Mercurial > hg > truffle
diff src/share/vm/opto/memnode.hpp @ 8116:6931f425c517
8007294: ReduceFieldZeroing doesn't check for dependent load and can lead to incorrect execution
Summary: InitializeNode::can_capture_store() must check that the captured store doesn't overwrite a memory location that is loaded before the store.
Reviewed-by: kvn
| author | roland |
|---|---|
| date | Mon, 25 Feb 2013 14:13:04 +0100 |
| parents | b30b3c2a0cf2 |
| children | 6f3fd5150b67 |
line wrap: on
line diff
--- a/src/share/vm/opto/memnode.hpp Fri Feb 22 10:12:00 2013 -0800 +++ b/src/share/vm/opto/memnode.hpp Mon Feb 25 14:13:04 2013 +0100 @@ -1072,11 +1072,11 @@ // See if this store can be captured; return offset where it initializes. // Return 0 if the store cannot be moved (any sort of problem). - intptr_t can_capture_store(StoreNode* st, PhaseTransform* phase); + intptr_t can_capture_store(StoreNode* st, PhaseTransform* phase, bool can_reshape); // Capture another store; reformat it to write my internal raw memory. // Return the captured copy, else NULL if there is some sort of problem. - Node* capture_store(StoreNode* st, intptr_t start, PhaseTransform* phase); + Node* capture_store(StoreNode* st, intptr_t start, PhaseTransform* phase, bool can_reshape); // Find captured store which corresponds to the range [start..start+size). // Return my own memory projection (meaning the initial zero bits)