AVX1 : Enable vector masked_load/store to AVX1.
Use AVX1 FP instructions (vmaskmovps/pd) in place of the AVX2 int instructions (vpmaskmovd/q).

Differential Revision: http://reviews.llvm.org/D16528

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258675 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed