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comparison src/share/vm/opto/macro.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 2aff40cb4703
children 8651f608fea4
comparison
equal deleted inserted replaced
7636:a7114d3d712e 7637:b30b3c2a0cf2
359 else 359 else
360 return alloc->in(TypeFunc::Memory); // It will produce zero value (see callers). 360 return alloc->in(TypeFunc::Memory); // It will produce zero value (see callers).
361 } 361 }
362 // Otherwise skip it (the call updated 'mem' value). 362 // Otherwise skip it (the call updated 'mem' value).
363 } else if (mem->Opcode() == Op_SCMemProj) { 363 } else if (mem->Opcode() == Op_SCMemProj) {
364 assert(mem->in(0)->is_LoadStore(), "sanity"); 364 mem = mem->in(0);
365 const TypePtr* atype = mem->in(0)->in(MemNode::Address)->bottom_type()->is_ptr(); 365 Node* adr = NULL;
366 if (mem->is_LoadStore()) {
367 adr = mem->in(MemNode::Address);
368 } else {
369 assert(mem->Opcode() == Op_EncodeISOArray, "sanity");
370 adr = mem->in(3); // Destination array
371 }
372 const TypePtr* atype = adr->bottom_type()->is_ptr();
366 int adr_idx = Compile::current()->get_alias_index(atype); 373 int adr_idx = Compile::current()->get_alias_index(atype);
367 if (adr_idx == alias_idx) { 374 if (adr_idx == alias_idx) {
368 assert(false, "Object is not scalar replaceable if a LoadStore node access its field"); 375 assert(false, "Object is not scalar replaceable if a LoadStore node access its field");
369 return NULL; 376 return NULL;
370 } 377 }
371 mem = mem->in(0)->in(MemNode::Memory); 378 mem = mem->in(MemNode::Memory);
372 } else { 379 } else {
373 return mem; 380 return mem;
374 } 381 }
375 assert(mem != orig_mem, "dead memory loop"); 382 assert(mem != orig_mem, "dead memory loop");
376 } 383 }
443 if (val == NULL) { 450 if (val == NULL) {
444 return NULL; 451 return NULL;
445 } 452 }
446 values.at_put(j, val); 453 values.at_put(j, val);
447 } else if (val->Opcode() == Op_SCMemProj) { 454 } else if (val->Opcode() == Op_SCMemProj) {
448 assert(val->in(0)->is_LoadStore(), "sanity"); 455 assert(val->in(0)->is_LoadStore() || val->in(0)->Opcode() == Op_EncodeISOArray, "sanity");
449 assert(false, "Object is not scalar replaceable if a LoadStore node access its field"); 456 assert(false, "Object is not scalar replaceable if a LoadStore node access its field");
450 return NULL; 457 return NULL;
451 } else { 458 } else {
452 #ifdef ASSERT 459 #ifdef ASSERT
453 val->dump(); 460 val->dump();