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Issue 10778029: Allow uint32 value on optimized frames if they are consumed by safe operations. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: arm and x64 ports Created 8 years, 4 months ago
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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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2359 } 2359 }
2360 break; 2360 break;
2361 } 2361 }
2362 2362
2363 case CMN: { 2363 case CMN: {
2364 if (instr->HasS()) { 2364 if (instr->HasS()) {
2365 // Format(instr, "cmn'cond 'rn, 'shift_rm"); 2365 // Format(instr, "cmn'cond 'rn, 'shift_rm");
2366 // Format(instr, "cmn'cond 'rn, 'imm"); 2366 // Format(instr, "cmn'cond 'rn, 'imm");
2367 alu_out = rn_val + shifter_operand; 2367 alu_out = rn_val + shifter_operand;
2368 SetNZFlags(alu_out); 2368 SetNZFlags(alu_out);
2369 SetCFlag(!CarryFrom(rn_val, shifter_operand)); 2369 SetCFlag(CarryFrom(rn_val, shifter_operand));
2370 SetVFlag(OverflowFrom(alu_out, rn_val, shifter_operand, true)); 2370 SetVFlag(OverflowFrom(alu_out, rn_val, shifter_operand, true));
2371 } else { 2371 } else {
2372 // Other instructions matching this pattern are handled in the 2372 // Other instructions matching this pattern are handled in the
2373 // miscellaneous instructions part above. 2373 // miscellaneous instructions part above.
2374 UNREACHABLE(); 2374 UNREACHABLE();
2375 } 2375 }
2376 break; 2376 break;
2377 } 2377 }
2378 2378
2379 case ORR: { 2379 case ORR: {
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3384 uintptr_t address = *stack_slot; 3384 uintptr_t address = *stack_slot;
3385 set_register(sp, current_sp + sizeof(uintptr_t)); 3385 set_register(sp, current_sp + sizeof(uintptr_t));
3386 return address; 3386 return address;
3387 } 3387 }
3388 3388
3389 } } // namespace v8::internal 3389 } } // namespace v8::internal
3390 3390
3391 #endif // USE_SIMULATOR 3391 #endif // USE_SIMULATOR
3392 3392
3393 #endif // V8_TARGET_ARCH_ARM 3393 #endif // V8_TARGET_ARCH_ARM
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