Mercurial > hg > graal-jvmci-8
comparison src/share/vm/opto/ifnode.cpp @ 1153:bea7a22a6f79
6915110: IfNode::up_one_dom moves beyond RootNode bug in src/share/vm/opto/ifnode.cpp
Summary: Check RootNode before check Loop in IfNode::up_one_dom().
Reviewed-by: never
Contributed-by: kevin.brown@sun.com
| author | kvn |
|---|---|
| date | Fri, 08 Jan 2010 09:42:31 -0800 |
| parents | e715b51789d8 |
| children | c18cbe5936b8 |
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| 1152:cd37471eaecc | 1153:bea7a22a6f79 |
|---|---|
| 527 return dom; | 527 return dom; |
| 528 | 528 |
| 529 // Use linear_only if we are still parsing, since we cannot | 529 // Use linear_only if we are still parsing, since we cannot |
| 530 // trust the regions to be fully filled in. | 530 // trust the regions to be fully filled in. |
| 531 if (linear_only) | 531 if (linear_only) |
| 532 return NULL; | |
| 533 | |
| 534 if( dom->is_Root() ) | |
| 532 return NULL; | 535 return NULL; |
| 533 | 536 |
| 534 // Else hit a Region. Check for a loop header | 537 // Else hit a Region. Check for a loop header |
| 535 if( dom->is_Loop() ) | 538 if( dom->is_Loop() ) |
| 536 return dom->in(1); // Skip up thru loops | 539 return dom->in(1); // Skip up thru loops |