OLD | NEW |
1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/double.h" | 8 #include "src/double.h" |
9 #include "src/factory.h" | 9 #include "src/factory.h" |
10 #include "src/hydrogen-infer-representation.h" | 10 #include "src/hydrogen-infer-representation.h" |
(...skipping 2797 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
2808 if (object->IsJSObject()) { | 2808 if (object->IsJSObject()) { |
2809 // Try to eagerly migrate JSObjects that have deprecated maps. | 2809 // Try to eagerly migrate JSObjects that have deprecated maps. |
2810 Handle<JSObject> js_object = Handle<JSObject>::cast(object); | 2810 Handle<JSObject> js_object = Handle<JSObject>::cast(object); |
2811 if (js_object->map()->is_deprecated()) { | 2811 if (js_object->map()->is_deprecated()) { |
2812 JSObject::TryMigrateInstance(js_object); | 2812 JSObject::TryMigrateInstance(js_object); |
2813 } | 2813 } |
2814 } | 2814 } |
2815 r = Representation::Tagged(); | 2815 r = Representation::Tagged(); |
2816 } | 2816 } |
2817 } | 2817 } |
| 2818 if (r.IsSmi()) { |
| 2819 // If we have an existing handle, zap it, because it might be a heap |
| 2820 // number which we must not re-use when copying this HConstant to |
| 2821 // Tagged representation later, because having Smi representation now |
| 2822 // could cause heap object checks not to get emitted. |
| 2823 object_ = Unique<Object>(Handle<Object>::null()); |
| 2824 } |
2818 set_representation(r); | 2825 set_representation(r); |
2819 SetFlag(kUseGVN); | 2826 SetFlag(kUseGVN); |
2820 } | 2827 } |
2821 | 2828 |
2822 | 2829 |
2823 bool HConstant::ImmortalImmovable() const { | 2830 bool HConstant::ImmortalImmovable() const { |
2824 if (has_int32_value_) { | 2831 if (has_int32_value_) { |
2825 return false; | 2832 return false; |
2826 } | 2833 } |
2827 if (has_double_value_) { | 2834 if (has_double_value_) { |
(...skipping 1940 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
4768 break; | 4775 break; |
4769 case HObjectAccess::kExternalMemory: | 4776 case HObjectAccess::kExternalMemory: |
4770 os << "[external-memory]"; | 4777 os << "[external-memory]"; |
4771 break; | 4778 break; |
4772 } | 4779 } |
4773 | 4780 |
4774 return os << "@" << access.offset(); | 4781 return os << "@" << access.offset(); |
4775 } | 4782 } |
4776 | 4783 |
4777 } } // namespace v8::internal | 4784 } } // namespace v8::internal |
OLD | NEW |