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MIPS: Loongson-3: Improve -march option and move it to Platform
If GCC >= 4.9 and Binutils >=2.25, we use -march=loongson3a, otherwise we use -march=mips64r2, this can slightly improve performance. Besides, arch/mips/loongson64/Platform is a better location rather than arch/ mips/Makefile. Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/12161/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Huacai Chen
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Ralf Baechle
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Jan 22, 2016
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