[Bug testsuite/78740] New: test case powerpc/pr78691-ppc.c fails starting with its introduction in r243335

["seurer at linux dot vnet.ibm.com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78740

            Bug ID: 78740
           Summary: test case powerpc/pr78691-ppc.c fails starting with
                    its introduction in r243335
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at linux dot vnet.ibm.com
  Target Milestone: ---

This fails on LE and probably just needs a test case change to restrict where
it runs.

spawn /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.target/powerpc/pr78691-ppc.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -Os -m32 -S -o
pr78691-ppc.s
cc1: error: -m32 not supported in this configuration
compiler exited with status 1
output is:
cc1: error: -m32 not supported in this configuration

FAIL: gcc.target/powerpc/pr78691-ppc.c (test for excess errors)
Excess errors:
cc1: error: -m32 not supported in this configuration