* config/c4x/c4x.c (fp_zero_operand): Check for CONST_DOUBLE.

From-SVN: r31910

gcc/ChangeLog

 2000-02-11  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
+	
+	* config/c4x/c4x.c (fp_zero_operand): Check for CONST_DOUBLE.
+
+2000-02-11  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
 
 	* config/c4x/c4x.h (ASM_GLOBALIZE_LABEL): Use c4x_global_label.
 	(ASM_OUTPUT_EXTERNAL): Use c4x_external_ref.
@@ -6,9 +10,9 @@
 	(ASM_FILE_END): Use c4x_file_end.
 	* config/c4x/c4x.c (c4x_global_label): New function.
  	(c4x_external_ref, c4x_file_end): Likewise.
+
 	* config/c4x/c4x-protos.h (c4x_global_label): Add prototype.
  	(c4x_external_ref, c4x_end_file): Likewise.
-	
 
 2000-02-10  Zack Weinberg  <zack@wolery.cumb.org>
 

gcc/config/c4x/c4x.c

@@ -2779,6 +2779,8 @@ fp_zero_operand (op, mode)
 {
   REAL_VALUE_TYPE r;
 
+  if (GET_CODE (op) != CONST_DOUBLE)
+    return 0;
   REAL_VALUE_FROM_CONST_DOUBLE (r, op);
   return REAL_VALUES_EQUAL (r, dconst0);
 }