[Bug target/60203] New: Support long double/_Decimal128 direct move on power8

[meissner at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60203

            Bug ID: 60203
           Summary: Support long double/_Decimal128 direct move on power8
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: meissner at gcc dot gnu.org

Created attachment 32139
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32139&action=edit
Bug to show the problem.

The direct move support did not include support for moving long double (TFmode)
and _Decimal128 (TDmode) between GPRs and VSX registers.  The testcase for PR
25972 when compiled for power8 should not move registers to the stack and to
the GPRs.