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Issue 1474293002: [debugger] Remove code to predict step-in target. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: fix mips Created 5 years 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 // 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_X87 5 #if V8_TARGET_ARCH_X87
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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1952 } 1952 }
1953 1953
1954 1954
1955 void MacroAssembler::FloodFunctionIfStepping(Register fun, Register new_target, 1955 void MacroAssembler::FloodFunctionIfStepping(Register fun, Register new_target,
1956 const ParameterCount& expected, 1956 const ParameterCount& expected,
1957 const ParameterCount& actual) { 1957 const ParameterCount& actual) {
1958 Label skip_flooding; 1958 Label skip_flooding;
1959 ExternalReference debug_step_action = 1959 ExternalReference debug_step_action =
1960 ExternalReference::debug_last_step_action_address(isolate()); 1960 ExternalReference::debug_last_step_action_address(isolate());
1961 cmpb(Operand::StaticVariable(debug_step_action), StepIn); 1961 cmpb(Operand::StaticVariable(debug_step_action), StepIn);
1962 j(not_equal, &skip_flooding); 1962 STATIC_ASSERT(StepFrame > StepIn);
1963 j(less, &skip_flooding);
1963 { 1964 {
1964 FrameScope frame(this, 1965 FrameScope frame(this,
1965 has_frame() ? StackFrame::NONE : StackFrame::INTERNAL); 1966 has_frame() ? StackFrame::NONE : StackFrame::INTERNAL);
1966 if (expected.is_reg()) { 1967 if (expected.is_reg()) {
1967 SmiTag(expected.reg()); 1968 SmiTag(expected.reg());
1968 Push(expected.reg()); 1969 Push(expected.reg());
1969 } 1970 }
1970 if (actual.is_reg()) { 1971 if (actual.is_reg()) {
1971 SmiTag(actual.reg()); 1972 SmiTag(actual.reg());
1972 Push(actual.reg()); 1973 Push(actual.reg());
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3055 mov(eax, dividend); 3056 mov(eax, dividend);
3056 shr(eax, 31); 3057 shr(eax, 31);
3057 add(edx, eax); 3058 add(edx, eax);
3058 } 3059 }
3059 3060
3060 3061
3061 } // namespace internal 3062 } // namespace internal
3062 } // namespace v8 3063 } // namespace v8
3063 3064
3064 #endif // V8_TARGET_ARCH_X87 3065 #endif // V8_TARGET_ARCH_X87
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