Re: [RFC][PR87528][PR86677] Disable builtin popcount detection when back-end does not define it

2018-11-12 Thread Richard Biener
On Mon, Nov 12, 2018 at 6:21 AM Kugan Vivekanandarajah wrote: > > Hi Richard, > > Thanks for the review. > On Thu, 8 Nov 2018 at 00:03, Richard Biener > wrote: > > > > On Fri, Nov 2, 2018 at 10:02 AM Kugan Vivekanandarajah > > wrote: > > > > > > Hi Richard, > > > Thanks for the review. > > >

Re: [RFC][PR87528][PR86677] Disable builtin popcount detection when back-end does not define it

2018-11-11 Thread Kugan Vivekanandarajah
Hi Richard, Thanks for the review. On Thu, 8 Nov 2018 at 00:03, Richard Biener wrote: > > On Fri, Nov 2, 2018 at 10:02 AM Kugan Vivekanandarajah > wrote: > > > > Hi Richard, > > Thanks for the review. > > On Tue, 30 Oct 2018 at 01:25, Richard Biener > > wrote: > > > > > > On Mon, Oct 29, 2018

Re: [RFC][PR87528][PR86677] Disable builtin popcount detection when back-end does not define it

2018-11-07 Thread Richard Biener
On Fri, Nov 2, 2018 at 10:02 AM Kugan Vivekanandarajah wrote: > > Hi Richard, > Thanks for the review. > On Tue, 30 Oct 2018 at 01:25, Richard Biener > wrote: > > > > On Mon, Oct 29, 2018 at 2:06 AM Kugan Vivekanandarajah > > wrote: > > > > > > Hi Richard and Jeff, > > > > > > Thanks for your

Re: [RFC][PR87528][PR86677] Disable builtin popcount detection when back-end does not define it

2018-11-02 Thread Kugan Vivekanandarajah
Hi Richard, Thanks for the review. On Tue, 30 Oct 2018 at 01:25, Richard Biener wrote: > > On Mon, Oct 29, 2018 at 2:06 AM Kugan Vivekanandarajah > wrote: > > > > Hi Richard and Jeff, > > > > Thanks for your comments. > > > > On Fri, 26 Oct 2018 at 19:40, Richard Biener > > wrote: > > > > > >

Re: [RFC][PR87528][PR86677] Disable builtin popcount detection when back-end does not define it

2018-10-29 Thread Richard Biener
On Mon, Oct 29, 2018 at 2:06 AM Kugan Vivekanandarajah wrote: > > Hi Richard and Jeff, > > Thanks for your comments. > > On Fri, 26 Oct 2018 at 19:40, Richard Biener > wrote: > > > > On Fri, Oct 26, 2018 at 4:55 AM Jeff Law wrote: > > > > > > On 10/25/18 4:33 PM, Kugan Vivekanandarajah wrote:

Re: [RFC][PR87528][PR86677] Disable builtin popcount detection when back-end does not define it

2018-10-28 Thread Kugan Vivekanandarajah
Hi Richard and Jeff, Thanks for your comments. On Fri, 26 Oct 2018 at 19:40, Richard Biener wrote: > > On Fri, Oct 26, 2018 at 4:55 AM Jeff Law wrote: > > > > On 10/25/18 4:33 PM, Kugan Vivekanandarajah wrote: > > > Hi, > > > > > > PR87528 showed a case where libgcc generated popcount is

Re: [RFC][PR87528][PR86677] Disable builtin popcount detection when back-end does not define it

2018-10-26 Thread Richard Biener
On Fri, Oct 26, 2018 at 4:55 AM Jeff Law wrote: > > On 10/25/18 4:33 PM, Kugan Vivekanandarajah wrote: > > Hi, > > > > PR87528 showed a case where libgcc generated popcount is causing > > regression for Skylake. > > We also have PR86677 where kernel build is failing because the kernel > > does

Re: [RFC][PR87528][PR86677] Disable builtin popcount detection when back-end does not define it

2018-10-25 Thread Jeff Law
On 10/25/18 4:33 PM, Kugan Vivekanandarajah wrote: > Hi, > > PR87528 showed a case where libgcc generated popcount is causing > regression for Skylake. > We also have PR86677 where kernel build is failing because the kernel > does not use the libgcc (when backend is not defining popcount >

[RFC][PR87528][PR86677] Disable builtin popcount detection when back-end does not define it

2018-10-25 Thread Kugan Vivekanandarajah
Hi, PR87528 showed a case where libgcc generated popcount is causing regression for Skylake. We also have PR86677 where kernel build is failing because the kernel does not use the libgcc (when backend is not defining popcount pattern). While I agree that the kernel should implement its own