[PATCH]: Fix build of libgcc for HC11/HC12 on mainline

[Stephane Carrez <stcarrez at nerim dot fr>]

Hi!

Committed this patch on mainline to fix the build of libgcc for HC11/HC12.

When reloading some instructions, it happened that some registers have
no hard register allocated for them (reg_renumber[regno] == -1) and
the -1 is used as an index in a table to check if the register is a valid
address register.  The REG_VALID_P macro was supposed to check that.

Stephane

2005-05-08  Stephane Carrez  <stcarrez@nerim.fr>

	* config/m68hc11/m68hc11.h (REG_VALID_P): A regno must be >= 0
	and -1 can happen in reg_renumber when no hard register is assigned.

Index: config/m68hc11/m68hc11.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/m68hc11/m68hc11.h,v
retrieving revision 1.93
diff -u -p -r1.93 m68hc11.h
--- config/m68hc11/m68hc11.h	8 May 2005 19:53:42 -0000	1.93
+++ config/m68hc11/m68hc11.h	8 May 2005 21:48:03 -0000
@@ -1069,7 +1069,7 @@ extern enum reg_class m68hc11_index_reg_
 
 
 /* Internal macro, return 1 if REGNO is a valid base register.  */
-#define REG_VALID_P(REGNO) (1)	/* ? */
+#define REG_VALID_P(REGNO) ((REGNO) >= 0)
 
 extern unsigned char m68hc11_reg_valid_for_base[FIRST_PSEUDO_REGISTER];
 #define REG_VALID_FOR_BASE_P(REGNO) \

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