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Issue 7834017: MIPS: Minor cleanup change to arguments slots constants. (Closed)
Patch Set: Created 9 years, 3 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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2709 int original_stack = get_register(sp); 2709 int original_stack = get_register(sp);
2710 // Compute position of stack on entry to generated code. 2710 // Compute position of stack on entry to generated code.
2711 int entry_stack = (original_stack - (argument_count - 4) * sizeof(int32_t) 2711 int entry_stack = (original_stack - (argument_count - 4) * sizeof(int32_t)
2712 - kCArgsSlotsSize); 2712 - kCArgsSlotsSize);
2713 if (OS::ActivationFrameAlignment() != 0) { 2713 if (OS::ActivationFrameAlignment() != 0) {
2714 entry_stack &= -OS::ActivationFrameAlignment(); 2714 entry_stack &= -OS::ActivationFrameAlignment();
2715 } 2715 }
2716 // Store remaining arguments on stack, from low to high memory. 2716 // Store remaining arguments on stack, from low to high memory.
2717 intptr_t* stack_argument = reinterpret_cast<intptr_t*>(entry_stack); 2717 intptr_t* stack_argument = reinterpret_cast<intptr_t*>(entry_stack);
2718 for (int i = 4; i < argument_count; i++) { 2718 for (int i = 4; i < argument_count; i++) {
2719 stack_argument[i - 4 + kArgsSlotsNum] = va_arg(parameters, int32_t); 2719 stack_argument[i - 4 + kCArgSlotCount] = va_arg(parameters, int32_t);
2720 } 2720 }
2721 va_end(parameters); 2721 va_end(parameters);
2722 set_register(sp, entry_stack); 2722 set_register(sp, entry_stack);
2723 2723
2724 // Prepare to execute the code at entry. 2724 // Prepare to execute the code at entry.
2725 set_register(pc, reinterpret_cast<int32_t>(entry)); 2725 set_register(pc, reinterpret_cast<int32_t>(entry));
2726 // Put down marker for end of simulation. The simulator will stop simulation 2726 // Put down marker for end of simulation. The simulator will stop simulation
2727 // when the PC reaches this value. By saving the "end simulation" value into 2727 // when the PC reaches this value. By saving the "end simulation" value into
2728 // the LR the simulation stops when returning to this call point. 2728 // the LR the simulation stops when returning to this call point.
2729 set_register(ra, end_sim_pc); 2729 set_register(ra, end_sim_pc);
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2812 } 2812 }
2813 2813
2814 2814
2815 #undef UNSUPPORTED 2815 #undef UNSUPPORTED
2816 2816
2817 } } // namespace v8::internal 2817 } } // namespace v8::internal
2818 2818
2819 #endif // USE_SIMULATOR 2819 #endif // USE_SIMULATOR
2820 2820
2821 #endif // V8_TARGET_ARCH_MIPS 2821 #endif // V8_TARGET_ARCH_MIPS
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