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implement shl, ashr, and lshr methods. shl is not fully implemented as it is quite tricky.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86986 91177308-0d34-0410-b5e6-96231b3b80d8
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Nuno Lopes
2009-11-12 14:53:53 +00:00
parent 9e3728be62
commit 34e992da38
2 changed files with 49 additions and 0 deletions
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12
include/llvm/Support/ConstantRange.h
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@@ -217,6 +217,18 @@ public:
/// TODO: This isn't fully implemented yet.
ConstantRange udiv(const ConstantRange &Other) const;
/// shl - Return a new range representing the possible values resulting
/// from a left shift of a value in this range by the Amount value.
ConstantRange shl(const ConstantRange &Amount) const;
/// ashr - Return a new range representing the possible values resulting from
/// an arithmetic right shift of a value in this range by the Amount value.
ConstantRange ashr(const ConstantRange &Amount) const;
/// shr - Return a new range representing the possible values resulting
/// from a logical right shift of a value in this range by the Amount value.
ConstantRange lshr(const ConstantRange &Amount) const;
/// print - Print out the bounds to a stream...
///
void print(raw_ostream &OS) const;