From f17deafc0aefdc1607fdd47bfedd6f5e8c4de26b Mon Sep 17 00:00:00 2001
From: Vsevolod Livinskiy <vsevolod.livinskij@frtk.ru>
Date: Fri, 20 Feb 2015 17:46:06 +0300
Subject: [PATCH] Some little bug was fixed

---
 cbackend.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cbackend.cpp b/cbackend.cpp
index fef86b60..f99c1bfb 100644
--- a/cbackend.cpp
+++ b/cbackend.cpp
@@ -4689,6 +4689,11 @@ SmearCleanupPass::getShuffleSmearValue(llvm::Instruction* inst) const {
           llvm::isa<llvm::Constant>(insertInst->getOperand(2)) &&
           llvm::dyn_cast<llvm::Constant>(insertInst->getOperand(2))->isNullValue())) {
 
+        // We can't extract element from vec1
+        llvm::VectorType *operandVec = llvm::dyn_cast<llvm::VectorType>(shuffleInst->getOperand(0)->getType());
+        if (operandVec && operandVec->getNumElements() == 1)
+          return NULL;
+
         // Insert ExtractElementInstr to get value for smear        
 
         llvm::Function *extractFunc = module->getFunction("__extract_element");