SLPVectorizer: Only vectorize intrinsics whose operands are widened equally

[oota-llvm.git] / lib / Transforms / Vectorize / SLPVectorizer.cpp

diff --git a/lib/Transforms/Vectorize/SLPVectorizer.cpp b/lib/Transforms/Vectorize/SLPVectorizer.cpp
index ca55b4d6c909fb978739cf7533c823f612bd545b..6a78d756ccc3e30fb6ee6674c267cc2229ffbb5e 100644 (file)
--- a/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -41,6 +41,7 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
+#include "llvm/Transforms/Utils/VectorUtils.h"
 #include <algorithm>
 #include <map>
 
@@ -949,7 +950,9 @@ void BoUpSLP::buildTree_rec(ArrayRef<Value *> VL, unsigned Depth) {
     case Instruction::Call: {
       // Check if the calls are all to the same vectorizable intrinsic.
       IntrinsicInst *II = dyn_cast<IntrinsicInst>(VL[0]);
-      if (II==NULL) {
+      Intrinsic::ID ID = II ? II->getIntrinsicID() : Intrinsic::not_intrinsic;
+
+      if (!isTriviallyVectorizable(ID)) {
         newTreeEntry(VL, false);
         DEBUG(dbgs() << "SLP: Non-vectorizable call.\n");
         return;