linux-kernel - mipsel-linux-gnu-gcc: error: unrecognized command line option '-mcompact-branches=optimal'

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Message-ID: <201608230244.BwBif0jR%fengguang.wu@intel.com>
Date:   Tue, 23 Aug 2016 02:37:46 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Paul Burton <paul.burton@...tec.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Ralf Baechle <ralf@...ux-mips.org>
Subject: mipsel-linux-gnu-gcc: error: unrecognized command line option
 '-mcompact-branches=optimal'

Hi Paul,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   fa8410b355251fd30341662a40ac6b22d3e38468
commit: c1a0e9bc885d46e519fd87d35af6a7937abfb986 MIPS: Allow compact branch policy to be changed
date:   10 months ago
config: mips-malta_qemu_32r6_defconfig (attached as .config)
compiler: mipsel-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout c1a0e9bc885d46e519fd87d35af6a7937abfb986
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All errors (new ones prefixed by >>):

>> mipsel-linux-gnu-gcc: error: unrecognized command line option '-mcompact-branches=optimal'
>> mipsel-linux-gnu-gcc: error: unrecognized command line option '-mcompact-branches=optimal'
   make[2]: *** [kernel/bounds.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

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