Add a convenience constructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110493 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/Support/ConstantRange.cpp b/lib/Support/ConstantRange.cpp
index 2746f7aaaa..fb0442823c 100644
--- a/lib/Support/ConstantRange.cpp
+++ b/lib/Support/ConstantRange.cpp
@@ -21,6 +21,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Constants.h"
 #include "llvm/Support/ConstantRange.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
@@ -39,6 +40,8 @@ ConstantRange::ConstantRange(uint32_t BitWidth, bool Full) {
 /// Initialize a range to hold the single specified value.
 ///
 ConstantRange::ConstantRange(const APInt & V) : Lower(V), Upper(V + 1) {}
+ConstantRange::ConstantRange(const ConstantInt *V)
+  : Lower(V->getValue()), Upper(V->getValue() + 1) {}
 
 ConstantRange::ConstantRange(const APInt &L, const APInt &U) :
   Lower(L), Upper(U) {