[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 ktkachov at gcc dot gnu.org changed: What|Removed |Added Status|ASSIGNED|RESOLVED

[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 --- Comment #7 from ktkachov at gcc dot gnu.org --- Author: ktkachov Date: Thu Mar 3 17:25:43 2016 New Revision: 233941 URL: https://gcc.gnu.org/viewcvs?rev=233941=gcc=rev Log: [ARM] PR rtl-optimization/69904: Disallow copying/duplicating of

[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 --- Comment #6 from ktkachov at gcc dot gnu.org --- (In reply to ktkachov from comment #5) > I'll propose a patch to disallow copying of load-exclusive insns https://gcc.gnu.org/ml/gcc-patches/2016-03/msg00211.html

[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 Richard Biener changed: What|Removed |Added Priority|P3 |P1

[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 ktkachov at gcc dot gnu.org changed: What|Removed |Added Status|NEW |ASSIGNED

[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 --- Comment #4 from Segher Boessenkool --- (In reply to ktkachov from comment #3) > (In reply to Segher Boessenkool from comment #2) > > If you disallow this memory clobber from being copied (via the > > cannot_copy_insn_p hook), do you then get

[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 Richard Biener changed: What|Removed |Added Target Milestone|--- |6.0

[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 ktkachov at gcc dot gnu.org changed: What|Removed |Added CC||ramana.radhakrishnan at arm

[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 --- Comment #2 from Segher Boessenkool --- If you disallow this memory clobber from being copied (via the cannot_copy_insn_p hook), do you then get what you want?

[Bug rtl-optimization/69904] [6 Regression] shrink-wrapping creates weird atomic compare exchange loop on arm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69904 Segher Boessenkool changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|