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