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Add a helper method

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llvm-svn: 26878
This commit is contained in:
Chris Lattner 2006-03-19 23:41:32 +00:00
parent 9a87d3e90d
commit 8e89272e96
1 changed files with 18 additions and 0 deletions
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18
include/llvm/CodeGen/ValueTypes.h
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@ -161,6 +161,24 @@ namespace MVT { // MVT = Machine Value Types
}
}
/// MVT::getVectorNumElements - Given a packed vector type, return the number
/// of elements it contains.
static inline unsigned getVectorNumElements(ValueType VT) {
switch (VT) {
default: assert(0 && "Invalid vector type!");
case v16i8: return 16;
case v8i8 :
case v8i16: return 8;
case v4i16:
case v4i32:
case v4f32: return 4;
case v2i32:
case v2i64:
case v2f32:
case v2f64: return 2;
}
}
/// MVT::getIntVTBitMask - Return an integer with 1's every place there are
/// bits in the specified integer value type.
static inline uint64_t getIntVTBitMask(ValueType VT) {