[Bug target/81959] New: PowerPC __float128 optimization fails with integer PRE_INC addresses

[meissner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81959

            Bug ID: 81959
           Summary: PowerPC __float128 optimization fails with integer
                    PRE_INC addresses
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: meissner at gcc dot gnu.org
  Target Milestone: ---

Created attachment 42033
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42033&action=edit
Sample test

If you are doing 32-bit signed integer to IEEE 128-bit floating point on
power9, using an array where PRE_INC addresses are used, the compiler will fail
with an INSN not found error message.