tree 1617260f26d5b3c251285ca7274fbbf24a8803b7
parent 7a1b274338833425eddbe2ee86cc84469f0ef381
author Than McIntosh <thanm@google.com> 1540555181 -0400
committer Than McIntosh <thanm@google.com> 1540839500 +0000

gollvm: fix for enabling vectorization

Fix the pass manager construction code to enable vectorization
based on optimization level (has to be turned on explicitly).
While doing this, add support for the -fvectorize/-fno-vectorize
and -fslp-vectorize/-fno-slp-vectorize command line options.

Change-Id: I6021f267c4ed46348aa106a1d14c3c488517ef16
Reviewed-on: https://go-review.googlesource.com/c/145018
Reviewed-by: Cherry Zhang <cherryyz@google.com>