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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_IA32 | 5 #if V8_TARGET_ARCH_IA32 |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/base/division-by-constant.h" | 8 #include "src/base/division-by-constant.h" |
9 #include "src/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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2672 | 2672 |
2673 | 2673 |
2674 void MacroAssembler::Move(Register dst, Register src) { | 2674 void MacroAssembler::Move(Register dst, Register src) { |
2675 if (!dst.is(src)) { | 2675 if (!dst.is(src)) { |
2676 mov(dst, src); | 2676 mov(dst, src); |
2677 } | 2677 } |
2678 } | 2678 } |
2679 | 2679 |
2680 | 2680 |
2681 void MacroAssembler::Move(Register dst, const Immediate& x) { | 2681 void MacroAssembler::Move(Register dst, const Immediate& x) { |
2682 if (x.is_zero()) { | 2682 if (x.is_zero() && RelocInfo::IsNone(x.rmode_)) { |
2683 xor_(dst, dst); // Shorter than mov of 32-bit immediate 0. | 2683 xor_(dst, dst); // Shorter than mov of 32-bit immediate 0. |
2684 } else { | 2684 } else { |
2685 mov(dst, x); | 2685 mov(dst, x); |
2686 } | 2686 } |
2687 } | 2687 } |
2688 | 2688 |
2689 | 2689 |
2690 void MacroAssembler::Move(const Operand& dst, const Immediate& x) { | 2690 void MacroAssembler::Move(const Operand& dst, const Immediate& x) { |
2691 mov(dst, x); | 2691 mov(dst, x); |
2692 } | 2692 } |
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3456 mov(eax, dividend); | 3456 mov(eax, dividend); |
3457 shr(eax, 31); | 3457 shr(eax, 31); |
3458 add(edx, eax); | 3458 add(edx, eax); |
3459 } | 3459 } |
3460 | 3460 |
3461 | 3461 |
3462 } // namespace internal | 3462 } // namespace internal |
3463 } // namespace v8 | 3463 } // namespace v8 |
3464 | 3464 |
3465 #endif // V8_TARGET_ARCH_IA32 | 3465 #endif // V8_TARGET_ARCH_IA32 |
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