[Bug other/106451] New: [13 regression] gcc.dg/pr56837.c fails after r13-1762-gf9d4c3b45c5ed5

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106451

            Bug ID: 106451
           Summary: [13 regression] gcc.dg/pr56837.c fails after
                    r13-1762-gf9d4c3b45c5ed5
           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:f9d4c3b45c5ed5f45c8089c990dbd4e181929c3d, r13-1762-gf9d4c3b45c5ed5

make  -k check-gcc RUNTESTFLAGS="--target_board=unix'{-m32,-m64}'
dg.exp=gcc.dg/pr56837.c"
FAIL: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..c, 68, 16384.;"
1
FAIL: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..c, 68, 16384.;"
1

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/pr56837.c -m32
-fdiagnostics-plain-output -O3 -fdump-tree-optimized -mvsx -maltivec -S -o
pr56837.s^M
PASS: gcc.dg/pr56837.c (test for excess errors)
PASS: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..d, 68, 8192.;"
1
PASS: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..l, 124, 8192.;"
1
PASS: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..b, 1, 1024.;" 1
gcc.dg/pr56837.c: pattern found 0 times
FAIL: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..c, 68, 16384.;"
1
PASS: gcc.dg/pr56837.c scan-tree-dump-times optimized "memset ..v, 18, 16384.;"
1

I am seeing this on powerpc64 BE machines both power 7 and power 8. 


commit f9d4c3b45c5ed5f45c8089c990dbd4e181929c3d
Author: liuhongt <hongtao.liu@intel.com>
Date:   Tue Jul 19 17:24:52 2022 +0800

    Lower complex type move to enable vectorization for complex type
load&store.