Reverting 2768.

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
===================================================================
--- src/ia32/macro-assembler-ia32.cc	(revision 2768)
+++ src/ia32/macro-assembler-ia32.cc	(working copy)
@@ -620,146 +620,6 @@
 }
 
 
-void MacroAssembler::LoadAllocationTopHelper(
-    Register result,
-    Register result_end,
-    Register scratch,
-    bool result_contains_top_on_entry) {
-  ExternalReference new_space_allocation_top =
-      ExternalReference::new_space_allocation_top_address();
-
-  // Just return if allocation top is already known.
-  if (result_contains_top_on_entry) {
-    // No use of scratch if allocation top is provided.
-    ASSERT(scratch.is(no_reg));
-    return;
-  }
-
-  // Move address of new object to result. Use scratch register if available.
-  if (scratch.is(no_reg)) {
-    mov(result, Operand::StaticVariable(new_space_allocation_top));
-  } else {
-    ASSERT(!scratch.is(result_end));
-    mov(Operand(scratch), Immediate(new_space_allocation_top));
-    mov(result, Operand(scratch, 0));
-  }
-}
-
-
-void MacroAssembler::UpdateAllocationTopHelper(Register result_end,
-                                               Register scratch) {
-  ExternalReference new_space_allocation_top =
-      ExternalReference::new_space_allocation_top_address();
-
-  // Update new top. Use scratch if available.
-  if (scratch.is(no_reg)) {
-    mov(Operand::StaticVariable(new_space_allocation_top), result_end);
-  } else {
-    mov(Operand(scratch, 0), result_end);
-  }
-}
-
-void MacroAssembler::AllocateObjectInNewSpace(
-    int object_size,
-    Register result,
-    Register result_end,
-    Register scratch,
-    Label* gc_required,
-    bool result_contains_top_on_entry) {
-  ASSERT(!result.is(result_end));
-
-  // Load address of new object into result.
-  ExternalReference new_space_allocation_limit =
-      ExternalReference::new_space_allocation_limit_address();
-  LoadAllocationTopHelper(result,
-                          result_end,
-                          scratch,
-                          result_contains_top_on_entry);
-
-  // Calculate new top and bail out if new space is exhausted.
-  lea(result_end, Operand(result, object_size));
-  cmp(result_end, Operand::StaticVariable(new_space_allocation_limit));
-  j(above, gc_required, not_taken);
-
-  // Update allocation top.
-  UpdateAllocationTopHelper(result_end, scratch);
-}
-
-
-void MacroAssembler::AllocateObjectInNewSpace(
-    int header_size,
-    ScaleFactor element_size,
-    Register element_count,
-    Register result,
-    Register result_end,
-    Register scratch,
-    Label* gc_required,
-    bool result_contains_top_on_entry) {
-  ASSERT(!result.is(result_end));
-
-  // Load address of new object into result.
-  LoadAllocationTopHelper(result,
-                          result_end,
-                          scratch,
-                          result_contains_top_on_entry);
-
-  // Calculate new top and bail out if new space is exhausted.
-  ExternalReference new_space_allocation_limit =
-      ExternalReference::new_space_allocation_limit_address();
-  lea(result_end, Operand(result, element_count, element_size, header_size));
-  cmp(result, Operand::StaticVariable(new_space_allocation_limit));
-  j(above, gc_required);
-
-  // Update allocation top.
-  UpdateAllocationTopHelper(result_end, scratch);
-}
-
-
-void MacroAssembler::AllocateObjectInNewSpace(
-    Register object_size,
-    Register result,
-    Register result_end,
-    Register scratch,
-    Label* gc_required,
-    bool result_contains_top_on_entry) {
-  ASSERT(!result.is(result_end));
-
-  // Load address of new object into result.
-  LoadAllocationTopHelper(result,
-                          result_end,
-                          scratch,
-                          result_contains_top_on_entry);
-
-
-  // Calculate new top and bail out if new space is exhausted.
-  ExternalReference new_space_allocation_limit =
-      ExternalReference::new_space_allocation_limit_address();
-  if (!object_size.is(result_end)) {
-    mov(result_end, object_size);
-  }
-  add(result_end, Operand(result));
-  cmp(result_end, Operand::StaticVariable(new_space_allocation_limit));
-  j(above, gc_required, not_taken);
-
-  // Update allocation top.
-  UpdateAllocationTopHelper(result_end, scratch);
-}
-
-
-void MacroAssembler::UndoAllocationInNewSpace(Register object) {
-  ExternalReference new_space_allocation_top =
-      ExternalReference::new_space_allocation_top_address();
-
-  // Make sure the object has no tag before resetting top.
-  and_(Operand(object), Immediate(~kHeapObjectTagMask));
-#ifdef DEBUG
-  cmp(object, Operand::StaticVariable(new_space_allocation_top));
-  Check(below, "Undo allocation of non allocated memory");
-#endif
-  mov(Operand::StaticVariable(new_space_allocation_top), object);
-}
-
-
 void MacroAssembler::NegativeZeroTest(CodeGenerator* cgen,
                                       Register result,
                                       Register op,