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Issue 579153003: Move state sentinels into TypeFeedbackVector. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: ports. Created 6 years, 3 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_MIPS 7 #if V8_TARGET_ARCH_MIPS
8 8
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/bootstrapper.h" 10 #include "src/bootstrapper.h"
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2441 static void GenerateRecordCallTarget(MacroAssembler* masm) { 2441 static void GenerateRecordCallTarget(MacroAssembler* masm) {
2442 // Cache the called function in a feedback vector slot. Cache states 2442 // Cache the called function in a feedback vector slot. Cache states
2443 // are uninitialized, monomorphic (indicated by a JSFunction), and 2443 // are uninitialized, monomorphic (indicated by a JSFunction), and
2444 // megamorphic. 2444 // megamorphic.
2445 // a0 : number of arguments to the construct function 2445 // a0 : number of arguments to the construct function
2446 // a1 : the function to call 2446 // a1 : the function to call
2447 // a2 : Feedback vector 2447 // a2 : Feedback vector
2448 // a3 : slot in feedback vector (Smi) 2448 // a3 : slot in feedback vector (Smi)
2449 Label initialize, done, miss, megamorphic, not_array_function; 2449 Label initialize, done, miss, megamorphic, not_array_function;
2450 2450
2451 DCHECK_EQ(*TypeFeedbackInfo::MegamorphicSentinel(masm->isolate()), 2451 DCHECK_EQ(*TypeFeedbackVector::MegamorphicSentinel(masm->isolate()),
2452 masm->isolate()->heap()->megamorphic_symbol()); 2452 masm->isolate()->heap()->megamorphic_symbol());
2453 DCHECK_EQ(*TypeFeedbackInfo::UninitializedSentinel(masm->isolate()), 2453 DCHECK_EQ(*TypeFeedbackVector::UninitializedSentinel(masm->isolate()),
2454 masm->isolate()->heap()->uninitialized_symbol()); 2454 masm->isolate()->heap()->uninitialized_symbol());
2455 2455
2456 // Load the cache state into t0. 2456 // Load the cache state into t0.
2457 __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize); 2457 __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize);
2458 __ Addu(t0, a2, Operand(t0)); 2458 __ Addu(t0, a2, Operand(t0));
2459 __ lw(t0, FieldMemOperand(t0, FixedArray::kHeaderSize)); 2459 __ lw(t0, FieldMemOperand(t0, FixedArray::kHeaderSize));
2460 2460
2461 // A monomorphic cache hit or an already megamorphic state: invoke the 2461 // A monomorphic cache hit or an already megamorphic state: invoke the
2462 // function without changing the state. 2462 // function without changing the state.
2463 __ Branch(&done, eq, t0, Operand(a1)); 2463 __ Branch(&done, eq, t0, Operand(a1));
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4859 MemOperand(fp, 6 * kPointerSize), 4859 MemOperand(fp, 6 * kPointerSize),
4860 NULL); 4860 NULL);
4861 } 4861 }
4862 4862
4863 4863
4864 #undef __ 4864 #undef __
4865 4865
4866 } } // namespace v8::internal 4866 } } // namespace v8::internal
4867 4867
4868 #endif // V8_TARGET_ARCH_MIPS 4868 #endif // V8_TARGET_ARCH_MIPS
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