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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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| 2835 // Lower 2 bits of r2 are 0 iff r0 has failure tag. | 2835 // Lower 2 bits of r2 are 0 iff r0 has failure tag. |
| 2836 __ add(r2, r0, Operand(1)); | 2836 __ add(r2, r0, Operand(1)); |
| 2837 __ tst(r2, Operand(kFailureTagMask)); | 2837 __ tst(r2, Operand(kFailureTagMask)); |
| 2838 __ b(eq, &failure_returned); | 2838 __ b(eq, &failure_returned); |
| 2839 | 2839 |
| 2840 // Exit C frame and return. | 2840 // Exit C frame and return. |
| 2841 // r0:r1: result | 2841 // r0:r1: result |
| 2842 // sp: stack pointer | 2842 // sp: stack pointer |
| 2843 // fp: frame pointer | 2843 // fp: frame pointer |
| 2844 // Callee-saved register r4 still holds argc. | 2844 // Callee-saved register r4 still holds argc. |
| 2845 __ LeaveExitFrame(save_doubles_, r4, true); | 2845 __ LeaveExitFrame(save_doubles_, r4); |
| 2846 __ mov(pc, lr); | 2846 __ mov(pc, lr); |
| 2847 | 2847 |
| 2848 // check if we should retry or throw exception | 2848 // check if we should retry or throw exception |
| 2849 Label retry; | 2849 Label retry; |
| 2850 __ bind(&failure_returned); | 2850 __ bind(&failure_returned); |
| 2851 STATIC_ASSERT(Failure::RETRY_AFTER_GC == 0); | 2851 STATIC_ASSERT(Failure::RETRY_AFTER_GC == 0); |
| 2852 __ tst(r0, Operand(((1 << kFailureTypeTagSize) - 1) << kFailureTagSize)); | 2852 __ tst(r0, Operand(((1 << kFailureTypeTagSize) - 1) << kFailureTagSize)); |
| 2853 __ b(eq, &retry); | 2853 __ b(eq, &retry); |
| 2854 | 2854 |
| 2855 // Special handling of out of memory exceptions. | 2855 // Special handling of out of memory exceptions. |
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| 4064 // Already there | 4064 // Already there |
| 4065 | 4065 |
| 4066 // Argument 1 (r0): Subject string. | 4066 // Argument 1 (r0): Subject string. |
| 4067 __ mov(r0, subject); | 4067 __ mov(r0, subject); |
| 4068 | 4068 |
| 4069 // Locate the code entry and call it. | 4069 // Locate the code entry and call it. |
| 4070 __ add(r7, r7, Operand(Code::kHeaderSize - kHeapObjectTag)); | 4070 __ add(r7, r7, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 4071 DirectCEntryStub stub; | 4071 DirectCEntryStub stub; |
| 4072 stub.GenerateCall(masm, r7); | 4072 stub.GenerateCall(masm, r7); |
| 4073 | 4073 |
| 4074 __ LeaveExitFrame(false, no_reg, true); | 4074 __ LeaveExitFrame(false, no_reg); |
| 4075 | 4075 |
| 4076 // r0: result | 4076 // r0: result |
| 4077 // subject: subject string (callee saved) | 4077 // subject: subject string (callee saved) |
| 4078 // regexp_data: RegExp data (callee saved) | 4078 // regexp_data: RegExp data (callee saved) |
| 4079 // last_match_info_elements: Last match info elements (callee saved) | 4079 // last_match_info_elements: Last match info elements (callee saved) |
| 4080 // Check the result. | 4080 // Check the result. |
| 4081 Label success; | 4081 Label success; |
| 4082 __ cmp(r0, Operand(1)); | 4082 __ cmp(r0, Operand(1)); |
| 4083 // We expect exactly one result since we force the called regexp to behave | 4083 // We expect exactly one result since we force the called regexp to behave |
| 4084 // as non-global. | 4084 // as non-global. |
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| 7154 __ bind(&fast_elements_case); | 7154 __ bind(&fast_elements_case); |
| 7155 GenerateCase(masm, FAST_ELEMENTS); | 7155 GenerateCase(masm, FAST_ELEMENTS); |
| 7156 } | 7156 } |
| 7157 | 7157 |
| 7158 | 7158 |
| 7159 #undef __ | 7159 #undef __ |
| 7160 | 7160 |
| 7161 } } // namespace v8::internal | 7161 } } // namespace v8::internal |
| 7162 | 7162 |
| 7163 #endif // V8_TARGET_ARCH_ARM | 7163 #endif // V8_TARGET_ARCH_ARM |
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