------- Comment From bren...@br.ibm.com 2015-08-27 13:16 EDT------- Already available in 15.10 release with gcc version 5.2.1-15ubuntu2. CLosing at IBM side.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gcc-4.8 in Ubuntu. https://bugs.launchpad.net/bugs/1449119 Title: [Ubuntu 15.10] gcc: Optimize swap removal in presence of floating- point vector convert/splat sequence Status in gcc-4.8 package in Ubuntu: Fix Released Status in gcc-4.9 package in Ubuntu: Fix Released Status in gcc-5 package in Ubuntu: Fix Released Status in gcc-4.8 source package in Trusty: Fix Released Bug description: On Little Endian systems, GCC performs optimizations to remove unnecessary element reversals of vectors that are sometimes required to adjust for behavior of the lxvd2x, etc., instructions. In one not uncommon case, such optimizations are defeated when we perform a vector convert from double-precision to single-precision followed by a vector splat word. I have pushed patches upstream to fix this, implemented using the following revisions: GCC trunk (6.0): 222351 GCC 5.1: 222394 GCC 4.9: 222420 GCC 4.8: 222427 I would like to see the backported patch applied to the gcc shipped with the Ubuntu 15.10 release. We should probably have a conversation about the next service pack for the 14.04 LTS release as well. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gcc-4.8/+bug/1449119/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
