src/share/vm/opto/graphKit.cpp

rev 9351 : 8142386: Octane crashes with assert(is_Load())
Summary: Unsafe access to an array is wrongly marked as mismatched
Reviewed-by:

*** 1466,1486 ****
    const TypePtr* adr_type = NULL; // debug-mode-only argument
    debug_only(adr_type = C->get_adr_type(adr_idx));
    Node* mem = memory(adr_idx);
    Node* ld;
    if (require_atomic_access && bt == T_LONG) {
!     ld = LoadLNode::make_atomic(ctl, mem, adr, adr_type, t, mo, control_dependency);
    } else if (require_atomic_access && bt == T_DOUBLE) {
!     ld = LoadDNode::make_atomic(ctl, mem, adr, adr_type, t, mo, control_dependency);
    } else {
!     ld = LoadNode::make(_gvn, ctl, mem, adr, adr_type, t, bt, mo, control_dependency);
!   }
!   if (unaligned) {
!     ld->as_Load()->set_unaligned_access();
!   }
!   if (mismatched) {
!     ld->as_Load()->set_mismatched_access();
    }
    ld = _gvn.transform(ld);
    if ((bt == T_OBJECT) && C->do_escape_analysis() || C->eliminate_boxing()) {
      // Improve graph before escape analysis and boxing elimination.
      record_for_igvn(ld);
--- 1466,1480 ----
    const TypePtr* adr_type = NULL; // debug-mode-only argument
    debug_only(adr_type = C->get_adr_type(adr_idx));
    Node* mem = memory(adr_idx);
    Node* ld;
    if (require_atomic_access && bt == T_LONG) {
!     ld = LoadLNode::make_atomic(ctl, mem, adr, adr_type, t, mo, control_dependency, unaligned, mismatched);
    } else if (require_atomic_access && bt == T_DOUBLE) {
!     ld = LoadDNode::make_atomic(ctl, mem, adr, adr_type, t, mo, control_dependency, unaligned, mismatched);
    } else {
!     ld = LoadNode::make(_gvn, ctl, mem, adr, adr_type, t, bt, mo, control_dependency, unaligned, mismatched);
    }
    ld = _gvn.transform(ld);
    if ((bt == T_OBJECT) && C->do_escape_analysis() || C->eliminate_boxing()) {
      // Improve graph before escape analysis and boxing elimination.
      record_for_igvn(ld);