src/share/vm/opto/loopTransform.cpp

rev 7899 : 8073184: Compile of java.lang.Integer::getChars fails with LoopLimitCheck = false after 8054478
Summary: CastII that guards counted loops confuses range check elimination with LoopLimitCheck off
Reviewed-by:

*** 2030,2040 ****
    if (!LoopLimitCheck && stride_con != 1 && stride_con != -1) { // Cutout for common case
      // "Standard" round-up logic:  ([main_limit-init+(y-1)]/y)*y+init
      // Hopefully, compiler will optimize for powers of 2.
      Node *ctrl = get_ctrl(main_limit);
      Node *stride = cl->stride();
!     Node *init = cl->init_trip();
      Node *span = new SubINode(main_limit,init);
      register_new_node(span,ctrl);
      Node *rndup = _igvn.intcon(stride_con + ((stride_con>0)?-1:1));
      Node *add = new AddINode(span,rndup);
      register_new_node(add,ctrl);
--- 2030,2040 ----
    if (!LoopLimitCheck && stride_con != 1 && stride_con != -1) { // Cutout for common case
      // "Standard" round-up logic:  ([main_limit-init+(y-1)]/y)*y+init
      // Hopefully, compiler will optimize for powers of 2.
      Node *ctrl = get_ctrl(main_limit);
      Node *stride = cl->stride();
!     Node *init = cl->init_trip()->uncast();
      Node *span = new SubINode(main_limit,init);
      register_new_node(span,ctrl);
      Node *rndup = _igvn.intcon(stride_con + ((stride_con>0)?-1:1));
      Node *add = new AddINode(span,rndup);
      register_new_node(add,ctrl);