From 85d0473650a694606126932eaf021ad7d4f1dc64 Mon Sep 17 00:00:00 2001 From: Suyog Sarda Date: Fri, 9 Jan 2015 10:23:48 +0000 Subject: Assumption that "VectorizedValue" will always be an Instruction is not correct. It can be a constant or a vector argument. ex : define i32 @hadd(<4 x i32> %a) #0 { entry: %vecext = extractelement <4 x i32> %a, i32 0 %vecext1 = extractelement <4 x i32> %a, i32 1 %add = add i32 %vecext, %vecext1 %vecext2 = extractelement <4 x i32> %a, i32 2 %add3 = add i32 %add, %vecext2 %vecext4 = extractelement <4 x i32> %a, i32 3 %add5 = add i32 %add3, %vecext4 ret i32 %add5 } llvm-svn: 225517 --- llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'llvm/lib/Transforms/Vectorize') diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp index 2b411d441d4..c8b8ff22de0 100644 --- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp +++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp @@ -3502,11 +3502,10 @@ private: /// \brief Emit a horizontal reduction of the vectorized value. Value *emitReduction(Value *VectorizedValue, IRBuilder<> &Builder) { assert(VectorizedValue && "Need to have a vectorized tree node"); - Instruction *ValToReduce = dyn_cast(VectorizedValue); assert(isPowerOf2_32(ReduxWidth) && "We only handle power-of-two reductions for now"); - Value *TmpVec = ValToReduce; + Value *TmpVec = VectorizedValue; for (unsigned i = ReduxWidth / 2; i != 0; i >>= 1) { if (IsPairwiseReduction) { Value *LeftMask = -- cgit v1.2.3