[r13-3570 Regression] FAIL: g++.dg/other/pr39060.C -std=c++98 (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

259a11555c90783e53c046c310080407ee54a31e is the first bad commit
commit 259a11555c90783e53c046c310080407ee54a31e
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Mon Oct 31 09:09:48 2022 +0100

    builtins: Add various complex builtins for _Float{16,32,64,128,32x,64x,128x}

caused

FAIL: g++.dg/other/pr39060.C  -std=c++98 (internal compiler error: canonical types differ for identical types 'void (A::)(void*)' and 'void (A::)(void*)')
FAIL: g++.dg/other/pr39060.C  -std=c++98 (test for excess errors)

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r13-3570/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/other/pr39060.C --target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me at haochen dot jiang at intel.com)