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Add a new ConstantPacked::getAllOnesValue method

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32856 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-01-04 01:49:26 +00:00
parent 8688428b05
commit 58513aa1c2
2 changed files with 17 additions and 0 deletions
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5
include/llvm/Constants.h
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@ -422,6 +422,11 @@ public:
return reinterpret_cast<const PackedType*>(Value::getType());
}
/// @returns the value for an packed integer constant of the given type that
/// has all its bits set to true.
/// @brief Get the all ones value
static ConstantPacked *getAllOnesValue(const PackedType *Ty);
/// isNullValue - Return true if this is the value that would be returned by
/// getNullValue. This always returns false because zero arrays are always
/// created as ConstantAggregateZero objects.

12
lib/VMCore/Constants.cpp
View File

@ -146,6 +146,18 @@ ConstantIntegral *ConstantIntegral::getAllOnesValue(const Type *Ty) {
}
}
/// @returns the value for an packed integer constant of the given type that
/// has all its bits set to true.
/// @brief Get the all ones value
ConstantPacked *ConstantPacked::getAllOnesValue(const PackedType *Ty) {
std::vector<Constant*> Elts;
Elts.resize(Ty->getNumElements(),
ConstantIntegral::getAllOnesValue(Ty->getElementType()));
assert(Elts[0] && "Not a packed integer type!");
return cast<ConstantPacked>(ConstantPacked::get(Elts));
}
//===----------------------------------------------------------------------===//
// ConstantXXX Classes
//===----------------------------------------------------------------------===//