[Bug 1638055] Re: redundant swaps when using vec_vsx_ld/st

Wed Nov 9 19:52:24 UTC 2016

This bug was fixed in the package gcc-5 - 5.4.0-6ubuntu1~16.04.4

---------------
gcc-5 (5.4.0-6ubuntu1~16.04.4) xenial-security; urgency=medium

  * SRU
    - Fix PR target/72863, redundant swaps when using vec_vsx_ld/st,
      taken from the gcc-5 branch. LP: #1638055.
    - Fix PR rtl-optimization/71709, taken from the gcc-5 branch. LP: #1628207.

 -- Matthias Klose <doko at ubuntu.com>  Wed, 02 Nov 2016 19:23:52 +0100

** Changed in: gcc-5 (Ubuntu)
       Status: New => Fix Released

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Title:
  redundant swaps when using vec_vsx_ld/st

Status in gcc-5 package in Ubuntu:
  Fix Released

Bug description:
  ---Problem Description---
  Please pick up r239762 from the FSF gcc-5-branch as a bug fix for upstream bug PR72863.  In the best case, the unfixed compiler will produce inefficient code, but it can also cause incorrect code to be generated at high optimization levels.  The testcase in the upstream bugzilla can be used to verify the fix.

  ---Steps to Reproduce---
   See testcase in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72863

  SRU acceptance criteria: The new test case passes, and the build
  doesn't show regressions.

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