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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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3490 add(result, result, Operand(kPCRegOffset)); | 3490 add(result, result, Operand(kPCRegOffset)); |
3491 } | 3491 } |
3492 | 3492 |
3493 | 3493 |
3494 void MacroAssembler::CheckPageFlag( | 3494 void MacroAssembler::CheckPageFlag( |
3495 Register object, | 3495 Register object, |
3496 Register scratch, | 3496 Register scratch, |
3497 int mask, | 3497 int mask, |
3498 Condition cc, | 3498 Condition cc, |
3499 Label* condition_met) { | 3499 Label* condition_met) { |
3500 and_(scratch, object, Operand(~Page::kPageAlignmentMask)); | 3500 Move(scratch, object); |
Please use jfb - chromium.org
2012/10/09 13:09:21
Actually, let me retract my LGTM: this will genera
Michael Starzinger
2012/10/09 13:36:20
Done. You are right, I totally missed that.
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3501 Bfc(scratch, 0, kPageSizeBits); | |
m.m.capewell
2012/10/09 13:25:27
A more generic way of doing this, possibly with sl
Michael Starzinger
2012/10/09 13:54:34
So just to clarify. Do you think that the two-shif
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3501 ldr(scratch, MemOperand(scratch, MemoryChunk::kFlagsOffset)); | 3502 ldr(scratch, MemOperand(scratch, MemoryChunk::kFlagsOffset)); |
3502 tst(scratch, Operand(mask)); | 3503 tst(scratch, Operand(mask)); |
3503 b(cc, condition_met); | 3504 b(cc, condition_met); |
3504 } | 3505 } |
3505 | 3506 |
3506 | 3507 |
3507 void MacroAssembler::JumpIfBlack(Register object, | 3508 void MacroAssembler::JumpIfBlack(Register object, |
3508 Register scratch0, | 3509 Register scratch0, |
3509 Register scratch1, | 3510 Register scratch1, |
3510 Label* on_black) { | 3511 Label* on_black) { |
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3854 void CodePatcher::EmitCondition(Condition cond) { | 3855 void CodePatcher::EmitCondition(Condition cond) { |
3855 Instr instr = Assembler::instr_at(masm_.pc_); | 3856 Instr instr = Assembler::instr_at(masm_.pc_); |
3856 instr = (instr & ~kCondMask) | cond; | 3857 instr = (instr & ~kCondMask) | cond; |
3857 masm_.emit(instr); | 3858 masm_.emit(instr); |
3858 } | 3859 } |
3859 | 3860 |
3860 | 3861 |
3861 } } // namespace v8::internal | 3862 } } // namespace v8::internal |
3862 | 3863 |
3863 #endif // V8_TARGET_ARCH_ARM | 3864 #endif // V8_TARGET_ARCH_ARM |
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