[Bug rtl-optimization/92637] runtime issue with -ftree-coalesce-vars

2019-11-25 Thread dongjianqiang2 at huawei dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92637 John Dong changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug rtl-optimization/92637] runtime issue with -ftree-coalesce-vars

2019-11-25 Thread dongjianqiang2 at huawei dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92637 --- Comment #3 from John Dong --- (In reply to Andrew Pinski from comment #1) > > 214: aa0a03e0mov x0, x10 // HERE x10 is > > overwriten by glibc > > > Hmm, GCC knows that find_next_zero_bit will not clobber x10 so

[Bug rtl-optimization/92637] runtime issue with -ftree-coalesce-vars

2019-11-23 Thread wilco at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92637 Wilco changed: What|Removed |Added CC||wilco at gcc dot gnu.org --- Comment #2 from Wil

[Bug rtl-optimization/92637] runtime issue with -ftree-coalesce-vars

2019-11-23 Thread pinskia at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92637 --- Comment #1 from Andrew Pinski --- > 214: aa0a03e0mov x0, x10 // HERE x10 is overwriten > by glibc Hmm, GCC knows that find_next_zero_bit will not clobber x10 so it uses across the call of that. This is due to -