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add a helper method for code that wants to handle vector

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constants by element without caring how they are formed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53382 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2008-07-10 00:28:34 +00:00
parent 8638144825
commit cd4e5b0417
1 changed files with 6 additions and 0 deletions
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6
include/llvm/Constant.h
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@@ -17,6 +17,7 @@
#include "llvm/User.h" #include "llvm/User.h"
namespace llvm { namespace llvm {
template<typename T> class SmallVectorImpl;
/// This is an important base class in LLVM. It provides the common facilities /// This is an important base class in LLVM. It provides the common facilities
/// of all constant values in an LLVM program. A constant is a value that is /// of all constant values in an LLVM program. A constant is a value that is
@@ -79,6 +80,11 @@ public:
void setOperand(unsigned i, Constant *C) { void setOperand(unsigned i, Constant *C) {
User::setOperand(i, C); User::setOperand(i, C);
} }
/// getVectorElements - This method, which is only valid on constant of vector
/// type, returns the elements of the vector in the specified smallvector.
/// This handles breaking down a vector undef into undef elements, etc.
void getVectorElements(SmallVectorImpl<Constant*> &Elts) const;
/// destroyConstant - Called if some element of this constant is no longer /// destroyConstant - Called if some element of this constant is no longer
/// valid. At this point only other constants may be on the use_list for this /// valid. At this point only other constants may be on the use_list for this