[Bug other/97299] New: [11 regression] gcc.dg/vect/slp-reduc-3.c fails after r11-3563

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97299

            Bug ID: 97299
           Summary: [11 regression] gcc.dg/vect/slp-reduc-3.c fails after
                    r11-3563
           Product: gcc
           Version: 11.0
            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:9ff2bcd9df8f189dcc94e3bef33f7f282dcaa780, r11-3563
make  -k check-gcc RUNTESTFLAGS="vect.exp=gcc.dg/vect/slp-reduc-3.c"
FAIL: gcc.dg/vect/slp-reduc-3.c scan-tree-dump-times vect "VEC_PERM_EXPR" 0
FAIL: gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects  scan-tree-dump-times
vect "VEC_PERM_EXPR" 0
# of expected passes            6
# of unexpected failures        2

commit 9ff2bcd9df8f189dcc94e3bef33f7f282dcaa780 (HEAD, refs/bisect/bad)
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Sep 30 16:12:20 2020 +0200


Executing on host: /home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/ exceptions_enabled346952.cc   
-fdiagnostics-plain-output  -S -o exceptions_enabled346952.s    (timeout = 300)
spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/ exceptions_enabled346952.cc
-fdiagnostics-plain-output -S -o exceptions_enabled346952.s
PASS: gcc.dg/vect/slp-reduc-3.c (test for excess errors)
Setting LD_LIBRARY_PATH to
:/home/seurer/gcc/git/build/gcc-test/gcc::/home/seurer/gcc/git/build/gcc-test/gcc:/home/seurer/gcc/git/build/gcc-test/./gmp/.libs:/home/seurer/gcc/git/build/gcc-test/./prev-gmp/.libs:/home/seurer/gcc/git/build/gcc-test/./mpfr/src/.libs:/home/seurer/gcc/git/build/gcc-test/./prev-mpfr/src/.libs:/home/seurer/gcc/git/build/gcc-test/./mpc/src/.libs:/home/seurer/gcc/git/build/gcc-test/./prev-mpc/src/.libs:/home/seurer/gcc/git/build/gcc-test/./isl/.libs:/home/seurer/gcc/git/build/gcc-test/./prev-isl/.libs
Execution timeout is: 300
spawn [open ...]
PASS: gcc.dg/vect/slp-reduc-3.c execution test
gcc.dg/vect/slp-reduc-3.c: pattern found 0 times
XFAIL: gcc.dg/vect/slp-reduc-3.c scan-tree-dump-times vect
"vect_recog_dot_prod_pattern: detected" 1
PASS: gcc.dg/vect/slp-reduc-3.c scan-tree-dump-times vect "vectorized 1 loops"
2
gcc.dg/vect/slp-reduc-3.c: pattern found 0 times
XFAIL: gcc.dg/vect/slp-reduc-3.c scan-tree-dump-times vect "vectorizing stmts
using SLP" 1
gcc.dg/vect/slp-reduc-3.c: pattern found 12 times
FAIL: gcc.dg/vect/slp-reduc-3.c scan-tree-dump-times vect "VEC_PERM_EXPR" 0
Executing on host: /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/slp-reduc-3.c   
-fdiagnostics-plain-output  -flto -ffat-lto-objects -maltivec -mpower8-vector
-ftree-vectorize -fno-tree-loop-distribute-patterns -fno-vect-cost-model
-fno-common -O2 -fdump-tree-vect-details --param=vect-epilogues-nomask=0  -lm 
-o ./slp-reduc-3.exe    (timeout = 300)
spawn -ignore SIGHUP /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/slp-reduc-3.c
-fdiagnostics-plain-output -flto -ffat-lto-objects -maltivec -mpower8-vector
-ftree-vectorize -fno-tree-loop-distribute-patterns -fno-vect-cost-model
-fno-common -O2 -fdump-tree-vect-details --param=vect-epilogues-nomask=0 -lm -o
./slp-reduc-3.exe
PASS: gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects (test for excess
errors)
Setting LD_LIBRARY_PATH to
:/home/seurer/gcc/git/build/gcc-test/gcc::/home/seurer/gcc/git/build/gcc-test/gcc:/home/seurer/gcc/git/build/gcc-test/./gmp/.libs:/home/seurer/gcc/git/build/gcc-test/./prev-gmp/.libs:/home/seurer/gcc/git/build/gcc-test/./mpfr/src/.libs:/home/seurer/gcc/git/build/gcc-test/./prev-mpfr/src/.libs:/home/seurer/gcc/git/build/gcc-test/./mpc/src/.libs:/home/seurer/gcc/git/build/gcc-test/./prev-mpc/src/.libs:/home/seurer/gcc/git/build/gcc-test/./isl/.libs:/home/seurer/gcc/git/build/gcc-test/./prev-isl/.libs
Execution timeout is: 300
spawn [open ...]
PASS: gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects execution test
gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects : pattern found 0 times
XFAIL: gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects  scan-tree-dump-times
vect "vect_recog_dot_prod_pattern: detected" 1
PASS: gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects  scan-tree-dump-times
vect "vectorized 1 loops" 2
gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects : pattern found 0 times
XFAIL: gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects  scan-tree-dump-times
vect "vectorizing stmts using SLP" 1
gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects : pattern found 12 times
FAIL: gcc.dg/vect/slp-reduc-3.c -flto -ffat-lto-objects  scan-tree-dump-times
vect "VEC_PERM_EXPR" 0
testcase /home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/vect/vect.exp
completed in 2 seconds

                === gcc Summary ===

# of expected passes            6
# of unexpected failures        2