Minor buglet in simplify-rtx.c

[Richard Kenner]

Sun Sep 17 10:46:17 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* simplify-rtx.c (simplify_unary_operation): Add cases
	FLOAT_EXTEND and FLOAT_TRUNCATE to ones that return 0.

*** simplify-rtx.c	2000/09/11 20:20:32	1.26
--- simplify-rtx.c	2000/09/17 14:28:58
*************** simplify_unary_operation (code, mode, op
*** 390,393 ****
--- 390,395 ----
  
  	case SQRT:
+ 	case FLOAT_EXTEND:
+ 	case FLOAT_TRUNCATE:
  	  return 0;