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comparison src/share/vm/opto/library_call.cpp @ 7637:b30b3c2a0cf2

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6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 Summary: Use SSE4.2 and AVX2 instructions for encodeArray intrinsic. Reviewed-by: roland
author kvn
date Tue, 22 Jan 2013 15:34:16 -0800
parents 6d1f5516534e
children 8b3da8d14c93
comparison
equal deleted inserted replaced
7636:a7114d3d712e 7637:b30b3c2a0cf2
288 bool inline_reference_get(); 288 bool inline_reference_get();
289 bool inline_aescrypt_Block(vmIntrinsics::ID id); 289 bool inline_aescrypt_Block(vmIntrinsics::ID id);
290 bool inline_cipherBlockChaining_AESCrypt(vmIntrinsics::ID id); 290 bool inline_cipherBlockChaining_AESCrypt(vmIntrinsics::ID id);
291 Node* inline_cipherBlockChaining_AESCrypt_predicate(bool decrypting); 291 Node* inline_cipherBlockChaining_AESCrypt_predicate(bool decrypting);
292 Node* get_key_start_from_aescrypt_object(Node* aescrypt_object); 292 Node* get_key_start_from_aescrypt_object(Node* aescrypt_object);
293 bool inline_encodeISOArray();
293 }; 294 };
294 295
295 296
296 //---------------------------make_vm_intrinsic---------------------------- 297 //---------------------------make_vm_intrinsic----------------------------
297 CallGenerator* Compile::make_vm_intrinsic(ciMethod* m, bool is_virtual) { 298 CallGenerator* Compile::make_vm_intrinsic(ciMethod* m, bool is_virtual) {
379 case vmIntrinsics::_copyOfRange: 380 case vmIntrinsics::_copyOfRange:
380 if (!InlineObjectCopy) return NULL; 381 if (!InlineObjectCopy) return NULL;
381 // These also use the arraycopy intrinsic mechanism: 382 // These also use the arraycopy intrinsic mechanism:
382 if (!InlineArrayCopy) return NULL; 383 if (!InlineArrayCopy) return NULL;
383 break; 384 break;
385 case vmIntrinsics::_encodeISOArray:
386 if (!SpecialEncodeISOArray) return NULL;
387 if (!Matcher::match_rule_supported(Op_EncodeISOArray)) return NULL;
388 break;
384 case vmIntrinsics::_checkIndex: 389 case vmIntrinsics::_checkIndex:
385 // We do not intrinsify this. The optimizer does fine with it. 390 // We do not intrinsify this. The optimizer does fine with it.
386 return NULL; 391 return NULL;
387 392
388 case vmIntrinsics::_getCallerClass: 393 case vmIntrinsics::_getCallerClass:
796 case vmIntrinsics::_aescrypt_decryptBlock: return inline_aescrypt_Block(intrinsic_id()); 801 case vmIntrinsics::_aescrypt_decryptBlock: return inline_aescrypt_Block(intrinsic_id());
797 802
798 case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt: 803 case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt:
799 case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt: 804 case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt:
800 return inline_cipherBlockChaining_AESCrypt(intrinsic_id()); 805 return inline_cipherBlockChaining_AESCrypt(intrinsic_id());
806
807 case vmIntrinsics::_encodeISOArray:
808 return inline_encodeISOArray();
801 809
802 default: 810 default:
803 // If you get here, it may be that someone has added a new intrinsic 811 // If you get here, it may be that someone has added a new intrinsic
804 // to the list in vmSymbols.hpp without implementing it here. 812 // to the list in vmSymbols.hpp without implementing it here.
805 #ifndef PRODUCT 813 #ifndef PRODUCT
5366 OptoRuntime::fast_arraycopy_Type(), 5374 OptoRuntime::fast_arraycopy_Type(),
5367 copyfunc_addr, copyfunc_name, adr_type, 5375 copyfunc_addr, copyfunc_name, adr_type,
5368 src_start, dest_start, copy_length XTOP); 5376 src_start, dest_start, copy_length XTOP);
5369 } 5377 }
5370 5378
5379 //-------------inline_encodeISOArray-----------------------------------
5380 // encode char[] to byte[] in ISO_8859_1
5381 bool LibraryCallKit::inline_encodeISOArray() {
5382 assert(callee()->signature()->size() == 5, "encodeISOArray has 5 parameters");
5383 // no receiver since it is static method
5384 Node *src = argument(0);
5385 Node *src_offset = argument(1);
5386 Node *dst = argument(2);
5387 Node *dst_offset = argument(3);
5388 Node *length = argument(4);
5389
5390 const Type* src_type = src->Value(&_gvn);
5391 const Type* dst_type = dst->Value(&_gvn);
5392 const TypeAryPtr* top_src = src_type->isa_aryptr();
5393 const TypeAryPtr* top_dest = dst_type->isa_aryptr();
5394 if (top_src == NULL || top_src->klass() == NULL ||
5395 top_dest == NULL || top_dest->klass() == NULL) {
5396 // failed array check
5397 return false;
5398 }
5399
5400 // Figure out the size and type of the elements we will be copying.
5401 BasicType src_elem = src_type->isa_aryptr()->klass()->as_array_klass()->element_type()->basic_type();
5402 BasicType dst_elem = dst_type->isa_aryptr()->klass()->as_array_klass()->element_type()->basic_type();
5403 if (src_elem != T_CHAR || dst_elem != T_BYTE) {
5404 return false;
5405 }
5406 Node* src_start = array_element_address(src, src_offset, src_elem);
5407 Node* dst_start = array_element_address(dst, dst_offset, dst_elem);
5408 // 'src_start' points to src array + scaled offset
5409 // 'dst_start' points to dst array + scaled offset
5410
5411 const TypeAryPtr* mtype = TypeAryPtr::BYTES;
5412 Node* enc = new (C) EncodeISOArrayNode(control(), memory(mtype), src_start, dst_start, length);
5413 enc = _gvn.transform(enc);
5414 Node* res_mem = _gvn.transform(new (C) SCMemProjNode(enc));
5415 set_memory(res_mem, mtype);
5416 set_result(enc);
5417 return true;
5418 }
5419
5371 //----------------------------inline_reference_get---------------------------- 5420 //----------------------------inline_reference_get----------------------------
5372 // public T java.lang.ref.Reference.get(); 5421 // public T java.lang.ref.Reference.get();
5373 bool LibraryCallKit::inline_reference_get() { 5422 bool LibraryCallKit::inline_reference_get() {
5374 const int referent_offset = java_lang_ref_Reference::referent_offset; 5423 const int referent_offset = java_lang_ref_Reference::referent_offset;
5375 guarantee(referent_offset > 0, "should have already been set"); 5424 guarantee(referent_offset > 0, "should have already been set");