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      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 
     18 void DispatchingDecoderVisitor::AppendVisitor(DecoderVisitor* new_visitor) {
     19   visitors_.remove(new_visitor);
     20   visitors_.push_back(new_visitor);
     21 }
     22 
     23 
     24 void DispatchingDecoderVisitor::PrependVisitor(DecoderVisitor* new_visitor) {
     25   visitors_.remove(new_visitor);
     26   visitors_.push_front(new_visitor);
     27 }
     28 
     29 
     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 
     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 
     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