[turbofan] Add support for eager/soft deoptimization reasons.

src/crankshaft/x87/lithium-codegen-x87.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_X87
 
 #include "src/crankshaft/x87/lithium-codegen-x87.h"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 934 matching lines @@
     WriteTranslation(environment, &translation);
     int deoptimization_index = deoptimizations_.length();
     int pc_offset = masm()->pc_offset();
     environment->Register(deoptimization_index,
                           translation.index(),
                           (mode == Safepoint::kLazyDeopt) ? pc_offset : -1);
     deoptimizations_.Add(environment, zone());
   }
 }
 
-
 void LCodeGen::DeoptimizeIf(Condition cc, LInstruction* instr,
-                            Deoptimizer::DeoptReason deopt_reason,
+                            DeoptimizeReason deopt_reason,
                             Deoptimizer::BailoutType bailout_type) {
   LEnvironment* environment = instr->environment();
   RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt);
   DCHECK(environment->HasBeenRegistered());
   int id = environment->deoptimization_index();
   Address entry =
       Deoptimizer::GetDeoptimizationEntry(isolate(), id, bailout_type);
   if (entry == NULL) {
     Abort(kBailoutWasNotPrepared);
     return;
@@ skipping 65 matching lines @@
       jump_table_.Add(table_entry, zone());
     }
     if (cc == no_condition) {
       __ jmp(&jump_table_.last().label);
     } else {
       __ j(cc, &jump_table_.last().label);
     }
   }
 }
 
-
 void LCodeGen::DeoptimizeIf(Condition cc, LInstruction* instr,
-                            Deoptimizer::DeoptReason deopt_reason) {
+                            DeoptimizeReason deopt_reason) {
   Deoptimizer::BailoutType bailout_type = info()->IsStub()
       ? Deoptimizer::LAZY
       : Deoptimizer::EAGER;
   DeoptimizeIf(cc, instr, deopt_reason, bailout_type);
 }
 
 
 void LCodeGen::RecordSafepointWithLazyDeopt(
     LInstruction* instr, SafepointMode safepoint_mode) {
   if (safepoint_mode == RECORD_SIMPLE_SAFEPOINT) {
@@ skipping 120 matching lines @@
   int32_t mask = divisor < 0 ? -(divisor + 1) : (divisor - 1);
   Label dividend_is_not_negative, done;
   if (hmod->CheckFlag(HValue::kLeftCanBeNegative)) {
     __ test(dividend, dividend);
     __ j(not_sign, &dividend_is_not_negative, Label::kNear);
     // Note that this is correct even for kMinInt operands.
     __ neg(dividend);
     __ and_(dividend, mask);
     __ neg(dividend);
     if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) {
-      DeoptimizeIf(zero, instr, Deoptimizer::kMinusZero);
+      DeoptimizeIf(zero, instr, DeoptimizeReason::kMinusZero);
     }
     __ jmp(&done, Label::kNear);
   }
 
   __ bind(&dividend_is_not_negative);
   __ and_(dividend, mask);
   __ bind(&done);
 }
 
 
 void LCodeGen::DoModByConstI(LModByConstI* instr) {
   Register dividend = ToRegister(instr->dividend());
   int32_t divisor = instr->divisor();
   DCHECK(ToRegister(instr->result()).is(eax));
 
   if (divisor == 0) {
-    DeoptimizeIf(no_condition, instr, Deoptimizer::kDivisionByZero);
+    DeoptimizeIf(no_condition, instr, DeoptimizeReason::kDivisionByZero);
     return;
   }
 
   __ TruncatingDiv(dividend, Abs(divisor));
   __ imul(edx, edx, Abs(divisor));
   __ mov(eax, dividend);
   __ sub(eax, edx);
 
   // Check for negative zero.
   HMod* hmod = instr->hydrogen();
   if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) {
     Label remainder_not_zero;
     __ j(not_zero, &remainder_not_zero, Label::kNear);
     __ cmp(dividend, Immediate(0));
-    DeoptimizeIf(less, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(less, instr, DeoptimizeReason::kMinusZero);
     __ bind(&remainder_not_zero);
   }
 }
 
 
 void LCodeGen::DoModI(LModI* instr) {
   HMod* hmod = instr->hydrogen();
 
   Register left_reg = ToRegister(instr->left());
   DCHECK(left_reg.is(eax));
   Register right_reg = ToRegister(instr->right());
   DCHECK(!right_reg.is(eax));
   DCHECK(!right_reg.is(edx));
   Register result_reg = ToRegister(instr->result());
   DCHECK(result_reg.is(edx));
 
   Label done;
   // Check for x % 0, idiv would signal a divide error. We have to
   // deopt in this case because we can't return a NaN.
   if (hmod->CheckFlag(HValue::kCanBeDivByZero)) {
     __ test(right_reg, Operand(right_reg));
-    DeoptimizeIf(zero, instr, Deoptimizer::kDivisionByZero);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kDivisionByZero);
   }
 
   // Check for kMinInt % -1, idiv would signal a divide error. We
   // have to deopt if we care about -0, because we can't return that.
   if (hmod->CheckFlag(HValue::kCanOverflow)) {
     Label no_overflow_possible;
     __ cmp(left_reg, kMinInt);
     __ j(not_equal, &no_overflow_possible, Label::kNear);
     __ cmp(right_reg, -1);
     if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) {
-      DeoptimizeIf(equal, instr, Deoptimizer::kMinusZero);
+      DeoptimizeIf(equal, instr, DeoptimizeReason::kMinusZero);
     } else {
       __ j(not_equal, &no_overflow_possible, Label::kNear);
       __ Move(result_reg, Immediate(0));
       __ jmp(&done, Label::kNear);
     }
     __ bind(&no_overflow_possible);
   }
 
   // Sign extend dividend in eax into edx:eax.
   __ cdq();
 
   // If we care about -0, test if the dividend is <0 and the result is 0.
   if (hmod->CheckFlag(HValue::kBailoutOnMinusZero)) {
     Label positive_left;
     __ test(left_reg, Operand(left_reg));
     __ j(not_sign, &positive_left, Label::kNear);
     __ idiv(right_reg);
     __ test(result_reg, Operand(result_reg));
-    DeoptimizeIf(zero, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kMinusZero);
     __ jmp(&done, Label::kNear);
     __ bind(&positive_left);
   }
   __ idiv(right_reg);
   __ bind(&done);
 }
 
 
 void LCodeGen::DoDivByPowerOf2I(LDivByPowerOf2I* instr) {
   Register dividend = ToRegister(instr->dividend());
   int32_t divisor = instr->divisor();
   Register result = ToRegister(instr->result());
   DCHECK(divisor == kMinInt || base::bits::IsPowerOfTwo32(Abs(divisor)));
   DCHECK(!result.is(dividend));
 
   // Check for (0 / -x) that will produce negative zero.
   HDiv* hdiv = instr->hydrogen();
   if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) {
     __ test(dividend, dividend);
-    DeoptimizeIf(zero, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kMinusZero);
   }
   // Check for (kMinInt / -1).
   if (hdiv->CheckFlag(HValue::kCanOverflow) && divisor == -1) {
     __ cmp(dividend, kMinInt);
-    DeoptimizeIf(zero, instr, Deoptimizer::kOverflow);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kOverflow);
   }
   // Deoptimize if remainder will not be 0.
   if (!hdiv->CheckFlag(HInstruction::kAllUsesTruncatingToInt32) &&
       divisor != 1 && divisor != -1) {
     int32_t mask = divisor < 0 ? -(divisor + 1) : (divisor - 1);
     __ test(dividend, Immediate(mask));
-    DeoptimizeIf(not_zero, instr, Deoptimizer::kLostPrecision);
+    DeoptimizeIf(not_zero, instr, DeoptimizeReason::kLostPrecision);
   }
   __ Move(result, dividend);
   int32_t shift = WhichPowerOf2Abs(divisor);
   if (shift > 0) {
     // The arithmetic shift is always OK, the 'if' is an optimization only.
     if (shift > 1) __ sar(result, 31);
     __ shr(result, 32 - shift);
     __ add(result, dividend);
     __ sar(result, shift);
   }
   if (divisor < 0) __ neg(result);
 }
 
 
 void LCodeGen::DoDivByConstI(LDivByConstI* instr) {
   Register dividend = ToRegister(instr->dividend());
   int32_t divisor = instr->divisor();
   DCHECK(ToRegister(instr->result()).is(edx));
 
   if (divisor == 0) {
-    DeoptimizeIf(no_condition, instr, Deoptimizer::kDivisionByZero);
+    DeoptimizeIf(no_condition, instr, DeoptimizeReason::kDivisionByZero);
     return;
   }
 
   // Check for (0 / -x) that will produce negative zero.
   HDiv* hdiv = instr->hydrogen();
   if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) {
     __ test(dividend, dividend);
-    DeoptimizeIf(zero, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kMinusZero);
   }
 
   __ TruncatingDiv(dividend, Abs(divisor));
   if (divisor < 0) __ neg(edx);
 
   if (!hdiv->CheckFlag(HInstruction::kAllUsesTruncatingToInt32)) {
     __ mov(eax, edx);
     __ imul(eax, eax, divisor);
     __ sub(eax, dividend);
-    DeoptimizeIf(not_equal, instr, Deoptimizer::kLostPrecision);
+    DeoptimizeIf(not_equal, instr, DeoptimizeReason::kLostPrecision);
   }
 }
 
 
 // TODO(svenpanne) Refactor this to avoid code duplication with DoFlooringDivI.
 void LCodeGen::DoDivI(LDivI* instr) {
   HBinaryOperation* hdiv = instr->hydrogen();
   Register dividend = ToRegister(instr->dividend());
   Register divisor = ToRegister(instr->divisor());
   Register remainder = ToRegister(instr->temp());
   DCHECK(dividend.is(eax));
   DCHECK(remainder.is(edx));
   DCHECK(ToRegister(instr->result()).is(eax));
   DCHECK(!divisor.is(eax));
   DCHECK(!divisor.is(edx));
 
   // Check for x / 0.
   if (hdiv->CheckFlag(HValue::kCanBeDivByZero)) {
     __ test(divisor, divisor);
-    DeoptimizeIf(zero, instr, Deoptimizer::kDivisionByZero);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kDivisionByZero);
   }
 
   // Check for (0 / -x) that will produce negative zero.
   if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero)) {
     Label dividend_not_zero;
     __ test(dividend, dividend);
     __ j(not_zero, &dividend_not_zero, Label::kNear);
     __ test(divisor, divisor);
-    DeoptimizeIf(sign, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(sign, instr, DeoptimizeReason::kMinusZero);
     __ bind(&dividend_not_zero);
   }
 
   // Check for (kMinInt / -1).
   if (hdiv->CheckFlag(HValue::kCanOverflow)) {
     Label dividend_not_min_int;
     __ cmp(dividend, kMinInt);
     __ j(not_zero, &dividend_not_min_int, Label::kNear);
     __ cmp(divisor, -1);
-    DeoptimizeIf(zero, instr, Deoptimizer::kOverflow);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kOverflow);
     __ bind(&dividend_not_min_int);
   }
 
   // Sign extend to edx (= remainder).
   __ cdq();
   __ idiv(divisor);
 
   if (!hdiv->CheckFlag(HValue::kAllUsesTruncatingToInt32)) {
     // Deoptimize if remainder is not 0.
     __ test(remainder, remainder);
-    DeoptimizeIf(not_zero, instr, Deoptimizer::kLostPrecision);
+    DeoptimizeIf(not_zero, instr, DeoptimizeReason::kLostPrecision);
   }
 }
 
 
 void LCodeGen::DoFlooringDivByPowerOf2I(LFlooringDivByPowerOf2I* instr) {
   Register dividend = ToRegister(instr->dividend());
   int32_t divisor = instr->divisor();
   DCHECK(dividend.is(ToRegister(instr->result())));
 
   // If the divisor is positive, things are easy: There can be no deopts and we
   // can simply do an arithmetic right shift.
   if (divisor == 1) return;
   int32_t shift = WhichPowerOf2Abs(divisor);
   if (divisor > 1) {
     __ sar(dividend, shift);
     return;
   }
 
   // If the divisor is negative, we have to negate and handle edge cases.
   __ neg(dividend);
   if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) {
-    DeoptimizeIf(zero, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kMinusZero);
   }
 
   // Dividing by -1 is basically negation, unless we overflow.
   if (divisor == -1) {
     if (instr->hydrogen()->CheckFlag(HValue::kLeftCanBeMinInt)) {
-      DeoptimizeIf(overflow, instr, Deoptimizer::kOverflow);
+      DeoptimizeIf(overflow, instr, DeoptimizeReason::kOverflow);
     }
     return;
   }
 
   // If the negation could not overflow, simply shifting is OK.
   if (!instr->hydrogen()->CheckFlag(HValue::kLeftCanBeMinInt)) {
     __ sar(dividend, shift);
     return;
   }
 
   Label not_kmin_int, done;
   __ j(no_overflow, &not_kmin_int, Label::kNear);
   __ mov(dividend, Immediate(kMinInt / divisor));
   __ jmp(&done, Label::kNear);
   __ bind(&not_kmin_int);
   __ sar(dividend, shift);
   __ bind(&done);
 }
 
 
 void LCodeGen::DoFlooringDivByConstI(LFlooringDivByConstI* instr) {
   Register dividend = ToRegister(instr->dividend());
   int32_t divisor = instr->divisor();
   DCHECK(ToRegister(instr->result()).is(edx));
 
   if (divisor == 0) {
-    DeoptimizeIf(no_condition, instr, Deoptimizer::kDivisionByZero);
+    DeoptimizeIf(no_condition, instr, DeoptimizeReason::kDivisionByZero);
     return;
   }
 
   // Check for (0 / -x) that will produce negative zero.
   HMathFloorOfDiv* hdiv = instr->hydrogen();
   if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero) && divisor < 0) {
     __ test(dividend, dividend);
-    DeoptimizeIf(zero, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kMinusZero);
   }
 
   // Easy case: We need no dynamic check for the dividend and the flooring
   // division is the same as the truncating division.
   if ((divisor > 0 && !hdiv->CheckFlag(HValue::kLeftCanBeNegative)) ||
       (divisor < 0 && !hdiv->CheckFlag(HValue::kLeftCanBePositive))) {
     __ TruncatingDiv(dividend, Abs(divisor));
     if (divisor < 0) __ neg(edx);
     return;
   }
@@ skipping 26 matching lines @@
   Register result = ToRegister(instr->result());
   DCHECK(dividend.is(eax));
   DCHECK(remainder.is(edx));
   DCHECK(result.is(eax));
   DCHECK(!divisor.is(eax));
   DCHECK(!divisor.is(edx));
 
   // Check for x / 0.
   if (hdiv->CheckFlag(HValue::kCanBeDivByZero)) {
     __ test(divisor, divisor);
-    DeoptimizeIf(zero, instr, Deoptimizer::kDivisionByZero);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kDivisionByZero);
   }
 
   // Check for (0 / -x) that will produce negative zero.
   if (hdiv->CheckFlag(HValue::kBailoutOnMinusZero)) {
     Label dividend_not_zero;
     __ test(dividend, dividend);
     __ j(not_zero, &dividend_not_zero, Label::kNear);
     __ test(divisor, divisor);
-    DeoptimizeIf(sign, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(sign, instr, DeoptimizeReason::kMinusZero);
     __ bind(&dividend_not_zero);
   }
 
   // Check for (kMinInt / -1).
   if (hdiv->CheckFlag(HValue::kCanOverflow)) {
     Label dividend_not_min_int;
     __ cmp(dividend, kMinInt);
     __ j(not_zero, &dividend_not_min_int, Label::kNear);
     __ cmp(divisor, -1);
-    DeoptimizeIf(zero, instr, Deoptimizer::kOverflow);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kOverflow);
     __ bind(&dividend_not_min_int);
   }
 
   // Sign extend to edx (= remainder).
   __ cdq();
   __ idiv(divisor);
 
   Label done;
   __ test(remainder, remainder);
   __ j(zero, &done, Label::kNear);
@@ skipping 57 matching lines @@
       __ imul(left, left, constant);
     }
   } else {
     if (instr->hydrogen()->representation().IsSmi()) {
       __ SmiUntag(left);
     }
     __ imul(left, ToOperand(right));
   }
 
   if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) {
-    DeoptimizeIf(overflow, instr, Deoptimizer::kOverflow);
+    DeoptimizeIf(overflow, instr, DeoptimizeReason::kOverflow);
   }
 
   if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) {
     // Bail out if the result is supposed to be negative zero.
     Label done;
     __ test(left, Operand(left));
     __ j(not_zero, &done);
     if (right->IsConstantOperand()) {
       if (ToInteger32(LConstantOperand::cast(right)) < 0) {
-        DeoptimizeIf(no_condition, instr, Deoptimizer::kMinusZero);
+        DeoptimizeIf(no_condition, instr, DeoptimizeReason::kMinusZero);
       } else if (ToInteger32(LConstantOperand::cast(right)) == 0) {
         __ cmp(ToRegister(instr->temp()), Immediate(0));
-        DeoptimizeIf(less, instr, Deoptimizer::kMinusZero);
+        DeoptimizeIf(less, instr, DeoptimizeReason::kMinusZero);
       }
     } else {
       // Test the non-zero operand for negative sign.
       __ or_(ToRegister(instr->temp()), ToOperand(right));
-      DeoptimizeIf(sign, instr, Deoptimizer::kMinusZero);
+      DeoptimizeIf(sign, instr, DeoptimizeReason::kMinusZero);
     }
     __ bind(&done);
   }
 }
 
 
 void LCodeGen::DoBitI(LBitI* instr) {
   LOperand* left = instr->left();
   LOperand* right = instr->right();
   DCHECK(left->Equals(instr->result()));
@@ skipping 52 matching lines @@
       case Token::ROR:
         __ ror_cl(ToRegister(left));
         break;
       case Token::SAR:
         __ sar_cl(ToRegister(left));
         break;
       case Token::SHR:
         __ shr_cl(ToRegister(left));
         if (instr->can_deopt()) {
           __ test(ToRegister(left), ToRegister(left));
-          DeoptimizeIf(sign, instr, Deoptimizer::kNegativeValue);
+          DeoptimizeIf(sign, instr, DeoptimizeReason::kNegativeValue);
         }
         break;
       case Token::SHL:
         __ shl_cl(ToRegister(left));
         break;
       default:
         UNREACHABLE();
         break;
     }
   } else {
     int value = ToInteger32(LConstantOperand::cast(right));
     uint8_t shift_count = static_cast<uint8_t>(value & 0x1F);
     switch (instr->op()) {
       case Token::ROR:
         if (shift_count == 0 && instr->can_deopt()) {
           __ test(ToRegister(left), ToRegister(left));
-          DeoptimizeIf(sign, instr, Deoptimizer::kNegativeValue);
+          DeoptimizeIf(sign, instr, DeoptimizeReason::kNegativeValue);
         } else {
           __ ror(ToRegister(left), shift_count);
         }
         break;
       case Token::SAR:
         if (shift_count != 0) {
           __ sar(ToRegister(left), shift_count);
         }
         break;
       case Token::SHR:
         if (shift_count != 0) {
           __ shr(ToRegister(left), shift_count);
         } else if (instr->can_deopt()) {
           __ test(ToRegister(left), ToRegister(left));
-          DeoptimizeIf(sign, instr, Deoptimizer::kNegativeValue);
+          DeoptimizeIf(sign, instr, DeoptimizeReason::kNegativeValue);
         }
         break;
       case Token::SHL:
         if (shift_count != 0) {
           if (instr->hydrogen_value()->representation().IsSmi() &&
               instr->can_deopt()) {
             if (shift_count != 1) {
               __ shl(ToRegister(left), shift_count - 1);
             }
             __ SmiTag(ToRegister(left));
-            DeoptimizeIf(overflow, instr, Deoptimizer::kOverflow);
+            DeoptimizeIf(overflow, instr, DeoptimizeReason::kOverflow);
           } else {
             __ shl(ToRegister(left), shift_count);
           }
         }
         break;
       default:
         UNREACHABLE();
         break;
     }
   }
 }
 
 
 void LCodeGen::DoSubI(LSubI* instr) {
   LOperand* left = instr->left();
   LOperand* right = instr->right();
   DCHECK(left->Equals(instr->result()));
 
   if (right->IsConstantOperand()) {
     __ sub(ToOperand(left),
            ToImmediate(right, instr->hydrogen()->representation()));
   } else {
     __ sub(ToRegister(left), ToOperand(right));
   }
   if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) {
-    DeoptimizeIf(overflow, instr, Deoptimizer::kOverflow);
+    DeoptimizeIf(overflow, instr, DeoptimizeReason::kOverflow);
   }
 }
 
 
 void LCodeGen::DoConstantI(LConstantI* instr) {
   __ Move(ToRegister(instr->result()), Immediate(instr->value()));
 }
 
 
 void LCodeGen::DoConstantS(LConstantS* instr) {
@@ skipping 127 matching lines @@
       __ lea(ToRegister(instr->result()), address);
     }
   } else {
     if (right->IsConstantOperand()) {
       __ add(ToOperand(left),
              ToImmediate(right, instr->hydrogen()->representation()));
     } else {
       __ add(ToRegister(left), ToOperand(right));
     }
     if (instr->hydrogen()->CheckFlag(HValue::kCanOverflow)) {
-      DeoptimizeIf(overflow, instr, Deoptimizer::kOverflow);
+      DeoptimizeIf(overflow, instr, DeoptimizeReason::kOverflow);
     }
   }
 }
 
 
 void LCodeGen::DoMathMinMax(LMathMinMax* instr) {
   LOperand* left = instr->left();
   LOperand* right = instr->right();
   DCHECK(left->Equals(instr->result()));
   HMathMinMax::Operation operation = instr->hydrogen()->operation();
@@ skipping 233 matching lines @@
       }
 
       if (expected.Contains(ToBooleanICStub::SMI)) {
         // Smis: 0 -> false, all other -> true.
         __ test(reg, Operand(reg));
         __ j(equal, instr->FalseLabel(chunk_));
         __ JumpIfSmi(reg, instr->TrueLabel(chunk_));
       } else if (expected.NeedsMap()) {
         // If we need a map later and have a Smi -> deopt.
         __ test(reg, Immediate(kSmiTagMask));
-        DeoptimizeIf(zero, instr, Deoptimizer::kSmi);
+        DeoptimizeIf(zero, instr, DeoptimizeReason::kSmi);
       }
 
       Register map = no_reg;  // Keep the compiler happy.
       if (expected.NeedsMap()) {
         map = ToRegister(instr->temp());
         DCHECK(!map.is(reg));
         __ mov(map, FieldOperand(reg, HeapObject::kMapOffset));
 
         if (expected.CanBeUndetectable()) {
           // Undetectable -> false.
@@ skipping 42 matching lines @@
         __ fld_d(FieldOperand(reg, HeapNumber::kValueOffset));
         __ FCmp();
         __ j(zero, instr->FalseLabel(chunk_));
         __ jmp(instr->TrueLabel(chunk_));
         __ bind(&not_heap_number);
       }
 
       if (!expected.IsGeneric()) {
         // We've seen something for the first time -> deopt.
         // This can only happen if we are not generic already.
-        DeoptimizeIf(no_condition, instr, Deoptimizer::kUnexpectedObject);
+        DeoptimizeIf(no_condition, instr, DeoptimizeReason::kUnexpectedObject);
       }
     }
   }
 }
 
 
 void LCodeGen::EmitGoto(int block) {
   if (!IsNextEmittedBlock(block)) {
     __ jmp(chunk_->GetAssemblyLabel(LookupDestination(block)));
   }
@@ skipping 351 matching lines @@
   }
 
   // Loop through the {object}s prototype chain looking for the {prototype}.
   __ mov(object_map, FieldOperand(object, HeapObject::kMapOffset));
   Label loop;
   __ bind(&loop);
 
   // Deoptimize if the object needs to be access checked.
   __ test_b(FieldOperand(object_map, Map::kBitFieldOffset),
             Immediate(1 << Map::kIsAccessCheckNeeded));
-  DeoptimizeIf(not_zero, instr, Deoptimizer::kAccessCheck);
+  DeoptimizeIf(not_zero, instr, DeoptimizeReason::kAccessCheck);
   // Deoptimize for proxies.
   __ CmpInstanceType(object_map, JS_PROXY_TYPE);
-  DeoptimizeIf(equal, instr, Deoptimizer::kProxy);
+  DeoptimizeIf(equal, instr, DeoptimizeReason::kProxy);
 
   __ mov(object_prototype, FieldOperand(object_map, Map::kPrototypeOffset));
   __ cmp(object_prototype, factory()->null_value());
   EmitFalseBranch(instr, equal);
   __ cmp(object_prototype, prototype);
   EmitTrueBranch(instr, equal);
   __ mov(object_map, FieldOperand(object_prototype, HeapObject::kMapOffset));
   __ jmp(&loop);
 }
 
@@ skipping 100 matching lines @@
 
 
 void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) {
   Register context = ToRegister(instr->context());
   Register result = ToRegister(instr->result());
   __ mov(result, ContextOperand(context, instr->slot_index()));
 
   if (instr->hydrogen()->RequiresHoleCheck()) {
     __ cmp(result, factory()->the_hole_value());
     if (instr->hydrogen()->DeoptimizesOnHole()) {
-      DeoptimizeIf(equal, instr, Deoptimizer::kHole);
+      DeoptimizeIf(equal, instr, DeoptimizeReason::kHole);
     } else {
       Label is_not_hole;
       __ j(not_equal, &is_not_hole, Label::kNear);
       __ mov(result, factory()->undefined_value());
       __ bind(&is_not_hole);
     }
   }
 }
 
 
 void LCodeGen::DoStoreContextSlot(LStoreContextSlot* instr) {
   Register context = ToRegister(instr->context());
   Register value = ToRegister(instr->value());
 
   Label skip_assignment;
 
   Operand target = ContextOperand(context, instr->slot_index());
   if (instr->hydrogen()->RequiresHoleCheck()) {
     __ cmp(target, factory()->the_hole_value());
     if (instr->hydrogen()->DeoptimizesOnHole()) {
-      DeoptimizeIf(equal, instr, Deoptimizer::kHole);
+      DeoptimizeIf(equal, instr, DeoptimizeReason::kHole);
     } else {
       __ j(not_equal, &skip_assignment, Label::kNear);
     }
   }
 
   __ mov(target, value);
   if (instr->hydrogen()->NeedsWriteBarrier()) {
     SmiCheck check_needed =
         instr->hydrogen()->value()->type().IsHeapObject()
             ? OMIT_SMI_CHECK : INLINE_SMI_CHECK;
@@ skipping 70 matching lines @@
   Register function = ToRegister(instr->function());
   Register temp = ToRegister(instr->temp());
   Register result = ToRegister(instr->result());
 
   // Get the prototype or initial map from the function.
   __ mov(result,
          FieldOperand(function, JSFunction::kPrototypeOrInitialMapOffset));
 
   // Check that the function has a prototype or an initial map.
   __ cmp(Operand(result), Immediate(factory()->the_hole_value()));
-  DeoptimizeIf(equal, instr, Deoptimizer::kHole);
+  DeoptimizeIf(equal, instr, DeoptimizeReason::kHole);
 
   // If the function does not have an initial map, we're done.
   Label done;
   __ CmpObjectType(result, MAP_TYPE, temp);
   __ j(not_equal, &done, Label::kNear);
 
   // Get the prototype from the initial map.
   __ mov(result, FieldOperand(result, Map::kPrototypeOffset));
 
   // All done.
@@ skipping 61 matching lines @@
       case UINT16_ELEMENTS:
         __ movzx_w(result, operand);
         break;
       case INT32_ELEMENTS:
         __ mov(result, operand);
         break;
       case UINT32_ELEMENTS:
         __ mov(result, operand);
         if (!instr->hydrogen()->CheckFlag(HInstruction::kUint32)) {
           __ test(result, Operand(result));
-          DeoptimizeIf(negative, instr, Deoptimizer::kNegativeValue);
+          DeoptimizeIf(negative, instr, DeoptimizeReason::kNegativeValue);
         }
         break;
       case FLOAT32_ELEMENTS:
       case FLOAT64_ELEMENTS:
       case FAST_SMI_ELEMENTS:
       case FAST_ELEMENTS:
       case FAST_DOUBLE_ELEMENTS:
       case FAST_HOLEY_SMI_ELEMENTS:
       case FAST_HOLEY_ELEMENTS:
       case FAST_HOLEY_DOUBLE_ELEMENTS:
@@ skipping 11 matching lines @@
 
 
 void LCodeGen::DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr) {
   if (instr->hydrogen()->RequiresHoleCheck()) {
     Operand hole_check_operand = BuildFastArrayOperand(
         instr->elements(), instr->key(),
         instr->hydrogen()->key()->representation(),
         FAST_DOUBLE_ELEMENTS,
         instr->base_offset() + sizeof(kHoleNanLower32));
     __ cmp(hole_check_operand, Immediate(kHoleNanUpper32));
-    DeoptimizeIf(equal, instr, Deoptimizer::kHole);
+    DeoptimizeIf(equal, instr, DeoptimizeReason::kHole);
   }
 
   Operand double_load_operand = BuildFastArrayOperand(
       instr->elements(),
       instr->key(),
       instr->hydrogen()->key()->representation(),
       FAST_DOUBLE_ELEMENTS,
       instr->base_offset());
   X87Mov(ToX87Register(instr->result()), double_load_operand);
 }
 
 
 void LCodeGen::DoLoadKeyedFixedArray(LLoadKeyed* instr) {
   Register result = ToRegister(instr->result());
 
   // Load the result.
   __ mov(result,
          BuildFastArrayOperand(instr->elements(), instr->key(),
                                instr->hydrogen()->key()->representation(),
                                FAST_ELEMENTS, instr->base_offset()));
 
   // Check for the hole value.
   if (instr->hydrogen()->RequiresHoleCheck()) {
     if (IsFastSmiElementsKind(instr->hydrogen()->elements_kind())) {
       __ test(result, Immediate(kSmiTagMask));
-      DeoptimizeIf(not_equal, instr, Deoptimizer::kNotASmi);
+      DeoptimizeIf(not_equal, instr, DeoptimizeReason::kNotASmi);
     } else {
       __ cmp(result, factory()->the_hole_value());
-      DeoptimizeIf(equal, instr, Deoptimizer::kHole);
+      DeoptimizeIf(equal, instr, DeoptimizeReason::kHole);
     }
   } else if (instr->hydrogen()->hole_mode() == CONVERT_HOLE_TO_UNDEFINED) {
     DCHECK(instr->hydrogen()->elements_kind() == FAST_HOLEY_ELEMENTS);
     Label done;
     __ cmp(result, factory()->the_hole_value());
     __ j(not_equal, &done);
     if (info()->IsStub()) {
       // A stub can safely convert the hole to undefined only if the array
       // protector cell contains (Smi) Isolate::kArrayProtectorValid.
       // Otherwise it needs to bail out.
       __ LoadRoot(result, Heap::kArrayProtectorRootIndex);
       __ cmp(FieldOperand(result, PropertyCell::kValueOffset),
              Immediate(Smi::FromInt(Isolate::kArrayProtectorValid)));
-      DeoptimizeIf(not_equal, instr, Deoptimizer::kHole);
+      DeoptimizeIf(not_equal, instr, DeoptimizeReason::kHole);
     }
     __ mov(result, isolate()->factory()->undefined_value());
     __ bind(&done);
   }
 }
 
 
 void LCodeGen::DoLoadKeyed(LLoadKeyed* instr) {
   if (instr->is_fixed_typed_array()) {
     DoLoadKeyedExternalArray(instr);
@@ skipping 129 matching lines @@
   }
 
   // Normal function. Replace undefined or null with global receiver.
   __ cmp(receiver, factory()->null_value());
   __ j(equal, &global_object, Label::kNear);
   __ cmp(receiver, factory()->undefined_value());
   __ j(equal, &global_object, Label::kNear);
 
   // The receiver should be a JS object.
   __ test(receiver, Immediate(kSmiTagMask));
-  DeoptimizeIf(equal, instr, Deoptimizer::kSmi);
+  DeoptimizeIf(equal, instr, DeoptimizeReason::kSmi);
   __ CmpObjectType(receiver, FIRST_JS_RECEIVER_TYPE, scratch);
-  DeoptimizeIf(below, instr, Deoptimizer::kNotAJavaScriptObject);
+  DeoptimizeIf(below, instr, DeoptimizeReason::kNotAJavaScriptObject);
 
   __ jmp(&receiver_ok, Label::kNear);
   __ bind(&global_object);
   __ mov(receiver, FieldOperand(function, JSFunction::kContextOffset));
   __ mov(receiver, ContextOperand(receiver, Context::NATIVE_CONTEXT_INDEX));
   __ mov(receiver, ContextOperand(receiver, Context::GLOBAL_PROXY_INDEX));
   __ bind(&receiver_ok);
 }
 
 
 void LCodeGen::DoApplyArguments(LApplyArguments* instr) {
   Register receiver = ToRegister(instr->receiver());
   Register function = ToRegister(instr->function());
   Register length = ToRegister(instr->length());
   Register elements = ToRegister(instr->elements());
   DCHECK(receiver.is(eax));  // Used for parameter count.
   DCHECK(function.is(edi));  // Required by InvokeFunction.
   DCHECK(ToRegister(instr->result()).is(eax));
 
   // Copy the arguments to this function possibly from the
   // adaptor frame below it.
   const uint32_t kArgumentsLimit = 1 * KB;
   __ cmp(length, kArgumentsLimit);
-  DeoptimizeIf(above, instr, Deoptimizer::kTooManyArguments);
+  DeoptimizeIf(above, instr, DeoptimizeReason::kTooManyArguments);
 
   __ push(receiver);
   __ mov(receiver, length);
 
   // Loop through the arguments pushing them onto the execution
   // stack.
   Label invoke, loop;
   // length is a small non-negative integer, due to the test above.
   __ test(length, Operand(length));
   __ j(zero, &invoke, Label::kNear);
@@ skipping 155 matching lines @@
     }
     generator.AfterCall();
   }
 }
 
 
 void LCodeGen::DoDeferredMathAbsTaggedHeapNumber(LMathAbs* instr) {
   Register input_reg = ToRegister(instr->value());
   __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset),
          factory()->heap_number_map());
-  DeoptimizeIf(not_equal, instr, Deoptimizer::kNotAHeapNumber);
+  DeoptimizeIf(not_equal, instr, DeoptimizeReason::kNotAHeapNumber);
 
   Label slow, allocated, done;
   uint32_t available_regs = eax.bit() | ecx.bit() | edx.bit() | ebx.bit();
   available_regs &= ~input_reg.bit();
   if (instr->context()->IsRegister()) {
     // Make sure that the context isn't overwritten in the AllocateHeapNumber
     // macro below.
     available_regs &= ~ToRegister(instr->context()).bit();
   }
 
@@ skipping 37 matching lines @@
   __ bind(&done);
 }
 
 
 void LCodeGen::EmitIntegerMathAbs(LMathAbs* instr) {
   Register input_reg = ToRegister(instr->value());
   __ test(input_reg, Operand(input_reg));
   Label is_positive;
   __ j(not_sign, &is_positive, Label::kNear);
   __ neg(input_reg);  // Sets flags.
-  DeoptimizeIf(negative, instr, Deoptimizer::kOverflow);
+  DeoptimizeIf(negative, instr, DeoptimizeReason::kOverflow);
   __ bind(&is_positive);
 }
 
 
 void LCodeGen::DoMathAbs(LMathAbs* instr) {
   // Class for deferred case.
   class DeferredMathAbsTaggedHeapNumber final : public LDeferredCode {
    public:
     DeferredMathAbsTaggedHeapNumber(LCodeGen* codegen,
                                     LMathAbs* instr,
@@ skipping 32 matching lines @@
 void LCodeGen::DoMathFloor(LMathFloor* instr) {
   Register output_reg = ToRegister(instr->result());
   X87Register input_reg = ToX87Register(instr->value());
   X87Fxch(input_reg);
 
   Label not_minus_zero, done;
   // Deoptimize on unordered.
   __ fldz();
   __ fld(1);
   __ FCmp();
-  DeoptimizeIf(parity_even, instr, Deoptimizer::kNaN);
+  DeoptimizeIf(parity_even, instr, DeoptimizeReason::kNaN);
   __ j(below, &not_minus_zero, Label::kNear);
 
   if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) {
     // Check for negative zero.
     __ j(not_equal, &not_minus_zero, Label::kNear);
     // +- 0.0.
     __ fld(0);
     __ FXamSign();
-    DeoptimizeIf(not_zero, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(not_zero, instr, DeoptimizeReason::kMinusZero);
     __ Move(output_reg, Immediate(0));
     __ jmp(&done, Label::kFar);
   }
 
   // Positive input.
   // rc=01B, round down.
   __ bind(&not_minus_zero);
   __ fnclex();
   __ X87SetRC(0x0400);
   __ sub(esp, Immediate(kPointerSize));
   __ fist_s(Operand(esp, 0));
   __ pop(output_reg);
   __ X87SetRC(0x0000);
   __ X87CheckIA();
-  DeoptimizeIf(equal, instr, Deoptimizer::kOverflow);
+  DeoptimizeIf(equal, instr, DeoptimizeReason::kOverflow);
   __ fnclex();
   __ X87SetRC(0x0000);
   __ bind(&done);
 }
 
 
 void LCodeGen::DoMathRound(LMathRound* instr) {
   X87Register input_reg = ToX87Register(instr->value());
   Register result = ToRegister(instr->result());
   X87Fxch(input_reg);
@@ skipping 15 matching lines @@
   __ X87SetRC(0x0c00);
   __ sub(esp, Immediate(kPointerSize));
   // Clear exception bits.
   __ fnclex();
   __ fistp_s(MemOperand(esp, 0));
   // Restore round mode.
   __ X87SetRC(0x0000);
   // Check overflow.
   __ X87CheckIA();
   __ pop(result);
-  DeoptimizeIf(equal, instr, Deoptimizer::kConversionOverflow);
+  DeoptimizeIf(equal, instr, DeoptimizeReason::kConversionOverflow);
   __ fnclex();
   // Restore round mode.
   __ X87SetRC(0x0000);
   __ jmp(&done);
 
   __ bind(&below_one_half);
   __ fld_d(Operand::StaticVariable(minus_one_half));
   __ fld(1);
   __ FCmp();
   __ j(carry, &below_minus_one_half);
   // We return 0 for the input range [+0, 0.5[, or [-0.5, 0.5[ if
   // we can ignore the difference between a result of -0 and +0.
   if (instr->hydrogen()->CheckFlag(HValue::kBailoutOnMinusZero)) {
     // If the sign is positive, we return +0.
     __ fld(0);
     __ FXamSign();
-    DeoptimizeIf(not_zero, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(not_zero, instr, DeoptimizeReason::kMinusZero);
   }
   __ Move(result, Immediate(0));
   __ jmp(&done);
 
   __ bind(&below_minus_one_half);
   __ fld(0);
   __ fadd_d(Operand::StaticVariable(one_half));
   // rc=01B, round down.
   __ X87SetRC(0x0400);
   __ sub(esp, Immediate(kPointerSize));
   // Clear exception bits.
   __ fnclex();
   __ fistp_s(MemOperand(esp, 0));
   // Restore round mode.
   __ X87SetRC(0x0000);
   // Check overflow.
   __ X87CheckIA();
   __ pop(result);
-  DeoptimizeIf(equal, instr, Deoptimizer::kConversionOverflow);
+  DeoptimizeIf(equal, instr, DeoptimizeReason::kConversionOverflow);
   __ fnclex();
   // Restore round mode.
   __ X87SetRC(0x0000);
 
   __ bind(&done);
 }
 
 
 void LCodeGen::DoMathFround(LMathFround* instr) {
   X87Register input_reg = ToX87Register(instr->value());
@@ skipping 57 matching lines @@
     __ push(exponent);
     __ fild_s(MemOperand(esp, 0));
     __ pop(exponent);
   } else if (exponent_type.IsTagged()) {
     Register exponent = ToRegister(instr->right());
     Register temp = exponent.is(ecx) ? eax : ecx;
     Label no_deopt, done;
     X87LoadForUsage(base);
     __ JumpIfSmi(exponent, &no_deopt);
     __ CmpObjectType(exponent, HEAP_NUMBER_TYPE, temp);
-    DeoptimizeIf(not_equal, instr, Deoptimizer::kNotAHeapNumber);
+    DeoptimizeIf(not_equal, instr, DeoptimizeReason::kNotAHeapNumber);
     // Heap number(double)
     __ fld_d(FieldOperand(exponent, HeapNumber::kValueOffset));
     __ jmp(&done);
     // SMI
     __ bind(&no_deopt);
     __ SmiUntag(exponent);
     __ push(exponent);
     __ fild_s(MemOperand(esp, 0));
     __ pop(exponent);
     __ bind(&done);
@@ skipping 369 matching lines @@
                        instr->hydrogen()->index()->representation()));
   } else {
     __ cmp(ToRegister(instr->index()), ToOperand(instr->length()));
   }
   if (FLAG_debug_code && instr->hydrogen()->skip_check()) {
     Label done;
     __ j(NegateCondition(cc), &done, Label::kNear);
     __ int3();
     __ bind(&done);
   } else {
-    DeoptimizeIf(cc, instr, Deoptimizer::kOutOfBounds);
+    DeoptimizeIf(cc, instr, DeoptimizeReason::kOutOfBounds);
   }
 }
 
 
 void LCodeGen::DoStoreKeyedExternalArray(LStoreKeyed* instr) {
   ElementsKind elements_kind = instr->elements_kind();
   LOperand* key = instr->key();
   if (!key->IsConstantOperand() &&
       ExternalArrayOpRequiresTemp(instr->hydrogen()->key()->representation(),
                                   elements_kind)) {
@@ skipping 187 matching lines @@
                         .code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) {
   Register object = ToRegister(instr->object());
   Register temp = ToRegister(instr->temp());
   Label no_memento_found;
   __ TestJSArrayForAllocationMemento(object, temp, &no_memento_found);
-  DeoptimizeIf(equal, instr, Deoptimizer::kMementoFound);
+  DeoptimizeIf(equal, instr, DeoptimizeReason::kMementoFound);
   __ bind(&no_memento_found);
 }
 
 
 void LCodeGen::DoMaybeGrowElements(LMaybeGrowElements* instr) {
   class DeferredMaybeGrowElements final : public LDeferredCode {
    public:
     DeferredMaybeGrowElements(LCodeGen* codegen,
                               LMaybeGrowElements* instr,
                               const X87Stack& x87_stack)
@@ skipping 79 matching lines @@
     GrowArrayElementsStub stub(isolate(), instr->hydrogen()->is_js_array(),
                                instr->hydrogen()->kind());
     __ CallStub(&stub);
     RecordSafepointWithLazyDeopt(
         instr, RECORD_SAFEPOINT_WITH_REGISTERS_AND_NO_ARGUMENTS);
     __ StoreToSafepointRegisterSlot(result, result);
   }
 
   // Deopt on smi, which means the elements array changed to dictionary mode.
   __ test(result, Immediate(kSmiTagMask));
-  DeoptimizeIf(equal, instr, Deoptimizer::kSmi);
+  DeoptimizeIf(equal, instr, DeoptimizeReason::kSmi);
 }
 
 
 void LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) {
   Register object_reg = ToRegister(instr->object());
 
   Handle<Map> from_map = instr->original_map();
   Handle<Map> to_map = instr->transitioned_map();
   ElementsKind from_kind = instr->from_kind();
   ElementsKind to_kind = instr->to_kind();
@@ skipping 345 matching lines @@
   __ StoreToSafepointRegisterSlot(reg, eax);
 }
 
 
 void LCodeGen::DoSmiTag(LSmiTag* instr) {
   HChange* hchange = instr->hydrogen();
   Register input = ToRegister(instr->value());
   if (hchange->CheckFlag(HValue::kCanOverflow) &&
       hchange->value()->CheckFlag(HValue::kUint32)) {
     __ test(input, Immediate(0xc0000000));
-    DeoptimizeIf(not_zero, instr, Deoptimizer::kOverflow);
+    DeoptimizeIf(not_zero, instr, DeoptimizeReason::kOverflow);
   }
   __ SmiTag(input);
   if (hchange->CheckFlag(HValue::kCanOverflow) &&
       !hchange->value()->CheckFlag(HValue::kUint32)) {
-    DeoptimizeIf(overflow, instr, Deoptimizer::kOverflow);
+    DeoptimizeIf(overflow, instr, DeoptimizeReason::kOverflow);
   }
 }
 
 
 void LCodeGen::DoSmiUntag(LSmiUntag* instr) {
   LOperand* input = instr->value();
   Register result = ToRegister(input);
   DCHECK(input->IsRegister() && input->Equals(instr->result()));
   if (instr->needs_check()) {
     __ test(result, Immediate(kSmiTagMask));
-    DeoptimizeIf(not_zero, instr, Deoptimizer::kNotASmi);
+    DeoptimizeIf(not_zero, instr, DeoptimizeReason::kNotASmi);
   } else {
     __ AssertSmi(result);
   }
   __ SmiUntag(result);
 }
 
 
 void LCodeGen::EmitNumberUntagDNoSSE2(LNumberUntagD* instr, Register input_reg,
                                       Register temp_reg, X87Register res_reg,
                                       NumberUntagDMode mode) {
   bool can_convert_undefined_to_nan =
       instr->hydrogen()->can_convert_undefined_to_nan();
   bool deoptimize_on_minus_zero = instr->hydrogen()->deoptimize_on_minus_zero();
 
   Label load_smi, done;
 
   X87PrepareToWrite(res_reg);
   if (mode == NUMBER_CANDIDATE_IS_ANY_TAGGED) {
     // Smi check.
     __ JumpIfSmi(input_reg, &load_smi);
 
     // Heap number map check.
     __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset),
            factory()->heap_number_map());
     if (!can_convert_undefined_to_nan) {
-      DeoptimizeIf(not_equal, instr, Deoptimizer::kNotAHeapNumber);
+      DeoptimizeIf(not_equal, instr, DeoptimizeReason::kNotAHeapNumber);
     } else {
       Label heap_number, convert;
       __ j(equal, &heap_number);
 
       // Convert undefined (or hole) to NaN.
       __ cmp(input_reg, factory()->undefined_value());
-      DeoptimizeIf(not_equal, instr, Deoptimizer::kNotAHeapNumberUndefined);
+      DeoptimizeIf(not_equal, instr,
+                   DeoptimizeReason::kNotAHeapNumberUndefined);
 
       __ bind(&convert);
       __ push(Immediate(0xffffffff));
       __ push(Immediate(0x7fffffff));
       __ fld_d(MemOperand(esp, 0));
       __ lea(esp, Operand(esp, kDoubleSize));
       __ jmp(&done, Label::kNear);
 
       __ bind(&heap_number);
     }
     // Heap number to x87 conversion.
     __ fld_d(FieldOperand(input_reg, HeapNumber::kValueOffset));
     if (deoptimize_on_minus_zero) {
       __ fldz();
       __ FCmp();
       __ fld_d(FieldOperand(input_reg, HeapNumber::kValueOffset));
       __ j(not_zero, &done, Label::kNear);
 
       // Use general purpose registers to check if we have -0.0
       __ mov(temp_reg, FieldOperand(input_reg, HeapNumber::kExponentOffset));
       __ test(temp_reg, Immediate(HeapNumber::kSignMask));
       __ j(zero, &done, Label::kNear);
 
       // Pop FPU stack before deoptimizing.
       __ fstp(0);
-      DeoptimizeIf(not_zero, instr, Deoptimizer::kMinusZero);
+      DeoptimizeIf(not_zero, instr, DeoptimizeReason::kMinusZero);
     }
     __ jmp(&done, Label::kNear);
   } else {
     DCHECK(mode == NUMBER_CANDIDATE_IS_SMI);
   }
 
   __ bind(&load_smi);
   // Clobbering a temp is faster than re-tagging the
   // input register since we avoid dependencies.
   __ mov(temp_reg, input_reg);
@@ skipping 33 matching lines @@
 
     __ bind(&check_bools);
     __ cmp(input_reg, factory()->true_value());
     __ j(not_equal, &check_false, Label::kNear);
     __ Move(input_reg, Immediate(1));
     __ jmp(done);
 
     __ bind(&check_false);
     __ cmp(input_reg, factory()->false_value());
     DeoptimizeIf(not_equal, instr,
-                 Deoptimizer::kNotAHeapNumberUndefinedBoolean);
+                 DeoptimizeReason::kNotAHeapNumberUndefinedBoolean);
     __ Move(input_reg, Immediate(0));
   } else {
     // TODO(olivf) Converting a number on the fpu is actually quite slow. We
     // should first try a fast conversion and then bailout to this slow case.
     __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset),
            isolate()->factory()->heap_number_map());
-    DeoptimizeIf(not_equal, instr, Deoptimizer::kNotAHeapNumber);
+    DeoptimizeIf(not_equal, instr, DeoptimizeReason::kNotAHeapNumber);
 
     __ sub(esp, Immediate(kPointerSize));
     __ fld_d(FieldOperand(input_reg, HeapNumber::kValueOffset));
 
     if (instr->hydrogen()->GetMinusZeroMode() == FAIL_ON_MINUS_ZERO) {
       Label no_precision_lost, not_nan, zero_check;
       __ fld(0);
 
       __ fist_s(MemOperand(esp, 0));
       __ fild_s(MemOperand(esp, 0));
       __ FCmp();
       __ pop(input_reg);
 
       __ j(equal, &no_precision_lost, Label::kNear);
       __ fstp(0);
-      DeoptimizeIf(no_condition, instr, Deoptimizer::kLostPrecision);
+      DeoptimizeIf(no_condition, instr, DeoptimizeReason::kLostPrecision);
       __ bind(&no_precision_lost);
 
       __ j(parity_odd, &not_nan);
       __ fstp(0);
-      DeoptimizeIf(no_condition, instr, Deoptimizer::kNaN);
+      DeoptimizeIf(no_condition, instr, DeoptimizeReason::kNaN);
       __ bind(&not_nan);
 
       __ test(input_reg, Operand(input_reg));
       __ j(zero, &zero_check, Label::kNear);
       __ fstp(0);
       __ jmp(done);
 
       __ bind(&zero_check);
       // To check for minus zero, we load the value again as float, and check
       // if that is still 0.
       __ sub(esp, Immediate(kPointerSize));
       __ fstp_s(Operand(esp, 0));
       __ pop(input_reg);
       __ test(input_reg, Operand(input_reg));
-      DeoptimizeIf(not_zero, instr, Deoptimizer::kMinusZero);
+      DeoptimizeIf(not_zero, instr, DeoptimizeReason::kMinusZero);
     } else {
       __ fist_s(MemOperand(esp, 0));
       __ fild_s(MemOperand(esp, 0));
       __ FCmp();
       __ pop(input_reg);
-      DeoptimizeIf(not_equal, instr, Deoptimizer::kLostPrecision);
-      DeoptimizeIf(parity_even, instr, Deoptimizer::kNaN);
+      DeoptimizeIf(not_equal, instr, DeoptimizeReason::kLostPrecision);
+      DeoptimizeIf(parity_even, instr, DeoptimizeReason::kNaN);
     }
   }
 }
 
 
 void LCodeGen::DoTaggedToI(LTaggedToI* instr) {
   class DeferredTaggedToI final : public LDeferredCode {
    public:
     DeferredTaggedToI(LCodeGen* codegen,
                       LTaggedToI* instr,
@@ skipping 60 matching lines @@
     X87Fxch(input_reg);
     __ TruncateX87TOSToI(result_reg);
   } else {
     Label lost_precision, is_nan, minus_zero, done;
     X87Register input_reg = ToX87Register(input);
     X87Fxch(input_reg);
     __ X87TOSToI(result_reg, instr->hydrogen()->GetMinusZeroMode(),
                  &lost_precision, &is_nan, &minus_zero);
     __ jmp(&done);
     __ bind(&lost_precision);
-    DeoptimizeIf(no_condition, instr, Deoptimizer::kLostPrecision);
+    DeoptimizeIf(no_condition, instr, DeoptimizeReason::kLostPrecision);
     __ bind(&is_nan);
-    DeoptimizeIf(no_condition, instr, Deoptimizer::kNaN);
+    DeoptimizeIf(no_condition, instr, DeoptimizeReason::kNaN);
     __ bind(&minus_zero);
-    DeoptimizeIf(no_condition, instr, Deoptimizer::kMinusZero);
+    DeoptimizeIf(no_condition, instr, DeoptimizeReason::kMinusZero);
     __ bind(&done);
   }
 }
 
 
 void LCodeGen::DoDoubleToSmi(LDoubleToSmi* instr) {
   LOperand* input = instr->value();
   DCHECK(input->IsDoubleRegister());
   LOperand* result = instr->result();
   DCHECK(result->IsRegister());
   Register result_reg = ToRegister(result);
 
   Label lost_precision, is_nan, minus_zero, done;
   X87Register input_reg = ToX87Register(input);
   X87Fxch(input_reg);
   __ X87TOSToI(result_reg, instr->hydrogen()->GetMinusZeroMode(),
                &lost_precision, &is_nan, &minus_zero);
   __ jmp(&done);
   __ bind(&lost_precision);
-  DeoptimizeIf(no_condition, instr, Deoptimizer::kLostPrecision);
+  DeoptimizeIf(no_condition, instr, DeoptimizeReason::kLostPrecision);
   __ bind(&is_nan);
-  DeoptimizeIf(no_condition, instr, Deoptimizer::kNaN);
+  DeoptimizeIf(no_condition, instr, DeoptimizeReason::kNaN);
   __ bind(&minus_zero);
-  DeoptimizeIf(no_condition, instr, Deoptimizer::kMinusZero);
+  DeoptimizeIf(no_condition, instr, DeoptimizeReason::kMinusZero);
   __ bind(&done);
   __ SmiTag(result_reg);
-  DeoptimizeIf(overflow, instr, Deoptimizer::kOverflow);
+  DeoptimizeIf(overflow, instr, DeoptimizeReason::kOverflow);
 }
 
 
 void LCodeGen::DoCheckSmi(LCheckSmi* instr) {
   LOperand* input = instr->value();
   __ test(ToOperand(input), Immediate(kSmiTagMask));
-  DeoptimizeIf(not_zero, instr, Deoptimizer::kNotASmi);
+  DeoptimizeIf(not_zero, instr, DeoptimizeReason::kNotASmi);
 }
 
 
 void LCodeGen::DoCheckNonSmi(LCheckNonSmi* instr) {
   if (!instr->hydrogen()->value()->type().IsHeapObject()) {
     LOperand* input = instr->value();
     __ test(ToOperand(input), Immediate(kSmiTagMask));
-    DeoptimizeIf(zero, instr, Deoptimizer::kSmi);
+    DeoptimizeIf(zero, instr, DeoptimizeReason::kSmi);
   }
 }
 
 
 void LCodeGen::DoCheckArrayBufferNotNeutered(
     LCheckArrayBufferNotNeutered* instr) {
   Register view = ToRegister(instr->view());
   Register scratch = ToRegister(instr->scratch());
 
   __ mov(scratch, FieldOperand(view, JSArrayBufferView::kBufferOffset));
   __ test_b(FieldOperand(scratch, JSArrayBuffer::kBitFieldOffset),
             Immediate(1 << JSArrayBuffer::WasNeutered::kShift));
-  DeoptimizeIf(not_zero, instr, Deoptimizer::kOutOfBounds);
+  DeoptimizeIf(not_zero, instr, DeoptimizeReason::kOutOfBounds);
 }
 
 
 void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) {
   Register input = ToRegister(instr->value());
   Register temp = ToRegister(instr->temp());
 
   __ mov(temp, FieldOperand(input, HeapObject::kMapOffset));
 
   if (instr->hydrogen()->is_interval_check()) {
     InstanceType first;
     InstanceType last;
     instr->hydrogen()->GetCheckInterval(&first, &last);
 
     __ cmpb(FieldOperand(temp, Map::kInstanceTypeOffset), Immediate(first));
 
     // If there is only one type in the interval check for equality.
     if (first == last) {
-      DeoptimizeIf(not_equal, instr, Deoptimizer::kWrongInstanceType);
+      DeoptimizeIf(not_equal, instr, DeoptimizeReason::kWrongInstanceType);
     } else {
-      DeoptimizeIf(below, instr, Deoptimizer::kWrongInstanceType);
+      DeoptimizeIf(below, instr, DeoptimizeReason::kWrongInstanceType);
       // Omit check for the last type.
       if (last != LAST_TYPE) {
         __ cmpb(FieldOperand(temp, Map::kInstanceTypeOffset), Immediate(last));
-        DeoptimizeIf(above, instr, Deoptimizer::kWrongInstanceType);
+        DeoptimizeIf(above, instr, DeoptimizeReason::kWrongInstanceType);
       }
     }
   } else {
     uint8_t mask;
     uint8_t tag;
     instr->hydrogen()->GetCheckMaskAndTag(&mask, &tag);
 
     if (base::bits::IsPowerOfTwo32(mask)) {
       DCHECK(tag == 0 || base::bits::IsPowerOfTwo32(tag));
       __ test_b(FieldOperand(temp, Map::kInstanceTypeOffset), Immediate(mask));
       DeoptimizeIf(tag == 0 ? not_zero : zero, instr,
-                   Deoptimizer::kWrongInstanceType);
+                   DeoptimizeReason::kWrongInstanceType);
     } else {
       __ movzx_b(temp, FieldOperand(temp, Map::kInstanceTypeOffset));
       __ and_(temp, mask);
       __ cmp(temp, tag);
-      DeoptimizeIf(not_equal, instr, Deoptimizer::kWrongInstanceType);
+      DeoptimizeIf(not_equal, instr, DeoptimizeReason::kWrongInstanceType);
     }
   }
 }
 
 
 void LCodeGen::DoCheckValue(LCheckValue* instr) {
   Handle<HeapObject> object = instr->hydrogen()->object().handle();
   if (instr->hydrogen()->object_in_new_space()) {
     Register reg = ToRegister(instr->value());
     Handle<Cell> cell = isolate()->factory()->NewCell(object);
     __ cmp(reg, Operand::ForCell(cell));
   } else {
     Operand operand = ToOperand(instr->value());
     __ cmp(operand, object);
   }
-  DeoptimizeIf(not_equal, instr, Deoptimizer::kValueMismatch);
+  DeoptimizeIf(not_equal, instr, DeoptimizeReason::kValueMismatch);
 }
 
 
 void LCodeGen::DoDeferredInstanceMigration(LCheckMaps* instr, Register object) {
   {
     PushSafepointRegistersScope scope(this);
     __ push(object);
     __ xor_(esi, esi);
     __ CallRuntimeSaveDoubles(Runtime::kTryMigrateInstance);
     RecordSafepointWithRegisters(
         instr->pointer_map(), 1, Safepoint::kNoLazyDeopt);
 
     __ test(eax, Immediate(kSmiTagMask));
   }
-  DeoptimizeIf(zero, instr, Deoptimizer::kInstanceMigrationFailed);
+  DeoptimizeIf(zero, instr, DeoptimizeReason::kInstanceMigrationFailed);
 }
 
 
 void LCodeGen::DoCheckMaps(LCheckMaps* instr) {
   class DeferredCheckMaps final : public LDeferredCode {
    public:
     DeferredCheckMaps(LCodeGen* codegen,
                       LCheckMaps* instr,
                       Register object,
                       const X87Stack& x87_stack)
@@ skipping 36 matching lines @@
     Handle<Map> map = maps->at(i).handle();
     __ CompareMap(reg, map);
     __ j(equal, &success, Label::kNear);
   }
 
   Handle<Map> map = maps->at(maps->size() - 1).handle();
   __ CompareMap(reg, map);
   if (instr->hydrogen()->HasMigrationTarget()) {
     __ j(not_equal, deferred->entry());
   } else {
-    DeoptimizeIf(not_equal, instr, Deoptimizer::kWrongMap);
+    DeoptimizeIf(not_equal, instr, DeoptimizeReason::kWrongMap);
   }
 
   __ bind(&success);
 }
 
 
 void LCodeGen::DoClampDToUint8(LClampDToUint8* instr) {
   X87Register value_reg = ToX87Register(instr->unclamped());
   Register result_reg = ToRegister(instr->result());
   X87Fxch(value_reg);
@@ skipping 20 matching lines @@
   __ JumpIfSmi(input_reg, &is_smi);
 
   // Check for heap number
   __ cmp(FieldOperand(input_reg, HeapObject::kMapOffset),
          factory()->heap_number_map());
   __ j(equal, &heap_number, Label::kNear);
 
   // Check for undefined. Undefined is converted to zero for clamping
   // conversions.
   __ cmp(input_reg, factory()->undefined_value());
-  DeoptimizeIf(not_equal, instr, Deoptimizer::kNotAHeapNumberUndefined);
+  DeoptimizeIf(not_equal, instr, DeoptimizeReason::kNotAHeapNumberUndefined);
   __ jmp(&zero_result, Label::kNear);
 
   // Heap number
   __ bind(&heap_number);
 
   // Surprisingly, all of the hand-crafted bit-manipulations below are much
   // faster than the x86 FPU built-in instruction, especially since "banker's
   // rounding" would be additionally very expensive
 
   // Get exponent word.
@@ skipping 495 matching lines @@
   __ jmp(&done, Label::kNear);
 
   __ bind(&load_cache);
   __ LoadInstanceDescriptors(map, result);
   __ mov(result,
          FieldOperand(result, DescriptorArray::kEnumCacheOffset));
   __ mov(result,
          FieldOperand(result, FixedArray::SizeFor(instr->idx())));
   __ bind(&done);
   __ test(result, result);
-  DeoptimizeIf(equal, instr, Deoptimizer::kNoCache);
+  DeoptimizeIf(equal, instr, DeoptimizeReason::kNoCache);
 }
 
 
 void LCodeGen::DoCheckMapValue(LCheckMapValue* instr) {
   Register object = ToRegister(instr->value());
   __ cmp(ToRegister(instr->map()),
          FieldOperand(object, HeapObject::kMapOffset));
-  DeoptimizeIf(not_equal, instr, Deoptimizer::kWrongMap);
+  DeoptimizeIf(not_equal, instr, DeoptimizeReason::kWrongMap);
 }
 
 
 void LCodeGen::DoDeferredLoadMutableDouble(LLoadFieldByIndex* instr,
                                            Register object,
                                            Register index) {
   PushSafepointRegistersScope scope(this);
   __ push(object);
   __ push(index);
   __ xor_(esi, esi);
@@ skipping 60 matching lines @@
   __ bind(deferred->exit());
   __ bind(&done);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X87