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-rw-r--r--include/llvm/Support/ConstantRange.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/llvm/Support/ConstantRange.h b/include/llvm/Support/ConstantRange.h
index ced3a2cf2d..90dd69fa47 100644
--- a/include/llvm/Support/ConstantRange.h
+++ b/include/llvm/Support/ConstantRange.h
@@ -155,6 +155,10 @@ public:
/// constant range.
ConstantRange subtract(const APInt &CI) const;
+ /// \brief Subtract the specified range from this range (aka relative
+ /// complement of the sets).
+ ConstantRange difference(const ConstantRange &CR) const;
+
/// intersectWith - Return the range that results from the intersection of
/// this range with another range. The resultant range is guaranteed to
/// include all elements contained in both input ranges, and to have the