PowerPC: implement md_operand to parse register names

[Alan Modra]

I meant to make this change before committing, to let compilers know
the code on the false branch of md_parse_name is dead.

	* config/tc-ppc.c (ppc_parse_name): Return void.
	* config/tc-ppc.h (md_parse_name): Always true.
	(ppc_parse_name): Update prototype.

diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c
index 05d8ee19be7..452fab1cbfc 100644
--- a/gas/config/tc-ppc.c
+++ b/gas/config/tc-ppc.c
@@ -862,7 +862,7 @@ static const struct pd_reg cr_cond[] =
    to use for condition codes, and recognises other registers when
    -mregnames.  */
 
-int
+void
 ppc_parse_name (const char *name, expressionS *exp, enum expr_mode mode)
 {
   const struct pd_reg *reg = NULL;
@@ -877,7 +877,7 @@ ppc_parse_name (const char *name, expressionS *exp, enum expr_mode mode)
       exp->X_op = O_register;
       exp->X_add_number = reg->value;
       exp->X_md = reg->flags;
-      return true;
+      return;
     }
 
   /* The following replaces code in expr.c operand() after the
@@ -909,8 +909,6 @@ ppc_parse_name (const char *name, expressionS *exp, enum expr_mode mode)
       exp->X_add_symbol = sym;
       exp->X_add_number = 0;
     }
-
-  return true;
 }
 
 /* Propagate X_md and check register expressions.  This is to support
diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h
index 480c952be45..de9522d4bf6 100644
--- a/gas/config/tc-ppc.h
+++ b/gas/config/tc-ppc.h
@@ -322,8 +322,9 @@ extern void ppc_frob_label (symbolS *);
 /* call md_pcrel_from_section, not md_pcrel_from */
 #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section(FIX, SEC)
 
-#define md_parse_name(name, exp, mode, c) ppc_parse_name (name, exp, mode)
-extern int ppc_parse_name (const char *, struct expressionS *, enum expr_mode);
+#define md_parse_name(name, exp, mode, c) \
+  (ppc_parse_name (name, exp, mode), true)
+extern void ppc_parse_name (const char *, struct expressionS *, enum expr_mode);
 
 #define md_optimize_expr(left, op, right) ppc_optimize_expr (left, op, right)
 extern int ppc_optimize_expr (expressionS *, operatorT, expressionS *);

-- 
Alan Modra
Australia Development Lab, IBM