On Tue, Apr 18, 2017 at 12:51 PM, Bin Cheng <bin.ch...@arm.com> wrote: > Hi, > At the moment, inv_vars are recognized during finding iv_uses. It's also > possible that inv_vars are used when expressing iv_use with specific cand. > Unfortunately, such inv_vars are neither recognized nor considered in reg > pressure estimation. This patch modifies find_inv_vars_cb so that such > invariant variables are also recognized and recorded. The patch also moves > dump information later so that all invariant variables can be dumped. > Is it OK?
Ok. Richard. > Thanks > bin > 2017-04-11 Bin Cheng <bin.ch...@arm.com> > > * tree-ssa-loop-ivopts.c (find_interesting_uses): Move inv vars dump > to ... > (determine_group_iv_costs): ... here. > (find_inv_vars_cb): Record inv var if it's not recorded before.
