Rename ASSERT* to DCHECK*.

src/mips64/code-stubs-mips64.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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
@@ skipping 339 matching lines @@
 
 void HydrogenCodeStub::GenerateLightweightMiss(MacroAssembler* masm) {
   // Update the static counter each time a new code stub is generated.
   isolate()->counters()->code_stubs()->Increment();
 
   CodeStubInterfaceDescriptor* descriptor = GetInterfaceDescriptor();
   int param_count = descriptor->GetEnvironmentParameterCount();
   {
     // Call the runtime system in a fresh internal frame.
     FrameScope scope(masm, StackFrame::INTERNAL);
-    ASSERT((param_count == 0) ||
+    DCHECK((param_count == 0) ||
            a0.is(descriptor->GetEnvironmentParameterRegister(param_count - 1)));
     // Push arguments, adjust sp.
     __ Dsubu(sp, sp, Operand(param_count * kPointerSize));
     for (int i = 0; i < param_count; ++i) {
       // Store argument to stack.
       __ sd(descriptor->GetEnvironmentParameterRegister(i),
             MemOperand(sp, (param_count-1-i) * kPointerSize));
     }
     ExternalReference miss = descriptor->miss_handler();
     __ CallExternalReference(miss, param_count);
@@ skipping 267 matching lines @@
   __ li(scratch_, Operand(non_smi_exponent));
   // Set the sign bit in scratch_ if the value was negative.
   __ or_(scratch_, scratch_, sign_);
   // Subtract from 0 if the value was negative.
   __ subu(at, zero_reg, the_int_);
   __ Movn(the_int_, at, sign_);
   // We should be masking the implict first digit of the mantissa away here,
   // but it just ends up combining harmlessly with the last digit of the
   // exponent that happens to be 1.  The sign bit is 0 so we shift 10 to get
   // the most significant 1 to hit the last bit of the 12 bit sign and exponent.
-  ASSERT(((1 << HeapNumber::kExponentShift) & non_smi_exponent) != 0);
+  DCHECK(((1 << HeapNumber::kExponentShift) & non_smi_exponent) != 0);
   const int shift_distance = HeapNumber::kNonMantissaBitsInTopWord - 2;
   __ srl(at, the_int_, shift_distance);
   __ or_(scratch_, scratch_, at);
   __ sw(scratch_, FieldMemOperand(the_heap_number_,
                                    HeapNumber::kExponentOffset));
   __ sll(scratch_, the_int_, 32 - shift_distance);
   __ Ret(USE_DELAY_SLOT);
   __ sw(scratch_, FieldMemOperand(the_heap_number_,
                                    HeapNumber::kMantissaOffset));
 
@@ skipping 40 matching lines @@
     // Comparing JS objects with <=, >= is complicated.
     if (cc != eq) {
     __ Branch(slow, greater, t0, Operand(FIRST_SPEC_OBJECT_TYPE));
       // Normally here we fall through to return_equal, but undefined is
       // special: (undefined == undefined) == true, but
       // (undefined <= undefined) == false!  See ECMAScript 11.8.5.
       if (cc == less_equal || cc == greater_equal) {
         __ Branch(&return_equal, ne, t0, Operand(ODDBALL_TYPE));
         __ LoadRoot(a6, Heap::kUndefinedValueRootIndex);
         __ Branch(&return_equal, ne, a0, Operand(a6));
-        ASSERT(is_int16(GREATER) && is_int16(LESS));
+        DCHECK(is_int16(GREATER) && is_int16(LESS));
         __ Ret(USE_DELAY_SLOT);
         if (cc == le) {
           // undefined <= undefined should fail.
           __ li(v0, Operand(GREATER));
         } else  {
           // undefined >= undefined should fail.
           __ li(v0, Operand(LESS));
         }
       }
     }
   }
 
   __ bind(&return_equal);
-  ASSERT(is_int16(GREATER) && is_int16(LESS));
+  DCHECK(is_int16(GREATER) && is_int16(LESS));
   __ Ret(USE_DELAY_SLOT);
   if (cc == less) {
     __ li(v0, Operand(GREATER));  // Things aren't less than themselves.
   } else if (cc == greater) {
     __ li(v0, Operand(LESS));     // Things aren't greater than themselves.
   } else {
     __ mov(v0, zero_reg);         // Things are <=, >=, ==, === themselves.
   }
   // For less and greater we don't have to check for NaN since the result of
   // x < x is false regardless.  For the others here is some code to check
@@ skipping 17 matching lines @@
     // Or with all low-bits of mantissa.
     __ lwu(a7, FieldMemOperand(a0, HeapNumber::kMantissaOffset));
     __ Or(v0, a7, Operand(a6));
     // For equal we already have the right value in v0:  Return zero (equal)
     // if all bits in mantissa are zero (it's an Infinity) and non-zero if
     // not (it's a NaN).  For <= and >= we need to load v0 with the failing
     // value if it's a NaN.
     if (cc != eq) {
       // All-zero means Infinity means equal.
       __ Ret(eq, v0, Operand(zero_reg));
-      ASSERT(is_int16(GREATER) && is_int16(LESS));
+      DCHECK(is_int16(GREATER) && is_int16(LESS));
       __ Ret(USE_DELAY_SLOT);
       if (cc == le) {
         __ li(v0, Operand(GREATER));  // NaN <= NaN should fail.
       } else {
         __ li(v0, Operand(LESS));     // NaN >= NaN should fail.
       }
     }
   }
   // No fall through here.
 
   __ bind(&not_identical);
 }
 
 
 static void EmitSmiNonsmiComparison(MacroAssembler* masm,
                                     Register lhs,
                                     Register rhs,
                                     Label* both_loaded_as_doubles,
                                     Label* slow,
                                     bool strict) {
-  ASSERT((lhs.is(a0) && rhs.is(a1)) ||
+  DCHECK((lhs.is(a0) && rhs.is(a1)) ||
          (lhs.is(a1) && rhs.is(a0)));
 
   Label lhs_is_smi;
   __ JumpIfSmi(lhs, &lhs_is_smi);
   // Rhs is a Smi.
   // Check whether the non-smi is a heap number.
   __ GetObjectType(lhs, t0, t0);
   if (strict) {
     // If lhs was not a number and rhs was a Smi then strict equality cannot
     // succeed. Return non-equal (lhs is already not zero).
@@ skipping 96 matching lines @@
   __ jmp(both_loaded_as_doubles);
 }
 
 
 // Fast negative check for internalized-to-internalized equality.
 static void EmitCheckForInternalizedStringsOrObjects(MacroAssembler* masm,
                                                      Register lhs,
                                                      Register rhs,
                                                      Label* possible_strings,
                                                      Label* not_both_strings) {
-  ASSERT((lhs.is(a0) && rhs.is(a1)) ||
+  DCHECK((lhs.is(a0) && rhs.is(a1)) ||
          (lhs.is(a1) && rhs.is(a0)));
 
   // a2 is object type of rhs.
   Label object_test;
   STATIC_ASSERT(kInternalizedTag == 0 && kStringTag == 0);
   __ And(at, a2, Operand(kIsNotStringMask));
   __ Branch(&object_test, ne, at, Operand(zero_reg));
   __ And(at, a2, Operand(kIsNotInternalizedMask));
   __ Branch(possible_strings, ne, at, Operand(zero_reg));
   __ GetObjectType(rhs, a3, a3);
@@ skipping 71 matching lines @@
   // NOTICE! This code is only reached after a smi-fast-case check, so
   // it is certain that at least one operand isn't a smi.
 
   // Handle the case where the objects are identical.  Either returns the answer
   // or goes to slow.  Only falls through if the objects were not identical.
   EmitIdenticalObjectComparison(masm, &slow, cc);
 
   // If either is a Smi (we know that not both are), then they can only
   // be strictly equal if the other is a HeapNumber.
   STATIC_ASSERT(kSmiTag == 0);
-  ASSERT_EQ(0, Smi::FromInt(0));
+  DCHECK_EQ(0, Smi::FromInt(0));
   __ And(a6, lhs, Operand(rhs));
   __ JumpIfNotSmi(a6, &not_smis, a4);
   // One operand is a smi. EmitSmiNonsmiComparison generates code that can:
   // 1) Return the answer.
   // 2) Go to slow.
   // 3) Fall through to both_loaded_as_doubles.
   // 4) Jump to rhs_not_nan.
   // In cases 3 and 4 we have found out we were dealing with a number-number
   // comparison and the numbers have been loaded into f12 and f14 as doubles,
   // or in GP registers (a0, a1, a2, a3) depending on the presence of the FPU.
@@ skipping 35 matching lines @@
     __ mov(v0, a6);  // Return EQUAL as result.
 
     __ mov(v0, a5);  // Return GREATER as result.
     __ bind(&skip);
   }
   __ Ret();
 
   __ bind(&nan);
   // NaN comparisons always fail.
   // Load whatever we need in v0 to make the comparison fail.
-  ASSERT(is_int16(GREATER) && is_int16(LESS));
+  DCHECK(is_int16(GREATER) && is_int16(LESS));
   __ Ret(USE_DELAY_SLOT);
   if (cc == lt || cc == le) {
     __ li(v0, Operand(GREATER));
   } else {
     __ li(v0, Operand(LESS));
   }
 
 
   __ bind(&not_smis);
   // At this point we know we are dealing with two different objects,
@@ skipping 61 matching lines @@
   // Figure out which native to call and setup the arguments.
   Builtins::JavaScript native;
   if (cc == eq) {
     native = strict() ? Builtins::STRICT_EQUALS : Builtins::EQUALS;
   } else {
     native = Builtins::COMPARE;
     int ncr;  // NaN compare result.
     if (cc == lt || cc == le) {
       ncr = GREATER;
     } else {
-      ASSERT(cc == gt || cc == ge);  // Remaining cases.
+      DCHECK(cc == gt || cc == ge);  // Remaining cases.
       ncr = LESS;
     }
     __ li(a0, Operand(Smi::FromInt(ncr)));
     __ push(a0);
   }
 
   // Call the native; it returns -1 (less), 0 (equal), or 1 (greater)
   // tagged as a small integer.
   __ InvokeBuiltin(native, JUMP_FUNCTION);
 
@@ skipping 230 matching lines @@
     __ bind(&call_runtime);
     __ TailCallRuntime(Runtime::kMathPowRT, 2, 1);
 
     // The stub is called from non-optimized code, which expects the result
     // as heap number in exponent.
     __ bind(&done);
     __ AllocateHeapNumber(
         heapnumber, scratch, scratch2, heapnumbermap, &call_runtime);
     __ sdc1(double_result,
             FieldMemOperand(heapnumber, HeapNumber::kValueOffset));
-    ASSERT(heapnumber.is(v0));
+    DCHECK(heapnumber.is(v0));
     __ IncrementCounter(counters->math_pow(), 1, scratch, scratch2);
     __ DropAndRet(2);
   } else {
     __ push(ra);
     {
       AllowExternalCallThatCantCauseGC scope(masm);
       __ PrepareCallCFunction(0, 2, scratch);
       __ MovToFloatParameters(double_base, double_exponent);
       __ CallCFunction(
           ExternalReference::power_double_double_function(isolate()),
@@ skipping 126 matching lines @@
     masm->sd(ra, MemOperand(sp));  // This spot was reserved in EnterExitFrame.
     // Stack space reservation moved to the branch delay slot below.
     // Stack is still aligned.
 
     // Call the C routine.
     masm->mov(t9, s2);  // Function pointer to t9 to conform to ABI for PIC.
     masm->jalr(t9);
     // Set up sp in the delay slot.
     masm->daddiu(sp, sp, -kCArgsSlotsSize);
     // Make sure the stored 'ra' points to this position.
-    ASSERT_EQ(kNumInstructionsToJump,
+    DCHECK_EQ(kNumInstructionsToJump,
               masm->InstructionsGeneratedSince(&find_ra));
   }
 
   // Runtime functions should not return 'the hole'.  Allowing it to escape may
   // lead to crashes in the IC code later.
   if (FLAG_debug_code) {
     Label okay;
     __ LoadRoot(a4, Heap::kTheHoleValueRootIndex);
     __ Branch(&okay, ne, v0, Operand(a4));
     __ stop("The hole escaped");
@@ skipping 234 matching lines @@
 // Uses registers a0 to a4.
 // Expected input (depending on whether args are in registers or on the stack):
 // * object: a0 or at sp + 1 * kPointerSize.
 // * function: a1 or at sp.
 //
 // An inlined call site may have been generated before calling this stub.
 // In this case the offset to the inline site to patch is passed on the stack,
 // in the safepoint slot for register a4.
 void InstanceofStub::Generate(MacroAssembler* masm) {
   // Call site inlining and patching implies arguments in registers.
-  ASSERT(HasArgsInRegisters() || !HasCallSiteInlineCheck());
+  DCHECK(HasArgsInRegisters() || !HasCallSiteInlineCheck());
   // ReturnTrueFalse is only implemented for inlined call sites.
-  ASSERT(!ReturnTrueFalseObject() || HasCallSiteInlineCheck());
+  DCHECK(!ReturnTrueFalseObject() || HasCallSiteInlineCheck());
 
   // Fixed register usage throughout the stub:
   const Register object = a0;  // Object (lhs).
   Register map = a3;  // Map of the object.
   const Register function = a1;  // Function (rhs).
   const Register prototype = a4;  // Prototype of the function.
   const Register inline_site = t1;
   const Register scratch = a2;
 
   const int32_t kDeltaToLoadBoolResult = 7 * Assembler::kInstrSize;
@@ skipping 29 matching lines @@
   // Check that the function prototype is a JS object.
   __ JumpIfSmi(prototype, &slow);
   __ IsObjectJSObjectType(prototype, scratch, scratch, &slow);
 
   // Update the global instanceof or call site inlined cache with the current
   // map and function. The cached answer will be set when it is known below.
   if (!HasCallSiteInlineCheck()) {
     __ StoreRoot(function, Heap::kInstanceofCacheFunctionRootIndex);
     __ StoreRoot(map, Heap::kInstanceofCacheMapRootIndex);
   } else {
-    ASSERT(HasArgsInRegisters());
+    DCHECK(HasArgsInRegisters());
     // Patch the (relocated) inlined map check.
 
     // The offset was stored in a4 safepoint slot.
     // (See LCodeGen::DoDeferredLInstanceOfKnownGlobal).
     __ LoadFromSafepointRegisterSlot(scratch, a4);
     __ Dsubu(inline_site, ra, scratch);
     // Get the map location in scratch and patch it.
     __ GetRelocatedValue(inline_site, scratch, v1);  // v1 used as scratch.
     __ sd(map, FieldMemOperand(scratch, Cell::kValueOffset));
   }
 
   // Register mapping: a3 is object map and a4 is function prototype.
   // Get prototype of object into a2.
   __ ld(scratch, FieldMemOperand(map, Map::kPrototypeOffset));
 
   // We don't need map any more. Use it as a scratch register.
   Register scratch2 = map;
   map = no_reg;
 
   // Loop through the prototype chain looking for the function prototype.
   __ LoadRoot(scratch2, Heap::kNullValueRootIndex);
   __ bind(&loop);
   __ Branch(&is_instance, eq, scratch, Operand(prototype));
   __ Branch(&is_not_instance, eq, scratch, Operand(scratch2));
   __ ld(scratch, FieldMemOperand(scratch, HeapObject::kMapOffset));
   __ ld(scratch, FieldMemOperand(scratch, Map::kPrototypeOffset));
   __ Branch(&loop);
 
   __ bind(&is_instance);
-  ASSERT(Smi::FromInt(0) == 0);
+  DCHECK(Smi::FromInt(0) == 0);
   if (!HasCallSiteInlineCheck()) {
     __ mov(v0, zero_reg);
     __ StoreRoot(v0, Heap::kInstanceofCacheAnswerRootIndex);
   } else {
     // Patch the call site to return true.
     __ LoadRoot(v0, Heap::kTrueValueRootIndex);
     __ Daddu(inline_site, inline_site, Operand(kDeltaToLoadBoolResult));
     // Get the boolean result location in scratch and patch it.
     __ PatchRelocatedValue(inline_site, scratch, v0);
 
     if (!ReturnTrueFalseObject()) {
-      ASSERT_EQ(Smi::FromInt(0), 0);
+      DCHECK_EQ(Smi::FromInt(0), 0);
       __ mov(v0, zero_reg);
     }
   }
   __ DropAndRet(HasArgsInRegisters() ? 0 : 2);
 
   __ bind(&is_not_instance);
   if (!HasCallSiteInlineCheck()) {
     __ li(v0, Operand(Smi::FromInt(1)));
     __ StoreRoot(v0, Heap::kInstanceofCacheAnswerRootIndex);
   } else {
@@ skipping 199 matching lines @@
   __ bind(&skip_min);
 
   __ bind(&try_allocate);
 
   // Compute the sizes of backing store, parameter map, and arguments object.
   // 1. Parameter map, has 2 extra words containing context and backing store.
   const int kParameterMapHeaderSize =
       FixedArray::kHeaderSize + 2 * kPointerSize;
   // If there are no mapped parameters, we do not need the parameter_map.
   Label param_map_size;
-  ASSERT_EQ(0, Smi::FromInt(0));
+  DCHECK_EQ(0, Smi::FromInt(0));
   __ Branch(USE_DELAY_SLOT, &param_map_size, eq, a1, Operand(zero_reg));
   __ mov(t1, zero_reg);  // In delay slot: param map size = 0 when a1 == 0.
   __ SmiScale(t1, a1, kPointerSizeLog2);
   __ daddiu(t1, t1, kParameterMapHeaderSize);
   __ bind(&param_map_size);
 
   // 2. Backing store.
   __ SmiScale(t2, a2, kPointerSizeLog2);
   __ Daddu(t1, t1, Operand(t2));
   __ Daddu(t1, t1, Operand(FixedArray::kHeaderSize));
@@ skipping 483 matching lines @@
     __ daddu(a6, a0, a2);
 
     // Argument 6: Set the number of capture registers to zero to force global
     // regexps to behave as non-global. This does not affect non-global regexps.
     __ mov(a5, zero_reg);
 
     // Argument 5: static offsets vector buffer.
     __ li(a4, Operand(
           ExternalReference::address_of_static_offsets_vector(isolate())));
   } else {  // O32.
-    ASSERT(kMipsAbi == kO32);
+    DCHECK(kMipsAbi == kO32);
 
     // Argument 9: Pass current isolate address.
     // CFunctionArgumentOperand handles MIPS stack argument slots.
     __ li(a0, Operand(ExternalReference::isolate_address(isolate())));
     __ sd(a0, MemOperand(sp, 5 * kPointerSize));
 
     // Argument 8: Indicate that this is a direct call from JavaScript.
     __ li(a0, Operand(1));
     __ sd(a0, MemOperand(sp, 4 * kPointerSize));
 
@@ skipping 230 matching lines @@
 static void GenerateRecordCallTarget(MacroAssembler* masm) {
   // Cache the called function in a feedback vector slot.  Cache states
   // are uninitialized, monomorphic (indicated by a JSFunction), and
   // megamorphic.
   // a0 : number of arguments to the construct function
   // a1 : the function to call
   // a2 : Feedback vector
   // a3 : slot in feedback vector (Smi)
   Label initialize, done, miss, megamorphic, not_array_function;
 
-  ASSERT_EQ(*TypeFeedbackInfo::MegamorphicSentinel(masm->isolate()),
+  DCHECK_EQ(*TypeFeedbackInfo::MegamorphicSentinel(masm->isolate()),
             masm->isolate()->heap()->megamorphic_symbol());
-  ASSERT_EQ(*TypeFeedbackInfo::UninitializedSentinel(masm->isolate()),
+  DCHECK_EQ(*TypeFeedbackInfo::UninitializedSentinel(masm->isolate()),
             masm->isolate()->heap()->uninitialized_symbol());
 
   // Load the cache state into a4.
   __ dsrl(a4, a3, 32 - kPointerSizeLog2);
   __ Daddu(a4, a2, Operand(a4));
   __ ld(a4, FieldMemOperand(a4, FixedArray::kHeaderSize));
 
   // A monomorphic cache hit or an already megamorphic state: invoke the
   // function without changing the state.
   __ Branch(&done, eq, a4, Operand(a1));
@@ skipping 254 matching lines @@
 }
 
 
 // StringCharCodeAtGenerator.
 void StringCharCodeAtGenerator::GenerateFast(MacroAssembler* masm) {
   Label flat_string;
   Label ascii_string;
   Label got_char_code;
   Label sliced_string;
 
-  ASSERT(!a4.is(index_));
-  ASSERT(!a4.is(result_));
-  ASSERT(!a4.is(object_));
+  DCHECK(!a4.is(index_));
+  DCHECK(!a4.is(result_));
+  DCHECK(!a4.is(object_));
 
   // If the receiver is a smi trigger the non-string case.
   __ JumpIfSmi(object_, receiver_not_string_);
 
   // Fetch the instance type of the receiver into result register.
   __ ld(result_, FieldMemOperand(object_, HeapObject::kMapOffset));
   __ lbu(result_, FieldMemOperand(result_, Map::kInstanceTypeOffset));
   // If the receiver is not a string trigger the non-string case.
   __ And(a4, result_, Operand(kIsNotStringMask));
   __ Branch(receiver_not_string_, ne, a4, Operand(zero_reg));
@@ skipping 178 matching lines @@
               result_,
               Heap::kHeapNumberMapRootIndex,
               index_not_number_,
               DONT_DO_SMI_CHECK);
   call_helper.BeforeCall(masm);
   // Consumed by runtime conversion function:
   __ Push(object_, index_);
   if (index_flags_ == STRING_INDEX_IS_NUMBER) {
     __ CallRuntime(Runtime::kNumberToIntegerMapMinusZero, 1);
   } else {
-    ASSERT(index_flags_ == STRING_INDEX_IS_ARRAY_INDEX);
+    DCHECK(index_flags_ == STRING_INDEX_IS_ARRAY_INDEX);
     // NumberToSmi discards numbers that are not exact integers.
     __ CallRuntime(Runtime::kNumberToSmi, 1);
   }
 
   // Save the conversion result before the pop instructions below
   // have a chance to overwrite it.
 
   __ Move(index_, v0);
   __ pop(object_);
   // Reload the instance type.
@@ skipping 22 matching lines @@
   __ Abort(kUnexpectedFallthroughFromCharCodeAtSlowCase);
 }
 
 
 // -------------------------------------------------------------------------
 // StringCharFromCodeGenerator
 
 void StringCharFromCodeGenerator::GenerateFast(MacroAssembler* masm) {
   // Fast case of Heap::LookupSingleCharacterStringFromCode.
 
-  ASSERT(!a4.is(result_));
-  ASSERT(!a4.is(code_));
+  DCHECK(!a4.is(result_));
+  DCHECK(!a4.is(code_));
 
   STATIC_ASSERT(kSmiTag == 0);
-  ASSERT(IsPowerOf2(String::kMaxOneByteCharCode + 1));
+  DCHECK(IsPowerOf2(String::kMaxOneByteCharCode + 1));
   __ And(a4,
          code_,
          Operand(kSmiTagMask |
                  ((~String::kMaxOneByteCharCode) << kSmiTagSize)));
   __ Branch(&slow_case_, ne, a4, Operand(zero_reg));
 
 
   __ LoadRoot(result_, Heap::kSingleCharacterStringCacheRootIndex);
   // At this point code register contains smi tagged ASCII char code.
   STATIC_ASSERT(kSmiTag == 0);
@@ skipping 364 matching lines @@
   __ bind(&strings_not_equal);
   // Can not put li in delayslot, it has multi instructions.
   __ li(v0, Operand(Smi::FromInt(NOT_EQUAL)));
   __ Ret();
 
   // Check if the length is zero.
   Label compare_chars;
   __ bind(&check_zero_length);
   STATIC_ASSERT(kSmiTag == 0);
   __ Branch(&compare_chars, ne, length, Operand(zero_reg));
-  ASSERT(is_int16((intptr_t)Smi::FromInt(EQUAL)));
+  DCHECK(is_int16((intptr_t)Smi::FromInt(EQUAL)));
   __ Ret(USE_DELAY_SLOT);
   __ li(v0, Operand(Smi::FromInt(EQUAL)));
 
   // Compare characters.
   __ bind(&compare_chars);
 
   GenerateAsciiCharsCompareLoop(masm,
                                 left, right, length, scratch2, scratch3, v0,
                                 &strings_not_equal);
 
@@ skipping 22 matching lines @@
   STATIC_ASSERT(kSmiTag == 0);
   __ Branch(&compare_lengths, eq, min_length, Operand(zero_reg));
 
   // Compare loop.
   GenerateAsciiCharsCompareLoop(masm,
                                 left, right, min_length, scratch2, scratch4, v0,
                                 &result_not_equal);
 
   // Compare lengths - strings up to min-length are equal.
   __ bind(&compare_lengths);
-  ASSERT(Smi::FromInt(EQUAL) == static_cast<Smi*>(0));
+  DCHECK(Smi::FromInt(EQUAL) == static_cast<Smi*>(0));
   // Use length_delta as result if it's zero.
   __ mov(scratch2, length_delta);
   __ mov(scratch4, zero_reg);
   __ mov(v0, zero_reg);
 
   __ bind(&result_not_equal);
   // Conditionally update the result based either on length_delta or
   // the last comparion performed in the loop above.
   Label ret;
   __ Branch(&ret, eq, scratch2, Operand(scratch4));
@@ skipping 95 matching lines @@
   }
 
   // Tail call into the stub that handles binary operations with allocation
   // sites.
   BinaryOpWithAllocationSiteStub stub(isolate(), state_);
   __ TailCallStub(&stub);
 }
 
 
 void ICCompareStub::GenerateSmis(MacroAssembler* masm) {
-  ASSERT(state_ == CompareIC::SMI);
+  DCHECK(state_ == CompareIC::SMI);
   Label miss;
   __ Or(a2, a1, a0);
   __ JumpIfNotSmi(a2, &miss);
 
   if (GetCondition() == eq) {
     // For equality we do not care about the sign of the result.
     __ Ret(USE_DELAY_SLOT);
     __ Dsubu(v0, a0, a1);
   } else {
     // Untag before subtracting to avoid handling overflow.
     __ SmiUntag(a1);
     __ SmiUntag(a0);
     __ Ret(USE_DELAY_SLOT);
     __ Dsubu(v0, a1, a0);
   }
 
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
 
 void ICCompareStub::GenerateNumbers(MacroAssembler* masm) {
-  ASSERT(state_ == CompareIC::NUMBER);
+  DCHECK(state_ == CompareIC::NUMBER);
 
   Label generic_stub;
   Label unordered, maybe_undefined1, maybe_undefined2;
   Label miss;
 
   if (left_ == CompareIC::SMI) {
     __ JumpIfNotSmi(a1, &miss);
   }
   if (right_ == CompareIC::SMI) {
     __ JumpIfNotSmi(a0, &miss);
@@ skipping 32 matching lines @@
 
   // Return a result of -1, 0, or 1, or use CompareStub for NaNs.
   Label fpu_eq, fpu_lt;
   // Test if equal, and also handle the unordered/NaN case.
   __ BranchF(&fpu_eq, &unordered, eq, f0, f2);
 
   // Test if less (unordered case is already handled).
   __ BranchF(&fpu_lt, NULL, lt, f0, f2);
 
   // Otherwise it's greater, so just fall thru, and return.
-  ASSERT(is_int16(GREATER) && is_int16(EQUAL) && is_int16(LESS));
+  DCHECK(is_int16(GREATER) && is_int16(EQUAL) && is_int16(LESS));
   __ Ret(USE_DELAY_SLOT);
   __ li(v0, Operand(GREATER));
 
   __ bind(&fpu_eq);
   __ Ret(USE_DELAY_SLOT);
   __ li(v0, Operand(EQUAL));
 
   __ bind(&fpu_lt);
   __ Ret(USE_DELAY_SLOT);
   __ li(v0, Operand(LESS));
@@ skipping 19 matching lines @@
     __ LoadRoot(at, Heap::kUndefinedValueRootIndex);
     __ Branch(&unordered, eq, a1, Operand(at));
   }
 
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
 
 void ICCompareStub::GenerateInternalizedStrings(MacroAssembler* masm) {
-  ASSERT(state_ == CompareIC::INTERNALIZED_STRING);
+  DCHECK(state_ == CompareIC::INTERNALIZED_STRING);
   Label miss;
 
   // Registers containing left and right operands respectively.
   Register left = a1;
   Register right = a0;
   Register tmp1 = a2;
   Register tmp2 = a3;
 
   // Check that both operands are heap objects.
   __ JumpIfEitherSmi(left, right, &miss);
 
   // Check that both operands are internalized strings.
   __ ld(tmp1, FieldMemOperand(left, HeapObject::kMapOffset));
   __ ld(tmp2, FieldMemOperand(right, HeapObject::kMapOffset));
   __ lbu(tmp1, FieldMemOperand(tmp1, Map::kInstanceTypeOffset));
   __ lbu(tmp2, FieldMemOperand(tmp2, Map::kInstanceTypeOffset));
   STATIC_ASSERT(kInternalizedTag == 0 && kStringTag == 0);
   __ Or(tmp1, tmp1, Operand(tmp2));
   __ And(at, tmp1, Operand(kIsNotStringMask | kIsNotInternalizedMask));
   __ Branch(&miss, ne, at, Operand(zero_reg));
 
   // Make sure a0 is non-zero. At this point input operands are
   // guaranteed to be non-zero.
-  ASSERT(right.is(a0));
+  DCHECK(right.is(a0));
   STATIC_ASSERT(EQUAL == 0);
   STATIC_ASSERT(kSmiTag == 0);
   __ mov(v0, right);
   // Internalized strings are compared by identity.
   __ Ret(ne, left, Operand(right));
-  ASSERT(is_int16(EQUAL));
+  DCHECK(is_int16(EQUAL));
   __ Ret(USE_DELAY_SLOT);
   __ li(v0, Operand(Smi::FromInt(EQUAL)));
 
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
 
 void ICCompareStub::GenerateUniqueNames(MacroAssembler* masm) {
-  ASSERT(state_ == CompareIC::UNIQUE_NAME);
-  ASSERT(GetCondition() == eq);
+  DCHECK(state_ == CompareIC::UNIQUE_NAME);
+  DCHECK(GetCondition() == eq);
   Label miss;
 
   // Registers containing left and right operands respectively.
   Register left = a1;
   Register right = a0;
   Register tmp1 = a2;
   Register tmp2 = a3;
 
   // Check that both operands are heap objects.
   __ JumpIfEitherSmi(left, right, &miss);
 
   // Check that both operands are unique names. This leaves the instance
   // types loaded in tmp1 and tmp2.
   __ ld(tmp1, FieldMemOperand(left, HeapObject::kMapOffset));
   __ ld(tmp2, FieldMemOperand(right, HeapObject::kMapOffset));
   __ lbu(tmp1, FieldMemOperand(tmp1, Map::kInstanceTypeOffset));
   __ lbu(tmp2, FieldMemOperand(tmp2, Map::kInstanceTypeOffset));
 
   __ JumpIfNotUniqueName(tmp1, &miss);
   __ JumpIfNotUniqueName(tmp2, &miss);
 
   // Use a0 as result
   __ mov(v0, a0);
 
   // Unique names are compared by identity.
   Label done;
   __ Branch(&done, ne, left, Operand(right));
   // Make sure a0 is non-zero. At this point input operands are
   // guaranteed to be non-zero.
-  ASSERT(right.is(a0));
+  DCHECK(right.is(a0));
   STATIC_ASSERT(EQUAL == 0);
   STATIC_ASSERT(kSmiTag == 0);
   __ li(v0, Operand(Smi::FromInt(EQUAL)));
   __ bind(&done);
   __ Ret();
 
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
 
 void ICCompareStub::GenerateStrings(MacroAssembler* masm) {
-  ASSERT(state_ == CompareIC::STRING);
+  DCHECK(state_ == CompareIC::STRING);
   Label miss;
 
   bool equality = Token::IsEqualityOp(op_);
 
   // Registers containing left and right operands respectively.
   Register left = a1;
   Register right = a0;
   Register tmp1 = a2;
   Register tmp2 = a3;
   Register tmp3 = a4;
@@ skipping 22 matching lines @@
   __ Ret(USE_DELAY_SLOT);
   __ mov(v0, zero_reg);  // In the delay slot.
   __ bind(&left_ne_right);
 
   // Handle not identical strings.
 
   // Check that both strings are internalized strings. If they are, we're done
   // because we already know they are not identical. We know they are both
   // strings.
   if (equality) {
-    ASSERT(GetCondition() == eq);
+    DCHECK(GetCondition() == eq);
     STATIC_ASSERT(kInternalizedTag == 0);
     __ Or(tmp3, tmp1, Operand(tmp2));
     __ And(tmp5, tmp3, Operand(kIsNotInternalizedMask));
     Label is_symbol;
     __ Branch(&is_symbol, ne, tmp5, Operand(zero_reg));
     // Make sure a0 is non-zero. At this point input operands are
     // guaranteed to be non-zero.
-    ASSERT(right.is(a0));
+    DCHECK(right.is(a0));
     __ Ret(USE_DELAY_SLOT);
     __ mov(v0, a0);  // In the delay slot.
     __ bind(&is_symbol);
   }
 
   // Check that both strings are sequential ASCII.
   Label runtime;
   __ JumpIfBothInstanceTypesAreNotSequentialAscii(
       tmp1, tmp2, tmp3, tmp4, &runtime);
 
@@ skipping 14 matching lines @@
   } else {
     __ TailCallRuntime(Runtime::kStringCompare, 2, 1);
   }
 
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
 
 void ICCompareStub::GenerateObjects(MacroAssembler* masm) {
-  ASSERT(state_ == CompareIC::OBJECT);
+  DCHECK(state_ == CompareIC::OBJECT);
   Label miss;
   __ And(a2, a1, Operand(a0));
   __ JumpIfSmi(a2, &miss);
 
   __ GetObjectType(a0, a2, a2);
   __ Branch(&miss, ne, a2, Operand(JS_OBJECT_TYPE));
   __ GetObjectType(a1, a2, a2);
   __ Branch(&miss, ne, a2, Operand(JS_OBJECT_TYPE));
 
-  ASSERT(GetCondition() == eq);
+  DCHECK(GetCondition() == eq);
   __ Ret(USE_DELAY_SLOT);
   __ dsubu(v0, a0, a1);
 
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
 
 void ICCompareStub::GenerateKnownObjects(MacroAssembler* masm) {
   Label miss;
@@ skipping 68 matching lines @@
 }
 
 
 void NameDictionaryLookupStub::GenerateNegativeLookup(MacroAssembler* masm,
                                                       Label* miss,
                                                       Label* done,
                                                       Register receiver,
                                                       Register properties,
                                                       Handle<Name> name,
                                                       Register scratch0) {
-  ASSERT(name->IsUniqueName());
+  DCHECK(name->IsUniqueName());
   // If names of slots in range from 1 to kProbes - 1 for the hash value are
   // not equal to the name and kProbes-th slot is not used (its name is the
   // undefined value), it guarantees the hash table doesn't contain the
   // property. It's true even if some slots represent deleted properties
   // (their names are the hole value).
   for (int i = 0; i < kInlinedProbes; i++) {
     // scratch0 points to properties hash.
     // Compute the masked index: (hash + i + i * i) & mask.
     Register index = scratch0;
     // Capacity is smi 2^n.
     __ SmiLoadUntag(index, FieldMemOperand(properties, kCapacityOffset));
     __ Dsubu(index, index, Operand(1));
     __ And(index, index,
            Operand(name->Hash() + NameDictionary::GetProbeOffset(i)));
 
     // Scale the index by multiplying by the entry size.
-    ASSERT(NameDictionary::kEntrySize == 3);
+    DCHECK(NameDictionary::kEntrySize == 3);
     __ dsll(at, index, 1);
     __ Daddu(index, index, at);  // index *= 3.
 
     Register entity_name = scratch0;
     // Having undefined at this place means the name is not contained.
-    ASSERT_EQ(kSmiTagSize, 1);
+    DCHECK_EQ(kSmiTagSize, 1);
     Register tmp = properties;
 
     __ dsll(scratch0, index, kPointerSizeLog2);
     __ Daddu(tmp, properties, scratch0);
     __ ld(entity_name, FieldMemOperand(tmp, kElementsStartOffset));
 
-    ASSERT(!tmp.is(entity_name));
+    DCHECK(!tmp.is(entity_name));
     __ LoadRoot(tmp, Heap::kUndefinedValueRootIndex);
     __ Branch(done, eq, entity_name, Operand(tmp));
 
     // Load the hole ready for use below:
     __ LoadRoot(tmp, Heap::kTheHoleValueRootIndex);
 
     // Stop if found the property.
     __ Branch(miss, eq, entity_name, Operand(Handle<Name>(name)));
 
     Label good;
@@ skipping 32 matching lines @@
 // |done| label if a property with the given name is found. Jump to
 // the |miss| label otherwise.
 // If lookup was successful |scratch2| will be equal to elements + 4 * index.
 void NameDictionaryLookupStub::GeneratePositiveLookup(MacroAssembler* masm,
                                                       Label* miss,
                                                       Label* done,
                                                       Register elements,
                                                       Register name,
                                                       Register scratch1,
                                                       Register scratch2) {
-  ASSERT(!elements.is(scratch1));
-  ASSERT(!elements.is(scratch2));
-  ASSERT(!name.is(scratch1));
-  ASSERT(!name.is(scratch2));
+  DCHECK(!elements.is(scratch1));
+  DCHECK(!elements.is(scratch2));
+  DCHECK(!name.is(scratch1));
+  DCHECK(!name.is(scratch2));
 
   __ AssertName(name);
 
   // Compute the capacity mask.
   __ ld(scratch1, FieldMemOperand(elements, kCapacityOffset));
   __ SmiUntag(scratch1);
   __ Dsubu(scratch1, scratch1, Operand(1));
 
   // Generate an unrolled loop that performs a few probes before
   // giving up. Measurements done on Gmail indicate that 2 probes
   // cover ~93% of loads from dictionaries.
   for (int i = 0; i < kInlinedProbes; i++) {
     // Compute the masked index: (hash + i + i * i) & mask.
     __ lwu(scratch2, FieldMemOperand(name, Name::kHashFieldOffset));
     if (i > 0) {
       // Add the probe offset (i + i * i) left shifted to avoid right shifting
       // the hash in a separate instruction. The value hash + i + i * i is right
       // shifted in the following and instruction.
-      ASSERT(NameDictionary::GetProbeOffset(i) <
+      DCHECK(NameDictionary::GetProbeOffset(i) <
              1 << (32 - Name::kHashFieldOffset));
       __ Daddu(scratch2, scratch2, Operand(
           NameDictionary::GetProbeOffset(i) << Name::kHashShift));
     }
     __ dsrl(scratch2, scratch2, Name::kHashShift);
     __ And(scratch2, scratch1, scratch2);
 
     // Scale the index by multiplying by the element size.
-    ASSERT(NameDictionary::kEntrySize == 3);
+    DCHECK(NameDictionary::kEntrySize == 3);
     // scratch2 = scratch2 * 3.
 
     __ dsll(at, scratch2, 1);
     __ Daddu(scratch2, scratch2, at);
 
     // Check if the key is identical to the name.
     __ dsll(at, scratch2, kPointerSizeLog2);
     __ Daddu(scratch2, elements, at);
     __ ld(at, FieldMemOperand(scratch2, kElementsStartOffset));
     __ Branch(done, eq, name, Operand(at));
   }
 
   const int spill_mask =
       (ra.bit() | a6.bit() | a5.bit() | a4.bit() |
        a3.bit() | a2.bit() | a1.bit() | a0.bit() | v0.bit()) &
       ~(scratch1.bit() | scratch2.bit());
 
   __ MultiPush(spill_mask);
   if (name.is(a0)) {
-    ASSERT(!elements.is(a1));
+    DCHECK(!elements.is(a1));
     __ Move(a1, name);
     __ Move(a0, elements);
   } else {
     __ Move(a0, elements);
     __ Move(a1, name);
   }
   NameDictionaryLookupStub stub(masm->isolate(), POSITIVE_LOOKUP);
   __ CallStub(&stub);
   __ mov(scratch2, a2);
   __ mov(at, v0);
@@ skipping 35 matching lines @@
 
   __ LoadRoot(undefined, Heap::kUndefinedValueRootIndex);
 
   for (int i = kInlinedProbes; i < kTotalProbes; i++) {
     // Compute the masked index: (hash + i + i * i) & mask.
     // Capacity is smi 2^n.
     if (i > 0) {
       // Add the probe offset (i + i * i) left shifted to avoid right shifting
       // the hash in a separate instruction. The value hash + i + i * i is right
       // shifted in the following and instruction.
-      ASSERT(NameDictionary::GetProbeOffset(i) <
+      DCHECK(NameDictionary::GetProbeOffset(i) <
              1 << (32 - Name::kHashFieldOffset));
       __ Daddu(index, hash, Operand(
           NameDictionary::GetProbeOffset(i) << Name::kHashShift));
     } else {
       __ mov(index, hash);
     }
     __ dsrl(index, index, Name::kHashShift);
     __ And(index, mask, index);
 
     // Scale the index by multiplying by the entry size.
-    ASSERT(NameDictionary::kEntrySize == 3);
+    DCHECK(NameDictionary::kEntrySize == 3);
     // index *= 3.
     __ mov(at, index);
     __ dsll(index, index, 1);
     __ Daddu(index, index, at);
 
 
-    ASSERT_EQ(kSmiTagSize, 1);
+    DCHECK_EQ(kSmiTagSize, 1);
     __ dsll(index, index, kPointerSizeLog2);
     __ Daddu(index, index, dictionary);
     __ ld(entry_key, FieldMemOperand(index, kElementsStartOffset));
 
     // Having undefined at this place means the name is not contained.
     __ Branch(&not_in_dictionary, eq, entry_key, Operand(undefined));
 
     // Stop if found the property.
     __ Branch(&in_dictionary, eq, entry_key, Operand(key));
 
@@ skipping 116 matching lines @@
   __ Ret();
 }
 
 
 void RecordWriteStub::InformIncrementalMarker(MacroAssembler* masm) {
   regs_.SaveCallerSaveRegisters(masm, save_fp_regs_mode_);
   int argument_count = 3;
   __ PrepareCallCFunction(argument_count, regs_.scratch0());
   Register address =
       a0.is(regs_.address()) ? regs_.scratch0() : regs_.address();
-  ASSERT(!address.is(regs_.object()));
-  ASSERT(!address.is(a0));
+  DCHECK(!address.is(regs_.object()));
+  DCHECK(!address.is(a0));
   __ Move(address, regs_.address());
   __ Move(a0, regs_.object());
   __ Move(a1, address);
   __ li(a2, Operand(ExternalReference::isolate_address(isolate())));
 
   AllowExternalCallThatCantCauseGC scope(masm);
   __ CallCFunction(
       ExternalReference::incremental_marking_record_write_function(isolate()),
       argument_count);
   regs_.RestoreCallerSaveRegisters(masm, save_fp_regs_mode_);
@@ skipping 200 matching lines @@
   __ Dsubu(a0, ra, Operand(kReturnAddressDistanceFromFunctionStart));
 
   // The caller's return address is above the saved temporaries.
   // Grab that for the second argument to the hook.
   __ Daddu(a1, sp, Operand(kNumSavedRegs * kPointerSize));
 
   // Align the stack if necessary.
   int frame_alignment = masm->ActivationFrameAlignment();
   if (frame_alignment > kPointerSize) {
     __ mov(s5, sp);
-    ASSERT(IsPowerOf2(frame_alignment));
+    DCHECK(IsPowerOf2(frame_alignment));
     __ And(sp, sp, Operand(-frame_alignment));
   }
 
   __ Dsubu(sp, sp, kCArgsSlotsSize);
 #if defined(V8_HOST_ARCH_MIPS) || defined(V8_HOST_ARCH_MIPS64)
   int64_t entry_hook =
       reinterpret_cast<int64_t>(isolate()->function_entry_hook());
   __ li(t9, Operand(entry_hook));
 #else
   // Under the simulator we need to indirect the entry hook through a
@@ skipping 47 matching lines @@
 
 static void CreateArrayDispatchOneArgument(MacroAssembler* masm,
                                            AllocationSiteOverrideMode mode) {
   // a2 - allocation site (if mode != DISABLE_ALLOCATION_SITES)
   // a3 - kind (if mode != DISABLE_ALLOCATION_SITES)
   // a0 - number of arguments
   // a1 - constructor?
   // sp[0] - last argument
   Label normal_sequence;
   if (mode == DONT_OVERRIDE) {
-    ASSERT(FAST_SMI_ELEMENTS == 0);
-    ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1);
-    ASSERT(FAST_ELEMENTS == 2);
-    ASSERT(FAST_HOLEY_ELEMENTS == 3);
-    ASSERT(FAST_DOUBLE_ELEMENTS == 4);
-    ASSERT(FAST_HOLEY_DOUBLE_ELEMENTS == 5);
+    DCHECK(FAST_SMI_ELEMENTS == 0);
+    DCHECK(FAST_HOLEY_SMI_ELEMENTS == 1);
+    DCHECK(FAST_ELEMENTS == 2);
+    DCHECK(FAST_HOLEY_ELEMENTS == 3);
+    DCHECK(FAST_DOUBLE_ELEMENTS == 4);
+    DCHECK(FAST_HOLEY_DOUBLE_ELEMENTS == 5);
 
     // is the low bit set? If so, we are holey and that is good.
     __ And(at, a3, Operand(1));
     __ Branch(&normal_sequence, ne, at, Operand(zero_reg));
   }
   // look at the first argument
   __ ld(a5, MemOperand(sp, 0));
   __ Branch(&normal_sequence, eq, a5, Operand(zero_reg));
 
   if (mode == DISABLE_ALLOCATION_SITES) {
@@ skipping 286 matching lines @@
   // Prepare arguments.
   __ mov(scratch, sp);
 
   // Allocate the v8::Arguments structure in the arguments' space since
   // it's not controlled by GC.
   const int kApiStackSpace = 4;
 
   FrameScope frame_scope(masm, StackFrame::MANUAL);
   __ EnterExitFrame(false, kApiStackSpace);
 
-  ASSERT(!api_function_address.is(a0) && !scratch.is(a0));
+  DCHECK(!api_function_address.is(a0) && !scratch.is(a0));
   // a0 = FunctionCallbackInfo&
   // Arguments is after the return address.
   __ Daddu(a0, sp, Operand(1 * kPointerSize));
   // FunctionCallbackInfo::implicit_args_
   __ sd(scratch, MemOperand(a0, 0 * kPointerSize));
   // FunctionCallbackInfo::values_
   __ Daddu(at, scratch, Operand((FCA::kArgsLength - 1 + argc) * kPointerSize));
   __ sd(at, MemOperand(a0, 1 * kPointerSize));
   // FunctionCallbackInfo::length_ = argc
   __ li(at, Operand(argc));
@@ skipping 57 matching lines @@
                               MemOperand(fp, 6 * kPointerSize),
                               NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS64