re PR target/30485 (ICE in rs6000_emit_vector_compare when building with -fno-trapping-math)

2007-01-18  Josh Conner  <jconner@apple.com>

	PR target/30485
	* config/rs6000/rs6000.c (rs6000_emit_vector_compare): Add
	support for UNLE, UNLT, UNGE, and UNGT.

From-SVN: r120902

gcc/ChangeLog

+2007-01-18  Josh Conner  <jconner@apple.com>
+
+	PR target/30485
+	* config/rs6000/rs6000.c (rs6000_emit_vector_compare): Add
+	support for UNLE, UNLT, UNGE, and UNGT.
+
 2007-01-18  Jan Hubicka  <jh@suse.cz>
 
 	* tree-vrp.c (finalize_jump_threads): Do not call cleanup_cfg by hand.

gcc/config/rs6000/rs6000.c

@@ -11890,10 +11890,18 @@ rs6000_emit_vector_compare (enum rtx_code rcode,
 	  try_again = true;
 	  break;
 	case NE:
-	  /* Treat A != B as ~(A==B).  */
+	case UNLE:
+	case UNLT:
+	case UNGE:
+	case UNGT:
+	  /* Invert condition and try again.
+	     e.g., A != B becomes ~(A==B).  */
 	  {
+	    enum rtx_code rev_code;
 	    enum insn_code nor_code;
-	    rtx eq_rtx = rs6000_emit_vector_compare (EQ, op0, op1,
+
+	    rev_code = reverse_condition_maybe_unordered (rcode);
+	    rtx eq_rtx = rs6000_emit_vector_compare (rev_code, op0, op1,
 						     dest_mode);
 
 	    nor_code = one_cmpl_optab->handlers[(int)dest_mode].insn_code;