[r15-1394 Regression] FAIL: gcc.dg/pr115109.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c9b96a68860bfdee49d40b4a844af7c5ef69cd12 is the first bad commit
commit c9b96a68860bfdee49d40b4a844af7c5ef69cd12
Author: Martin Uecker <uec...@tugraz.at>
Date:   Sat May 18 22:00:04 2024 +0200

    c23: Fix for redeclared enumerator initialized with different type 
[PR115109]

caused

FAIL: gcc.dg/c23-tag-enum-6.c  (test for errors, line 10)
FAIL: gcc.dg/c23-tag-enum-6.c  (test for errors, line 13)
FAIL: gcc.dg/c23-tag-enum-7.c (test for excess errors)
FAIL: gcc.dg/pr115109.c (test for excess errors)

with GCC configured with

../../gcc/configure 
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1394/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=gcc.dg/c23-tag-enum-6.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/c23-tag-enum-6.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/c23-tag-enum-7.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/c23-tag-enum-7.c 
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr115109.c 
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr115109.c 
--target_board='unix{-m32\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me 
at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command 
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)