* src/SDCCast.c (processParms): fixed bug #920866; decorateType() can return an optim...

[fw/sdcc] / src / SDCCopt.c

diff --git a/src/SDCCopt.c b/src/SDCCopt.c
index 05eab6f518d451b39e92f169410e71a509474135..8ae80be05507bd2c481aa4d08c117b8dbaff05db 100644 (file)
--- a/src/SDCCopt.c
+++ b/src/SDCCopt.c
@@ -878,7 +878,10 @@ killDeadCode (eBBlock ** ebbs, int count)
                  bool volRight = IS_SYMOP (IC_RIGHT (ic)) 
                                  && isOperandVolatile (IC_RIGHT (ic), FALSE);
 
-                 
+                 /* a dead address-of operation should die, even if volatile */
+                 if (ic->op == ADDRESS_OF)
+                   volLeft = FALSE;
+
                  if (ic->next && ic->seqPoint == ic->next->seqPoint
                      && (ic->next->op == '+' || ic->next->op == '-'))
                    {