fp-bit.c (abort): Add noreturn attribute.

	* config/fp-bit.c (abort): Add noreturn attribute.

	* config/avr/avr.c (avr_naked_function_p): Use gcc_assert and
	gcc_unreachable as appropriate.
	(ptrreg_to_str, cond_string, avr_normalize_condition): Likewise.
	* config/avr/avr.h (ASM_OUTPUT_REG_PUSH,
	ASM_OUTPUT_REG_POP): Likewise.

From-SVN: r98854

gcc/ChangeLog

+2005-04-27  Nathan Sidwell  <nathan@codesourcery.com>
+
+	* config/fp-bit.c (abort): Add noreturn attribute.
+
+	* config/avr/avr.c (avr_naked_function_p): Use gcc_assert and
+	gcc_unreachable as appropriate.
+	(ptrreg_to_str, cond_string, avr_normalize_condition): Likewise.
+	* config/avr/avr.h (ASM_OUTPUT_REG_PUSH,
+	ASM_OUTPUT_REG_POP): Likewise.
+
 2005-04-27  Paolo Bonzini  <bonzini@gnu.org>
 
 	* tree-complex.c (expand_vector_operations_1): Do not build

gcc/config/avr/avr.c

@@ -380,8 +380,7 @@ avr_naked_function_p (tree func)
 {
   tree a;
 
-  if (TREE_CODE (func) != FUNCTION_DECL)
-    abort ();
+  gcc_assert (TREE_CODE (func) == FUNCTION_DECL);
   
   a = lookup_attribute ("naked", DECL_ATTRIBUTES (func));
   return a != NULL_TREE;
@@ -1030,7 +1029,7 @@ ptrreg_to_str (int regno)
     case REG_Y: return "Y";
     case REG_Z: return "Z";
     default:
-      abort ();
+      gcc_unreachable ();
     }
   return NULL;
 }
@@ -1062,7 +1061,7 @@ cond_string (enum rtx_code code)
     case LTU:
       return "lo";
     default:
-      abort ();
+      gcc_unreachable ();
     }
 }
 
@@ -5534,7 +5533,7 @@ avr_normalize_condition (RTX_CODE condition)
     case LEU:
       return LTU;
     default:
-      abort ();
+      gcc_unreachable ();
     }
 }
 

gcc/config/avr/avr.h

@@ -668,15 +668,13 @@ sprintf (STRING, "*.%s%lu", PREFIX, (unsigned long)(NUM))
 
 #define ASM_OUTPUT_REG_PUSH(STREAM, REGNO)	\
 {						\
-  if (REGNO > 31)				\
-    abort ();					\
+  gcc_assert (REGNO < 32);			\
   fprintf (STREAM, "\tpush\tr%d", REGNO);	\
 }
 
 #define ASM_OUTPUT_REG_POP(STREAM, REGNO)	\
 {						\
-  if (REGNO > 31)				\
-    abort ();					\
+  gcc_assert (REGNO < 32);			\
   fprintf (STREAM, "\tpop\tr%d", REGNO);	\
 }
 

gcc/config/fp-bit.c

@@ -81,7 +81,7 @@ Boston, MA 02111-1307, USA.  */
 #endif
 
 #ifdef EXTENDED_FLOAT_STUBS
-extern void abort (void);
+extern __attribute__ ((__noreturn__)) void abort (void);
 void __extendsfxf2 (void) { abort(); }
 void __extenddfxf2 (void) { abort(); }
 void __truncxfdf2 (void) { abort(); }