Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/superword.cpp
src/share/vm/opto/superword.cpp
- changeset 9740
- b290489738b8
- parent 8285
- 535618ab1c04
- child 9756
- 2be326848943
- child 9768
- eaae2ae06faf
equal
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replaced
| 9739:bf9503046dd4 | 9740:b290489738b8 |
|---|---|
| 480 assert(vw > 1, "sanity"); | 480 assert(vw > 1, "sanity"); |
| 481 Node* init_nd = pre_end->init_trip(); | 481 Node* init_nd = pre_end->init_trip(); |
| 482 if (init_nd->is_Con() && p.invar() == NULL) { | 482 if (init_nd->is_Con() && p.invar() == NULL) { |
| 483 int init = init_nd->bottom_type()->is_int()->get_con(); | 483 int init = init_nd->bottom_type()->is_int()->get_con(); |
| 484 int init_offset = init * p.scale_in_bytes() + offset; | 484 int init_offset = init * p.scale_in_bytes() + offset; |
| 485 assert(init_offset >= 0, "positive offset from object start"); | 485 if (init_offset < 0) { // negative offset from object start? |
| 486 return false; // may happen in dead loop | |
| 487 } | |
| 486 if (vw % span == 0) { | 488 if (vw % span == 0) { |
| 487 // If vm is a multiple of span, we use formula (1). | 489 // If vm is a multiple of span, we use formula (1). |
| 488 if (span > 0) { | 490 if (span > 0) { |
| 489 return (vw - (init_offset % vw)) % span == 0; | 491 return (vw - (init_offset % vw)) % span == 0; |
| 490 } else { | 492 } else { |
