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* config/sh/sh.opt (mfixed-range): New option. * config/sh/sh-protos.h (sh_fix_range): Declare. * config/sh/sh.c (sh_fix_range): New function. * config/sh/sh.h (sh_fixed_range_str): Declare. (OVERRIDE_OPTIONS): Call sh_fix_range if sh_fixed_range_str is not empty. * doc/invoke.texi (SH Options): Document -mfixed-range. From-SVN: r135779
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