i386.c (ix86_function_regparm): Ditto.

i386.c (ix86_function_regparm): Ditto.

	* config/i386/i386.c (ix86_function_regparm): Ditto. Use REGPARM_MAX
	to check that no regparm hard register is taken by a fixed register
	variable. Check up to and including DI_REG when adjusting regparm
	value due to fixed regs usage.
	(rep_prefix_usable): Check fixed_regs array, not global_regs array for
	available hard registers.
	(ix86_expand_strlen): Ditto.
	* config/i386/i386.md (strmov): Ditto.
	(cmpstrnsi): Ditto.

From-SVN: r130737