pa.h (REG_CLASSES): Delete GENERAL_OR_FP_OR_SNAKE_FP register class, it's not needed anymore.

	* pa.h (REG_CLASSES): Delete GENERAL_OR_FP_OR_SNAKE_FP register
	class, it's not needed anymore.  Delete all references.  'Z'
	register class is now "ALL_REGS".

From-SVN: r3297

gcc/config/pa/pa.h

@@ -504,15 +504,11 @@ extern int leaf_function;
      fmpyadd and fmpysub are restricted.
 
      FP_OR_SNAKE_FP_REGS is for reload_{in,out}di only and isn't used
-     anywhere else.
-
-     GENERAL_OR_FP_OR_SNAKE_FP_REGS is for reload_{in,out}si only and
-     isn't used anywhereelse.  */
+     anywhere else.  */
 
 enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FP_REGS, GENERAL_OR_FP_REGS,
   HI_SNAKE_FP_REGS, SNAKE_FP_REGS, GENERAL_OR_SNAKE_FP_REGS,
-  FP_OR_SNAKE_FP_REGS, GENERAL_OR_FP_OR_SNAKE_FP_REGS, SHIFT_REGS, 
-  ALL_REGS, LIM_REG_CLASSES}; 
+  FP_OR_SNAKE_FP_REGS, SHIFT_REGS, ALL_REGS, LIM_REG_CLASSES}; 
 
 #define N_REG_CLASSES (int) LIM_REG_CLASSES
 
@@ -521,8 +517,7 @@ enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FP_REGS, GENERAL_OR_FP_REGS,
 #define REG_CLASS_NAMES \
   { "NO_REGS", "R1_REGS", "GENERAL_REGS", "FP_REGS", "GENERAL_OR_FP_REGS",\
     "HI_SNAKE_FP_REGS", "SNAKE_FP_REGS", "GENERAL_OR_SNAKE_FP_REGS",\
-    "FP_OR_SNAKE_FP_REGS", "GENERAL_OR_FP_OR_SNAKE_FP_REGS", "SHIFT_REGS",\
-    "ALL_REGS"}
+    "FP_OR_SNAKE_FP_REGS", "SHIFT_REGS", "ALL_REGS"}
 
 /* Define which registers fit in which classes.
    This is an initializer for a vector of HARD_REG_SET
@@ -539,7 +534,6 @@ enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FP_REGS, GENERAL_OR_FP_REGS,
   {0, 0xffff0000, ~0, 0xffff},	/* SNAKE_FP_REGS */	\
   {-2, 0xffff0000, ~0, 0xffff},	/* GENERAL_OR_SNAKE_FP_REGS */\
   {0, ~0, ~0, 0xffff},		/* FP_OR_SNAKE_FP_REGS */\
-  {-2, ~0, ~0, 0xffff},		/* GENERAL_OR_FP_OR_SNAKE_FP_REGS */\
   {0, 0, 0, 0x10000},		/* SHIFT_REGS */	\
   {-2, ~0, ~0, 0x1ffff}}	/* ALL_REGS */
 
@@ -564,7 +558,9 @@ enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FP_REGS, GENERAL_OR_FP_REGS,
 #define FP_REG_CLASS_P(CLASS) \
   (CLASS == FP_REGS || CLASS == SNAKE_FP_REGS || CLASS == HI_SNAKE_FP_REGS)
 
-/* Get reg_class from a letter such as appears in the machine description.  */
+/* Get reg_class from a letter such as appears in the machine description.
+   Note 'Z' is not the same as 'r' since SHIFT_REGS is not part of 
+   GENERAL_REGS.  */
 
 #define REG_CLASS_FROM_LETTER(C) \
   ((C) == 'f' ? (!TARGET_SNAKE ? FP_REGS : NO_REGS) :		\
@@ -573,7 +569,7 @@ enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FP_REGS, GENERAL_OR_FP_REGS,
      ((C) == 'q' ? SHIFT_REGS :					\
       ((C) == 'a' ? R1_REGS :					\
        ((C) == 'z' ? FP_OR_SNAKE_FP_REGS :			\
-        ((C) == 'Z' ? GENERAL_OR_FP_OR_SNAKE_FP_REGS : NO_REGS)))))))
+        ((C) == 'Z' ? ALL_REGS : NO_REGS)))))))
 
 /* The letters I, J, K, L and M in a register constraint string
    can be used to stand for particular ranges of immediate operands.