[Bug 1888653] Re: [UBUNTU 20.10] GCC: Accept vector alignment hints on z13

[Dimitri John Ledkov]

releases/gcc-9 as commit 313e02cfb97

Has been available in Groovy since 11th of August, when 9.3.0-17ubuntu1
migrated, but the change was part of the 16ubuntu1 upload.

gcc-9 (9.3.0-16ubuntu1) groovy; urgency=medium

  * Merge with Debian; remaining changes:
    - Build from upstream sources.
    - Disable the LTO build on arm64, armhf for now, takes 24+ hours ...

 -- Matthias Klose <doko at ubuntu.com>  Tue, 21 Jul 2020 11:57:43 +0200

gcc-9 (9.3.0-16) unstable; urgency=medium

  * Update to git 20200721 from the gcc-9 branch.
    - Fix PR target/94891 (AArch64), PR target/94791 (AArch64),
      PR target/96001 (AArch64).
    - Fix missing dependencies for selftests which occasionally causes
      failed builds. Addresses: #960913.
  * Build the GC enabled libobjc on arm64, mips and mipsel as well.

 -- Matthias Klose <doko at debian.org>  Tue, 21 Jul 2020 11:49:23 +0200

** Changed in: gcc-9 (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1888653

Title:
  [UBUNTU 20.10] GCC: Accept vector alignment hints on z13

Status in Ubuntu on IBM z Systems:
  New
Status in gcc-10 package in Ubuntu:
  Fix Released
Status in gcc-9 package in Ubuntu:
  Fix Released

Bug description:
  On z13 we have that vector alignment hints are already accepted. This
  backport enables GCC to emit such hints not only for target z14 but
  also for z13 in case GAS accepts them on z13, too. Since GCC's default
  target on Ubuntu is z13 for s390x, we could greatly benefit from such
  alignment hints. (note a separate bugzilla entry for binutils/GAS
  allowing to accept alignment hints for z13 has been opened)

  This is a backport of upstream commits 313e02cfb97 and 710f7d977d1.

  ---Additional Hardware Info---
  n/a 

   
  ---uname output---
  n/a
   
  ---Debugger Data---
  n/a 
   
  Machine Type = z13 2964 
   
  ---Steps to Reproduce---
   n/a
   
  Userspace tool common name: gcc 
   
  The userspace tool has the following bit modes: 64-bit 

  Userspace rpm: gcc

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