[Bug middle-end/78256] New: test case gcc.dg/pr35691-1.c fails starting with its introduction in r241915

[seurer at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78256

            Bug ID: 78256
           Summary: test case gcc.dg/pr35691-1.c fails starting with its
                    introduction in r241915
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at linux dot vnet.ibm.com
  Target Milestone: ---

Executing on host: /home/seurer/gcc/build/gcc-trunk/gcc/xgcc
-B/home/seurer/gcc/build/gcc-trunk/gcc/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gcc.dg/pr35691-1.c 
-fno-diagnostics-show-caret -fdiagnostics-color=never   -O2
-fdump-tree-forwprop-details -S   -o pr35691-1.s    (timeout = 300)
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.dg/pr35691-1.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2
-fdump-tree-forwprop-details -S -o pr35691-1.s
PASS: gcc.dg/pr35691-1.c (test for excess errors)
FAIL: gcc.dg/pr35691-1.c scan-tree-dump forwprop1 "gimple_simplified to _[0-9]*
= \\(int\\) z1_[0-9]*\\(D\\);"

This fails on power on both BE and LE.