Version 3.20.11.1

src/arm/lithium-codegen-arm.cc

 // Copyright 2012 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 1724 matching lines @@
         } else {
           if (instr->can_deopt()) {
             __ tst(left, Operand(0x80000000));
             DeoptimizeIf(ne, instr->environment());
           }
           __ Move(result, left);
         }
         break;
       case Token::SHL:
         if (shift_count != 0) {
-          if (instr->hydrogen_value()->representation().IsSmi() &&
-              instr->can_deopt()) {
-            __ mov(result, Operand(left, LSL, shift_count - 1));
-            __ SmiTag(result, result, SetCC);
-            DeoptimizeIf(vs, instr->environment());
-          } else {
-            __ mov(result, Operand(left, LSL, shift_count));
-          }
+          __ mov(result, Operand(left, LSL, shift_count));
         } else {
           __ Move(result, left);
         }
         break;
       default:
         UNREACHABLE();
         break;
     }
   }
 }
@@ skipping 52 matching lines @@
 
 
 void LCodeGen::DoConstantD(LConstantD* instr) {
   ASSERT(instr->result()->IsDoubleRegister());
   DwVfpRegister result = ToDoubleRegister(instr->result());
   double v = instr->value();
   __ Vmov(result, v, scratch0());
 }
 
 
-void LCodeGen::DoConstantE(LConstantE* instr) {
-  __ mov(ToRegister(instr->result()), Operand(instr->value()));
-}
-
-
 void LCodeGen::DoConstantT(LConstantT* instr) {
   Handle<Object> value = instr->value();
   AllowDeferredHandleDereference smi_check;
   __ LoadObject(ToRegister(instr->result()), value);
 }
 
 
 void LCodeGen::DoMapEnumLength(LMapEnumLength* instr) {
   Register result = ToRegister(instr->result());
   Register map = ToRegister(instr->value());
@@ skipping 1160 matching lines @@
   }
 
   __ bind(&skip_assignment);
 }
 
 
 void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) {
   HObjectAccess access = instr->hydrogen()->access();
   int offset = access.offset();
   Register object = ToRegister(instr->object());
-
-  if (access.IsExternalMemory()) {
-    Register result = ToRegister(instr->result());
-    __ ldr(result, MemOperand(object, offset));
-    return;
-  }
-
   if (instr->hydrogen()->representation().IsDouble()) {
     DwVfpRegister result = ToDoubleRegister(instr->result());
     __ vldr(result, FieldMemOperand(object, offset));
     return;
   }
 
   Register result = ToRegister(instr->result());
   if (access.IsInobject()) {
     __ ldr(result, FieldMemOperand(object, offset));
   } else {
@@ skipping 1159 matching lines @@
   Register base = ToRegister(instr->base_object());
   __ add(result, base, Operand(instr->offset()));
 }
 
 
 void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
   Representation representation = instr->representation();
 
   Register object = ToRegister(instr->object());
   Register scratch = scratch0();
+
   HObjectAccess access = instr->hydrogen()->access();
   int offset = access.offset();
 
-  if (access.IsExternalMemory()) {
-    Register value = ToRegister(instr->value());
-    __ str(value, MemOperand(object, offset));
-    return;
-  }
-
   Handle<Map> transition = instr->transition();
 
   if (FLAG_track_heap_object_fields && representation.IsHeapObject()) {
     Register value = ToRegister(instr->value());
     if (!instr->hydrogen()->value()->type().IsHeapObject()) {
       __ SmiTst(value);
       DeoptimizeIf(eq, instr->environment());
     }
   } else if (FLAG_track_double_fields && representation.IsDouble()) {
     ASSERT(transition.is_null());
@@ skipping 302 matching lines @@
   __ cmp(scratch, Operand(from_map));
   __ b(ne, &not_applicable);
 
   if (IsSimpleMapChangeTransition(from_kind, to_kind)) {
     Register new_map_reg = ToRegister(instr->new_map_temp());
     __ mov(new_map_reg, Operand(to_map));
     __ str(new_map_reg, FieldMemOperand(object_reg, HeapObject::kMapOffset));
     // Write barrier.
     __ RecordWriteField(object_reg, HeapObject::kMapOffset, new_map_reg,
                         scratch, GetLinkRegisterState(), kDontSaveFPRegs);
-  } else {
+  } else if (FLAG_compiled_transitions) {
     PushSafepointRegistersScope scope(this, Safepoint::kWithRegisters);
     __ Move(r0, object_reg);
     __ Move(r1, to_map);
     TransitionElementsKindStub stub(from_kind, to_kind);
     __ CallStub(&stub);
     RecordSafepointWithRegisters(
         instr->pointer_map(), 0, Safepoint::kNoLazyDeopt);
+  } else if (IsFastSmiElementsKind(from_kind) &&
+             IsFastDoubleElementsKind(to_kind)) {
+    Register fixed_object_reg = ToRegister(instr->temp());
+    ASSERT(fixed_object_reg.is(r2));
+    Register new_map_reg = ToRegister(instr->new_map_temp());
+    ASSERT(new_map_reg.is(r3));
+    __ mov(new_map_reg, Operand(to_map));
+    __ mov(fixed_object_reg, object_reg);
+    CallCode(isolate()->builtins()->TransitionElementsSmiToDouble(),
+             RelocInfo::CODE_TARGET, instr);
+  } else if (IsFastDoubleElementsKind(from_kind) &&
+             IsFastObjectElementsKind(to_kind)) {
+    Register fixed_object_reg = ToRegister(instr->temp());
+    ASSERT(fixed_object_reg.is(r2));
+    Register new_map_reg = ToRegister(instr->new_map_temp());
+    ASSERT(new_map_reg.is(r3));
+    __ mov(new_map_reg, Operand(to_map));
+    __ mov(fixed_object_reg, object_reg);
+    CallCode(isolate()->builtins()->TransitionElementsDoubleToObject(),
+             RelocInfo::CODE_TARGET, instr);
+  } else {
+    UNREACHABLE();
   }
   __ bind(&not_applicable);
 }
 
 
 void LCodeGen::DoTrapAllocationMemento(LTrapAllocationMemento* instr) {
   Register object = ToRegister(instr->object());
   Register temp = ToRegister(instr->temp());
   __ TestJSArrayForAllocationMemento(object, temp);
   DeoptimizeIf(eq, instr->environment());
@@ skipping 1291 matching lines @@
   __ sub(scratch, result, Operand::PointerOffsetFromSmiKey(index));
   __ ldr(result, FieldMemOperand(scratch,
                                  FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal