return false;
}
- /// getWidenVectorType: given a vector type, returns the type to widen to
- /// (e.g., v7i8 to v8i8). If the vector type is legal, it returns itself.
- /// If there is no vector type that we want to widen to, returns MVT::Other
- /// When and were to widen is target dependent based on the cost of
- /// scalarizing vs using the wider vector type.
- virtual EVT getWidenVectorType(EVT VT) const;
-
/// isFPImmLegal - Returns true if the target can instruction select the
/// specified FP immediate natively. If false, the legalizer will materialize
/// the FP immediate as a load from a constant pool.
return 1;
}
-/// getWidenVectorType: given a vector type, returns the type to widen to
-/// (e.g., v7i8 to v8i8). If the vector type is legal, it returns itself.
-/// If there is no vector type that we want to widen to, returns MVT::Other
-/// When and where to widen is target dependent based on the cost of
-/// scalarizing vs using the wider vector type.
-EVT TargetLowering::getWidenVectorType(EVT VT) const {
- assert(VT.isVector());
- if (isTypeLegal(VT))
- return VT;
-
- // Default is not to widen until moved to LegalizeTypes
- return MVT::Other;
-}
-
/// getByValTypeAlignment - Return the desired alignment for ByVal aggregate
/// function arguments in the caller parameter area. This is the actual
/// alignment, not its logarithm.
return Res;
}
-
-//===----------------------------------------------------------------------===//
-// X86 Widen vector type
-//===----------------------------------------------------------------------===//
-
-/// getWidenVectorType: given a vector type, returns the type to widen
-/// to (e.g., v7i8 to v8i8). If the vector type is legal, it returns itself.
-/// If there is no vector type that we want to widen to, returns MVT::Other
-/// When and where to widen is target dependent based on the cost of
-/// scalarizing vs using the wider vector type.
-
-EVT X86TargetLowering::getWidenVectorType(EVT VT) const {
- assert(VT.isVector());
- if (isTypeLegal(VT))
- return VT;
-
- // TODO: In computeRegisterProperty, we can compute the list of legal vector
- // type based on element type. This would speed up our search (though
- // it may not be worth it since the size of the list is relatively
- // small).
- EVT EltVT = VT.getVectorElementType();
- unsigned NElts = VT.getVectorNumElements();
-
- // On X86, it make sense to widen any vector wider than 1
- if (NElts <= 1)
- return MVT::Other;
-
- for (unsigned nVT = MVT::FIRST_VECTOR_VALUETYPE;
- nVT <= MVT::LAST_VECTOR_VALUETYPE; ++nVT) {
- EVT SVT = (MVT::SimpleValueType)nVT;
-
- if (isTypeLegal(SVT) &&
- SVT.getVectorElementType() == EltVT &&
- SVT.getVectorNumElements() > NElts)
- return SVT;
- }
- return MVT::Other;
-}
(VT == MVT::f32 && X86ScalarSSEf32); // f32 is when SSE1
}
- /// getWidenVectorType: given a vector type, returns the type to widen
- /// to (e.g., v7i8 to v8i8). If the vector type is legal, it returns itself.
- /// If there is no vector type that we want to widen to, returns EVT::Other
- /// When and were to widen is target dependent based on the cost of
- /// scalarizing vs using the wider vector type.
- virtual EVT getWidenVectorType(EVT VT) const;
-
/// createFastISel - This method returns a target specific FastISel object,
/// or null if the target does not support "fast" ISel.
virtual FastISel *