set_allow_stub_calls(false);
152 __ sub(sp, sp, Operand(1 * kPointerSize));
153 Label exit;
154
155 // Test 1.
156 __ mov(r0, Operand(1)); // Test number.
157 __ mov(r1, Operand(0));
158 __ str(r1, MemOperand(sp, 0 * kPointerSize));
159 __ mov(r2, Operand(-1));
160 __ Store(r2, MemOperand(sp, 0 * kPointerSize), Representation::UInteger8());
161 __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
162 __ mov(r2, Operand(255));
163 __ cmp(r3, r2);
164 __ b(ne, &exit);
165 __ mov(r2, Operand(255));
166 __ Load(r3, MemOperand(sp, 0 * kPointerSize), Representation::UInteger8());
167 __ cmp(r3, r2);
168 __ b(ne, &exit);
169
170 // Test 2.
171 __ mov(r0, Operand(2)); // Test number.
172 __ mov(r1, Operand(0));
173 __ str(r1, MemOperand(sp, 0 * kPointerSize));
174 __ mov(r2, Operand(-1));
175 __ Store(r2, MemOperand(sp, 0 * kPointerSize), Representation::Integer8());
176 __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
177 __ mov(r2, Operand(255));
178 __ cmp(r3, r2);
179 __ b(ne, &exit);
180 __ mov(r2, Operand(-1));
181 __ Load(r3, MemOperand(sp, 0 * kPointerSize), Representation::Integer8());
182 __ cmp(r3, r2);
183 __ b(ne, &exit);
184
185 // Test 3.
186 __ mov(r0, Operand(3)); // Test number.
187 __ mov(r1, Operand(0));
188 __ str(r1, MemOperand(sp, 0 * kPointerSize));
189 __ mov(r2, Operand(-1));
190 __ Store(r2, MemOperand(sp, 0 * kPointerSize), Representation::UInteger16());
191 __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
192 __ mov(r2, Operand(65535));
193 __ cmp(r3, r2);
194 __ b(ne, &exit);
195 __ mov(r2, Operand(65535));
196 __ Load(r3, MemOperand(sp, 0 * kPointerSize), Representation::UInteger16());
197 __ cmp(r3, r2);
198 __ b(ne, &exit);
199
200 // Test 4.
201 __ mov(r0, Operand(4)); // Test number.
202 __ mov(r1, Operand(0));
203 __ str(r1, MemOperand(sp, 0 * kPointerSize));
204 __ mov(r2, Operand(-1));
205 __ Store(r2, MemOperand(sp, 0 * kPointerSize), Representation::Integer16());
206 __ ldr(r3, MemOperand(sp, 0 * kPointerSize));
207 __ mov(r2, Operand(65535));
208 __ cmp(r3, r2);
209 __ b(ne, &exit);
210 __ mov(r2, Operand(-1));
211 __ Load(r3, MemOperand(sp, 0 * kPointerSize), Representation::Integer16());
212 __ cmp(r3, r2);
213 __ b(ne, &exit);
214
215 __ mov(r0, Operand(0)); // Success.
216 __ bind(&exit);
217 __ add(sp, sp, Operand(1 * kPointerSize));
218 __ bx(lr);
219
220 CodeDesc desc;
221 masm->GetCode(&desc);
222 // Call the function from C++.
223
224 F0 f = FUNCTION_CAST<F0>(buffer);
225 intptr_t result = reinterpret_cast<intptr_t>(
226 CALL_GENERATED_CODE(f, 4, 0, 0, 0, 0));
227
228 CHECK_EQ(0, result);
229 }
230 135
231 #undef __ 136 #undef __
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