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-rw-r--r--lib/VMCore/Constants.cpp11
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/VMCore/Constants.cpp b/lib/VMCore/Constants.cpp
index 350a306..9c1377d 100644
--- a/lib/VMCore/Constants.cpp
+++ b/lib/VMCore/Constants.cpp
@@ -1286,6 +1286,17 @@ bool ConstantVector::isAllOnesValue() const {
return true;
}
+/// getSplatValue - If this is a splat constant, where all of the
+/// elements have the same value, return that value. Otherwise return null.
+Constant *ConstantVector::getSplatValue() {
+ // Check out first element.
+ Constant *Elt = getOperand(0);
+ // Then make sure all remaining elements point to the same value.
+ for (unsigned I = 1, E = getNumOperands(); I < E; ++I)
+ if (getOperand(I) != Elt) return 0;
+ return Elt;
+}
+
//---- ConstantPointerNull::get() implementation...
//