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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 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_IA32 | 7 #if V8_TARGET_ARCH_IA32 |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/base/division-by-constant.h" | 10 #include "src/base/division-by-constant.h" |
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3220 bool neg = (mag.multiplier & (static_cast<uint32_t>(1) << 31)) != 0; | 3220 bool neg = (mag.multiplier & (static_cast<uint32_t>(1) << 31)) != 0; |
3221 if (divisor > 0 && neg) add(edx, dividend); | 3221 if (divisor > 0 && neg) add(edx, dividend); |
3222 if (divisor < 0 && !neg && mag.multiplier > 0) sub(edx, dividend); | 3222 if (divisor < 0 && !neg && mag.multiplier > 0) sub(edx, dividend); |
3223 if (mag.shift > 0) sar(edx, mag.shift); | 3223 if (mag.shift > 0) sar(edx, mag.shift); |
3224 mov(eax, dividend); | 3224 mov(eax, dividend); |
3225 shr(eax, 31); | 3225 shr(eax, 31); |
3226 add(edx, eax); | 3226 add(edx, eax); |
3227 } | 3227 } |
3228 | 3228 |
3229 | 3229 |
| 3230 void MacroAssembler::AdaptUnoptimizedFrameForOsrEntry( |
| 3231 int unoptimized_slot_count, Register scratch0, Register scratch1) { |
| 3232 if (unoptimized_slot_count > 0) { |
| 3233 Label loop_start; |
| 3234 lea(scratch0, |
| 3235 Operand(ebp, JavaScriptFrameConstants::kFeedbackVectorOffset)); |
| 3236 bind(&loop_start); |
| 3237 mov(scratch1, Operand(scratch0, -1 * kPointerSize)); |
| 3238 mov(Operand(scratch0, 0), scratch1); |
| 3239 sub(scratch0, Immediate(kPointerSize)); |
| 3240 cmp(scratch0, esp); |
| 3241 j(greater, &loop_start); |
| 3242 } |
| 3243 add(esp, Immediate(kPointerSize)); |
| 3244 } |
3230 } } // namespace v8::internal | 3245 } } // namespace v8::internal |
3231 | 3246 |
3232 #endif // V8_TARGET_ARCH_IA32 | 3247 #endif // V8_TARGET_ARCH_IA32 |
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