Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- a/src/share/vm/opto/loopnode.cpp	Thu Mar 06 10:30:17 2008 -0800
     1.2 +++ b/src/share/vm/opto/loopnode.cpp	Thu Mar 06 10:53:33 2008 -0800
     1.3 @@ -1561,7 +1561,7 @@
     1.4        // on just their loop-phi's for this pass of loop opts
     1.5        if( SplitIfBlocks && do_split_ifs ) {
     1.6          if (lpt->policy_range_check(this)) {
     1.7 -          lpt->_rce_candidate = true;
     1.8 +          lpt->_rce_candidate = 1; // = true
     1.9          }
    1.10        }
    1.11      }
    1.12 @@ -2145,7 +2145,7 @@
    1.13      // as well?  If so, then I found another entry into the loop.
    1.14      while( is_postvisited(l->_head) ) {
    1.15        // found irreducible
    1.16 -      l->_irreducible = true;
    1.17 +      l->_irreducible = 1; // = true
    1.18        l = l->_parent;
    1.19        _has_irreducible_loops = true;
    1.20        // Check for bad CFG here to prevent crash, and bailout of compile
    1.21 @@ -2199,6 +2199,12 @@
    1.22                (iff->as_If()->_prob >= 0.01) )
    1.23              innermost->_has_call = 1;
    1.24          }
    1.25 +      } else if( n->is_Allocate() && n->as_Allocate()->_is_scalar_replaceable ) {
    1.26 +        // Disable loop optimizations if the loop has a scalar replaceable
    1.27 +        // allocation. This disabling may cause a potential performance lost
    1.28 +        // if the allocation is not eliminated for some reason.
    1.29 +        innermost->_allow_optimizations = false;
    1.30 +        innermost->_has_call = 1; // = true
    1.31        }
    1.32      }
    1.33    }