Reapply r4686: Complete version of full codegen for x64....

src/ia32/codegen-ia32.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 6147 matching lines @@
   Result map = allocator()->Allocate();
   ASSERT(map.is_valid());
   __ mov(map.reg(), FieldOperand(obj.reg(), HeapObject::kMapOffset));
   // Undetectable objects behave like undefined when tested with typeof.
   __ movzx_b(map.reg(), FieldOperand(map.reg(), Map::kBitFieldOffset));
   __ test(map.reg(), Immediate(1 << Map::kIsUndetectable));
   destination()->false_target()->Branch(not_zero);
   __ mov(map.reg(), FieldOperand(obj.reg(), HeapObject::kMapOffset));
   __ movzx_b(map.reg(), FieldOperand(map.reg(), Map::kInstanceTypeOffset));
   __ cmp(map.reg(), FIRST_JS_OBJECT_TYPE);
-  destination()->false_target()->Branch(less);
+  destination()->false_target()->Branch(below);
   __ cmp(map.reg(), LAST_JS_OBJECT_TYPE);
   obj.Unuse();
   map.Unuse();
-  destination()->Split(less_equal);
+  destination()->Split(below_equal);
 }
 
 
 void CodeGenerator::GenerateIsFunction(ZoneList<Expression*>* args) {
   // This generates a fast version of:
   // (%_ClassOf(arg) === 'Function')
   ASSERT(args->length() == 1);
   Load(args->at(0));
   Result obj = frame_->Pop();
   obj.ToRegister();
@@ skipping 92 matching lines @@
   // If the object is a smi, we return null.
   __ test(obj.reg(), Immediate(kSmiTagMask));
   null.Branch(zero);
 
   // Check that the object is a JS object but take special care of JS
   // functions to make sure they have 'Function' as their class.
   { Result tmp = allocator()->Allocate();
     __ mov(obj.reg(), FieldOperand(obj.reg(), HeapObject::kMapOffset));
     __ movzx_b(tmp.reg(), FieldOperand(obj.reg(), Map::kInstanceTypeOffset));
     __ cmp(tmp.reg(), FIRST_JS_OBJECT_TYPE);
-    null.Branch(less);
+    null.Branch(below);
 
     // As long as JS_FUNCTION_TYPE is the last instance type and it is
     // right after LAST_JS_OBJECT_TYPE, we can avoid checking for
     // LAST_JS_OBJECT_TYPE.
     ASSERT(LAST_TYPE == JS_FUNCTION_TYPE);
     ASSERT(JS_FUNCTION_TYPE == LAST_JS_OBJECT_TYPE + 1);
     __ cmp(tmp.reg(), JS_FUNCTION_TYPE);
     function.Branch(equal);
   }
 
@@ skipping 569 matching lines @@
   frame_->Spill(index2.reg());
 
   DeferredSwapElements* deferred = new DeferredSwapElements(object.reg(),
                                                             index1.reg(),
                                                             index2.reg());
 
   // Fetch the map and check if array is in fast case.
   // Check that object doesn't require security checks and
   // has no indexed interceptor.
   __ CmpObjectType(object.reg(), FIRST_JS_OBJECT_TYPE, tmp1.reg());
-  deferred->Branch(less);
+  deferred->Branch(below);
   __ movzx_b(tmp1.reg(), FieldOperand(tmp1.reg(), Map::kBitFieldOffset));
   __ test(tmp1.reg(), Immediate(KeyedLoadIC::kSlowCaseBitFieldMask));
   deferred->Branch(not_zero);
 
   // Check the object's elements are in fast case.
   __ mov(tmp1.reg(), FieldOperand(object.reg(), JSObject::kElementsOffset));
   __ cmp(FieldOperand(tmp1.reg(), HeapObject::kMapOffset),
          Immediate(Factory::fixed_array_map()));
   deferred->Branch(not_equal);
 
@@ skipping 1299 matching lines @@
       __ CmpObjectType(answer.reg(), JS_REGEXP_TYPE, map.reg());
       destination()->false_target()->Branch(equal);
 
       // It can be an undetectable object.
       __ movzx_b(map.reg(), FieldOperand(map.reg(), Map::kBitFieldOffset));
       __ test(map.reg(), Immediate(1 << Map::kIsUndetectable));
       destination()->false_target()->Branch(not_zero);
       __ mov(map.reg(), FieldOperand(answer.reg(), HeapObject::kMapOffset));
       __ movzx_b(map.reg(), FieldOperand(map.reg(), Map::kInstanceTypeOffset));
       __ cmp(map.reg(), FIRST_JS_OBJECT_TYPE);
-      destination()->false_target()->Branch(less);
+      destination()->false_target()->Branch(below);
       __ cmp(map.reg(), LAST_JS_OBJECT_TYPE);
       answer.Unuse();
       map.Unuse();
-      destination()->Split(less_equal);
+      destination()->Split(below_equal);
     } else {
       // Uncommon case: typeof testing against a string literal that is
       // never returned from the typeof operator.
       answer.Unuse();
       destination()->Goto(false);
     }
     return;
   } else if (op == Token::LT &&
              right->AsLiteral() != NULL &&
              right->AsLiteral()->handle()->IsHeapNumber()) {
@@ skipping 3385 matching lines @@
       // There is no test for undetectability in strict equality.
 
       // Get the type of the first operand.
       __ mov(ecx, FieldOperand(eax, HeapObject::kMapOffset));
       __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
 
       // If the first object is a JS object, we have done pointer comparison.
       ASSERT(LAST_TYPE == JS_FUNCTION_TYPE);
       Label first_non_object;
       __ cmp(ecx, FIRST_JS_OBJECT_TYPE);
-      __ j(less, &first_non_object);
+      __ j(below, &first_non_object);
 
       // Return non-zero (eax is not zero)
       Label return_not_equal;
       ASSERT(kHeapObjectTag != 0);
       __ bind(&return_not_equal);
       __ ret(0);
 
       __ bind(&first_non_object);
       // Check for oddballs: true, false, null, undefined.
       __ cmp(ecx, ODDBALL_TYPE);
       __ j(equal, &return_not_equal);
 
       __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset));
       __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
 
       __ cmp(ecx, FIRST_JS_OBJECT_TYPE);
-      __ j(greater_equal, &return_not_equal);
+      __ j(above_equal, &return_not_equal);
 
       // Check for oddballs: true, false, null, undefined.
       __ cmp(ecx, ODDBALL_TYPE);
       __ j(equal, &return_not_equal);
 
       // Fall through to the general case.
     }
     __ bind(&slow);
   }
 
@@ skipping 627 matching lines @@
   // Get the object - go slow case if it's a smi.
   Label slow;
   __ mov(eax, Operand(esp, 2 * kPointerSize));  // 2 ~ return address, function
   __ test(eax, Immediate(kSmiTagMask));
   __ j(zero, &slow, not_taken);
 
   // Check that the left hand is a JS object.
   __ mov(eax, FieldOperand(eax, HeapObject::kMapOffset));  // eax - object map
   __ movzx_b(ecx, FieldOperand(eax, Map::kInstanceTypeOffset));  // ecx - type
   __ cmp(ecx, FIRST_JS_OBJECT_TYPE);
-  __ j(less, &slow, not_taken);
+  __ j(below, &slow, not_taken);
   __ cmp(ecx, LAST_JS_OBJECT_TYPE);
-  __ j(greater, &slow, not_taken);
+  __ j(above, &slow, not_taken);
 
   // Get the prototype of the function.
   __ mov(edx, Operand(esp, 1 * kPointerSize));  // 1 ~ return address
   // edx is function, eax is map.
 
   // Look up the function and the map in the instanceof cache.
   Label miss;
   ExternalReference roots_address = ExternalReference::roots_address();
   __ mov(ecx, Immediate(Heap::kInstanceofCacheFunctionRootIndex));
   __ cmp(edx, Operand::StaticArray(ecx, times_pointer_size, roots_address));
   __ j(not_equal, &miss);
   __ mov(ecx, Immediate(Heap::kInstanceofCacheMapRootIndex));
   __ cmp(eax, Operand::StaticArray(ecx, times_pointer_size, roots_address));
   __ j(not_equal, &miss);
   __ mov(ecx, Immediate(Heap::kInstanceofCacheAnswerRootIndex));
   __ mov(eax, Operand::StaticArray(ecx, times_pointer_size, roots_address));
   __ ret(2 * kPointerSize);
 
   __ bind(&miss);
   __ TryGetFunctionPrototype(edx, ebx, ecx, &slow);
 
   // Check that the function prototype is a JS object.
   __ test(ebx, Immediate(kSmiTagMask));
   __ j(zero, &slow, not_taken);
   __ mov(ecx, FieldOperand(ebx, HeapObject::kMapOffset));
   __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
   __ cmp(ecx, FIRST_JS_OBJECT_TYPE);
-  __ j(less, &slow, not_taken);
+  __ j(below, &slow, not_taken);
   __ cmp(ecx, LAST_JS_OBJECT_TYPE);
-  __ j(greater, &slow, not_taken);
+  __ j(above, &slow, not_taken);
 
   // Register mapping:
   //   eax is object map.
   //   edx is function.
   //   ebx is function prototype.
   __ mov(ecx, Immediate(Heap::kInstanceofCacheMapRootIndex));
   __ mov(Operand::StaticArray(ecx, times_pointer_size, roots_address), eax);
   __ mov(ecx, Immediate(Heap::kInstanceofCacheFunctionRootIndex));
   __ mov(Operand::StaticArray(ecx, times_pointer_size, roots_address), edx);
 
@@ skipping 979 matching lines @@
   // tagged as a small integer.
   __ bind(&runtime);
   __ TailCallRuntime(Runtime::kStringCompare, 2, 1);
 }
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32