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authorNuno Lopes <nunoplopes@sapo.pt>2012-06-28 16:10:13 +0000
committerNuno Lopes <nunoplopes@sapo.pt>2012-06-28 16:10:13 +0000
commit62d7afad8faf7a1fbbf3402f8e23ce4ece9ab108 (patch)
treed302bbdc65dd8eef01f8d303ac87c9db93d82da1 /include/llvm/Support/ConstantRange.h
parentceb5bc7df1a3f6b1d4a301adf30f4d0e21bbaa15 (diff)
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add ConstantRange::difference (to perform set difference/relative complement)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159352 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Support/ConstantRange.h')
-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