move gesp_cost_offset's multiplication from prepreamble into preamble.

Author: chriselrod

Project.toml

@@ -1,7 +1,7 @@
 name = "LoopVectorization"
 uuid = "bdcacae8-1622-11e9-2a5c-532679323890"
 authors = ["Chris Elrod <[email protected]>"]
-version = "0.12.87"
+version = "0.12.88"
 
 [deps]
 ArrayInterface = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"

src/LoopVectorization.jl

@@ -1,6 +1,6 @@
 module LoopVectorization
 
-using Static: StaticInt, gt
+using Static: StaticInt, gt, static
 using VectorizationBase, SLEEFPirates, UnPack, OffsetArrays
 using VectorizationBase: 
   mask, MM, AbstractMask, data, grouped_strided_pointer, AbstractSIMD,
@@ -54,7 +54,7 @@ const Static = StaticInt
 using Requires
 
 
-export LowDimArray, stridedpointer, indices,
+export LowDimArray, stridedpointer, indices,  static,
     @avx, @avxt, @turbo, @tturbo, *ˡ, _turbo_!,
     vmap, vmap!, vmapt, vmapt!, vmapnt, vmapnt!, vmapntt, vmapntt!,
     tanh_fast, sigmoid_fast,

src/parse/memory_ops_common.jl

@@ -11,6 +11,7 @@ function extract_array_symbol_from_ref!(ls::LoopSet, ex::Expr, offset1::Int)::Sy
     return ar
   elseif isa(ar, Expr) && (ar.head === :(.) || ar.head === :ref)
     s = dottosym(ar)
+    # pushpreamble!(ls, Expr(:(=), s, ar))
     pushprepreamble!(ls, Expr(:(=), s, ar))
     return s
   else
@@ -97,8 +98,10 @@ function gesp_const_offset!(ls::LoopSet, vptrarray::Symbol, ninds::Int, indices:
   if isone(mlt)
     subset_vptr!(ls, vptrarray, ninds, sym, indices, loopedindex, D)
   else        
+    # want same name for arrays to be given the same name if possible
     mltsym = Symbol(sym, "##multiplied##by##", mlt)
-    pushprepreamble!(ls, Expr(:(=), mltsym, Expr(:call, :(*), mlt, sym))) # want same name for arrays to be given the same name if possible
+    pushpreamble!(ls, Expr(:(=), mltsym, Expr(:call, :(*), mlt, sym)))
+    # pushprepreamble!(ls, Expr(:(=), mltsym, Expr(:call, :(*), mlt, sym)))
     subset_vptr!(ls, vptrarray, ninds, mltsym, indices, loopedindex, D)
   end
 end