| Index: src/full-codegen/mips/full-codegen-mips.cc | 
| diff --git a/src/full-codegen/mips/full-codegen-mips.cc b/src/full-codegen/mips/full-codegen-mips.cc | 
| index 9e033e2d567e9e0321bb1137b5778a88c3315fd2..9fe4bbac1c3f2cc4996794b95fa28a7019803a6e 100644 | 
| --- a/src/full-codegen/mips/full-codegen-mips.cc | 
| +++ b/src/full-codegen/mips/full-codegen-mips.cc | 
| @@ -3421,6 +3421,32 @@ void FullCodeGenerator::EmitIsSpecObject(CallRuntime* expr) { | 
| } | 
|  | 
|  | 
| +void FullCodeGenerator::EmitIsSimdObject(CallRuntime* expr) { | 
| +  ZoneList<Expression*>* args = expr->arguments(); | 
| +  DCHECK(args->length() == 1); | 
| + | 
| +  VisitForAccumulatorValue(args->at(0)); | 
| + | 
| +  Label materialize_true, materialize_false; | 
| +  Label* if_true = NULL; | 
| +  Label* if_false = NULL; | 
| +  Label* fall_through = NULL; | 
| +  context()->PrepareTest(&materialize_true, &materialize_false, &if_true, | 
| +                         &if_false, &fall_through); | 
| + | 
| +  __ JumpIfSmi(v0, if_false); | 
| +  Register map = a1; | 
| +  Register type_reg = a2; | 
| +  __ GetObjectType(v0, map, type_reg); | 
| +  __ Subu(type_reg, type_reg, Operand(FIRST_SIMD_VALUE_TYPE)); | 
| +  PrepareForBailoutBeforeSplit(expr, true, if_true, if_false); | 
| +  Split(ls, type_reg, Operand(LAST_SIMD_VALUE_TYPE - FIRST_SIMD_VALUE_TYPE), | 
| +        if_true, if_false, fall_through); | 
| + | 
| +  context()->Plug(if_true, if_false); | 
| +} | 
| + | 
| + | 
| void FullCodeGenerator::EmitIsUndetectableObject(CallRuntime* expr) { | 
| ZoneList<Expression*>* args = expr->arguments(); | 
| DCHECK(args->length() == 1); | 
| @@ -5107,6 +5133,30 @@ void FullCodeGenerator::EmitLiteralCompareTypeof(Expression* expr, | 
| __ JumpIfSmi(v0, if_false); | 
| __ GetObjectType(v0, v0, a1); | 
| Split(eq, a1, Operand(FLOAT32X4_TYPE), if_true, if_false, fall_through); | 
| +  } else if (String::Equals(check, factory->int32x4_string())) { | 
| +    __ JumpIfSmi(v0, if_false); | 
| +    __ GetObjectType(v0, v0, a1); | 
| +    Split(eq, a1, Operand(INT32X4_TYPE), if_true, if_false, fall_through); | 
| +  } else if (String::Equals(check, factory->bool32x4_string())) { | 
| +    __ JumpIfSmi(v0, if_false); | 
| +    __ GetObjectType(v0, v0, a1); | 
| +    Split(eq, a1, Operand(BOOL32X4_TYPE), if_true, if_false, fall_through); | 
| +  } else if (String::Equals(check, factory->int16x8_string())) { | 
| +    __ JumpIfSmi(v0, if_false); | 
| +    __ GetObjectType(v0, v0, a1); | 
| +    Split(eq, a1, Operand(INT16X8_TYPE), if_true, if_false, fall_through); | 
| +  } else if (String::Equals(check, factory->bool16x8_string())) { | 
| +    __ JumpIfSmi(v0, if_false); | 
| +    __ GetObjectType(v0, v0, a1); | 
| +    Split(eq, a1, Operand(BOOL16X8_TYPE), if_true, if_false, fall_through); | 
| +  } else if (String::Equals(check, factory->int8x16_string())) { | 
| +    __ JumpIfSmi(v0, if_false); | 
| +    __ GetObjectType(v0, v0, a1); | 
| +    Split(eq, a1, Operand(INT8X16_TYPE), if_true, if_false, fall_through); | 
| +  } else if (String::Equals(check, factory->bool8x16_string())) { | 
| +    __ JumpIfSmi(v0, if_false); | 
| +    __ GetObjectType(v0, v0, a1); | 
| +    Split(eq, a1, Operand(BOOL8X16_TYPE), if_true, if_false, fall_through); | 
| } else if (String::Equals(check, factory->boolean_string())) { | 
| __ LoadRoot(at, Heap::kTrueValueRootIndex); | 
| __ Branch(if_true, eq, v0, Operand(at)); | 
|  |