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comparison src/share/vm/opto/compile.cpp @ 2091:51bd2d261853

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7008325: CodeCache exhausted on sparc starting from hs20b04 Summary: remove clear_scratch_buffer_blob and let init_scratch_buffer_blob free and allocate a new blob if required. Reviewed-by: twisti
author kvn
date Wed, 29 Dec 2010 10:41:43 -0800
parents 2f644f85485d
children b92c45f2bc75
comparison
equal deleted inserted replaced
2090:2ddb2fab82cb 2091:51bd2d261853
442 } 442 }
443 #endif 443 #endif
444 } 444 }
445 445
446 446
447 //-----------------------init_scratch_buffer_blob------------------------------
448 // Construct a temporary BufferBlob and cache it for this compile.
447 void Compile::init_scratch_buffer_blob(int const_size) { 449 void Compile::init_scratch_buffer_blob(int const_size) {
448 if (scratch_buffer_blob() != NULL) return; 450 // If there is already a scratch buffer blob allocated and the
449 451 // constant section is big enough, use it. Otherwise free the
450 // Construct a temporary CodeBuffer to have it construct a BufferBlob 452 // current and allocate a new one.
451 // Cache this BufferBlob for this compile. 453 BufferBlob* blob = scratch_buffer_blob();
452 ResourceMark rm; 454 if ((blob != NULL) && (const_size <= _scratch_const_size)) {
453 _scratch_const_size = const_size; 455 // Use the current blob.
454 int size = (MAX_inst_size + MAX_stubs_size + _scratch_const_size); 456 } else {
455 BufferBlob* blob = BufferBlob::create("Compile::scratch_buffer", size); 457 if (blob != NULL) {
456 // Record the buffer blob for next time. 458 BufferBlob::free(blob);
457 set_scratch_buffer_blob(blob); 459 }
458 // Have we run out of code space? 460
459 if (scratch_buffer_blob() == NULL) { 461 ResourceMark rm;
460 // Let CompilerBroker disable further compilations. 462 _scratch_const_size = const_size;
461 record_failure("Not enough space for scratch buffer in CodeCache"); 463 int size = (MAX_inst_size + MAX_stubs_size + _scratch_const_size);
462 return; 464 blob = BufferBlob::create("Compile::scratch_buffer", size);
465 // Record the buffer blob for next time.
466 set_scratch_buffer_blob(blob);
467 // Have we run out of code space?
468 if (scratch_buffer_blob() == NULL) {
469 // Let CompilerBroker disable further compilations.
470 record_failure("Not enough space for scratch buffer in CodeCache");
471 return;
472 }
463 } 473 }
464 474
465 // Initialize the relocation buffers 475 // Initialize the relocation buffers
466 relocInfo* locs_buf = (relocInfo*) blob->content_end() - MAX_locs_size; 476 relocInfo* locs_buf = (relocInfo*) blob->content_end() - MAX_locs_size;
467 set_scratch_locs_memory(locs_buf); 477 set_scratch_locs_memory(locs_buf);
468 }
469
470
471 void Compile::clear_scratch_buffer_blob() {
472 assert(scratch_buffer_blob(), "no BufferBlob set");
473 set_scratch_buffer_blob(NULL);
474 set_scratch_locs_memory(NULL);
475 } 478 }
476 479
477 480
478 //-----------------------scratch_emit_size------------------------------------- 481 //-----------------------scratch_emit_size-------------------------------------
479 // Helper function that computes size by emitting code 482 // Helper function that computes size by emitting code