[r12-2766 Regression] FAIL: g++.dg/warn/Wstringop-overflow-6.C -std=gnu++2a (test for excess errors) on Linux/x86_64

[sunil.k.pandey via Gcc-patches]

On Linux/x86_64,

7b1de3eb9ed3f8dde54732d88520292c5ad1157d is the first bad commit
commit 7b1de3eb9ed3f8dde54732d88520292c5ad1157d
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Thu Aug 5 13:34:00 2021 +0100

    libstdc++: Move attributes that follow requires-clauses [PR101782]

caused

FAIL: g++.dg/warn/Wstringop-overflow-6.C  -std=gnu++2a (test for excess errors)

with GCC configured with



To reproduce:

$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/warn/Wstringop-overflow-6.C 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/warn/Wstringop-overflow-6.C 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/warn/Wstringop-overflow-6.C 
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check 
RUNTESTFLAGS="dg.exp=g++.dg/warn/Wstringop-overflow-6.C 
--target_board='unix{-m64\ -march=cascadelake}'"

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