[Bug other/107338] New: new test case gcc.dg/vect/vect-bitfield-read-7.c in r13-3413-ge10ca9544632db fails

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107338

            Bug ID: 107338
           Summary: new test case gcc.dg/vect/vect-bitfield-read-7.c in
                    r13-3413-ge10ca9544632db fails
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:e10ca9544632dbff4759b4b92886cd96d0b9bdfe, r13-3413-ge10ca9544632db
make  -k check-gcc RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-bitfield-read-7.c"
FAIL: gcc.dg/vect/vect-bitfield-read-7.c execution test
FAIL: gcc.dg/vect/vect-bitfield-read-7.c -flto -ffat-lto-objects execution test
# of expected passes            4
# of unexpected failures        2

I am only seeing this on BE systems (both power 7 and 8) and it fails the same
way for both 32 and 64 bits.  There are no failure messages on the execution.

I tried a debug compilation but the traceback is not helpful:

seurer@makalu-lp1:~/gcc/git/build/gcc-test$
/home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/vect/vect-bitfield-read-7.c 
-m64  -fdiagnostics-plain-output  -flto -ffat-lto-objects -maltivec
-mpower8-vector -ftree-vectorize -fno-tree-loop-distribute-patterns
-fno-vect-cost-model -fno-common -O2 -g3 -fdump-tree-vect-details  -lm  -o
./vect-bitfield-read-7.exe

seurer@makalu-lp1:~/gcc/git/build/gcc-test$ gdb ./vect-bitfield-read-7.exe 
(gdb) run
Starting program:
/home/seurer/gcc/git/build/gcc-test/./vect-bitfield-read-7.exe 

Program received signal SIGABRT, Aborted.
0x00003fffb7cd268c in __GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:55
55        return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) where
#0  0x00003fffb7cd268c in __GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:55
#1  0x00003fffb7cd4878 in __GI_abort () at abort.c:90
#2  0x0000000010000600 in .main ()

There's only one abort in the test case on line 37:

  if (f(&A[0], N) != RES)
    abort ();



commit e10ca9544632dbff4759b4b92886cd96d0b9bdfe
Author: Andre Vieira <andre.simoesdiasvieira@arm.com>
Date:   Thu Oct 20 15:54:39 2022 +0100

    vect: Fix vectype when widening container type in bitfield pattern
[PR107326]