[Bug other/107578] New: [13 regression] r13-3761-ga239a63f868e29 causes excess errors for g++.dg/pr71488.C

[seurer at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107578

            Bug ID: 107578
           Summary: [13 regression] r13-3761-ga239a63f868e29 causes excess
                    errors for g++.dg/pr71488.C
           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:a239a63f868e29e9276088e7c0fb00804c2903ba, r13-3761-ga239a63f868e29

make  -k check-gcc RUNTESTFLAGS="dg.exp=g++.dg/pr71488.C"
FAIL: g++.dg/pr71488.C   (test for excess errors)
# of expected passes            1
# of unexpected failures        1


Excess errors:
/home/seurer/gcc/git/build/gcc-test/powerpc64le-unknown-linux-gnu/libstdc++-v3/include/bits/valarray_array.h:154:27:
warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)'
writing 8 or more bytes into a region of size 0 overflows the destination
[-Wstringop-overflow=]



commit a239a63f868e29e9276088e7c0fb00804c2903ba (HEAD, refs/bisect/bad)
Author: Aldy Hernandez <al...@redhat.com>
Date:   Fri Nov 4 22:24:42 2022 +0100

    Improve multiplication by powers of 2 in range-ops.