** Description changed: == Comment: #0 - Heinz-Werner Seeck <heinz-werner_se...@de.ibm.com> - 2020-07-31 03:28:30 == On z13 we have that vector alignment hints are already accepted. This backport enables GAS to accept such hints not only for target z14 but also for z13. Since GCCs default target on Ubuntu is z13 for s390x, we could greatly benefit from such alignment hints. (note a separate bugzilla entry for GCC allowing to emit alignment hints for z13 will be opened shortly) This is a backport of upstreams commit 26b6ab7a0e. - - Userspace tool common name: as - - The userspace tool has the following bit modes: 64-bit + + Userspace tool common name: as + + The userspace tool has the following bit modes: 64-bit Userspace rpm: binutils - Already included within 20.10 via LP: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1888654 This should also be SRUed for 20.04 + + [Impact] + + * Vector alignment hints were enabled for z14 processors, but not z13 + + * Since the z13 processors support vector alignment hints, binutils should + have them enabled for z13 + + [Test Case] + + * Run the test suite to make sure all tests pass + + * Pull in the change, and re-run the test suite to make sure all + tests still pass. This backport includes tests for the vector + alignment hints. + + [Where problems could occur] + + * If vector alignment hints were not enabled correctly we could still + compile code with incorrectly ordered opcodes
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to binutils in Ubuntu. https://bugs.launchpad.net/bugs/1889742 Title: [UBUNTU 20.04] Accept vector alignment hints on z13 (binutils) Status in Ubuntu on IBM z Systems: In Progress Status in binutils package in Ubuntu: Fix Released Status in binutils source package in Focal: In Progress Status in binutils source package in Groovy: Fix Released Bug description: == Comment: #0 - Heinz-Werner Seeck <heinz-werner_se...@de.ibm.com> - 2020-07-31 03:28:30 == On z13 we have that vector alignment hints are already accepted. This backport enables GAS to accept such hints not only for target z14 but also for z13. Since GCCs default target on Ubuntu is z13 for s390x, we could greatly benefit from such alignment hints. (note a separate bugzilla entry for GCC allowing to emit alignment hints for z13 will be opened shortly) This is a backport of upstreams commit 26b6ab7a0e. Userspace tool common name: as The userspace tool has the following bit modes: 64-bit Userspace rpm: binutils Already included within 20.10 via LP: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1888654 This should also be SRUed for 20.04 [Impact] * Vector alignment hints were enabled for z14 processors, but not z13 * Since the z13 processors support vector alignment hints, binutils should have them enabled for z13 [Test Case] * Run the test suite to make sure all tests pass * Pull in the change, and re-run the test suite to make sure all tests still pass. This backport includes tests for the vector alignment hints. [Where problems could occur] * If vector alignment hints were not enabled correctly we could still compile code with incorrectly ordered opcodes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1889742/+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
