diff options
Diffstat (limited to 'js/src/jit/MIR.h')
| -rw-r--r-- | js/src/jit/MIR.h | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/js/src/jit/MIR.h b/js/src/jit/MIR.h index 0c1e77f80..cafdbab71 100644 --- a/js/src/jit/MIR.h +++ b/js/src/jit/MIR.h @@ -375,7 +375,7 @@ class AliasSet { Element = 1 << 1, // A Value member of obj->elements or // a typed object. UnboxedElement = 1 << 2, // An unboxed scalar or reference member of - // typed object. + // typed object or unboxed object. DynamicSlot = 1 << 3, // A Value member of obj->slots. FixedSlot = 1 << 4, // A Value member of obj->fixedSlots(). DOMProperty = 1 << 5, // A DOM property @@ -3758,9 +3758,14 @@ class MObjectState { private: uint32_t numSlots_; - uint32_t numFixedSlots_; + uint32_t numFixedSlots_; // valid if isUnboxed() == false. + OperandIndexMap* operandIndex_; // valid if isUnboxed() == true. - MObjectState(JSObject *templateObject); + bool isUnboxed() const { + return operandIndex_ != nullptr; + } + + MObjectState(JSObject *templateObject, OperandIndexMap* operandIndex); explicit MObjectState(MObjectState* state); MOZ_MUST_USE bool init(TempAllocator& alloc, MDefinition* obj); @@ -3820,6 +3825,18 @@ class MObjectState setSlot(slot + numFixedSlots(), def); } + // Interface reserved for unboxed objects. + bool hasOffset(uint32_t offset) const { + MOZ_ASSERT(isUnboxed()); + return offset < operandIndex_->map.length() && operandIndex_->map[offset] != 0; + } + MDefinition* getOffset(uint32_t offset) const { + return getOperand(operandIndex_->map[offset]); + } + void setOffset(uint32_t offset, MDefinition* def) { + replaceOperand(operandIndex_->map[offset], def); + } + MOZ_MUST_USE bool writeRecoverData(CompactBufferWriter& writer) const override; bool canRecoverOnBailout() const override { return true; |