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From: "haochen.jiang" <haochenj@ecsmtp.sh.intel.com>
To: haochen.jiang@intel.com, gcc-patches@gcc.gnu.org,
	gcc-regression@gcc.gnu.org, jwakely@redhat.com
Subject: [r13-2303 Regression] FAIL: g++.dg/tree-ssa/empty-loop.C -std=gnu++20 (test for excess errors) on Linux/x86_64
Date: Thu, 01 Sep 2022 09:39:37 +0800	[thread overview]
Message-ID: <202209010139.2811dbRe3591685@shliclel314.sh.intel.com> (raw)

On Linux/x86_64,

b911ca4231a366ddfd026f190b126bd517f4e640 is the first bad commit
commit b911ca4231a366ddfd026f190b126bd517f4e640
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Aug 26 16:22:21 2022 +0100

    libstdc++: Add [[nodiscard]] attribute to <string> and <string_view>

caused

FAIL: g++.dg/tree-ssa/empty-loop.C  -std=gnu++17 (test for excess errors)
FAIL: g++.dg/tree-ssa/empty-loop.C  -std=gnu++20 (test for excess errors)

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r13-2303/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/tree-ssa/empty-loop.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/tree-ssa/empty-loop.C --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/tree-ssa/empty-loop.C --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/tree-ssa/empty-loop.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)

                 reply	other threads:[~2022-09-01  1:39 UTC|newest]

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