[Bug testsuite/93935] New: [9/10 regression] gcc.dg/vect/bb-slp-over-widen-2.c fails starting with r262371 (r10-6856)

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93935

            Bug ID: 93935
           Summary: [9/10 regression] gcc.dg/vect/bb-slp-over-widen-2.c
                    fails starting with r262371 (r10-6856)
           Product: gcc
           Version: 9.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

git g:68f8763d57ab6e90f9d78ec0b0e6b71241676a5c, r10-6856

This is probably a similar issue on power 7 for
gcc.dg/vect/bb-slp-over-widen-2.c as for gcc.dg/vect/bb-slp-over-widen-1.c in
pr87304.  r267528 was a fix for gcc.dg/vect/bb-slp-over-widen-1.c.  Occurs in
gcc 9 and trunk.

Sorry I missed this.


make -k check-gcc RUNTESTFLAGS=vect.exp="gcc.dg/vect/bb-slp-over-widen-*.c"

# of expected passes            16
# of unexpected failures        2


Executing on host: /home/seurer/gcc/git/build/gcc-9-test2/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-9-test2/gcc/
/home/seurer/gcc/git/gcc-9-test2/gcc/testsuite/gcc.dg/vect/bb-slp-over-widen-2.c
   -fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never   -maltivec -mvsx -mno-allow-movmisalign
-ftree-vectorize -fno-vect-cost-model -fno-common -O2 -fdump-tree-slp-details 
-lm  -o ./bb-slp-over-widen-2.exe    (timeout = 300)
spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-9-test2/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-9-test2/gcc/
/home/seurer/gcc/git/gcc-9-test2/gcc/testsuite/gcc.dg/vect/bb-slp-over-widen-2.c
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -maltivec -mvsx -mno-allow-movmisalign
-ftree-vectorize -fno-vect-cost-model -fno-common -O2 -fdump-tree-slp-details
-lm -o ./bb-slp-over-widen-2.exe
PASS: gcc.dg/vect/bb-slp-over-widen-2.c (test for excess errors)
Setting LD_LIBRARY_PATH to
:/home/seurer/gcc/git/build/gcc-9-test2/gcc::/home/seurer/gcc/git/build/gcc-9-test2/gcc:/home/seurer/gcc/git/build/gcc-9-test2/./gmp/.libs:/home/seurer/gcc/git/build/gcc-9-test2/./prev-gmp/.libs:/home/seurer/gcc/git/build/gcc-9-test2/./mpfr/src/.libs:/home/seurer/gcc/git/build/gcc-9-test2/./prev-mpfr/src/.libs:/home/seurer/gcc/git/build/gcc-9-test2/./mpc/src/.libs:/home/seurer/gcc/git/build/gcc-9-test2/./prev-mpc/src/.libs:/home/seurer/gcc/git/build/gcc-9-test2/./isl/.libs:/home/seurer/gcc/git/build/gcc-9-test2/./prev-isl/.libs
Execution timeout is: 300
spawn [open ...]
PASS: gcc.dg/vect/bb-slp-over-widen-2.c execution test
PASS: gcc.dg/vect/bb-slp-over-widen-2.c scan-tree-dump slp2 "demoting int to
signed short"
PASS: gcc.dg/vect/bb-slp-over-widen-2.c scan-tree-dump slp2 "demoting int to
unsigned short"
gcc.dg/vect/bb-slp-over-widen-2.c: pattern found 0 times
FAIL: gcc.dg/vect/bb-slp-over-widen-2.c scan-tree-dump-times slp2 "basic block
vectorized" 2

The second failure is similar.