[cleanup] Drop handwritten KeyedStoreIC code

src/ia32/codegen-ia32.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/ia32/codegen-ia32.h"
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/codegen.h"
 #include "src/heap/heap.h"
@@ skipping 467 matching lines @@
 }
 
 
 #undef __
 
 // -------------------------------------------------------------------------
 // Code generators
 
 #define __ ACCESS_MASM(masm)
 
-
-void ElementsTransitionGenerator::GenerateMapChangeElementsTransition(
-    MacroAssembler* masm,
-    Register receiver,
-    Register key,
-    Register value,
-    Register target_map,
-    AllocationSiteMode mode,
-    Label* allocation_memento_found) {
-  Register scratch = edi;
-  DCHECK(!AreAliased(receiver, key, value, target_map, scratch));
-
-  if (mode == TRACK_ALLOCATION_SITE) {
-    DCHECK(allocation_memento_found != NULL);
-    __ JumpIfJSArrayHasAllocationMemento(
-        receiver, scratch, allocation_memento_found);
-  }
-
-  // Set transitioned map.
-  __ mov(FieldOperand(receiver, HeapObject::kMapOffset), target_map);
-  __ RecordWriteField(receiver,
-                      HeapObject::kMapOffset,
-                      target_map,
-                      scratch,
-                      kDontSaveFPRegs,
-                      EMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-}
-
-
-void ElementsTransitionGenerator::GenerateSmiToDouble(
-    MacroAssembler* masm,
-    Register receiver,
-    Register key,
-    Register value,
-    Register target_map,
-    AllocationSiteMode mode,
-    Label* fail) {
-  // Return address is on the stack.
-  DCHECK(receiver.is(edx));
-  DCHECK(key.is(ecx));
-  DCHECK(value.is(eax));
-  DCHECK(target_map.is(ebx));
-
-  Label loop, entry, convert_hole, gc_required, only_change_map;
-
-  if (mode == TRACK_ALLOCATION_SITE) {
-    __ JumpIfJSArrayHasAllocationMemento(edx, edi, fail);
-  }
-
-  // Check for empty arrays, which only require a map transition and no changes
-  // to the backing store.
-  __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
-  __ cmp(edi, Immediate(masm->isolate()->factory()->empty_fixed_array()));
-  __ j(equal, &only_change_map);
-
-  __ push(eax);
-  __ push(ebx);
-  __ push(esi);
-
-  __ mov(edi, FieldOperand(edi, FixedArray::kLengthOffset));
-
-  // Allocate new FixedDoubleArray.
-  // edx: receiver
-  // edi: length of source FixedArray (smi-tagged)
-  AllocationFlags flags = static_cast<AllocationFlags>(DOUBLE_ALIGNMENT);
-  __ Allocate(FixedDoubleArray::kHeaderSize, times_8, edi,
-              REGISTER_VALUE_IS_SMI, eax, ebx, no_reg, &gc_required, flags);
-
-  // eax: destination FixedDoubleArray
-  // edi: number of elements
-  // edx: receiver
-  __ mov(FieldOperand(eax, HeapObject::kMapOffset),
-         Immediate(masm->isolate()->factory()->fixed_double_array_map()));
-  __ mov(FieldOperand(eax, FixedDoubleArray::kLengthOffset), edi);
-  __ mov(esi, FieldOperand(edx, JSObject::kElementsOffset));
-  // Replace receiver's backing store with newly created FixedDoubleArray.
-  __ mov(FieldOperand(edx, JSObject::kElementsOffset), eax);
-  __ mov(ebx, eax);
-  __ RecordWriteField(edx,
-                      JSObject::kElementsOffset,
-                      ebx,
-                      edi,
-                      kDontSaveFPRegs,
-                      EMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-
-  __ mov(edi, FieldOperand(esi, FixedArray::kLengthOffset));
-
-  // Prepare for conversion loop.
-  ExternalReference canonical_the_hole_nan_reference =
-      ExternalReference::address_of_the_hole_nan();
-  XMMRegister the_hole_nan = xmm1;
-  __ movsd(the_hole_nan,
-           Operand::StaticVariable(canonical_the_hole_nan_reference));
-  __ jmp(&entry);
-
-  // Call into runtime if GC is required.
-  __ bind(&gc_required);
-
-  // Restore registers before jumping into runtime.
-  __ pop(esi);
-  __ pop(ebx);
-  __ pop(eax);
-  __ jmp(fail);
-
-  // Convert and copy elements
-  // esi: source FixedArray
-  __ bind(&loop);
-  __ mov(ebx, FieldOperand(esi, edi, times_2, FixedArray::kHeaderSize));
-  // ebx: current element from source
-  // edi: index of current element
-  __ JumpIfNotSmi(ebx, &convert_hole);
-
-  // Normal smi, convert it to double and store.
-  __ SmiUntag(ebx);
-  __ Cvtsi2sd(xmm0, ebx);
-  __ movsd(FieldOperand(eax, edi, times_4, FixedDoubleArray::kHeaderSize),
-           xmm0);
-  __ jmp(&entry);
-
-  // Found hole, store hole_nan_as_double instead.
-  __ bind(&convert_hole);
-
-  if (FLAG_debug_code) {
-    __ cmp(ebx, masm->isolate()->factory()->the_hole_value());
-    __ Assert(equal, kObjectFoundInSmiOnlyArray);
-  }
-
-  __ movsd(FieldOperand(eax, edi, times_4, FixedDoubleArray::kHeaderSize),
-           the_hole_nan);
-
-  __ bind(&entry);
-  __ sub(edi, Immediate(Smi::FromInt(1)));
-  __ j(not_sign, &loop);
-
-  // Restore registers.
-  __ pop(esi);
-  __ pop(ebx);
-  __ pop(eax);
-
-  __ bind(&only_change_map);
-  // eax: value
-  // ebx: target map
-  // Set transitioned map.
-  __ mov(FieldOperand(edx, HeapObject::kMapOffset), ebx);
-  __ RecordWriteField(edx,
-                      HeapObject::kMapOffset,
-                      ebx,
-                      edi,
-                      kDontSaveFPRegs,
-                      OMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-}
-
-
-void ElementsTransitionGenerator::GenerateDoubleToObject(
-    MacroAssembler* masm,
-    Register receiver,
-    Register key,
-    Register value,
-    Register target_map,
-    AllocationSiteMode mode,
-    Label* fail) {
-  // Return address is on the stack.
-  DCHECK(receiver.is(edx));
-  DCHECK(key.is(ecx));
-  DCHECK(value.is(eax));
-  DCHECK(target_map.is(ebx));
-
-  Label loop, entry, convert_hole, gc_required, only_change_map, success;
-
-  if (mode == TRACK_ALLOCATION_SITE) {
-    __ JumpIfJSArrayHasAllocationMemento(edx, edi, fail);
-  }
-
-  // Check for empty arrays, which only require a map transition and no changes
-  // to the backing store.
-  __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
-  __ cmp(edi, Immediate(masm->isolate()->factory()->empty_fixed_array()));
-  __ j(equal, &only_change_map);
-
-  __ push(esi);
-  __ push(eax);
-  __ push(edx);
-  __ push(ebx);
-
-  __ mov(ebx, FieldOperand(edi, FixedDoubleArray::kLengthOffset));
-
-  // Allocate new FixedArray.
-  // ebx: length of source FixedDoubleArray (smi-tagged)
-  __ lea(edi, Operand(ebx, times_2, FixedArray::kHeaderSize));
-  __ Allocate(edi, eax, esi, no_reg, &gc_required, NO_ALLOCATION_FLAGS);
-
-  // eax: destination FixedArray
-  // ebx: number of elements
-  __ mov(FieldOperand(eax, HeapObject::kMapOffset),
-         Immediate(masm->isolate()->factory()->fixed_array_map()));
-  __ mov(FieldOperand(eax, FixedArray::kLengthOffset), ebx);
-  __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
-
-  // Allocating heap numbers in the loop below can fail and cause a jump to
-  // gc_required. We can't leave a partly initialized FixedArray behind,
-  // so pessimistically fill it with holes now.
-  Label initialization_loop, initialization_loop_entry;
-  __ jmp(&initialization_loop_entry, Label::kNear);
-  __ bind(&initialization_loop);
-  __ mov(FieldOperand(eax, ebx, times_2, FixedArray::kHeaderSize),
-         masm->isolate()->factory()->the_hole_value());
-  __ bind(&initialization_loop_entry);
-  __ sub(ebx, Immediate(Smi::FromInt(1)));
-  __ j(not_sign, &initialization_loop);
-
-  __ mov(ebx, FieldOperand(edi, FixedDoubleArray::kLengthOffset));
-  __ jmp(&entry);
-
-  // ebx: target map
-  // edx: receiver
-  // Set transitioned map.
-  __ bind(&only_change_map);
-  __ mov(FieldOperand(edx, HeapObject::kMapOffset), ebx);
-  __ RecordWriteField(edx,
-                      HeapObject::kMapOffset,
-                      ebx,
-                      edi,
-                      kDontSaveFPRegs,
-                      OMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-  __ jmp(&success);
-
-  // Call into runtime if GC is required.
-  __ bind(&gc_required);
-  __ pop(ebx);
-  __ pop(edx);
-  __ pop(eax);
-  __ pop(esi);
-  __ jmp(fail);
-
-  // Box doubles into heap numbers.
-  // edi: source FixedDoubleArray
-  // eax: destination FixedArray
-  __ bind(&loop);
-  // ebx: index of current element (smi-tagged)
-  uint32_t offset = FixedDoubleArray::kHeaderSize + sizeof(kHoleNanLower32);
-  __ cmp(FieldOperand(edi, ebx, times_4, offset), Immediate(kHoleNanUpper32));
-  __ j(equal, &convert_hole);
-
-  // Non-hole double, copy value into a heap number.
-  __ AllocateHeapNumber(edx, esi, no_reg, &gc_required);
-  // edx: new heap number
-  __ movsd(xmm0,
-           FieldOperand(edi, ebx, times_4, FixedDoubleArray::kHeaderSize));
-  __ movsd(FieldOperand(edx, HeapNumber::kValueOffset), xmm0);
-  __ mov(FieldOperand(eax, ebx, times_2, FixedArray::kHeaderSize), edx);
-  __ mov(esi, ebx);
-  __ RecordWriteArray(eax,
-                      edx,
-                      esi,
-                      kDontSaveFPRegs,
-                      EMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-  __ jmp(&entry, Label::kNear);
-
-  // Replace the-hole NaN with the-hole pointer.
-  __ bind(&convert_hole);
-  __ mov(FieldOperand(eax, ebx, times_2, FixedArray::kHeaderSize),
-         masm->isolate()->factory()->the_hole_value());
-
-  __ bind(&entry);
-  __ sub(ebx, Immediate(Smi::FromInt(1)));
-  __ j(not_sign, &loop);
-
-  __ pop(ebx);
-  __ pop(edx);
-  // ebx: target map
-  // edx: receiver
-  // Set transitioned map.
-  __ mov(FieldOperand(edx, HeapObject::kMapOffset), ebx);
-  __ RecordWriteField(edx,
-                      HeapObject::kMapOffset,
-                      ebx,
-                      edi,
-                      kDontSaveFPRegs,
-                      OMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-  // Replace receiver's backing store with newly created and filled FixedArray.
-  __ mov(FieldOperand(edx, JSObject::kElementsOffset), eax);
-  __ RecordWriteField(edx,
-                      JSObject::kElementsOffset,
-                      eax,
-                      edi,
-                      kDontSaveFPRegs,
-                      EMIT_REMEMBERED_SET,
-                      OMIT_SMI_CHECK);
-
-  // Restore registers.
-  __ pop(eax);
-  __ pop(esi);
-
-  __ bind(&success);
-}
-
-
 void StringCharLoadGenerator::Generate(MacroAssembler* masm,
                                        Factory* factory,
                                        Register string,
                                        Register index,
                                        Register result,
                                        Label* call_runtime) {
   // Fetch the instance type of the receiver into result register.
   __ mov(result, FieldOperand(string, HeapObject::kMapOffset));
   __ movzx_b(result, FieldOperand(result, Map::kInstanceTypeOffset));
 
@@ skipping 147 matching lines @@
     CodePatcher patcher(isolate, sequence, young_length);
     patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32);
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32