[PATCH]: Fix of gcc HC11 options and reg class definition

[Stephane Carrez]

Hi!

I've committed this patch on 3_3 and mainline to fix:

   - the -mnominmax switch was not working (it didn't cleared the flag)
   - the -mnorelax switch is used by the HC11/HC12 specs but not recognized
   - a reg class to represent the soft regs as well as Z reg is necessary for
     some patterns which use 's' and 'z' constraint at the same time.

	Stephane

2003-04-12  Stephane Carrez  <stcarrez@nerim.fr>

	* config/m68hc11/m68hc11.h (TARGET_SWITCHES): Fix -mnominmax option;
	recognize -mnorelax.
	(reg_class): Add Z_OR_S_REGS to represent soft registers with Z
	(REG_CLASS_NAMES): Add its name.
	(REG_CLASS_CONTENTS): Define its content.
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