1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "src/v8.h"
6 
7 #if V8_TARGET_ARCH_ARM64
8 
9 #include "src/arm64/decoder-arm64.h"
10 #include "src/globals.h"
11 #include "src/utils.h"
12 
13 
14 namespace v8 {
15 namespace internal {
16 
17 
AppendVisitor(DecoderVisitor * new_visitor)18 void DispatchingDecoderVisitor::AppendVisitor(DecoderVisitor* new_visitor) {
19   visitors_.remove(new_visitor);
20   visitors_.push_back(new_visitor);
21 }
22 
23 
PrependVisitor(DecoderVisitor * new_visitor)24 void DispatchingDecoderVisitor::PrependVisitor(DecoderVisitor* new_visitor) {
25   visitors_.remove(new_visitor);
26   visitors_.push_front(new_visitor);
27 }
28 
29 
InsertVisitorBefore(DecoderVisitor * new_visitor,DecoderVisitor * registered_visitor)30 void DispatchingDecoderVisitor::InsertVisitorBefore(
31     DecoderVisitor* new_visitor, DecoderVisitor* registered_visitor) {
32   visitors_.remove(new_visitor);
33   std::list<DecoderVisitor*>::iterator it;
34   for (it = visitors_.begin(); it != visitors_.end(); it++) {
35     if (*it == registered_visitor) {
36       visitors_.insert(it, new_visitor);
37       return;
38     }
39   }
40   // We reached the end of the list. The last element must be
41   // registered_visitor.
42   DCHECK(*it == registered_visitor);
43   visitors_.insert(it, new_visitor);
44 }
45 
46 
InsertVisitorAfter(DecoderVisitor * new_visitor,DecoderVisitor * registered_visitor)47 void DispatchingDecoderVisitor::InsertVisitorAfter(
48     DecoderVisitor* new_visitor, DecoderVisitor* registered_visitor) {
49   visitors_.remove(new_visitor);
50   std::list<DecoderVisitor*>::iterator it;
51   for (it = visitors_.begin(); it != visitors_.end(); it++) {
52     if (*it == registered_visitor) {
53       it++;
54       visitors_.insert(it, new_visitor);
55       return;
56     }
57   }
58   // We reached the end of the list. The last element must be
59   // registered_visitor.
60   DCHECK(*it == registered_visitor);
61   visitors_.push_back(new_visitor);
62 }
63 
64 
RemoveVisitor(DecoderVisitor * visitor)65 void DispatchingDecoderVisitor::RemoveVisitor(DecoderVisitor* visitor) {
66   visitors_.remove(visitor);
67 }
68 
69 
70 #define DEFINE_VISITOR_CALLERS(A)                                \
71   void DispatchingDecoderVisitor::Visit##A(Instruction* instr) { \
72     if (!(instr->Mask(A##FMask) == A##Fixed)) {                  \
73       DCHECK(instr->Mask(A##FMask) == A##Fixed);                 \
74     }                                                            \
75     std::list<DecoderVisitor*>::iterator it;                     \
76     for (it = visitors_.begin(); it != visitors_.end(); it++) {  \
77       (*it)->Visit##A(instr);                                    \
78     }                                                            \
79   }
80 VISITOR_LIST(DEFINE_VISITOR_CALLERS)
81 #undef DEFINE_VISITOR_CALLERS
82 
83 
84 } }  // namespace v8::internal
85 
86 #endif  // V8_TARGET_ARCH_ARM64
87