[Bug target/85424] The __builtin_packlongdouble function might have issues with the output overlapping the inputs

[meissner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85424

--- Comment #2 from Michael Meissner <meissner at gcc dot gnu.org> ---
Author: meissner
Date: Mon Jun 25 23:28:27 2018
New Revision: 262122

URL: https://gcc.gnu.org/viewcvs?rev=262122&root=gcc&view=rev
Log:
2018-06-25  Michael Meissner  <meiss...@linux.vnet.ibm.com>

        Back port from trunk
        2018-04-17  Michael Meissner  <meiss...@linux.vnet.ibm.com>

        PR target/85424
        * config/rs6000/rs6000.md (pack<mode>): Do not try handle a pack
        where the inputs overlap with the output.


Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/config/rs6000/rs6000.md