[Bug testsuite/86445] New: [9 regression] Missing warning for test case gcc/testsuite/gcc.dg/pr84100.c starting with r262513

["seurer at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86445

            Bug ID: 86445
           Summary: [9 regression] Missing warning for test case
                    gcc/testsuite/gcc.dg/pr84100.c starting with r262513
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

Executing on host: /home/seurer/gcc/build/gcc-test2/gcc/xgcc
-B/home/seurer/gcc/build/gcc-test2/gcc/
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/pr84100.c   
-fno-diagnostics-show-caret -fdiagnostics-color=never   -O2 -S -o pr84100.s   
(timeout = 300)
spawn -ignore SIGHUP /home/seurer/gcc/build/gcc-test2/gcc/xgcc
-B/home/seurer/gcc/build/gcc-test2/gcc/
/home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/pr84100.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -S -o pr84100.s
FAIL: gcc.dg/pr84100.c  (test for warnings, line 11)
PASS: gcc.dg/pr84100.c (test for excess errors)
testcase /home/seurer/gcc/gcc-test2/gcc/testsuite/gcc.dg/dg.exp completed in 0
seconds

                === gcc Summary ===

# of expected passes            1
# of unexpected failures        1


It is not generating this warning now:

home/seurer/gcc/gcc-test/gcc/testsuite/gcc.dg/pr84100.c:11:1: warning: bad
option '-falign-loops=16' to attribute 'optimize' [-Wattributes]

Note the test case was updated in r262375 just last week.