[Bug rtl-optimization/54910] ARM: Missed optimization of very simple ctz function

2012-11-29 Thread ramana at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54910 --- Comment #4 from Ramana Radhakrishnan 2012-11-29 11:15:44 UTC --- (In reply to comment #3) > ... and this particular case wouldn't arise, since Thumb-2 (ARMv7) implies the > CLZ instruction (ARMv5), and I wouldn't need this table-based

[Bug rtl-optimization/54910] ARM: Missed optimization of very simple ctz function

2012-11-29 Thread linux at horizon dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54910 --- Comment #3 from George Spelvin 2012-11-29 11:12:52 UTC --- ... and this particular case wouldn't arise, since Thumb-2 (ARMv7) implies the CLZ instruction (ARMv5), and I wouldn't need this table-based implementation if I had CLZ. :-)

[Bug rtl-optimization/54910] ARM: Missed optimization of very simple ctz function

2012-11-28 Thread amker.cheng at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54910 bin.cheng changed: What|Removed |Added CC||amker.cheng at gmail dot

[Bug rtl-optimization/54910] ARM: Missed optimization of very simple ctz function

2012-11-27 Thread ramana at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54910 Ramana Radhakrishnan changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug rtl-optimization/54910] ARM: Missed optimization of very simple ctz function

2012-11-27 Thread ramana at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54910 Ramana Radhakrishnan changed: What|Removed |Added Priority|P3 |P4 CC|