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Issue 7210057: ARM: Reduce amount of code generated for LoadIC_Megamorphic.... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 5 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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392 Label number, non_number, non_string, boolean, probe, miss; 392 Label number, non_number, non_string, boolean, probe, miss;
393 393
394 // Probe the stub cache. 394 // Probe the stub cache.
395 Code::Flags flags = Code::ComputeFlags(kind, 395 Code::Flags flags = Code::ComputeFlags(kind,
396 NOT_IN_LOOP, 396 NOT_IN_LOOP,
397 MONOMORPHIC, 397 MONOMORPHIC,
398 extra_ic_state, 398 extra_ic_state,
399 NORMAL, 399 NORMAL,
400 argc); 400 argc);
401 Isolate::Current()->stub_cache()->GenerateProbe( 401 Isolate::Current()->stub_cache()->GenerateProbe(
402 masm, flags, r1, r2, r3, r4, r5); 402 masm, flags, r1, r2, r3, r4, r5, r6);
403 403
404 // If the stub cache probing failed, the receiver might be a value. 404 // If the stub cache probing failed, the receiver might be a value.
405 // For value objects, we use the map of the prototype objects for 405 // For value objects, we use the map of the prototype objects for
406 // the corresponding JSValue for the cache and that is what we need 406 // the corresponding JSValue for the cache and that is what we need
407 // to probe. 407 // to probe.
408 // 408 //
409 // Check for number. 409 // Check for number.
410 __ JumpIfSmi(r1, &number); 410 __ JumpIfSmi(r1, &number);
411 __ CompareObjectType(r1, r3, r3, HEAP_NUMBER_TYPE); 411 __ CompareObjectType(r1, r3, r3, HEAP_NUMBER_TYPE);
412 __ b(ne, &non_number); 412 __ b(ne, &non_number);
(...skipping 18 matching lines...) Expand all
431 __ LoadRoot(ip, Heap::kFalseValueRootIndex); 431 __ LoadRoot(ip, Heap::kFalseValueRootIndex);
432 __ cmp(r1, ip); 432 __ cmp(r1, ip);
433 __ b(ne, &miss); 433 __ b(ne, &miss);
434 __ bind(&boolean); 434 __ bind(&boolean);
435 StubCompiler::GenerateLoadGlobalFunctionPrototype( 435 StubCompiler::GenerateLoadGlobalFunctionPrototype(
436 masm, Context::BOOLEAN_FUNCTION_INDEX, r1); 436 masm, Context::BOOLEAN_FUNCTION_INDEX, r1);
437 437
438 // Probe the stub cache for the value object. 438 // Probe the stub cache for the value object.
439 __ bind(&probe); 439 __ bind(&probe);
440 Isolate::Current()->stub_cache()->GenerateProbe( 440 Isolate::Current()->stub_cache()->GenerateProbe(
441 masm, flags, r1, r2, r3, r4, r5); 441 masm, flags, r1, r2, r3, r4, r5, r6);
442 442
443 __ bind(&miss); 443 __ bind(&miss);
444 } 444 }
445 445
446 446
447 static void GenerateFunctionTailCall(MacroAssembler* masm, 447 static void GenerateFunctionTailCall(MacroAssembler* masm,
448 int argc, 448 int argc,
449 Label* miss, 449 Label* miss,
450 Register scratch) { 450 Register scratch) {
451 // r1: function 451 // r1: function
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731 // -- lr : return address 731 // -- lr : return address
732 // -- r0 : receiver 732 // -- r0 : receiver
733 // -- sp[0] : receiver 733 // -- sp[0] : receiver
734 // ----------------------------------- 734 // -----------------------------------
735 735
736 // Probe the stub cache. 736 // Probe the stub cache.
737 Code::Flags flags = Code::ComputeFlags(Code::LOAD_IC, 737 Code::Flags flags = Code::ComputeFlags(Code::LOAD_IC,
738 NOT_IN_LOOP, 738 NOT_IN_LOOP,
739 MONOMORPHIC); 739 MONOMORPHIC);
740 Isolate::Current()->stub_cache()->GenerateProbe( 740 Isolate::Current()->stub_cache()->GenerateProbe(
741 masm, flags, r0, r2, r3, r4, r5); 741 masm, flags, r0, r2, r3, r4, r5, r6);
742 742
743 // Cache miss: Jump to runtime. 743 // Cache miss: Jump to runtime.
744 GenerateMiss(masm); 744 GenerateMiss(masm);
745 } 745 }
746 746
747 747
748 void LoadIC::GenerateNormal(MacroAssembler* masm) { 748 void LoadIC::GenerateNormal(MacroAssembler* masm) {
749 // ----------- S t a t e ------------- 749 // ----------- S t a t e -------------
750 // -- r2 : name 750 // -- r2 : name
751 // -- lr : return address 751 // -- lr : return address
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1379 // -- lr : return address 1379 // -- lr : return address
1380 // ----------------------------------- 1380 // -----------------------------------
1381 1381
1382 // Get the receiver from the stack and probe the stub cache. 1382 // Get the receiver from the stack and probe the stub cache.
1383 Code::Flags flags = Code::ComputeFlags(Code::STORE_IC, 1383 Code::Flags flags = Code::ComputeFlags(Code::STORE_IC,
1384 NOT_IN_LOOP, 1384 NOT_IN_LOOP,
1385 MONOMORPHIC, 1385 MONOMORPHIC,
1386 strict_mode); 1386 strict_mode);
1387 1387
1388 Isolate::Current()->stub_cache()->GenerateProbe( 1388 Isolate::Current()->stub_cache()->GenerateProbe(
1389 masm, flags, r1, r2, r3, r4, r5); 1389 masm, flags, r1, r2, r3, r4, r5, r6);
1390 1390
1391 // Cache miss: Jump to runtime. 1391 // Cache miss: Jump to runtime.
1392 GenerateMiss(masm); 1392 GenerateMiss(masm);
1393 } 1393 }
1394 1394
1395 1395
1396 void StoreIC::GenerateMiss(MacroAssembler* masm) { 1396 void StoreIC::GenerateMiss(MacroAssembler* masm) {
1397 // ----------- S t a t e ------------- 1397 // ----------- S t a t e -------------
1398 // -- r0 : value 1398 // -- r0 : value
1399 // -- r1 : receiver 1399 // -- r1 : receiver
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1621 Register reg = Assembler::GetRn(instr_at_patch); 1621 Register reg = Assembler::GetRn(instr_at_patch);
1622 patcher.masm()->tst(reg, Operand(kSmiTagMask)); 1622 patcher.masm()->tst(reg, Operand(kSmiTagMask));
1623 patcher.EmitCondition(eq); 1623 patcher.EmitCondition(eq);
1624 } 1624 }
1625 } 1625 }
1626 1626
1627 1627
1628 } } // namespace v8::internal 1628 } } // namespace v8::internal
1629 1629
1630 #endif // V8_TARGET_ARCH_ARM 1630 #endif // V8_TARGET_ARCH_ARM
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