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7153771: array bound check elimination for c1

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When possible optimize out array bound checks, inserting predicates when needed.

Reviewed-by: never, kvn, twisti
This commit is contained in:
Thomas Wuerthinger 2013-03-21 09:27:54 +01:00 • committed by Roland Westrelin
parent 2f4ecb86a2
commit 06ef4cddf7
40 changed files with 2861 additions and 153 deletions
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19
hotspot/src/cpu/sparc/vm/c1_Runtime1_sparc.cpp
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@ -987,6 +987,25 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
break;
#endif // INCLUDE_ALL_GCS
case predicate_failed_trap_id:
{
__ set_info("predicate_failed_trap", dont_gc_arguments);
OopMap* oop_map = save_live_registers(sasm);
int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, predicate_failed_trap));
oop_maps = new OopMapSet();
oop_maps->add_gc_map(call_offset, oop_map);
DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob();
assert(deopt_blob != NULL, "deoptimization blob must have been created");
restore_live_registers(sasm);
__ restore();
__ br(Assembler::always, false, Assembler::pt, deopt_blob->unpack_with_reexecution(), relocInfo::runtime_call_type);
__ delayed()->nop();
}
break;
default:
{ __ set_info("unimplemented entry", dont_gc_arguments);
__ save_frame(0);