Mercurial > hg > graal-jvmci-8
comparison src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp @ 6795:7eca5de9e0b6
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
Summary: use shorter instruction sequences for atomic add and atomic exchange when possible.
Reviewed-by: kvn, jrose
| author | roland |
|---|---|
| date | Thu, 20 Sep 2012 16:49:17 +0200 |
| parents | 8a02ca5e5576 |
| children | d8ce2825b193 8e47bac5643a |
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| 6794:8ae8f9dd7099 | 6795:7eca5de9e0b6 |
|---|---|
| 1313 } | 1313 } |
| 1314 } | 1314 } |
| 1315 | 1315 |
| 1316 Address LIR_Assembler::as_Address(LIR_Address* addr) { | 1316 Address LIR_Assembler::as_Address(LIR_Address* addr) { |
| 1317 Register reg = addr->base()->as_register(); | 1317 Register reg = addr->base()->as_register(); |
| 1318 return Address(reg, addr->disp()); | 1318 LIR_Opr index = addr->index(); |
| 1319 if (index->is_illegal()) { | |
| 1320 return Address(reg, addr->disp()); | |
| 1321 } else { | |
| 1322 assert (addr->disp() == 0, "unsupported address mode"); | |
| 1323 return Address(reg, index->as_pointer_register()); | |
| 1324 } | |
| 1319 } | 1325 } |
| 1320 | 1326 |
| 1321 | 1327 |
| 1322 void LIR_Assembler::stack2stack(LIR_Opr src, LIR_Opr dest, BasicType type) { | 1328 void LIR_Assembler::stack2stack(LIR_Opr src, LIR_Opr dest, BasicType type) { |
| 1323 switch (type) { | 1329 switch (type) { |
| 3436 } | 3442 } |
| 3437 } | 3443 } |
| 3438 } | 3444 } |
| 3439 } | 3445 } |
| 3440 | 3446 |
| 3441 | 3447 void LIR_Assembler::atomic_op(LIR_Code code, LIR_Opr src, LIR_Opr data, LIR_Opr dest, LIR_Opr tmp) { |
| 3442 | 3448 LIR_Address* addr = src->as_address_ptr(); |
| 3449 | |
| 3450 assert(data == dest, "swap uses only 2 operands"); | |
| 3451 assert (code == lir_xchg, "no xadd on sparc"); | |
| 3452 | |
| 3453 if (data->type() == T_INT) { | |
| 3454 __ swap(as_Address(addr), data->as_register()); | |
| 3455 } else if (data->is_oop()) { | |
| 3456 Register obj = data->as_register(); | |
| 3457 Register narrow = tmp->as_register(); | |
| 3458 #ifdef _LP64 | |
| 3459 assert(UseCompressedOops, "swap is 32bit only"); | |
| 3460 __ encode_heap_oop(obj, narrow); | |
| 3461 __ swap(as_Address(addr), narrow); | |
| 3462 __ decode_heap_oop(narrow, obj); | |
| 3463 #else | |
| 3464 __ swap(as_Address(addr), obj); | |
| 3465 #endif | |
| 3466 } else { | |
| 3467 ShouldNotReachHere(); | |
| 3468 } | |
| 3469 } | |
| 3443 | 3470 |
| 3444 #undef __ | 3471 #undef __ |