Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/opto/addnode.cpp
src/share/vm/opto/addnode.cpp
- changeset 9610
- f43f77de876a
- parent 4357
- ad5dd04754ee
- child 9637
- eef07cd490d4
- child 10010
- 824065fb8b18
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| 9609:28f68e5c6fb3 | 9610:f43f77de876a |
|---|---|
| 342 // to be passed a TOP or BOTTOM type, these are filtered out by | 342 // to be passed a TOP or BOTTOM type, these are filtered out by |
| 343 // pre-check. | 343 // pre-check. |
| 344 const Type *AddINode::add_ring( const Type *t0, const Type *t1 ) const { | 344 const Type *AddINode::add_ring( const Type *t0, const Type *t1 ) const { |
| 345 const TypeInt *r0 = t0->is_int(); // Handy access | 345 const TypeInt *r0 = t0->is_int(); // Handy access |
| 346 const TypeInt *r1 = t1->is_int(); | 346 const TypeInt *r1 = t1->is_int(); |
| 347 int lo = r0->_lo + r1->_lo; | 347 int lo = java_add(r0->_lo, r1->_lo); |
| 348 int hi = r0->_hi + r1->_hi; | 348 int hi = java_add(r0->_hi, r1->_hi); |
| 349 if( !(r0->is_con() && r1->is_con()) ) { | 349 if( !(r0->is_con() && r1->is_con()) ) { |
| 350 // Not both constants, compute approximate result | 350 // Not both constants, compute approximate result |
| 351 if( (r0->_lo & r1->_lo) < 0 && lo >= 0 ) { | 351 if( (r0->_lo & r1->_lo) < 0 && lo >= 0 ) { |
| 352 lo = min_jint; hi = max_jint; // Underflow on the low side | 352 lo = min_jint; hi = max_jint; // Underflow on the low side |
| 353 } | 353 } |
| 460 // to be passed a TOP or BOTTOM type, these are filtered out by | 460 // to be passed a TOP or BOTTOM type, these are filtered out by |
| 461 // pre-check. | 461 // pre-check. |
| 462 const Type *AddLNode::add_ring( const Type *t0, const Type *t1 ) const { | 462 const Type *AddLNode::add_ring( const Type *t0, const Type *t1 ) const { |
| 463 const TypeLong *r0 = t0->is_long(); // Handy access | 463 const TypeLong *r0 = t0->is_long(); // Handy access |
| 464 const TypeLong *r1 = t1->is_long(); | 464 const TypeLong *r1 = t1->is_long(); |
| 465 jlong lo = r0->_lo + r1->_lo; | 465 jlong lo = java_add(r0->_lo, r1->_lo); |
| 466 jlong hi = r0->_hi + r1->_hi; | 466 jlong hi = java_add(r0->_hi, r1->_hi); |
| 467 if( !(r0->is_con() && r1->is_con()) ) { | 467 if( !(r0->is_con() && r1->is_con()) ) { |
| 468 // Not both constants, compute approximate result | 468 // Not both constants, compute approximate result |
| 469 if( (r0->_lo & r1->_lo) < 0 && lo >= 0 ) { | 469 if( (r0->_lo & r1->_lo) < 0 && lo >= 0 ) { |
| 470 lo =min_jlong; hi = max_jlong; // Underflow on the low side | 470 lo =min_jlong; hi = max_jlong; // Underflow on the low side |
| 471 } | 471 } |
