src/share/vm/opto/loopTransform.cpp

*** 1962,1972 ****
        assert(iff->is_If(), "");
        ProjNode* dp = ((IfNode*)iff)->proj_out(1-flip);
        // Find loads off the surviving projection; remove their control edge
        for (DUIterator_Fast imax, i = dp->fast_outs(imax); i < imax; i++) {
          Node* cd = dp->fast_out(i); // Control-dependent node
!         if( cd->is_Load() ) {   // Loads can now float around in the loop
            // Allow the load to float around in the loop, or before it
            // but NOT before the pre-loop.
            _igvn.replace_input_of(cd, 0, ctrl); // ctrl, not NULL
            --i;
            --imax;
--- 1962,1972 ----
        assert(iff->is_If(), "");
        ProjNode* dp = ((IfNode*)iff)->proj_out(1-flip);
        // Find loads off the surviving projection; remove their control edge
        for (DUIterator_Fast imax, i = dp->fast_outs(imax); i < imax; i++) {
          Node* cd = dp->fast_out(i); // Control-dependent node
!         if (cd->is_Load() && cd->depends_only_on_test()) {   // Loads can now float around in the loop
            // Allow the load to float around in the loop, or before it
            // but NOT before the pre-loop.
            _igvn.replace_input_of(cd, 0, ctrl); // ctrl, not NULL
            --i;
            --imax;