regmove.c (regmove_optimize): If we end up moving the original insn due to lifetime overlaps...

	* regmove.c (regmove_optimize): If we end up moving the
	original insn due to lifetime overlaps, make sure to move
	REG_NOTES too.
Fixes x86 (and maybe h8) failure.

From-SVN: r15435

gcc/ChangeLog

+Sun Sep 14 11:11:05 1997  Jeffrey A Law  (law@cygnus.com)
+
+	* regmove.c (regmove_optimize): If we end up moving the
+	original insn due to lifetime overlaps, make sure to move
+	REG_NOTES too.
+
 Sat Sep 13 15:51:11 1997  Manfred Hollstein  <manfred@s-direktnet.de>
 
 	* Makefile.in (INSTALL_{PROGRAM,DATA}): Use value found by configure.

gcc/regmove.c

@@ -515,6 +515,8 @@ regmove_optimize (f, nregs, regmove_dump_file)
 			      else
 #endif
 				{
+				  rtx notes = REG_NOTES (insn);
+
 				  emit_insn_after_with_line_notes
 				    (pat, PREV_INSN (p), insn);
 				  PUT_CODE (insn, NOTE);
@@ -525,6 +527,8 @@ regmove_optimize (f, nregs, regmove_dump_file)
 				     for the new insn.  */
 				  for (insn = p; PATTERN (insn) != pat; )
 				    insn = PREV_INSN (insn);
+
+				  REG_NOTES (insn) = notes;
 				}
 			    }
 			  /* Sometimes we'd generate src = const; src += n;