stmt.c (expand_return): Clear destination instead of clobbering it when setting…

stmt.c (expand_return): Clear destination instead of clobbering it when setting a return value via bitsets.


2001-12-04  Andrew MacLeod  <amacleod@redhat.com>

	* stmt.c (expand_return): Clear destination instead of clobbering it
	when setting a return value via bitsets.

From-SVN: r47616

gcc/ChangeLog

+2001-12-04  Andrew MacLeod  <amacleod@redhat.com>
+
+	* stmt.c (expand_return): Clear destination instead of clobbering it 
+	when setting a return value via bitsets.
+
 2001-12-04  Alexandre Oliva  <aoliva@redhat.com>
 
 	* tree.c (get_callee_fndecl): Only use DECL_ABSTRACT_ORIGIN if

gcc/stmt.c

@@ -3233,8 +3233,8 @@ expand_return (retval)
 	      dst = gen_reg_rtx (word_mode);
 	      result_pseudos[xbitpos / BITS_PER_WORD] = dst;
 
-	      /* Clobber the destination before we move anything into it.  */
-	      emit_insn (gen_rtx_CLOBBER (VOIDmode, dst));
+	      /* Clear the destination before we move anything into it.  */
+	      emit_move_insn (dst, CONST0_RTX (GET_MODE (dst)));
 	    }
 
 	  /* We need a new source operand each time bitpos is on a word