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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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2346 ExternalReference::handle_scope_limit_address(isolate()), | 2346 ExternalReference::handle_scope_limit_address(isolate()), |
2347 next_address); | 2347 next_address); |
2348 const int kLevelOffset = AddressOffset( | 2348 const int kLevelOffset = AddressOffset( |
2349 ExternalReference::handle_scope_level_address(isolate()), | 2349 ExternalReference::handle_scope_level_address(isolate()), |
2350 next_address); | 2350 next_address); |
2351 | 2351 |
2352 ASSERT(function_address.is(r1) || function_address.is(r2)); | 2352 ASSERT(function_address.is(r1) || function_address.is(r2)); |
2353 | 2353 |
2354 Label profiler_disabled; | 2354 Label profiler_disabled; |
2355 Label end_profiler_check; | 2355 Label end_profiler_check; |
2356 bool* is_profiling_flag = | 2356 mov(r9, Operand(ExternalReference::is_profiling_address(isolate()))); |
2357 isolate()->cpu_profiler()->is_profiling_address(); | |
2358 STATIC_ASSERT(sizeof(*is_profiling_flag) == 1); | |
2359 mov(r9, Operand(reinterpret_cast<int32_t>(is_profiling_flag))); | |
2360 ldrb(r9, MemOperand(r9, 0)); | 2357 ldrb(r9, MemOperand(r9, 0)); |
2361 cmp(r9, Operand(0)); | 2358 cmp(r9, Operand(0)); |
2362 b(eq, &profiler_disabled); | 2359 b(eq, &profiler_disabled); |
2363 | 2360 |
2364 // Additional parameter is the address of the actual callback. | 2361 // Additional parameter is the address of the actual callback. |
2365 mov(r3, Operand(thunk_ref)); | 2362 mov(r3, Operand(thunk_ref)); |
2366 jmp(&end_profiler_check); | 2363 jmp(&end_profiler_check); |
2367 | 2364 |
2368 bind(&profiler_disabled); | 2365 bind(&profiler_disabled); |
2369 Move(r3, function_address); | 2366 Move(r3, function_address); |
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4090 sub(result, result, Operand(dividend)); | 4087 sub(result, result, Operand(dividend)); |
4091 } | 4088 } |
4092 if (ms.shift() > 0) mov(result, Operand(result, ASR, ms.shift())); | 4089 if (ms.shift() > 0) mov(result, Operand(result, ASR, ms.shift())); |
4093 add(result, result, Operand(dividend, LSR, 31)); | 4090 add(result, result, Operand(dividend, LSR, 31)); |
4094 } | 4091 } |
4095 | 4092 |
4096 | 4093 |
4097 } } // namespace v8::internal | 4094 } } // namespace v8::internal |
4098 | 4095 |
4099 #endif // V8_TARGET_ARCH_ARM | 4096 #endif // V8_TARGET_ARCH_ARM |
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