Re: [PATCH] Fix PRs70359/86270

2018-11-01 Thread H.J. Lu
On Wed, Oct 31, 2018 at 4:56 AM Richard Biener wrote: > > On Tue, 30 Oct 2018, Richard Biener wrote: > > > > > This picks up work from earlier this year where Aldy worked on > > undoing forwprop during out-of-SSA to improve coalescing across > > backedges. > > > > The following patch first rectifi

Re: [PATCH] Fix PRs70359/86270

2018-10-31 Thread Richard Biener
On Tue, 30 Oct 2018, Richard Biener wrote: > > This picks up work from earlier this year where Aldy worked on > undoing forwprop during out-of-SSA to improve coalescing across > backedges. > > The following patch first rectifies the existing code which > is meant to insert necessary copies in pl

[PATCH] Fix PRs70359/86270

2018-10-30 Thread Richard Biener
This picks up work from earlier this year where Aldy worked on undoing forwprop during out-of-SSA to improve coalescing across backedges. The following patch first rectifies the existing code which is meant to insert necessary copies in places where it then allows coalescing and thus avoids spli