diff options
Diffstat (limited to 'deps/v8/src/compiler/operation-typer.cc')
| -rw-r--r-- | deps/v8/src/compiler/operation-typer.cc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/deps/v8/src/compiler/operation-typer.cc b/deps/v8/src/compiler/operation-typer.cc index 46d6557b21..5819655633 100644 --- a/deps/v8/src/compiler/operation-typer.cc +++ b/deps/v8/src/compiler/operation-typer.cc @@ -24,6 +24,8 @@ OperationTyper::OperationTyper(Isolate* isolate, Zone* zone) Type* truncating_to_zero = Type::MinusZeroOrNaN(); DCHECK(!truncating_to_zero->Maybe(Type::Integral32())); + singleton_NaN_string_ = Type::HeapConstant(factory->NaN_string(), zone); + singleton_zero_string_ = Type::HeapConstant(factory->zero_string(), zone); singleton_false_ = Type::HeapConstant(factory->false_value(), zone); singleton_true_ = Type::HeapConstant(factory->true_value(), zone); singleton_the_hole_ = Type::HeapConstant(factory->the_hole_value(), zone); @@ -503,6 +505,14 @@ Type* OperationTyper::NumberToInt32(Type* type) { return Type::Signed32(); } +Type* OperationTyper::NumberToString(Type* type) { + DCHECK(type->Is(Type::Number())); + + if (type->Is(Type::NaN())) return singleton_NaN_string_; + if (type->Is(cache_.kZeroOrMinusZero)) return singleton_zero_string_; + return Type::SeqString(); +} + Type* OperationTyper::NumberToUint32(Type* type) { DCHECK(type->Is(Type::Number())); |