[Bug target/46378] New: Powerpc -mcpu=power5 selects FP found instructions (should use -mcpu=power5+)

[meissner at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46378

           Summary: Powerpc -mcpu=power5 selects FP found instructions
                    (should use -mcpu=power5+)
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: meiss...@gcc.gnu.org


Created attachment 22335
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22335
Patch to fix the problem.

In my change on August 23rd, 2010 and September 2nd, 2010, I mistakenly enabled
the floating round instructions (-mfprnd) for -mcpu=power5 (ISA 2.02), while
these instructions weren't added until later (ISA 2.04, or -mcpu=power5+).  The
-mcpu=power5 option should not enable the floating point round instructions.