Fixed a failure in cost calculation for vector GEP
Cost calculation for vector GEP failed with due to invalid cast to GEP index operand.
The bug is fixed, added a test.
http://reviews.llvm.org/D14976
llvm-svn: 254408
diff --git a/llvm/lib/Analysis/VectorUtils.cpp b/llvm/lib/Analysis/VectorUtils.cpp
index fbf387b..e461294 100644
--- a/llvm/lib/Analysis/VectorUtils.cpp
+++ b/llvm/lib/Analysis/VectorUtils.cpp
@@ -417,9 +417,10 @@
/// the input value is (1) a splat constants vector or (2) a sequence
/// of instructions that broadcast a single value into a vector.
///
-llvm::Value *llvm::getSplatValue(Value *V) {
- if (auto *CV = dyn_cast<ConstantDataVector>(V))
- return CV->getSplatValue();
+const llvm::Value *llvm::getSplatValue(const Value *V) {
+
+ if (auto *C = dyn_cast<Constant>(V))
+ return C->getSplatValue();
auto *ShuffleInst = dyn_cast<ShuffleVectorInst>(V);
if (!ShuffleInst)