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llvm/trunk/lib/CodeGen/TargetLoweringBase.cpp
| Show First 20 Lines • Show All 1,260 Lines • ▼ Show 20 Lines | for (unsigned i = MVT::FIRST_VECTOR_VALUETYPE; | ||||
| MVT EltVT = VT.getVectorElementType(); | MVT EltVT = VT.getVectorElementType(); | ||||
| unsigned NElts = VT.getVectorNumElements(); | unsigned NElts = VT.getVectorNumElements(); | ||||
| bool IsLegalWiderType = false; | bool IsLegalWiderType = false; | ||||
| LegalizeTypeAction PreferredAction = getPreferredVectorAction(VT); | LegalizeTypeAction PreferredAction = getPreferredVectorAction(VT); | ||||
| switch (PreferredAction) { | switch (PreferredAction) { | ||||
| case TypePromoteInteger: | case TypePromoteInteger: | ||||
| // Try to promote the elements of integer vectors. If no legal | // Try to promote the elements of integer vectors. If no legal | ||||
| // promotion was found, fall through to the widen-vector method. | // promotion was found, fall through to the widen-vector method. | ||||
| for (unsigned nVT = i + 1; nVT <= MVT::LAST_INTEGER_VECTOR_VALUETYPE; ++nVT) { | for (unsigned nVT = i + 1; | ||||
| nVT <= MVT::LAST_INTEGER_FIXEDLEN_VECTOR_VALUETYPE; ++nVT) { | |||||
| MVT SVT = (MVT::SimpleValueType) nVT; | MVT SVT = (MVT::SimpleValueType) nVT; | ||||
| // Promote vectors of integers to vectors with the same number | // Promote vectors of integers to vectors with the same number | ||||
| // of elements, with a wider element type. | // of elements, with a wider element type. | ||||
| if (SVT.getScalarSizeInBits() > EltVT.getSizeInBits() && | if (SVT.getScalarSizeInBits() > EltVT.getSizeInBits() && | ||||
| SVT.getVectorNumElements() == NElts && isTypeLegal(SVT)) { | SVT.getVectorNumElements() == NElts && isTypeLegal(SVT)) { | ||||
| TransformToType[i] = SVT; | TransformToType[i] = SVT; | ||||
| RegisterTypeForVT[i] = SVT; | RegisterTypeForVT[i] = SVT; | ||||
| NumRegistersForVT[i] = 1; | NumRegistersForVT[i] = 1; | ||||
| ▲ Show 20 Lines • Show All 701 Lines • Show Last 20 Lines | |||||