lcm.c (optimize_mode_switching): Check whether an insn is a NOTE before taking…

lcm.c (optimize_mode_switching): Check whether an insn is a NOTE before taking its NOTE_LINE_NUMBER.

* lcm.c (optimize_mode_switching): Check whether an insn is a NOTE
before taking its NOTE_LINE_NUMBER.

From-SVN: r38140

gcc/ChangeLog

+2000-12-08  Alexandre Oliva  <aoliva@redhat.com>
+
+	* lcm.c (optimize_mode_switching): Check whether an insn is a NOTE
+	before taking its NOTE_LINE_NUMBER.
+
 2000-12-08  Nick Clifton  <nickc@redhat.com>
 
 	* config/arm/arm.md (load_indirect_jump): Add pool ranges.

gcc/lcm.c

@@ -1269,7 +1269,9 @@ optimize_mode_switching (file)
 		  mode_set = gen_sequence ();
 		  end_sequence ();
 
-		  if (NOTE_LINE_NUMBER (ptr->insn_ptr) == NOTE_INSN_BASIC_BLOCK)
+		  if (GET_CODE (ptr->insn_ptr) == NOTE
+		      && (NOTE_LINE_NUMBER (ptr->insn_ptr)
+			  == NOTE_INSN_BASIC_BLOCK))
 		    emit_block_insn_after (mode_set, ptr->insn_ptr,
     		                           BASIC_BLOCK (ptr->bbnum));
 		  else