diff options
| author | kvn <none@none> | 2008-04-23 19:09:16 -0700 |
|---|---|---|
| committer | kvn <none@none> | 2008-04-23 19:09:16 -0700 |
| commit | bb6484ee053730dc6bcab567a8b17c0e5ae2829e (patch) | |
| tree | d826920ead48efae2966b80459b6fff9f39894bf /src/share/vm/opto/node.hpp | |
| parent | aac45ecc8cc694200a034d911b9f0052255514b4 (diff) | |
6625997: CastPP, CheckCastPP and Proj nodes are not dead loop safe
Summary: EA and initialization optimizations could bypass these nodes.
Reviewed-by: rasbold, never
Diffstat (limited to 'src/share/vm/opto/node.hpp')
| -rw-r--r-- | src/share/vm/opto/node.hpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/share/vm/opto/node.hpp b/src/share/vm/opto/node.hpp index e957887b3..dc44aab22 100644 --- a/src/share/vm/opto/node.hpp +++ b/src/share/vm/opto/node.hpp @@ -741,8 +741,9 @@ public: bool is_Goto() const { return (_flags & Flag_is_Goto) != 0; } // The data node which is safe to leave in dead loop during IGVN optimization. bool is_dead_loop_safe() const { - return is_Phi() || is_Proj() || - (_flags & (Flag_is_dead_loop_safe | Flag_is_Con)) != 0; + return is_Phi() || (is_Proj() && in(0) == NULL) || + ((_flags & (Flag_is_dead_loop_safe | Flag_is_Con)) != 0 && + (!is_Proj() || !in(0)->is_Allocate())); } // is_Copy() returns copied edge index (0 or 1) |