Re: [PATCH GCC][3/6]New file computing regional register pressure on TREE SSA

2017-06-28 Thread Richard Biener
On Wed, Jun 28, 2017 at 10:09 AM, Bin.Cheng wrote: > On Tue, Jun 27, 2017 at 6:40 PM, Jeff Law wrote: >> On 05/12/2017 05:28 AM, Bin Cheng wrote: >>> Hi, >>> This patch computes register pressure information on TREE SSA by a backward >>> live >>> range

Re: [PATCH GCC][3/6]New file computing regional register pressure on TREE SSA

2017-06-28 Thread Bin.Cheng
On Tue, Jun 27, 2017 at 6:40 PM, Jeff Law wrote: > On 05/12/2017 05:28 AM, Bin Cheng wrote: >> Hi, >> This patch computes register pressure information on TREE SSA by a backward >> live >> range data flow problem. The major motivation is to estimate register >> pressure >> for

Re: [PATCH GCC][3/6]New file computing regional register pressure on TREE SSA

2017-06-27 Thread Jeff Law
On 05/12/2017 05:28 AM, Bin Cheng wrote: > Hi, > This patch computes register pressure information on TREE SSA by a backward > live > range data flow problem. The major motivation is to estimate register > pressure > for inner-most loop on TREE SSA, then other optimizations can use it. So far

[PATCH GCC][3/6]New file computing regional register pressure on TREE SSA

2017-05-12 Thread Bin Cheng
Hi, This patch computes register pressure information on TREE SSA by a backward live range data flow problem. The major motivation is to estimate register pressure for inner-most loop on TREE SSA, then other optimizations can use it. So far the information is used only in predcom later, but it