Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
src/cpu/x86/vm/c1_LIRAssembler_x86.cpp
- changeset 2355
- ec8c74742417
- parent 2349
- 5ddfcf4b079e
- child 2412
- 037c727f35fb
equal
deleted
inserted
replaced
| 2354:5fe0781a8560 | 2355:ec8c74742417 |
|---|---|
| 1991 assert(newval != addr, "new value and addr must be in different registers"); | 1991 assert(newval != addr, "new value and addr must be in different registers"); |
| 1992 | 1992 |
| 1993 if ( op->code() == lir_cas_obj) { | 1993 if ( op->code() == lir_cas_obj) { |
| 1994 #ifdef _LP64 | 1994 #ifdef _LP64 |
| 1995 if (UseCompressedOops) { | 1995 if (UseCompressedOops) { |
| 1996 __ mov(rscratch1, cmpval); | |
| 1997 __ encode_heap_oop(cmpval); | 1996 __ encode_heap_oop(cmpval); |
| 1998 __ mov(rscratch2, newval); | 1997 __ mov(rscratch1, newval); |
| 1999 __ encode_heap_oop(rscratch2); | 1998 __ encode_heap_oop(rscratch1); |
| 2000 if (os::is_MP()) { | 1999 if (os::is_MP()) { |
| 2001 __ lock(); | 2000 __ lock(); |
| 2002 } | 2001 } |
| 2003 __ cmpxchgl(rscratch2, Address(addr, 0)); | 2002 // cmpval (rax) is implicitly used by this instruction |
| 2004 __ mov(cmpval, rscratch1); | 2003 __ cmpxchgl(rscratch1, Address(addr, 0)); |
| 2005 } else | 2004 } else |
| 2006 #endif | 2005 #endif |
| 2007 { | 2006 { |
| 2008 if (os::is_MP()) { | 2007 if (os::is_MP()) { |
| 2009 __ lock(); | 2008 __ lock(); |
