Re: [PATCH GCC][4/6]Relax minimal segment length of DR_B for merging alias check

2017-05-31 Thread Richard Biener
On Tue, May 30, 2017 at 5:29 PM, Bin.Cheng wrote: > On Tue, May 30, 2017 at 12:27 PM, Richard Biener > wrote: >> On Thu, May 25, 2017 at 5:16 PM, Bin.Cheng wrote: >>> On Tue, May 23, 2017 at 5:23 PM, Bin Cheng

Re: [PATCH GCC][4/6]Relax minimal segment length of DR_B for merging alias check

2017-05-30 Thread Bin.Cheng
On Tue, May 30, 2017 at 12:27 PM, Richard Biener wrote: > On Thu, May 25, 2017 at 5:16 PM, Bin.Cheng wrote: >> On Tue, May 23, 2017 at 5:23 PM, Bin Cheng wrote: >>> Hi, >>> As commented in

Re: [PATCH GCC][4/6]Relax minimal segment length of DR_B for merging alias check

2017-05-30 Thread Richard Biener
On Thu, May 25, 2017 at 5:16 PM, Bin.Cheng wrote: > On Tue, May 23, 2017 at 5:23 PM, Bin Cheng wrote: >> Hi, >> As commented in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80815#c1, >> We can relax minimal segment length of DR_B for merging. With this

Re: [PATCH GCC][4/6]Relax minimal segment length of DR_B for merging alias check

2017-05-25 Thread Bin.Cheng
On Tue, May 23, 2017 at 5:23 PM, Bin Cheng wrote: > Hi, > As commented in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80815#c1, > We can relax minimal segment length of DR_B for merging. With this change, > the new test can be improved to only one alias check. Note the >

[PATCH GCC][4/6]Relax minimal segment length of DR_B for merging alias check

2017-05-23 Thread Bin Cheng
Hi, As commented in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80815#c1, We can relax minimal segment length of DR_B for merging. With this change, the new test can be improved to only one alias check. Note the condition is still accurate after this patch, it won't introduce false alias.