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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug driver/97058] New: invalid "cc1: warning: '-Werror=' argument
 '-funroll-completely-grow-size' is not valid for C"
Date: Tue, 15 Sep 2020 17:45:13 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: driver
X-Bugzilla-Version: 11.0
X-Bugzilla-Keywords: diagnostic
X-Bugzilla-Severity: normal
X-Bugzilla-Who: zsojka at seznam dot cz
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97058

            Bug ID: 97058
           Summary: invalid "cc1: warning: '-Werror=3D' argument
                    '-funroll-completely-grow-size' is not valid for C"
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: normal
          Priority: P3
         Component: driver
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu

Compiler output:
$ echo '' > tst.c
$ gcc -Wno-multichar -funroll-completely-grow-size -c tst.c
cc1: warning: '-Werror=3D' argument '-funroll-completely-grow-size' is not =
valid
for C
$ gcc -Wno-multichar -funroll-completely-grow-size -xc++ -c tst.c
cc1plus: warning: '-Werror=3D' argument '-funroll-completely-grow-size' is =
not
valid for C++

$ gcc -v
Using built-in specs.
COLLECT_GCC=3D/repo/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=3D/repo/gcc-trunk/binary-trunk-r11-3201-20200915093938-=
g0f079e104a8-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-l=
inux-gnu/11.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=3Dc,c++
--enable-valgrind-annotations --disable-nls --enable-checking=3Dyes,rtl,df,=
extra
--with-cloog --with-ppl --with-isl --build=3Dx86_64-pc-linux-gnu
--host=3Dx86_64-pc-linux-gnu --target=3Dx86_64-pc-linux-gnu
--with-ld=3D/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=3D/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=3D/repo/gcc-trunk//binary-trunk-r11-3201-20200915093938-g0f079e104=
a8-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 11.0.0 20200915 (experimental) (GCC)=