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add a method to turn a type into a VT.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35526 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-03-31 04:03:02 +00:00
parent 1c5d163634
commit 2df6dc579c
2 changed files with 33 additions and 0 deletions
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5
include/llvm/CodeGen/ValueTypes.h
View File

@ -197,6 +197,11 @@ namespace MVT { // MVT = Machine Value Types
/// to the specified ValueType. For integer types, this returns an unsigned
/// type. Note that this will abort for types that cannot be represented.
const Type *getTypeForValueType(ValueType VT);
/// MVT::getValueType - Return the value type corresponding to the specified
/// type. This returns all vectors as MVT::Vector and all pointers as
/// MVT::iPTR.
ValueType getValueType(const Type *Ty);
}
} // End llvm namespace

28
lib/VMCore/ValueTypes.cpp
View File

@ -110,3 +110,31 @@ const Type *MVT::getTypeForValueType(MVT::ValueType VT) {
case MVT::v2f64: return VectorType::get(Type::DoubleTy, 2);
}
}
/// MVT::getValueType - Return the value type corresponding to the specified
/// type. This returns all vectors as MVT::Vector and all pointers as
/// MVT::iPTR.
MVT::ValueType MVT::getValueType(const Type *Ty) {
switch (Ty->getTypeID()) {
default: assert(0 && "Unknown type!");
case Type::VoidTyID:
return MVT::isVoid;
case Type::IntegerTyID:
switch (cast<IntegerType>(Ty)->getBitWidth()) {
default:
// FIXME: Return MVT::iANY.
assert(0 && "Invalid width for value type");
case 1: return MVT::i1;
case 8: return MVT::i8;
case 16: return MVT::i16;
case 32: return MVT::i32;
case 64: return MVT::i64;
case 128: return MVT::i128;
}
break;
case Type::FloatTyID: return MVT::f32;
case Type::DoubleTyID: return MVT::f64;
case Type::PointerTyID: return MVT::iPTR;
case Type::VectorTyID: return MVT::Vector;
}
}