add tuple sum benchmarks

src/BaseBenchmarks.jl

@@ -23,6 +23,7 @@ include("shootout/ShootoutBenchmarks.jl")
 include("sort/SortBenchmarks.jl")
 include("sparse/SparseBenchmarks.jl")
 include("string/StringBenchmarks.jl")
+include("tuples/TupleBenchmarks.jl")
 
 macro execute(tagpred)
     return esc(quote

src/tuples/TupleBenchmarks.jl

@@ -0,0 +1,53 @@
+module TupleBenchmarks
+
+import ..BaseBenchmarks
+using ..BenchmarkTrackers
+using ..RandUtils
+
+
+###############
+# issue #5274 #
+###############
+
+immutable TupleWrapper{N, T}
+    data::NTuple{N, T}
+end
+
+Base.eltype{N,T}(::TupleWrapper{N,T}) = T
+Base.length{N,T}(::TupleWrapper{N,T}) = N
+
+function get_index(n::NTuple, i::Int)
+    @inbounds v = n[i]
+    return v
+end
+
+function get_index(n::TupleWrapper, i::Int)
+    @inbounds v = n.data[i]
+    return v
+end
+
+function sum_tuple{N, T}(n::Union{NTuple{N, T}, TupleWrapper{N, T}})
+    s = zero(T)
+    for i in 1:N
+        s += get_index(n, i)
+    end
+    return s
+end
+
+
+TUPLE_SUM_SIZES = (3, 8, 30, 60)
+TUPLE_SUM_TYPES = (Float32, Float64)
+
+@track BaseBenchmarks.TRACKER "tuple indexing" begin
+    @setup begin
+        tuples = [((samerand(T, i)...)) for i in TUPLE_SUM_SIZES, T in TUPLE_SUM_TYPES]
+        tuple_wrappers = [TupleWrapper((samerand(T, i)...)) for i in TUPLE_SUM_SIZES, T in TUPLE_SUM_TYPES]
+    end
+    @benchmarks begin
+        [(:sumelt, "TupleWrapper", length(t_wrap), eltype(t_wrap)) => sum_tuple(t_wrap) for t_wrap in tuple_wrappers]
+        [(:sumelt, "NTuple", length(t), eltype(t)) => sum_tuple(t) for t in tuples]
+    end
+    @tags "tuple" "indexing" "sum"
+end
+
+end # module