diff options
Diffstat (limited to 'compiler/optimizing/loop_optimization.cc')
| -rw-r--r-- | compiler/optimizing/loop_optimization.cc | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/compiler/optimizing/loop_optimization.cc b/compiler/optimizing/loop_optimization.cc index 645915e2f8..69c6b94c6b 100644 --- a/compiler/optimizing/loop_optimization.cc +++ b/compiler/optimizing/loop_optimization.cc @@ -1623,17 +1623,28 @@ void HLoopOptimization::GenerateVecReductionPhiInputs(HPhi* phi, HInstruction* r } // Prepare the new initialization. if (vector_mode_ == kVector) { - // Generate a [initial, 0, .., 0] vector. + // Generate a [initial, 0, .., 0] vector for add or + // a [initial, initial, .., initial] vector for min/max. HVecOperation* red_vector = new_red->AsVecOperation(); + HVecReduce::ReductionKind kind = GetReductionKind(red_vector); size_t vector_length = red_vector->GetVectorLength(); DataType::Type type = red_vector->GetPackedType(); - new_init = Insert(vector_preheader_, - new (global_allocator_) HVecSetScalars(global_allocator_, - &new_init, - type, - vector_length, - 1, - kNoDexPc)); + if (kind == HVecReduce::ReductionKind::kSum) { + new_init = Insert(vector_preheader_, + new (global_allocator_) HVecSetScalars(global_allocator_, + &new_init, + type, + vector_length, + 1, + kNoDexPc)); + } else { + new_init = Insert(vector_preheader_, + new (global_allocator_) HVecReplicateScalar(global_allocator_, + new_init, + type, + vector_length, + kNoDexPc)); + } } else { new_init = ReduceAndExtractIfNeeded(new_init); } |