i386.c (notice_update_cc): Clear cc_status.value2 in the case of UNSPEC 5 (bsf).

	* i386.c (notice_update_cc): Clear cc_status.value2 in the
	case of UNSPEC 5 (bsf).

From-SVN: r20395

gcc/ChangeLog

@@ -5,6 +5,9 @@ Tue Jun  9 22:05:34 1998  Richard Henderson  <rth@cygnus.com>
 
 Wed Jun  3 23:41:24 EDT 1998  John Wehle  (john@feith.com)
 
+	* i386.c (notice_update_cc): Clear cc_status.value2 in the
+	case of UNSPEC 5 (bsf).
+
 	* i386.md (movsfcc, movdfcc, movxfcc): The floating point
 	conditional move instructions don't support signed integer
 	comparisons.

gcc/config/i386/i386.c

@@ -3673,6 +3673,7 @@ notice_update_cc (exp)
 		cc_status.flags
 		  = CC_NOT_POSITIVE | CC_NOT_NEGATIVE | CC_NO_OVERFLOW;
 		cc_status.value1 = XVECEXP (SET_SRC (exp), 0, 0);
+		cc_status.value2 = 0;
 		break;
 	      }
 	    /* FALLTHRU */