[r12-1441 Regression] FAIL: g++.dg/warn/Wstringop-overflow-7.C -std=gnu++98 (test for warnings, line 40) on Linux/x86_64

[r12-1441 Regression] FAIL: g++.dg/warn/Wstringop-overflow-7.C -std=gnu++98 (test for warnings, line 40) on Linux/x86_64

[sunil.k.pandey]

On Linux/x86_64,

d9f1466f88abef7c814d02ba39a6ea5ef420aaec is the first bad commit
commit d9f1466f88abef7c814d02ba39a6ea5ef420aaec
Author: Martin Sebor <msebor@redhat.com>
Date:   Mon Jun 14 16:34:48 2021 -0600

    Teach compute_objsize about placement new [PR100876].

caused

FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++14  (test for bogus messages, line 16)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++14  (test for bogus messages, line 21)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++14  (test for warnings, line 29)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++14  (test for warnings, line 36)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++17  (test for bogus messages, line 16)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++17  (test for bogus messages, line 21)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++17  (test for warnings, line 29)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++17  (test for warnings, line 36)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++2a  (test for bogus messages, line 16)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++2a  (test for bogus messages, line 21)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++2a  (test for warnings, line 29)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++2a  (test for warnings, line 36)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++98  (test for bogus messages, line 16)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++98  (test for bogus messages, line 21)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++98  (test for warnings, line 29)
FAIL: g++.dg/warn/Wmismatched-new-delete-4.C  -std=gnu++98  (test for warnings, line 36)
FAIL: g++.dg/warn/Wstringop-overflow-7.C  -std=gnu++14  (test for warnings, line 23)
FAIL: g++.dg/warn/Wstringop-overflow-7.C  -std=gnu++14  (test for warnings, line 40)
FAIL: g++.dg/warn/Wstringop-overflow-7.C  -std=gnu++17  (test for warnings, line 23)
FAIL: g++.dg/warn/Wstringop-overflow-7.C  -std=gnu++17  (test for warnings, line 40)
FAIL: g++.dg/warn/Wstringop-overflow-7.C  -std=gnu++2a  (test for warnings, line 23)
FAIL: g++.dg/warn/Wstringop-overflow-7.C  -std=gnu++2a  (test for warnings, line 40)
FAIL: g++.dg/warn/Wstringop-overflow-7.C  -std=gnu++98  (test for warnings, line 23)
FAIL: g++.dg/warn/Wstringop-overflow-7.C  -std=gnu++98  (test for warnings, line 40)

with GCC configured with

../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-1441/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/warn/Wmismatched-new-delete-4.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/warn/Wmismatched-new-delete-4.C --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/warn/Wstringop-overflow-7.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/warn/Wstringop-overflow-7.C --target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me at skpgkp2 at gmail dot com)