Errors from squaring

[mcabbott]

In the example of this thread, LoopVectorization seems not to be working for powers? Simpler examples:

julia> rr = rand(5);

julia> @avx rr.^2
ERROR: syntax: SSAValue objects should not occur in an AST
Stacktrace:
 [1] top-level scope at REPL[7]:1

julia> function sqr(x)
       out = similar(x)
       @avx for i in eachindex(x)
          out[i] = x[i]^2
       end
       out
       end
sqr (generic function with 1 method)

julia> sqr(rr)
ERROR: MethodError: no method matching ^(::VectorizationBase.SVec{4,Float64}, ::Int64)
Closest candidates are:
  ^(::Missing, ::Integer) at missing.jl:155
  ^(::Missing, ::Number) at missing.jl:115
  ^(::BigFloat, ::Union{Int16, Int32, Int64, Int8}) at mpfr.jl:587
  ...
Stacktrace:
 [1] macro expansion at /Users/me/.julia/packages/LoopVectorization/pVDc9/src/reconstruct_loopset.jl:415 [inlined]
 [2] _avx_! at /Users/me/.julia/packages/LoopVectorization/pVDc9/src/reconstruct_loopset.jl:415 [inlined]
 [3] sqr(::Array{Float64,1}) at ./REPL[8]:3
 [4] top-level scope at REPL[9]:1

(sdkfjhsdsdf) pkg> st
     Status `~/trash/sdkfjhsdsdf/Project.toml`
   bdcacae8 LoopVectorization v0.6.27

julia> VERSION # yesterday's, but I get the same on 1.4, just slightly more verbose errors
v"1.5.0-DEV.570"

[chriselrod]

I'll add Base.literal_pow support.
It'll take more than just a few missing methods, because it doesn't generate calls to Base.literal_pow at the moment.

[mcabbott]

Thanks!

[chriselrod]

I'll register a new release soon. I added a few unit tests that should cover it.