pytorch

c59970db - [caffe2][easy] Save heap allocation in ConcatOp (#63529)

[caffe2][easy] Save heap allocation in ConcatOp (#63529) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63529 Output() takes an IntArrayRef, so we can just use a std::initializer_list (stack-allocated array) instead of std::vector here. ghstack-source-id: 137085908 Test Plan: existing CI Reviewed By: mruberry Differential Revision: D29687400 fbshipit-source-id: 9f2a7c6679f2552c098bb1bf7befaca18e0e5d4d