[Bug other/55181] [4.7/4.8 Regression] Expensive shift loop where a bit-testing instruction could be used

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55181 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Target Milestone|--- |4.7.3

[Bug other/55181] [4.7/4.8 Regression] Expensive shift loop where a bit-testing instruction could be used

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55181 Georg-Johann Lay gjl at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW

[Bug other/55181] [4.7/4.8 Regression] Expensive shift loop where a bit-testing instruction could be used

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55181 --- Comment #2 from Georg-Johann Lay gjl at gcc dot gnu.org 2012-11-02 16:11:40 UTC --- Created attachment 28597 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=28597 foo.c Test case

[Bug other/55181] [4.7/4.8 Regression] Expensive shift loop where a bit-testing instruction could be used

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55181 --- Comment #3 from Georg-Johann Lay gjl at gcc dot gnu.org 2012-11-02 16:13:18 UTC --- Created attachment 28598 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=28598 foo.s (from 4.8) Assembler output that shows the expensive shift

[Bug other/55181] [4.7/4.8 Regression] Expensive shift loop where a bit-testing instruction could be used

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55181 --- Comment #4 from Georg-Johann Lay gjl at gcc dot gnu.org 2012-11-02 16:15:16 UTC --- Created attachment 28599 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=28599 foo.s (4.6.2, good) Assembler output from 4.6.2 that generates a