* jump.c (jump_optimize): Revert accidental patch.

From-SVN: r22929

gcc/ChangeLog

@@ -5,6 +5,8 @@ Thu Oct  8 17:00:18 1998  Richard Henderson  <rth@cygnus.com>
 
 Thu Oct  8 17:15:04 1998  Jeffrey A Law  (law@cygnus.com)
 
+	* jump.c (jump_optimize): Revert accidental patch.
+
 	* Makefile.in (cpplib.o): Use unlibsubdir.
 
 Thu Oct  8 12:50:47 1998  Jim Wilson  <wilson@cygnus.com>

gcc/jump.c

@@ -480,9 +480,12 @@ jump_optimize (f, cross_jump, noop_moves, after_regscan)
 				remove_death (dreg, trial);
 				break;
 			      }
-
-			/* Deleting insn could lose a death-note for SREG.  */
-			if ((trial = find_regno_note (insn, REG_DEAD, sreg)))
+#ifdef PRESERVE_DEATH_INFO_REGNO_P
+			/* Deleting insn could lose a death-note for SREG
+			   so don't do it if final needs accurate
+			   death-notes.  */
+			if (PRESERVE_DEATH_INFO_REGNO_P (sreg)
+			    && (trial = find_regno_note (insn, REG_DEAD, sreg)))
 			  {
 			    /* Change this into a USE so that we won't emit
 			       code for it, but still can keep the note.  */
@@ -494,6 +497,7 @@ jump_optimize (f, cross_jump, noop_moves, after_regscan)
 			    XEXP (trial, 1) = NULL_RTX;
 			  }
 			else
+#endif
 			  delete_insn (insn);
 		      }
 		  }