From d7b574e5b3f5b21406b5ff409bd1a90c019e5285 Mon Sep 17 00:00:00 2001
From: Nadav Rotem <nrotem@apple.com>
Date: Tue, 9 Jul 2013 21:38:08 +0000
Subject: Fix PR16571, which is a bug in the code that checks that all of the
 types in the bundle are uniform.

llvm-svn: 185970
---
 llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp')

diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 93ff1f7e5b5..af6a07b34fa 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -172,7 +172,7 @@ static unsigned getSameOpcode(ArrayRef<Value *> VL) {
 static Type* getSameType(ArrayRef<Value *> VL) {
   Type *Ty = VL[0]->getType();
   for (int i = 1, e = VL.size(); i < e; i++)
-    if (VL[0]->getType() != Ty)
+    if (VL[i]->getType() != Ty)
       return 0;
 
   return Ty;
@@ -389,6 +389,8 @@ private:
 
 void BoUpSLP::buildTree(ArrayRef<Value *> Roots) {
   deleteTree();
+  if (!getSameType(Roots))
+    return;
   buildTree_rec(Roots, 0);
 }
 
-- 
cgit v1.2.3