Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/c1/c1_LIRGenerator.cpp
src/share/vm/c1/c1_LIRGenerator.cpp
- changeset 8735
- dcaab7b518c4
- parent 8657
- 739246e5f9f3
- child 8856
- ac27a9c85bea
- child 8882
- 279a5dd96f9b
equal
deleted
inserted
replaced
| 8734:c73c5d205d0a | 8735:dcaab7b518c4 |
|---|---|
| 1698 #endif | 1698 #endif |
| 1699 | 1699 |
| 1700 if (x->needs_null_check() && | 1700 if (x->needs_null_check() && |
| 1701 (needs_patching || | 1701 (needs_patching || |
| 1702 MacroAssembler::needs_explicit_null_check(x->offset()))) { | 1702 MacroAssembler::needs_explicit_null_check(x->offset()))) { |
| 1703 // emit an explicit null check because the offset is too large | 1703 // Emit an explicit null check because the offset is too large. |
| 1704 __ null_check(object.result(), new CodeEmitInfo(info)); | 1704 // If the class is not loaded and the object is NULL, we need to deoptimize to throw a |
| 1705 // NoClassDefFoundError in the interpreter instead of an implicit NPE from compiled code. | |
| 1706 __ null_check(object.result(), new CodeEmitInfo(info), /* deoptimize */ needs_patching); | |
| 1705 } | 1707 } |
| 1706 | 1708 |
| 1707 LIR_Address* address; | 1709 LIR_Address* address; |
| 1708 if (needs_patching) { | 1710 if (needs_patching) { |
| 1709 // we need to patch the offset in the instruction so don't allow | 1711 // we need to patch the offset in the instruction so don't allow |
| 1783 LIR_Opr obj = object.result(); | 1785 LIR_Opr obj = object.result(); |
| 1784 if (stress_deopt) { | 1786 if (stress_deopt) { |
| 1785 obj = new_register(T_OBJECT); | 1787 obj = new_register(T_OBJECT); |
| 1786 __ move(LIR_OprFact::oopConst(NULL), obj); | 1788 __ move(LIR_OprFact::oopConst(NULL), obj); |
| 1787 } | 1789 } |
| 1788 // emit an explicit null check because the offset is too large | 1790 // Emit an explicit null check because the offset is too large. |
| 1789 __ null_check(obj, new CodeEmitInfo(info)); | 1791 // If the class is not loaded and the object is NULL, we need to deoptimize to throw a |
| 1792 // NoClassDefFoundError in the interpreter instead of an implicit NPE from compiled code. | |
| 1793 __ null_check(obj, new CodeEmitInfo(info), /* deoptimize */ needs_patching); | |
| 1790 } | 1794 } |
| 1791 | 1795 |
| 1792 LIR_Opr reg = rlock_result(x, field_type); | 1796 LIR_Opr reg = rlock_result(x, field_type); |
| 1793 LIR_Address* address; | 1797 LIR_Address* address; |
| 1794 if (needs_patching) { | 1798 if (needs_patching) { |
