[r10-9070 Regression] FAIL: gcc.dg/debug/dwarf2/pr97060.c scan-assembler-times DW_AT_declaration 2 on Linux/x86_64

[sunil.k.pandey]

On Linux/x86_64,

38888c45da4414884a5424484f5db1ab951d9de6 is the first bad commit
commit 38888c45da4414884a5424484f5db1ab951d9de6
Author: Jason Merrill <jason@redhat.com>
Date:   Tue Nov 10 18:02:04 2020 -0500

    dwarf2: Set DW_AT_declaration for undefined fns [PR97060]

caused

FAIL: gcc.dg/debug/dwarf2/pr97060.c scan-assembler-times DW_AT_declaration 2

with GCC configured with

../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-10/releases/gcc-10/r10-9070/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="dwarf2.exp=gcc.dg/debug/dwarf2/pr97060.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dwarf2.exp=gcc.dg/debug/dwarf2/pr97060.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dwarf2.exp=gcc.dg/debug/dwarf2/pr97060.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dwarf2.exp=gcc.dg/debug/dwarf2/pr97060.c --target_board='unix{-m64\ -march=cascadelake}'"

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