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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 161 // clobbered if it the same as the holder register. The function | 161 // clobbered if it the same as the holder register. The function |
| 162 // returns a register containing the holder - either object_reg or | 162 // returns a register containing the holder - either object_reg or |
| 163 // holder_reg. | 163 // holder_reg. |
| 164 Register CheckMaps(JSObject* object, Register object_reg, | 164 Register CheckMaps(JSObject* object, Register object_reg, |
| 165 JSObject* holder, Register holder_reg, | 165 JSObject* holder, Register holder_reg, |
| 166 Register scratch, Label* miss); | 166 Register scratch, Label* miss); |
| 167 | 167 |
| 168 // Generate code for checking access rights - used for security checks | 168 // Generate code for checking access rights - used for security checks |
| 169 // on access to global objects across environments. The holder register | 169 // on access to global objects across environments. The holder register |
| 170 // is left untouched, but the scratch register is clobbered. | 170 // is left untouched, but the scratch register is clobbered. |
| 171 void CheckAccessGlobal(Register holder_reg, Register scratch, Label* miss); | 171 void CheckAccessGlobalProxy(Register holder_reg, |
| 172 Register scratch, |
| 173 Label* miss); |
| 172 | 174 |
| 173 | 175 |
| 174 // --------------------------------------------------------------------------- | 176 // --------------------------------------------------------------------------- |
| 175 // Support functions. | 177 // Support functions. |
| 176 | 178 |
| 177 // Check if result is zero and op is negative. | 179 // Check if result is zero and op is negative. |
| 178 void NegativeZeroTest(Register result, Register op, Label* then_label); | 180 void NegativeZeroTest(Register result, Register op, Label* then_label); |
| 179 | 181 |
| 180 // Check if result is zero and any of op1 and op2 are negative. | 182 // Check if result is zero and any of op1 and op2 are negative. |
| 181 // Register scratch is destroyed, and it must be different from op2. | 183 // Register scratch is destroyed, and it must be different from op2. |
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| 317 Register index, | 319 Register index, |
| 318 ScaleFactor scale, | 320 ScaleFactor scale, |
| 319 int offset) { | 321 int offset) { |
| 320 return Operand(object, index, scale, offset - kHeapObjectTag); | 322 return Operand(object, index, scale, offset - kHeapObjectTag); |
| 321 } | 323 } |
| 322 | 324 |
| 323 | 325 |
| 324 } } // namespace v8::internal | 326 } } // namespace v8::internal |
| 325 | 327 |
| 326 #endif // V8_MACRO_ASSEMBLER_IA32_H_ | 328 #endif // V8_MACRO_ASSEMBLER_IA32_H_ |
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