Re: [PATCH PR69042/02]Increase PARAM_IV_CONSIDER_ALL_CANDIDATES_BOUND from 30 to 40

2016-03-21 Thread Jeff Law
On 03/21/2016 09:14 AM, Bin Cheng wrote: Hi, After patch fixing PR69042 at https://gcc.gnu.org/ml/gcc-patches/2016-03/msg00887.html, GCC hits bound (30) for parameter PARAM_IV_CONSIDER_ALL_CANDIDATES_BOUND in case 173.applu, which causes ~4% regression on AArch64. Since adding more candidates

[PATCH PR69042/02]Increase PARAM_IV_CONSIDER_ALL_CANDIDATES_BOUND from 30 to 40

2016-03-21 Thread Bin Cheng
Hi, After patch fixing PR69042 at https://gcc.gnu.org/ml/gcc-patches/2016-03/msg00887.html, GCC hits bound (30) for parameter PARAM_IV_CONSIDER_ALL_CANDIDATES_BOUND in case 173.applu, which causes ~4% regression on AArch64. Since adding more candidates is inevitable (Well, we might be able to