Make the SLP store-merger less paranoid about function calls. We check for function calls when we check if it is safe to sink instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179207 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 4 deletions

diff --git a/lib/Transforms/Vectorize/SLPVectorizer.cpp b/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 01b2b92..21bdec8 100644
--- a/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -65,10 +65,6 @@ struct SLPVectorizer : public BasicBlockPass {
   /// if we flush the chain creation every time we run into a memory barrier.
   bool CollectStores(BasicBlock *BB, BoUpSLP &R) {
     for (BasicBlock::iterator it = BB->begin(), e = BB->end(); it != e; ++it) {
-      // Can't vectorize instructions with side effects.
-      if (it->mayThrow())
-        return false;
-
       StoreInst *SI = dyn_cast<StoreInst>(it);
       if (!SI)
         continue;