Try to make the peephole optimizer smarter by maintaining

[fw/sdcc] / src / mcs51 / gen.c

diff --git a/src/mcs51/gen.c b/src/mcs51/gen.c
index a9d6e638ace43bbf1b93ea630e415d4bcdeef612..23a8522d6b7186b4d8de609aea2ddda66f9ab1e5 100644 (file)
--- a/src/mcs51/gen.c
+++ b/src/mcs51/gen.c
@@ -73,6 +73,7 @@ static struct
     short debugLine;
     short nRegsSaved;
     set *sendSet;
+    iCode *current_iCode;
   }
 _G;
 
@@ -132,7 +133,6 @@ emitcode (char *inst, const char *fmt,...)
 
   while (isspace (*lbp))
     lbp++;
-//  printf ("%s\n", lb); // EEP - debugging
   
   if (lbp && *lbp)
     lineCurr = (lineCurr ?
@@ -140,6 +140,8 @@ emitcode (char *inst, const char *fmt,...)
                (lineHead = newLineNode (lb)));
   lineCurr->isInline = _G.inLine;
   lineCurr->isDebug = _G.debugLine;
+  lineCurr->ic = _G.current_iCode;
+  lineCurr->isComment = (*lbp==';');
   va_end (ap);
 }
 
@@ -8949,7 +8951,8 @@ gen51Code (iCode * lic)
 
   for (ic = lic; ic; ic = ic->next)
     {
-
+      _G.current_iCode = ic;
+      
       if (ic->lineno && cln != ic->lineno)
        {
          if (options.debug)
@@ -9177,6 +9180,7 @@ gen51Code (iCode * lic)
        }
     }
 
+  _G.current_iCode = NULL;
 
   /* now we are ready to call the
      peep hole optimizer */